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IO Global Remote
Who are we? IOHK, is a technology company focused on Blockchain research and development. We are renowned for our scientific approach to blockchain development, emphasizing peer-reviewed research and formal methods to ensure security, scalability, and sustainability. Our projects include decentralized finance (DeFi), governance, and identity management, aiming to advance the capabilities and adoption of blockchain technology globally. We invest in the unknown, applying our curiosity and desire for positive change to everything we do. By fueling creativity, innovation, and progress within our teams, our products and services are designed for people to be fearless, to be changemakers. What the role involves: The primary purpose of this role is to develop high-quality software solutions that meet customer needs. You will be responsible for writing high-quality code for our products. You will work with cutt

Who are we?

IOHK, is a technology company focused on Blockchain research and development. We are renowned for our scientific approach to blockchain development, emphasizing peer-reviewed research and formal methods to ensure security, scalability, and sustainability. Our projects include decentralized finance (DeFi), governance, and identity management, aiming to advance the capabilities and adoption of blockchain technology globally.

We invest in the unknown, applying our curiosity and desire for positive change to everything we do. By fueling creativity, innovation, and progress within our teams, our products and services are designed for people to be fearless, to be changemakers.

What the role involves:

The primary purpose of this role is to develop high-quality software solutions that meet customer needs. You will be responsible for writing high-quality code for our products. You will work with cutting-edge research and technology. To support you on this challenge, our products have software architects, product managers, project managers, formal methods specialists and QA test engineers, with whom you must communicate professionally, effectively and efficiently.

The Plutus Core team is building the core of Cardano’s smart contract functionality on the bedrock of functional programming languages. This interdisciplinary team carries out original R&D and turns the results into production systems. This team has designed and implemented four languages for Cardano smart contracts (Plinth, Plutus IR, Typed Plutus Core, and Untyped Plutus Core) and improved the compiler and runtime with more built-in functions and optimizations, expanding the expressiveness, capability and security of smart contracts on Cardano. The team has formalized the semantics of Typed and Untyped Plutus Core using Agda, developed novel compilation techniques for data types, and Implemented a compiler for compiling Plinth into Untyped Plutus Core, which uses Plutus IR and Typed Plutus Core as intermediate representations. They also implemented evaluators for Typed and Untyped Plutus Core, in Haskell and Agda. They also contributed to Cardano ledger updates for smart contracts, and published peer-reviewed research. .

Coding and Development:

  • Write and maintain code in Haskell.
  • Use Git for version control, committing often, and submitting small pull requests.
  • Write clean, efficient code that meets acceptance criteria and specifications.

Testing and Debugging:

  • Write and execute unit, property-based, and integration tests to ensure code quality.
  • Identify and fix bugs, including emergency fixes for severity 1 issues.
  • Troubleshoot, debug, and upgrade existing software.

Code Reviews and CI/CD:

  • Conduct and participate in code reviews to maintain code quality.
  • Implement and manage CI pipelines using GitHub Actions, troubleshooting and improving as needed, optionally using Nix.

Software Architecture and Security:

  • Design and architect software components.
  • Design secure software and perform security analysis.
  • Review specifications from architects and formal methods specialists.
  • Contribute to algorithm design.

Documentation and Research:

  • Write clear software documentation and technical user manuals
  • Simplify complex blockchain concepts.
  • Read and comprehend research papers on cryptography and blockchain.

Release Management and Agile Practices:

  • Follow release processes, manage cabal project SRPs, and use GitHub Actions.
  • Split work into tickets with acceptance criteria and maintain ticket status using Jira.
  • Adhere to agile software development practices.

Blockchain and Distributed Systems Knowledge:

  • Understand Cardano, Blockchain, and Distributed systems.
  • Be knowledgeable in distributed and concurrent computation.

Collaboration and Independence:

  • Work independently on software tasks, being proactive and requiring minimal supervision.
  • Collaborate with teams across multiple time zones.
  • Integrate software components and third-party libraries.
  • Verify and deploy programs and systems.

Plutus Core

  • Enhance Plutus Core tooling to create a world-class product that meets diverse user needs within technical constraints of the system.
  • Collaborate with engineers and researchers to design and implement essential features for Cardano smart contract languages, compilers, and runtime systems, along with comprehensive user documentation.
  • Engage in technical discussions with peers and stakeholders to drive informed decision-making.
  • Conduct thorough code and design reviews to ensure high-quality deliverables.
  • Provide expert Plutus guidance to partner teams, ensuring alignment and knowledge sharing across projects.

Who you are:

  • Bachelor’s degree in Computer Science, or equivalent practical experience.
  • 1 year of experience with software development, data structures and algorithms.
  • Experience in programming in Haskell or another functional language
  • Experience in designing and implementing programming languages, compilers and runtime systems
  • Exposure to blockchain and UTXO-based ledgers would be a bonus
  • Strong English communication skills, in both speaking and writing
  • Carrying out software development tasks independently
  • Leading by example to build a culture of craftsmanship and innovation
  • Writing documentation for code and technical user manuals

Are you an IOGer?

