As stewards of the Polkadot and Substrate ecosystem, Parity is laying the foundation for a better web that respects the freedom and data of individuals and empowers developers to create better services through decentralised technology. The internet is too important to billions of people for it to be at the mercy of a few powerful companies.

With a remote-first, global team, Parity is building open-source technologies for developers and organisations to implement and build upon. Our Web3 tech stack includes Polkadot, Substrate, and Kusama.

We believe in a decentralised web that respects the freedom and data of individuals and empowers developers to create better services. Our vision is to create a world based on truthful, rather than trustful, interactions. Our mission is to make Polkadot the most active and innovative community in blockchain.

About the Team

The role is part of the Smart Contracts team which is responsible for supporting the execution of smart contracts on Polkadot. This ranges from low level software like PolkaVM and revive to our smart contract execution environment.

About the Position

We are looking for new Software Engineers to join the team, specifically for work on PolkaVM and the revive recompiler. You will...

• Work on a state-of-the-art RISC-V based virtual machine and an LLVM-based EVM to RISC-V recompiler
• Create comprehensive benchmark suites to track and improve performance against competing technologies
• Integrate those technologies into our smart contract execution environment

About You

• You have experience or are excited to learn about things such as...
• Virtual machines, RISC-V, AMD64 assembly, dynamic recompilation, bytecode interpreters, compilers (in particular code optimization and machine code generation), low level memory management, low level operating system interfaces (Linux in particular), security sandboxing, performance engineering, zero knowledge proof systems in general and zero knowledge virtual machines in particular
• You work autonomously and solve problems independently
• You work well in a collaborative, open-source culture and environment
• You take ownership of your work and actively see it through to the end, gathering and incorporating feedback as you progress
• You have good communication skills and you can present your work in “plain English”, not only to your colleagues, but also in blog posts or at conferences

About Working for Us

• Competitive remuneration packages based on iterative market research, including tokens (where legally possible)
• “Future of work” environment that’s remote-first and self-initiating with flexible hours
• Team mates that are genuinely excited about their impact and projects
• Access to the brightest minds in this space to learn about Web3 and develop your skills and knowledge while on the job
• Becoming part of the wider ecosystem (career and networking opportunities)
• Team and company-wide retreats
• Work laptop

Those joining our collective as an employee in Germany, Portugal, and the UK, also enjoy benefits such as healthcare, parental leave, PTO (28 days per year) and local team events.

Parity is an Equal Opportunity Employer. We welcome diversity in our global team and care about everyone in our collective feeling included and welcome.

View our Applicant Notice to see how we use your data.

Is this position not quite your match? Browse our other open roles.

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About us:

We’re a forward-thinking team of seasoned professionals committed to pioneering development of the next generation of Web3 infrastructure and tooling products.

With a strategic blend of expertise in cryptography, blockchain, fintech, telecommunications and cybersecurity - we are committed to driving the innovation and setting new standards in the vibrant Web3 space.

We’re a globally distributed team of 60+ dedicated members coming from diverse cultures and backgrounds, united by a shared purpose and mission of shaping the world as a slightly more autonomous, gentler place.

What we do:

We’re the team behind Presto, robust platform for seamless deployment and management of zkEVM and optimistic rollups, abstracting away complexity for sustainable mainstream blockchain adoption. In addition, our reliable Stakeway infrastructure and deep expertise - secures $1B of digital assets, helping unlock non-custodial staking opportunities to institutional players.

Join us on our mission!

We’re seeking a passionate Research Engineer to join our Incubator team and help drive bleeding edge blockchain innovation. As a Research Engineer, you will play a pivotal role of an R&D generalist, taking ownership of various research, development, and deployment initiatives.

Roles and Responsibilities:

• Deep understanding blockchain technology, covering areas like (but not limited to): consensus mechanisms, Ethereum execution layer client improvements, etc.
• Design, develop, and deploy experimental proof of concept architecture for applications and solutions, with a particular focus on scaling technologies and complex integrations
• Execute end-to-end smart contract and infrastructure-related functionality deployments, including configuration of CI/CD pipelines and management of Docker components
• Read, interact with, and efficiently streamline open source code interactions
• Stay on top of innovation trends and produce feasible technical roadmaps in close cross-sectoral collaboration with engineering and product departments

Requirements and needed skills:

• Mandatory deep understanding of cryptography, consensus algorithms, blockchain infrastructure, smart contracts.
• Demonstrated expertise and interest in zero-knowledge and/or scaling technologies like Polygon, Optimism, Arbitrum, etc.
• Extensive experience and proficiency with Golang, Python, and Django
• Experience with Git, CI/CD pipelines, Helm, and automated testing frameworks
• Ability to efficiently analyze and interpret complex code
• Strongly resonating engineering curiosity and passion for experimentation
• Proven ability to concurrently manage multiple projects and diligently produce deliverables
• Excellent verbal and written communication skills, with the ability to transfer knowledge in a seamless and engaging manner