Do you find yourself questioning the status quo? Do you tinker with ideas and long to turn those ideas into solutions? Are you able to spark thoughtful debates, bringing out the inquisitiveness in others? Does the promise of continuously growing excite you? Then get ready to reimagine everything you thought wasn’t possible because that’s what it means to be an IOGer - we don’t set limits, we break them.

  • Remote work
  • Laptop reimbursement
  • New starter package to buy hardware essentials (headphones, monitor, etc)
  • Learning & Development opportunities
  • Competitive PTO

At IOG, we value diversity and always treat all employees and job applicants based on merit, qualifications, competence, and talent. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

Apply Now:

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RISC Zero Remote
🗓  Thu, Jan 16 Crypto Cryptography Research Rust Travel Zero-knowledge 401k Flexible/unlimited PTO Health/medical insurance
About the Role We are seeking a world-class Senior Software Engineer to enhance our zero-knowledge proof system and stay at the forefront of cryptographic innovation. This role involves the development of advanced cryptographic protocols tailored for zero-knowledge proof applications and the enhancement of our core proof system, zkVM. We are looking for candidates who are deeply invested in the field of zk cryptography and who exhibit a strong sense of curiosity and dedication to the craft. If you have a track record of developing cryptographic solutions and are excited about pioneering new protocols in the ZKP space, we would love to hear from you. Key Responsibilities Develop and refine cryptographic protocols for various use cases of ZKPs. Continuously improve the zkVM, our core proof system, ensuring its robustness and efficiency. Pro

About the Role

We are seeking a world-class Senior Software Engineer to enhance our zero-knowledge proof system and stay at the forefront of cryptographic innovation. This role involves the development of advanced cryptographic protocols tailored for zero-knowledge proof applications and the enhancement of our core proof system, zkVM.

We are looking for candidates who are deeply invested in the field of zk cryptography and who exhibit a strong sense of curiosity and dedication to the craft. If you have a track record of developing cryptographic solutions and are excited about pioneering new protocols in the ZKP space, we would love to hear from you.

Key Responsibilities

  • Develop and refine cryptographic protocols for various use cases of ZKPs.

  • Continuously improve the zkVM, our core proof system, ensuring its robustness and efficiency.

  • Provide support for ZKP-enabled cryptographic protocols, including analysis for partners and the creation of demonstrations.

  • Collaborate with team members to support platform development from a cryptographic perspective.

  • Conduct meticulous code reviews for contributions that involve sensitive cryptographic elements.

Minimum Qualifications

  • Proven applied cryptography experience, such as having written cryptographic code that is currently utilized in production environments.

  • Deep understanding of the Rust programming language. 

  • Familiarity with Zero-Knowledge Proof (ZKP) systems and a passion for keeping up to date with advancements in this field.

  • A strong mathematical foundation, capable of engaging with new research topics in mathematics related to cryptography.

  • Exceptional interpersonal skills to collaborate effectively with team members and external partners.

  • An acute attention to detail, ensuring precision in code development and protocol design.

What We Offer

  • Salary: Competitive range of $237-288K USD

  • Professional Development: Access to leadership coaching and numerous learning opportunities.

  • Work Flexibility: Remote work with up to 20% travel for team meetings and events, plus a Seattle co-working space.

  • Health Insurance: Comprehensive coverage with Regence Blue Cross Blue Shield (US employee), including significant premium contributions. Gold-level insurance for international employees via Deel.

  • Retirement Plan: 401k to support your future or statutory plans in your given country.

  • Equity: Generous company equity via Profit Incentive Units (PIUs), vesting monthly.

  • Vacation: Unlimited PTO, with 3-5 weeks standard.

  • Holidays: 11 paid holidays for rest and rejuvenation.

  • Culture: A supportive, collaborative, and inclusive work environment.

About Us

We're on a mission to transform the internet for the better. Our team of innovative hackers, visionary futurists, and passionate nerds is devoted to creating a digital space that's safe, inclusive, and empowers everyone. By developing the world's first zero-knowledge virtual machine, we've laid the groundwork for running arbitrary code as a zero-knowledge proof. Utilizing a ZK Coprocessor to assist or enhance the compute of an on-chain application, we have created a unique package - the RISC Zero ZK Coprocessor, comprised of the zkVM, Bonsai, and ETH Relay. Now, we're ambitiously constructing an entire ecosystem around this groundbreaking technology.

Before You Apply:

  • E-Verify: All U.S.-based employees must complete an E-Verify check.

  • Accessibility: Need accommodations? Contact us at email.

  • Work Authorization: Must have the legal right to work in the country you are located in. No visa sponsorships.

  • Privacy: By applying, you consent to the processing of your data per our privacy policy.

  • Compliance: We adhere to local labor laws. Employment terms are based on location. Non US employees will be hired through our Employer of Record Deel.

  • Background Check: Final candidates before hired will undergo a background check.

  • Equal Opportunity: We welcome all qualified applicants, period.

  • Language Requirement: This position requires proficiency in English.

Apply Now:

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Interop Labs Remote
As a Blockchain Operations Engineer, you will be responsible for the upkeep and maintenance of the Axelar Network. You will take ownership of the network and its functions and ensure smooth operations. You will work with BD and Product teams to prioritize various initiatives around the network and contribute to tooling for the network. Your responsibilities Manage releases and rollout upgrades to the network in collaboration with our validators. Develop and iterate on tooling around network deployment, monitoring, security and other network ops related functions. Drive governance of the network including the delegation program. Strengthen our security posture and refining protocols for offline signing. Improve the infrastructure and deployment to improve team’s agility and velocity. Improve and iterate on internal tooling that our protocol engineers use to develop new

As a Blockchain Operations Engineer, you will be responsible for the upkeep and maintenance of the Axelar Network. You will take ownership of the network and its functions and ensure smooth operations. You will work with BD and Product teams to prioritize various initiatives around the network and contribute to tooling for the network.

Your responsibilities

  • Manage releases and rollout upgrades to the network in collaboration with our validators.
  • Develop and iterate on tooling around network deployment, monitoring, security and other network ops related functions.
  • Drive governance of the network including the delegation program.
  • Strengthen our security posture and refining protocols for offline signing.
  • Improve the infrastructure and deployment to improve team’s agility and velocity.
  • Improve and iterate on internal tooling that our protocol engineers use to develop new features.

Your Profile

  • Good understanding of cryptography.
  • Scripting and tooling experience preferably in Javascript/Golang.
  • Experience managing a blockchain network and coordinating upgrades.
  • Familiarity with containers and Kubernetes in a cloud environment.
  • Experience with monitoring and alerting tools (Grafana, Prometheus, etc.).
  • Familiarity with modern CI/CD tools.
  • Security first coding and deployment mindset.
  • Understanding of blockchains / DeFi as a user.
  • Experience with the cosmos sdk and cosmos based networks.
  • Familiarity with the IBC protocol.
  • Experience operating validators or nodes for various blockchains.
  • Strong sense of ownership, with the ability to lead and share knowledge to reach solutions as well as the keenness to learn.
  • You enjoy being hands on, being a self starter that thrives well in ambiguity.
  • A problem solver at heart that can envision successful outcomes.

Why us?

  • Autonomous, distributed environment with the opportunity to work collaboratively in a diverse team worldwide.
  • The scope to contribute to high-impact work and make a difference in a decentralized protocol.
  • The chance to challenge yourself while learning heaps of stuff in the process.
  • Unlimited time off throughout the year to rest and recharge.
  • Competitive compensation with stock options, experiencing growth from the initial phase.

About us

Interop Labs builds interoperability technology.

Interoperability between blockchains is crucial technology infrastructure for the growth of Web3 and the advancement of internet technology as a whole. Interop Labs is the initial developer of Axelar Network - the programmable Web3 interoperability platform, scaling the next generation of internet applications to billions of users. Axelar network’s key attributes are programmability, security and scalability.

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Logos Remote
Logos is a movement supporting the development of the decentralised web. Logos technologies lay the foundations for a freer internet upon which communities can evolve into network states. Each protocol in the Logos stack seeks to empower its users while upholding civil liberties and fundamental freedoms. About Waku A family of generalised P2P communications protocols. The messaging layer of the Logos stack. Waku is private, censorship resistant, modular, and scalable by design. This combination of features makes Waku suitable to run in a wide range of environments, including phones and browsers, while upholding its users’ rights to private communications. About Status A blockchain-based super app that combines private messaging, a wallet, a DApp browser, and tools for web3 community management. Status aims to be a truly decentralised communication tool and, since its founding in 2017, ha

Logos is a movement supporting the development of the decentralised web. Logos technologies lay the foundations for a freer internet upon which communities can evolve into network states. Each protocol in the Logos stack seeks to empower its users while upholding civil liberties and fundamental freedoms.

About Waku

A family of generalised P2P communications protocols. The messaging layer of the Logos stack. Waku is private, censorship resistant, modular, and scalable by design. This combination of features makes Waku suitable to run in a wide range of environments, including phones and browsers, while upholding its users’ rights to private communications.

About Status

A blockchain-based super app that combines private messaging, a wallet, a DApp browser, and tools for web3 community management. Status aims to be a truly decentralised communication tool and, since its founding in 2017, has been progressively removing reliance on centralised infrastructure. The application leverages Waku and other technologies developed under the IFT umbrella.