Nice to have:

• Active involvement and contributions to open-source developer communities
• Experience developing and optimizing fundamental blockchain infrastructure
• Experience with and/or interest in DevSecOps
• Experience working in fast-paced, remote-first startup environments
• Demonstrated passion for research and education

What we offer:

• Competitive salary and performance-based bonus structure
• High degree of autonomy and opportunity for long-term career growth.
• Close collaboration with the teams working on fundamental research and cutting-edge innovation products in Ethereum scaling and broader blockchain technology
• Fully remote and flexible working hours

About us

We’re a forward-thinking team of seasoned professionals committed to pioneering the development of the next generation of Web3 infrastructure and tooling products.

With a strategic blend of expertise in cryptography, blockchain, fintech, telecommunications and cybersecurity - we’re commited to driving the innovation and setting new standards in the vibrant Web3 space.

We’re a globally distributed team of 60+ dedicated members coming from diverse cultures and backgrounds, united by a shared purpose and mission of shaping the world as a slightly more autonomous, gentler place.

What we do

We’re the team behind Presto, a robust platform for seamless deployment and management of zkEVM and optimistic rollups, abstracting away complexity for sustainable mainstream blockchain adoption. In addition, our reliable Stakeway infrastructure and deep expertise - secures $1B of digital assets, helping unlock non-custodial staking opportunities for institutional players.

Join us on our mission!

We’re seeking a battle-tested Senior Blockchain Client Developer to join our R&D team and help tackle some of the most unique, complex challenges at the fundamental level of blockchain technology.

Roles & Responsibilities

• Drive the development and continuous optimization of the custom fork of the Erigon client node.
• Maintain and improve our codebase, actively participating in code writing and reviews to ensure high performance and reliability of the Erigon client node.
• Contribute to the overall software architecture of our solutions.
• Stay updated with, and prudently experiment with zero-knowledge innovation and other scaling technologies
• Analyze partner networks’ performances, identify pain points and areas of improvement, and implement solutions to increase network throughput and decrease network latency.
• Provide mentorship to junior developers and participate in the hiring process as per the team’s needs.
• Communicate with our partners and clients to understand and adequately address their needs, collaborating with a globally distributed team of experienced engineers on delivering feasible long-term technical roadmaps

Requirements and needed skills

• Extensive experience and proficiency with Golang
• Mandatory deep understanding of cryptography, data structures, algorithms and consensus algorithms, blockchain protocols, and distributed systems
• Proficiency with Ethereum clients such as Erigon and Reth
• Demonstrated expertise and interest in zero-knowledge and scaling technologies
• Experience with Git, CI/CD pipelines, and automated testing
• Strong background in managing and maintaining various crypto nodes
• Experience in working with EVM (Ethereum Virtual Machine) and Go Ethereum (Geth)
• Strongly resonating engineering curiosity and researcher mindset
• Experience in leading development teams and concurrent management of multiple projects
• Excellent verbal and written communication skills, with the ability to transfer knowledge in a seemless and engaging manner

Nice to have

• Active involvement and contributions to open-source developer communities
• Experience developing and optimizing clients and fundamental blockchain infrastructure
• Experience working in fast-paced, remote-first startup environments
• Demonstrated passion for mentorship and education of wider audience

What we offer

• Competitive salary and performance-based bonus structure
• High degree of autonomy and opportunity for long-term career growth.
• Close collaboration with the teams working on fundamental research and cutting-edge innovation products in Ethereum scaling and broader blockchain technology
• Fully remote and flexible working hours

Apply Now:

About the Role

As Senior Developer Relations Engineer, your mission is to build a thriving developer ecosystem around Boundless. You’ll lead the creation and maintenance of comprehensive, high-quality documentation and educational resources to empower developers and drive engagement of Boundless.

In this role, you’ll develop technical documentation, tutorials, guides, and code samples, ensuring developers have everything they need to integrate and utilize Boundless effectively. You’ll also provide hands-on mentorship, helping developers overcome challenges and maximize the potential of the ZK Stack. Additionally, you’ll serve as a key face of Boundless within our ecosystem, engaging across platforms like Twitter, Discord, conferences, and meetups to foster a vibrant and collaborative community.

Key Responsibilities

• Drive Boundless documentation and top-tier educational content.

• Expand the Boundless community by actively connecting with developers to support the success of their projects.