Key responsibilities

  • Research and document the current chat and related app protocols implemented in the Status application
  • Design and specify new application protocols that use Waku, Codex and other IFT technologies; ensure the protocols are securely scalable and privacy-preserving.
  • Use a layered protocol approach that is mindful and explicit about what it requires, what it provides, under what threat models, and with what trade-offs.
  • Build PoCs to demonstrate the working of new or modified protocols in nimlang and JavaScript.
  • Liaise with the Waku research team to understand the Waku protocols and how to build secure applications using them.
  • Liaise with Status leadership to agree on properties for new protocols and related user-facing features.
  • Collaborate with the expert researchers within Vac and apply their specialised knowledge in cryptography and other related fields.
  • Collaborate with Waku test engineers to simulate and test behaviour of new and modified protocols

You will ideally have

  • A strong academic background with proven experience in applied research and translating research findings into user-facing products.
  • Excellent verbal and written skills, especially in interpreting and compiling new technical specification documents
  • Experience with off-the-shelf networking stacks such as libp2p
  • Familiarity with encryption and key exchange mechanisms
  • Experience with building end-to-end instant messaging protocols
  • Experience with low level/strongly typed languages (C/C++/Go/Rust)
  • A strong alignment to our mission: https://free.technology/; https://waku.org/about/

Bonus points:

  • Comfortable working remotely and asynchronously
  • Experience working for an open source organisation.
  • Experience with cryptography such as OTR, X3DH, Noise protocol.
  • Experience in, and passion for, blockchain and decentralized technologies.

[Don’t worry if you don’t meet all of these criteria, we’d still love to hear from you anyway if you think you’d be a great fit for this role. Just explain to us why in your cover letter].

Hiring process

  • Interview with our People Ops team
  • Interview with Waku Research Lead
  • Pair programming with Waku Team member on take home task
  • Interview with Chat/App Protocol Team Lead and Status App Lead
  • Interview with Waku Lead

The steps may change along the way if we see it makes sense to adapt the interview stages, so please consider the above as a guideline.

Compensation

The expected compensation range for this role is $120,000 - $150,000 (negotiable, dependent on how we assess your skills and experience throughout our interview process). We are happy to pay in any mix of fiat/crypto.

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BOB Remote
We are building BOB, a hybrid L2 that combines the best of Bitcoin and Ethereum. We seek an experienced Senior Cryptography Engineer to support the design, implementation, and launch of a novel BitVM bridge with Bitcoin security. The role You enjoy proactively identifying and resolving engineering problems by applying your knowledge on cryptographic techniques. You will lead the implementation and improvements around the cryptographic building blocks (SNARKs, Winternitz signatures, …) of the BitVM bridge. Working closely with the core team, you’ll contribute to research problems and be a trusted point of contact for improving BOB. What you will do Architect and build the BOB Bitcoin bridge leveraging BitVM in close collaboration with the core team. Architect and build the BOB Bitcoin security infrastructure with Babylon in close collaboration with the core team. Engage in research discussi

We are building BOB, a hybrid L2 that combines the best of Bitcoin and Ethereum. We seek an experienced Senior Cryptography Engineer to support the design, implementation, and launch of a novel BitVM bridge with Bitcoin security.

The role

You enjoy proactively identifying and resolving engineering problems by applying your knowledge on cryptographic techniques. You will lead the implementation and improvements around the cryptographic building blocks (SNARKs, Winternitz signatures, …) of the BitVM bridge. Working closely with the core team, you’ll contribute to research problems and be a trusted point of contact for improving BOB.

What you will do

  • Architect and build the BOB Bitcoin bridge leveraging BitVM in close collaboration with the core team.
  • Architect and build the BOB Bitcoin security infrastructure with Babylon in close collaboration with the core team.
  • Engage in research discussions with the core team on the BOB core protocols.
  • Share knowledge with other team members on cryptography and Bitcoin best practices.

Requirements

  • Three years or more of hands-on Rust development experience.
  • One year of experience of deploying protocols into production that leverage advanced cryptographic techniques (SNARKs, STARKS, MPC, …) with measurable TVL.
  • Strong interest in Bitcoin, including Bitcoin script, BitVM, and Taproot.
  • Excellent communication skills in a remote setting.

Nice to have

  • Background in consensus protocols
  • Experience with Solidity
  • Contributions to open-source projects

Benefits

  • Research-oriented team
  • Solve novel problems
  • Stock options
  • Remote working
  • 30-day vacation
  • Allowance for a co-working space
  • Yearly retreat
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Twine Remote
Who We Are Twine is building a next-generation multi-chain ZK Layer 2 (L2) platform focused on advanced cross-chain interoperability . Our team comprises globally distributed cryptographers, engineers, and blockchain enthusiasts driven by the mission to unlock trust-minimized transactions across different Layer 1 (L1) networks. We’ve secured backing from top VCs and prominent figures in the Web3 space , including Founders of Solana, Celestia, LayerZero, Sei, Nebra, Espresso, Gitcoin and prominent VCs (1kx, Robot Ventures) ensuring a strong foundation and network for our ambitious roadmap. What We’re Doing Our goal is to enable secure, scalable, and synchronous cross-chain transactions by leveraging ZK proof systems , sophisticated proof aggregation techniques, and distributed protocols. Twine aggregates security from multiple L1s without relying on traditional b

Who We Are

Twine is building a next-generation multi-chain ZK Layer 2 (L2) platform focused on advanced cross-chain interoperability. Our team comprises globally distributed cryptographers, engineers, and blockchain enthusiasts driven by the mission to unlock trust-minimized transactions across different Layer 1 (L1) networks. We’ve secured backing from top VCs and prominent figures in the Web3 space, including Founders of Solana, Celestia, LayerZero, Sei, Nebra, Espresso, Gitcoin and prominent VCs (1kx, Robot Ventures) ensuring a strong foundation and network for our ambitious roadmap.

What We’re Doing

Our goal is to enable secure, scalable, and synchronous cross-chain transactions by leveraging ZK proof systems, sophisticated proof aggregation techniques, and distributed protocols. Twine aggregates security from multiple L1s without relying on traditional bridging or wrapped assets—offering developers a unified platform for building decentralized applications that interact across multiple blockchains seamlessly. We integrate cutting-edge proving systems like GKR along with top performing general purpose ZK VMs (SP1 ZKVM from Succinct, Risc0) and other modern cryptographic frameworks to scale and secure multi-chain interactions.

What You’ll Do

  • Design & Architect Protocols Lead and shape Twine’s core protocol with an emphasis on ZK and distributed technologies. Ensure that modularity, scalability, and security remain cornerstones of our architecture.
  • ZK & L2 Leadership Research, prototype, and pioneer the integration of advanced zero-knowledge techniques (e.g., GKR, PCD and others) and next-gen rollup architectures into Twine’s multi-chain platform.
  • Hands-On Rust Development Develop high-performance Rust code for cryptographic proof generation, verification, and protocol logic—emphasizing concurrency, memory safety, and optimized cryptographic operations.
  • Distributed Protocols & Cryptography Spearhead the development and refinement of distributed protocols, ensuring fault-tolerant design that can scale across multiple chains and adversarial conditions.
  • Mentorship & Collaboration Drive technical excellence by mentoring engineers and cryptographers, conducting thorough code reviews, and standardizing best practices for testing and security.
  • Security & Audits Define security best practices, coordinate formal audits, and manage vulnerability assessments for core protocol components.

⠀ What We’re Looking For

  • Expert Rust Skills Demonstrable command of Rust for systems programming, particularly in performance-critical cryptographic routines and distributed systems.
  • ZK Cryptography Experience Hands-on experience with zero-knowledge protocols and familiarity with foundational and advanced concepts.
  • Distributed Protocols Knowledge Proven experience designing and deploying distributed protocols, consensus mechanisms, or P2P networks in production environments.
  • Systems & Architecture Strong background in architecting resilient, scalable systems and writing high-quality code for mission-critical applications.
  • Leadership & Communication Adept at leading technical discussions, explaining cryptographic and distributed systems concepts to diverse audiences, and collaborating across a global team.
  • Security Mindset Deep understanding of secure coding practices, formal verification methodologies, and protocol design principles.
  • Adaptability & Autonomy Comfortable operating in a fast-paced environment, taking initiative, and delivering impactful results.

⠀ Why Twine

  • High-Impact Role Help define the future of cross-chain L2 solutions, combining groundbreaking cryptographic research and real-world use cases.
  • Cutting-Edge Tech Work at the forefront of ZK innovation and shape the multi-chain infrastructure that powers tomorrow’s decentralized applications.
  • Remote-First Culture Join a distributed team with the flexibility to work from anywhere in the world.
  • Tier 1 Backing Benefit from access to top-tier investors, advisors, and prominent Web3 figures who support our mission and growth.
  • Collaborative Environment Engage in a mission-driven team that values curiosity, creativity, and teamwork—where your contributions directly drive innovation.

⠀ If this resonates with you and you’re excited about shaping the future of ZK-powered, trust-minimized cross-chain solutions, we want to hear from you.