• Develop and upkeep comprehensive technical documentation, guides, prototypes, and example code to facilitate developers’ engagement with our products and APIs.

• Offer developers expert technical support and mentorship, helping them navigate obstacles and fully leverage the ZK Stack.

• Interact with developers across platforms, including Twitter, Discord, messaging apps, conferences, and developer meetups.

Top Initiatives You’ll Own  (over the first 3-6 months)

• 1-3 months: Learn the inner-workings of and contribute to Boundless and dependent technologies.

• 3-6 months: Support the successful launch of Boundless via by leading the development of a world-class devex, docs and other educational materials.

Minimum Qualifications

• Solid foundation in software engineering, particularly in building developer tools and/or blockchain applications.

• Proficiency in Solidity and EVM development; Experience with Rust or other compiled languages.

• Proven track record in creating technical content, such as blog posts, tutorials, and documentation.

• Strong open source experience and working knowledge of GitHub.

• Clear communication of technical concepts, both in writing and in presentations, with ease in presenting at conferences and other public forums.

Ideal Candidate Qualities:

• 🔒 Authenticity: Demonstrates ethical leadership, honesty, and transparency in all interactions.

• 💖 Empathy: Shows understanding and concern for the well-being of team members, demonstrating a humane orientation to leadership.

• 🌟 Resilience: Demonstrates positivity and resilience in the face of challenges, providing inspiration and motivation to the team.

• 🌱 Growth Mindset: Encourages continuous learning and personal development within the team, focusing on the human dynamic and the unique needs and strengths of all stakeholders.

• 🎯 Strategic Thinking: Exhibits the ability to think strategically and act decisively, balancing immediate needs with long-term goals.

• 🌍 Inclusive Leadership: Champions diversity and inclusion, promoting equitable opportunities and treatment for all team members.

• 🤝 Collaborative: Excels at breaking down silos and creating a "one team, one roadmap" culture. Has a strong ability to facilitate productive relationships across teams.

• 👷🏾‍♀️ Builder: You’re a Creator and a Doer, you get the vision, create the strategy, and take ownership of building it

What We Offer

• Salary: Competitive range of $204,600 - 247,500

• 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 United Health Care Choice Plus (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:

Who we are

Vac builds public good protocols for the decentralised web.

We do applied research based on which we build protocols, libraries and publications.

This role is within the Vac ACZ (Applied Cryptography & ZK) unit, which supports various Logos projects.

The role

We are seeking a skilled network engineer to implement and enhance our network components, with a strong emphasis on peer-to-peer (P2P) protocols and robust security measures.

You will analyse technical specifications to grasp requirements and constraints, offering constructive feedback to improve clarity and effectiveness.

Key responsibilities

• Implement network components with a focus on P2P protocols.
• Implement components beyond the network scope.
• Ensure network security and privacy measures are effectively integrated.
• Analyse technical specifications to understand requirements and constraints.
• Provide constructive feedback on specifications to enhance clarity and effectiveness.
• Deconstruct complex network issues to identify root causes.
• Prioritise problems and determine which can be deferred for future resolution.
• Monitor network performance metrics to assess component efficiency.
• Conduct troubleshooting and debugging to resolve issues promptly.
• Review pull requests from team members for quality and adherence to standards.
• Provide actionable feedback to foster team development and improve code quality.

You ideally will have

• Very strong engineering background
• Very strong Rust skills and willingness to learn and work with Nim
• Keen communicator
• Experience with implementing network components
• Experience in, and passion for, blockchain technology
• A strong alignment to our principles

Bonus points if

• Experience with Nim
• Experience with Solidity
• Experience in implementing components of zero-knowledge argument systems and related technologies (zk-SNARK, circom, Nova, Plonk/Halo2, zk-STARK)
• Understanding of zero-knowledge argument systems and related technologies (zk-SNARK, circom, Nova, Plonk/Halo2, zk-STARK), elliptic curve cryptography, and circuit design
• Experience with Open Source software

[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

The hiring process for this role will be:

1. Interview with our POps team
2. Interview with team member from the Vac team
3. Pair programming task with the Vac team
4. Interview with Vac team 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 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.

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.

The project:

Nomos is a sovereign, modular, zk-encrypted network of blockchains. The trustless agreements layer of the Logos stack. The forthcoming Nomos network will provide a common infrastructure layer upon which communities and aspiring network states can build social, governance, and financial services that uphold their community members’ fundamental rights and values.

Key Responsibilities:

As an Engineer, you will contribute by implementing the design as specified by the Nomos research team. In addition, you will contribute to the design of new protocol solutions. You will design, specify and build distributed systems. You will build proof of concepts to explore implementation solutions, as well as develop production-ready code and optimizations.