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Nethermind Remote
What are we all about? We are a team of builders and researchers on a mission to empower enterprises and developers worldwide to access and build on decentralized systems. Our expertise covers several domains: Ethereum and Starknet protocol engineering, layer-2, AI, cryptography research, protocol research, decentralized finance (DeFi), security auditing, formal verification, real-time monitoring, smart contract development, and dapps and enterprise engineering. Working to solve some of the most challenging problems in the blockchain space, we frequently collaborate with renowned companies, such as Ethereum Foundation, Starknet Foundation, Gnosis Chain, Flashbots, Forta Protocol, Lido, EigenLayer, Open Zeppelin, RISCZero, Aleph Zero, and many more. Today, we are a 350+ strong team working remotely across 66+ countries. The role We’re seeking an experienced Smart Contract Security Auditor to join our t

What are we all about?

We are a team of builders and researchers on a mission to empower enterprises and developers worldwide to access and build on decentralized systems.

Our expertise covers several domains: Ethereum and Starknet protocol engineering, layer-2, AI, cryptography research, protocol research, decentralized finance (DeFi), security auditing, formal verification, real-time monitoring, smart contract development, and dapps and enterprise engineering.

Working to solve some of the most challenging problems in the blockchain space, we frequently collaborate with renowned companies, such as Ethereum Foundation, Starknet Foundation, Gnosis Chain, Flashbots, Forta Protocol, Lido, EigenLayer, Open Zeppelin, RISCZero, Aleph Zero, and many more.

Today, we are a 350+ strong team working remotely across 66+ countries.

The role

We’re seeking an experienced Smart Contract Security Auditor to join our team in safeguarding Web3 protocols and applications. As a key member of our security team, you’ll conduct comprehensive audits of smart contracts while contributing to our blockchain infrastructure development.

Responsibilities:

  • Work directly with protocols in the Solana, Ethereum, StarkNet, and Polkadot ecosystems to review their code and help secure their protocols.
  • Perform thorough security audits of smart contracts written in Solidity
  • Develop and maintain security tooling using Golang to enhance our audit capabilities
  • Collaborate with teammates to maintain and continually improve our existing blockchain security tools using modern software engineering practices.
  • Develop new blockchain security tools.
  • Engage in meetings with clients to discuss security and best practice improvements.

Skills:

  • Understanding of blockchain technology and the Ethereum network.
  • Solid understanding of the Ethereum Virtual Machine.
  • Fluency in Solidity smart contract security and Golang audit.
  • Detailed understanding of common smart contract vulnerabilities.
  • Fluency with common tools and frameworks used for the development and security analysis of smart contracts.
  • Strong debugging skills and/or experience in reverse engineering.
  • Portfolio of audit report.

Nice to Haves:

  • Good written and verbal communication skills.
  • Understanding of most common DeFi applications.
  • Publicly visible audit reports in your portfolio.

Keep up to date on what we are working on by following us on our social channels:

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Nethermind APAC
What are we all about? We are a team of builders and researchers on a mission to empower enterprises and developers worldwide to access and build on decentralized systems. Our expertise covers several domains: Ethereum and Starknet protocol engineering, layer-2, AI, cryptography research, protocol research, decentralized finance (DeFi), security auditing, formal verification, real-time monitoring, smart contract development, and dapps and enterprise engineering. Working to solve some of the most challenging problems in the blockchain space, we frequently collaborate with renowned companies, such as Ethereum Foundation, Starknet Foundation, Gnosis Chain, Flashbots, Forta Protocol, Lido, EigenLayer, Open Zeppelin, RISCZero, Aleph Zero, and many more. Today, we are a 350+ strong team working remotely across 66+ countries. Links: Nethermind - Crypto, AI and Robotics Projects:

What are we all about?

We are a team of builders and researchers on a mission to empower enterprises and developers worldwide to access and build on decentralized systems.

Our expertise covers several domains: Ethereum and Starknet protocol engineering, layer-2, AI, cryptography research, protocol research, decentralized finance (DeFi), security auditing, formal verification, real-time monitoring, smart contract development, and dapps and enterprise engineering.

Working to solve some of the most challenging problems in the blockchain space, we frequently collaborate with renowned companies, such as Ethereum Foundation, Starknet Foundation, Gnosis Chain, Flashbots, Forta Protocol, Lido, EigenLayer, Open Zeppelin, RISCZero, Aleph Zero, and many more.

Today, we are a 350+ strong team working remotely across 66+ countries.

Links: Nethermind - Crypto, AI and Robotics

Projects:

What We Need

  • An engineering manager who is hyper-focused on delivering concrete results while staying excited by the big picture.
  • Experienced in leading software teams that ship fast, experiment often, and hand off to product at the right time.
  • Hands-on coder but knows when to pull back.
  • Views programming languages as easily learnable tools, not identities.
  • Driven to optimize everything with AI, leveraging both traditional software and cutting-edge techniques.
  • Understanding blockchain or decentralized systems and LLMs is a plus. Personal projects in these areas are required.
  • Fully open attitude: embrace the public domain. Production must be robust, but everything else (ideas, prototypes, experiments) should be publicly accessible.

Role & Responsibilities

  • Hire and guide leads for multiple AI x Crypto x Blockchain projects.
  • Oversee rapid PoC delivery, ensuring minimal friction and maximum velocity.
  • Collaborate closely with product managers for timely, high-quality releases.
  • Contribute code where it counts.
  • Align with an open ethos—innovate in public, build out loud, and keep the end-user ecosystem thriving.
  • Comfortably terminate and iterate on projects.
  • Liaise with the group manager to set up new AI x Crypto and Robotics projects.

Requirements

  • Evidence of having led multiple small to large teams
  • Experience shipping open-source code with considerable adoption
  • You must be replacing all your interfaces with LLMs

Nice to have

  • Experience shipping projects from genesis
  • Robotics is not required (we have a hardware team), but some understanding of this space is good
  • If these projects are for you, you will feel it. It will be fun, but it will be hard when the air bubble explodes. We will keep building.

Keep up to date on what we are working on by following us on our social channels:

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Ethereum Foundation Remote
About the Ethereum Foundation(EF) The Ethereum Foundation (EF) is a global non-profit organization dedicated to supporting Ethereum and related technologies. Our mission is to do what is best for Ethereum’s long-term success. Our role is to allocate resources to critical projects, to be a valued voice within the Ethereum ecosystem, and to advocate for Ethereum to the outside world. About the Privacy and Scaling Explorations (PSE) Team PSE is a research and development team within EF focused on advancing privacy and scaling technologies. Our mission : Accelerate cryptography to enhance human collaboration. We achieve this by developing open-source tools, funding innovative research, and educating the ecosystem to make privacy-preserving and scalable technologies accessible to all.
About the Ethereum Foundation(EF)
The Ethereum Foundation (EF) is a global non-profit organization dedicated to supporting Ethereum and related technologies. Our mission is to do what is best for Ethereum’s long-term success. Our role is to allocate resources to critical projects, to be a valued voice within the Ethereum ecosystem, and to advocate for Ethereum to the outside world.
About the Privacy and Scaling Explorations (PSE) Team
PSE is a research and development team within EF focused on advancing privacy and scaling technologies.
Our mission: Accelerate cryptography to enhance human collaboration.
We achieve this by developing open-source tools, funding innovative research, and educating the ecosystem to make privacy-preserving and scalable technologies accessible to all.
About the Role
We’re looking for a passionate Developer Relations (DevRel) professional to connect developers with our zero-knowledge and cryptographic technologies, build an enthusiastic community around our work, and promote technologies to the ecosystem and society.
Your mission: Make cutting-edge cryptographic tools (like Semaphore and Anon Aadhaar) approachable, inspire developers to integrate them into real-world applications, and foster a thriving ecosystem of builders.
You’ll act as the bridge between PSE's engineers and external developers, creating accessible resources, hosting events, and supporting the wider community to build privacy-conscious applications. You will also establish partnerships and collaborations through conferences, events, and online forums, shaping the narrative of our technologies' role in the ecosystem. If you’re excited about empowering developers, fostering vibrant communities, promoting open-source innovation, and advancing cryptographic adoption to make a positive impact on society, this role is for you.

Values Alignment

    • We are dedicated to advancing cryptographic research and development to enhance and accelerate human collaboration.
    • We are building public goods, including open-source software, documentation, and educational resources, and promoting their adoption.
    • We emphasize open participation and a cooperative mindset in a fully remote and decentralized working environment.
    • We are open-minded and keen on building the next generation of infrastructure.
    • We strive to address the fundamental challenges within the ecosystem and the real world.

Requirements

    • Experience: 2+ years of DevRel or relevant professional experience.
    • Communication: Skills that enable open community participation, foster active discussions, and promote continuous knowledge sharing.
    • Translation: Proven ability to simplify and communicate complex technical concepts in developer-friendly terms.
    • Community Building: Demonstrated experience fostering developer communities, ideally in blockchain or cryptography ecosystems.
    • Technical Skills: Basic programming knowledge (e.g., JavaScript, Solidity) and familiarity with blockchain and cryptographic frameworks.
    • Open-Source: A track record of open-source contributions (e.g., on GitHub).
    • Mindset: Self-motivated, collaborative, and comfortable in a remote, decentralized working environment.
    • Attitude: Patience and dedication when engaging with external developers and supporting communities.

Responsibilities

    • Developer Engagement: Act as the main point of contact for developers, shaping their experience with PSE tools, addressing challenges, and driving the adoption of cryptographic technologies through actionable feedback.
    • Content Creation: Produce high-quality documentation, tutorials, and learning materials, including developer blogs, GitHub repositories, and video tutorials tailored to various audiences.
    • Community Building: Lead initiatives to build and nurture a thriving global community of developers passionate about advancing cryptographic innovation.
    • Promotion: Organize and participate in developer events, workshops, and online forums, which may occasionally require travel, to foster the adoption of technologies.
    • Onboarding Improvement: Identify and resolve pain points in the developer journey, enhancing the usability of tools and resources in the ecosystem.
    • Ecosystem Growth: Track and improve community adoption metrics (e.g., projects built, repository activity, engagement in community channels) with a focus on achieving measurable goals.
    • Collaboration: Build relationships with key ecosystem players, groups, and projects to drive collaborative initiatives and promote public goods.
    • Event Strategy: Develop and execute an event roadmap, prioritizing opportunities to showcase PSE’s tools and solutions.
    • Development Support: Assist in the development of new features and improvements by providing testing support and sharing feedback from external developers.

Nice-to-have

    • Experience presenting at conferences or running community workshops.
    • Familiarity with zero-knowledge proofs or advanced cryptographic techniques.
    • Hands-on experience building smart contracts and ZK circuits, in particular Circom and Halo2.
Why Join Us?
At PSE, you’ll help make cryptography mainstream by empowering developers globally with bleeding-edge open-source tools. You’ll have the freedom to experiment, collaborate with world-class researchers and engineers, and drive impactful innovations in decentralized systems, shaping the future of privacy and scalability.

Apply Now:

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Clearmatics London
About Clearmatics Clearmatics is a blockchain protocol engineering company that builds decentralised financial market infrastructures that are more open, efficient, and resilient than those serving legacy market structures of today. We have a bold vision for this new market infrastructure - enabling market participants to solve currently unaddressed problems of the real economy, including “missing markets” problems. We aim to achieve our vision through technologies that allow peer-to-peer trading and settlement within new markets, and with digital assets whose values track real-world risk factors that currently have no suitable expression in legacy markets. No matter the nature of a risk factor, whether macro-economic or climactic, our mission is to make important risk factors tradable; by anyone, anywhere, without reliance on financial intermediaries. We are building this new infrastructure in collaboration with incredible trading and

About Clearmatics

Clearmatics is a blockchain protocol engineering company that builds decentralised financial market infrastructures that are more open, efficient, and resilient than those serving legacy market structures of today.

We have a bold vision for this new market infrastructure - enabling market participants to solve currently unaddressed problems of the real economy, including “missing markets” problems. We aim to achieve our vision through technologies that allow peer-to-peer trading and settlement within new markets, and with digital assets whose values track real-world risk factors that currently have no suitable expression in legacy markets.

No matter the nature of a risk factor, whether macro-economic or climactic, our mission is to make important risk factors tradable; by anyone, anywhere, without reliance on financial intermediaries. We are building this new infrastructure in collaboration with incredible trading and blockchain communities.

Clearmatics was founded in 2015, and we have ever since been committed advocates of Open Source development, and active participants in the blockchain and cryptography research communities. We’ve also been an active participant and supporter of decentralized infrastructure initiatives.

We’re looking to hire a Smart Contract Engineer to expand our Layer 1 Engineering team.

Our stack is Ethereum-like, so familiarity with – and passion for – the space is key.

Some of the areas we tackle include blockchain infrastructure optimised for financial use-cases, protocols for specific applications (such as smart contract-based derivatives, synthetic assets, cryptocurrency stabilization, …), scalability and privacy through cryptography (zkSNARKs, multiparty computation, private transactions/assets).

Currently the Clearmatics team is heavily involved as the Launch Partner for the Autonity Project. Autonity is an EVM based public blockchain for decentralised derivatives clearing. You can learn more about the Autonity project and its ongoing testnet games through the links below.

Responsibilities

You will develop and maintain decentralised financial smart contracts on Autonity that will enable the creation of decentralised risk markets in real-world risk factors.

This will involve working on a wide range of problems including smart derivatives, DEX trading & settlement protocols, algorithmic stabilisation, data oracles, liquid staking, and more.

Working alongside quantitative researchers and protocol engineers, you will transform research models and prototypes into production-grade Solidity code. You will also collaborate with Autonity core developers on enhancing L1 protocol contracts and integrating new functionality into the Autonity Go Client.

Requirements

  • 4+ years professional experience in software engineering
  • 2+ years smart contract programming experience in Solidity
  • Bachelor’s degree in Computer Science or a related technical field
  • Strong knowledge of Eth1 protocols and proof of stake consensus
  • An understanding of the DeFi landscape and major DeFi primitives
  • Proficiency in Python programming and web3.py Ethereum development
  • Experience interfacing with data oracles and P2P data stores (e.g. IPFS)
  • Experience working with third party smart contract auditors
  • Contributed code to open-source projects in the Web3 space

Bonus points

  • Experience designing, researching, or implementing Web3 protocols
  • Proficiency with the Python scientific computing stack (NumPy, Pandas, Jupyter)

Our compensation is blockchain competitive and dependent on your skills & experience.

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