It’s expected that you understand papers well enough to be able to take all necessary steps for their evaluation, adaptation and implementation. The project will expose you to the newest ideas and allow you to stay up-to-date with what is emerging in the space (blockchain, p2p networks, distributed systems, cryptography, Zero-Knowledge proofs, MPC, etc.). You might conduct preliminary theoretical and practical analysis of the performance of the systems and present the results.

Ideally, you will have:

• Coding experience in Rust - this is a MUST-have requirement for this role!
• Experience in complex Distributed Systems in production, preferably in byzantine settings (blockchain) or similar. Alternatively, experience in cloud computing systems, especially if developed at the systems level and complemented with advanced Rust knowledge.
• Strong background in Computer Science and Math, or a related area.
• Keen communicator, eager to share your work in a wide variety of contexts, like internal and public presentations.
• Strong interest in privacy, censorship-resistant technology, open protocols.

Bonus points:

• Research experience in Distributed Systems, ideally byzantine settings.
• Experience working for an open-source organization.
• Knowledge of cryptography.
• PhD in Computer Science, Mathematics, or a related area.
• Solid knowledge of mathematics (we employ probability and statistics often).

Hiring process:

• Interview with our People Ops team
• Interview with team member
• Interview with team member
• Interview with interview with Nomos Lead

Compensation:

We are happy to pay in any mix of fiat/crypto.

About Aztec At Aztec, our goal is to add privacy to Ethereum. In the current public blockchain paradigm, users and entities unknowingly broadcast data in the public, compromising privacy and security to get trustlessness. Not only are unencrypted blockchains inherently privacy-exposing, they require significant redundancy to compute and verify the legitimacy of transactions. Implementing scalable encryption in a public blockchain paradigm requires cutting-edge math and engineering. Thankfully, our team of scientists and engineers invented Plonk, the industry-standard zkSNARK, and Noir, the universal language of zero knowledge. Now, we’re building a first of its kind Layer 2 with private smart contracts. This requires new cryptographic primitives, a zero-knowledge DSL for writing contracts, a privacy-friendly execution environment, a carefully designed set of circuits that prove the validity of the chain to L1, a decentralized block-building and proving mechanism, and a top-tier user and developer experience. And it’s now time to bring it to market. We’ve raised $125 million from industry-leading investors including a16z crypto, Paradigm, Variant, Consensys, and a_capital, and we’re growing quickly.The Role: As someone that will help maintain a health network of infrastructure providers, you will be an integral part of the long-term success of the Aztec network. You will have a diverse range of responsibilities and will engage with some of the fastest growing start-ups in the crypto space (e.g. prover networks) as well as a diverse set of infrastructure providers, ranging from home stakers to professional, custodial staking operations. There will be a blend of technical expertise, for supporting operators, and community development and management, for growing and maintaining a healthy community. Responsibilities: 

Help maintain Aztec network livenes and security by nurturing a healthy, welcome community of infrastructure providers Evaluate the community of infrastructure providers and consider strategies for improvement (e.g. node count, diversity, security, social engagement, etc)   Share critical updates with the sequencer and prover network communities Educate the community on the governance process and facilitate network upgrades Troubleshoot issues with community members running sequencer and prover software  Create resources (e.g. documentation and videos) showing how to run Aztec network infrastructure Collecting data and running experiments. Someone who can always be talking to node operators to get answers to questions relevant to the product.  

Qualifications: (Example)

3+ years experience in open-source community engagement and management Strong knowledge of running blockchain infrastructure, ranging from small home to large scale cloud operations Knowledge of peer-to-peer decentralized networking and monitoring tools Familiarity with Docker, cloud computing services (e.g. AWS) Experience coordinating communities operating peer-to-peer networks Able to provide clear and constructive feedback on less senior engineers’ PR’s, mentoring where necessary Ethereum infrastructure experience a bonus

Nice-to-have experience: (Example)

Located in the UK or Eastern US or can operate in Greenwich Mean Time Zone Familiarity with current Ethereum operations and tooling (for inspiration) Passion for the web3 space Familiarity with other private blockchain technologies like ZCash

What we offer:

A highly competitive compensation package (including equity) Flexible and remote work environment 25 days holiday + bank holidays annually An opportunity to work at the cutting edge of blockchain with a world class cryptography and engineering team

Aztec Labs is an equal opportunity employer and we value creativity, diversity, and intellectual curiosity. If you're passionate about leveraging your creative talents to make a real-world impact, and if you want to be part of a team that's shaping the future of digital privacy, then we would love to hear from you.

Apply Now: