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About the Company

Libre is focused on the design and development of a blockchain-based protocol to eliminate inefficiencies in legal, financial and operational workflows for private markets. Going beyond the simple concept of tokenisation and enabling seamless access to private markets directly on-chain, regardless of the end-user platform and/or public network where the user is based

Libre’s product focus is to tokenise the funds on a blockchain infrastructure and enable future composability of the digital security assets with other institutional on-chain services e.g., collateralised lending and secondary trading.

About the role:

We are looking for an experienced Solidity Developer to join our team, working on cutting-edge projects. You will play a key role in designing, developing, and maintaining blockchain-based solutions that ensure stability, security, and scalability for our real-world asset tokenisation ecosystem. This is an exciting opportunity to work at the forefront of blockchain and financial technology, contributing to the future of tokenised assets.

What you are good at:

• Writing and reviewing high assurance code, tests, invariants and other deliverables for our protocol projects using industry best-practices
• Designing, implementing, and deploying secure and efficient Solidity-based smart contracts for Libre’s protocol
• Emphasis on robust process, continuous learning and ownership including collaborating with external audit firms as needed
• Contributing and evolving our internal methodologies, coding standards, review methods and other standard operating procedures
• Troubleshooting and optimizing smart contracts while staying current with blockchain trends and advancements
• Contributing to our cross-chain capabilities by building robust integrations and maintaining multichain compatibility
• Closely collaborating with members across various teams
• Staying updated on the latest developments in blockchain technology, DeFi protocols, and trends in digital asset management

What you bring:

• 3+ years of experience in solidity development, with a proven track record of deployed contracts on mainnet
• Strong knowledge of EVM
• Extensive experience in developing complex smart contracts. Familiar with tooling such as Foundry, Hardhat or Remix
• Understanding of the DeFi landscape, such as lending protocols, AMMs, Perps and stablecoins
• Ability to effectively communicate, collaborate and connect with clients, partners and other third parties
• Excellent problem-solving skills, attention to detail, and the ability to work collaboratively in a team environment

Bonus Qualifications

• Experience with multichain environments and integrating across diverse blockchain ecosystems
• Knowledge and experience with real-world assets (RWAs)
• Public GitHub contributions to high-quality projects in the Ethereum or broader Web3 space
• Experience in developing off-chain applications that integrate with web3 protocols, using libraries such as Web3.js and ethers.js
• Knowledge in Traditional Finance, and the intersection between traditional finance and blockchain, such as Tokenisation

What we offer:

• Competitive salary and benefits package
• Opportunity to work on challenging and impactful projects
• Collaborative and supportive work environment
• Opportunities for professional growth and development

Overview

• Our tech stack
  • Infrastructure: Docker, Kubernetes, AWS
  • Protocol: Go (Cosmos SDK, go-ethereum, btcsuite, Tendermint Core)
  • Smart contracts: Solidity, Rust, Hardhat
  • Frontend: Typescript, Next.js, Redux toolkit, Ethers.js, tRPC, GraphQL
  • Others: Yarn3 monorepo, Vercel, GitHub actions
• Location
  • Remote
• What you’ll do
  • Get paid to write open-source software (probably what you always wanted)
  • Work with Typescript and Solidity
  • Work on new products that bring our omnichain technology to end-users
  • Work on data-heavy, high-traffic (millions of unique users during the last month) backends

Your skills and experience

• Base experience
  • +3 years working as a software engineer
  • Full-stack engineering experience with focus on the backend and smart contracts
  • Experience working on blockchain products
• Bonuses
  • A balanced experience between working at startups and big tech companies
  • Experience building products from scratch

Job Description

Job Title: Software Engineer (Developer Experience)

Location: Remote, or offices in NY/SF

Company: ZetaChain

About ZetaChain

ZetaChain aims to be the only blockchain you’ll ever need. It is a layer 1 blockchain and developer platform that connects any L1 and L2, from Ethereum to Bitcoin and beyond. Access all of crypto in one place, as a developer or user.

ZetaChain prides itself on its vibrant and active community, a testament to our growing impact and relevance in the blockchain space:

• Thriving Ecosystem: Over 150+ dApps developed, showcasing diverse innovation and utilization.
• Engagement: With over 1M+ followers on Twitter and an equally active Discord community of 1.2M+ members, ZetaChain fosters a dynamic environment for engagement and collaboration.
• Activity: Our mainnet has seen over 8K+ smart contracts deployed and processed over 137M+ transactions among 3.5M unique wallet addresses

Find out more about our ecosystem.

Find out more about our hiring culture: Dream Team Culture.

About the Role

ZetaChain is seeking a software engineer with experience in TypeScript and smart contract development to join our team. You will be instrumental in developing open-source tools and libraries that enhance the developer experience on the ZetaChain platform, and you’ll be working directly with exciting components of our tech stack.

Overview

• Our tech stack
  • Protocol: Go (Cosmos SDK, Comet BFT, Ethermint)
  • Infrastructure: Docker, Kubernetes, AWS, GitHub, Vercel
  • Smart contracts: Solidity (EVM), Rust (Solana), FunC (TON)
  • Frontend: TypeScript, Next.js, Ethers.js, GraphQL, protobuf
• What you’ll do
  • Add new features to the Toolkit, our library of TypeScript functions that interact with ZetaChain
  • Improve Localnet, ZetaChain’s local development environment, to ensure seamless developer experiences
  • Maintain and expand UniversalKit, our component library
  • Extend and enhance example contracts with new features and support for additional connected chains
  • Participate in dev rel initiatives to foster community growth and engagement with the ZetaChain ecosystem
  • Get paid to write open-source software and public docs (probably what you always wanted)
  • Work on providing the best developer experience for people building on top of ZetaChain
  • Work on products that bring our core interoperability blockchain technology to end-users

Your skills and experience

• Base experience
  • 4+ years of experience in software engineering, with a strong background in TypeScript
  • Experience in at least one smart contract language. Solidity is important, but we also work with Rust, FunC, and other languages in the future.
  • Proficiency with TypeScript development tools and libraries, including Next.js, Ethers.js, and GraphQL
  • Experience with smart contract development tooling, like Hardhat
• Bonuses
  • A balanced experience between working at startups and big tech companies
  • Experience with EVM or Cosmos blockchains
  • A track record of contributing to or managing open-source projects

Apply Now:

Apply Now:

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.

Are you the one?

We are looking for a passionate and skilled engineer to join our highly dynamic team.

You will be developing blockchain-based solutions that span across a wide spectrum of the web3 ecosystem, from protocol level engineering and smart contracts development to dapps and Enterprise/Financial applications that integrate with or are built on blockchain infrastructure.

This is a remote-first role. You will be working with a globally distributed team of talented engineers and researchers, as well as many leading industry partners.

You should be proficient in at least one or more general programming languages (refer to the skills section for details), as well as Smart Contract development, primarily Solidity. A deep understanding of the Ethereum blockchain, strong general engineering skills, and a firm grasp of computer science fundamentals are required. The ideal candidate would be a robust problem-solver with excellent attention to detail and effective communication skills. Familiarity with non-EVM blockchains, zk proofs, the DeFi landscape, and traditional finance would be advantageous.

Responsibilities include, but not limited to:

• Work on full-stack engineering solutions that integrate with or built on top of blockchains.
• Design and build applications on various blockchains
• Develop, test, and deploy secure smart contracts
• Debug and optimize smart contracts
• Extract and process data from the blockchain
• Develop scripts & tools to automate or improve blockchain interactions
• Collaborate with other engineers and teams, both internally and externally
• Stay updated with new developments and technology in the blockchain space

Technical Skills:

• Excellent programming skills in one or more of the following programming languages: C#, Go, TS/JS, Solidity, Rust, Python, Java, Kotlin, but will also consider other tech stacks.
• Proficient in a smart contract programming language (eg. Solidity, Cairo, MOVE) with extensive experience in developing complex smart contracts. Familiar with toolings such as Foundry, Hardhat or Remix.
• Ability to implement efficient algorithms and design complex data structures
• Understanding of good software architecture and engineering process
• Ability to write clean, testable, and maintainable code without over-engineering
• Deep understanding of Ethereum blockchain architecture
• Understanding of the DeFi landscape, such as lending protocols, AMMs, Perps and stablecoins
• Experience in developing off-chain applications that integrate with web3 protocols, using libraries such as Web3.js and ethers.js.
• Strong computer science background

Other Competencies:

• You need to be a self-starter, with the curiosity and drive to continuously improve.
• Excellent problem-solving and analytical skills, with attention to detail
• Strong written and verbal communication and collaboration skills
• Proficiency in English

Nice to have:

• Knowledge in Traditional Finance, and the intersection between traditional finance and blockchain, such as Tokenization.
• Experience with layer-2 solutions like Starknet, Optimism, zkSync, and Arbitrum
• Familiarity with blockchain data analytics tools like Dune and Nansen
• Knowledge of cryptographic primitives like hashing and signature schemes
• Familiarity with zk proof systems (ZK-STARK, ZK-SNARKs)
• Familiarity with formal verification methods for smart contracts
• Experience in front-end development with frameworks like React or Angular
• Familiarity with smart contracts auditing tooling/techniques (e.g Fuzzing, Symbolic execution, Static and Dynamic Analysis)
• Infrastructure / DevOps experience (eg. setup private networks)
• Ethereum core development experience

Perks and Benefits

• Professional Growth: Continuous learning opportunities and the chance to work with industry leaders.
• Fully Remote: Work from anywhere in the world.
• Flexible Working Hours: Manage your own schedule to balance work and life effectively.
• Competitive Compensation: Attractive salary plus equity options.

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

• Discord
• LinkedIn
• Twitter

About us:

Avara builds innovative products leveraging blockchain technologies. Avara’s suite includes the Aave Protocol, along with the native stablecoin GHO, Lens, an open social network, and Family, a design-first mobile crypto wallet. Avara’s vision is to build a people-powered internet that benefits all.

Our culture:

Having cultivated a thriving, collaborative culture, our team is kind, welcoming and passionate about what we are building. We celebrate differences and seek to develop and retain the most talented people from a diverse candidate pool from all over the world. No matter where you are based, no ghost will be left behind and we appreciate every moment we get to work and have fun together.

About the role:

As a Smart Contract Security Researcher at Avara, you will play a critical role in enhancing the security and robustness of our smart contracts across our ecosystem, including Aave, GHO, and Lens. This role focuses on internal audits, vulnerability research, and developing innovative approaches to secure our protocols. Your work will directly impact the safety and trust of our products within the Web3 space.

How you can make an impact:

• Conduct thorough security audits and reviews of Avara’s internal smart contracts and protocols, identifying vulnerabilities and proposing fixes
• Perform in-depth research to enhance the security of blockchain systems, protocols, and infrastructure within our ecosystem
• Implement and evaluate formal verification techniques to ensure the correctness and safety of smart contracts
• Develop tools and frameworks to enhance the security of smart contracts and the broader ecosystem
• Develop strategies and proposals to improve the readability, usability, and security of codebases by introducing best practices
• Conduct exploratory research into emerging blockchain technologies and cryptographic protocols to preempt potential threats
• Work collaboratively with internal teams to implement and document secure coding practices
• Proactively identify trends and new vectors in blockchain security to protect our systems against new and future threats

Let’s connect if:

• Proficiency in Solidity and experience with public Ethereum or EVM-based blockchains
• Strong experience with smart contract development tools such as Foundry, Hardhat, or similar frameworks
• Experience with fuzz testing, static analysis tools, or other security-focused tooling
• Strong analytical and problem-solving skills with attention to detail
• Ability to work independently, take initiative, and deliver results with minimal supervision
• Passion for blockchain technology and the principles of decentralisation
• Previous experience performing code reviews and vulnerability assessments within web3
• Participated in web3 security competitions and audits
• Discovered vulnerabilities or bugs in any web3 projects

Haven’t quite met all the criteria? Let’s not miss out on the chance to speak. Whilst you might not meet every single requirement, you might bring other, more exciting skills to the companies!

Equal opportunity statement:

Avara celebrates diversity and view each and every team member as a separate individual with their own unique identity. No matter your race, religion, gender, ethnicity, age, (dis)ability, sexual orientation or even the wallet you use, we welcome you at Avara.

As an equal opportunities employer, we take accountability and believe in everyone’s potential to build, create and inspire changes. With a mission to build a diverse workforce, we are proud to foster a working environment in which everyone can feel safe and valued for who they are.

About Outlier Ventures

Outlier Ventures is the leading Web3 accelerator in the world. Founded in 2014, it works with startups at various stages of their lifecycle from pre-seed/seed (via Base Camp) to later stage about to launch or live token networks that specialize in a new data economy, infrastructure, DeFi, and bringing together a network of 1,000+ of the world’s leading Web3 founders, protocols, VCs to mentor and invest in startups.

At Outlier Ventures, we value curiosity of mind and an agile, entrepreneurial mindset.

We value all people, regardless of their gender, age, disabilities, race, ethnic origin, pregnancy or maternity status, religious beliefs, political beliefs, marital status or sexual orientation. We encourage applicants from all backgrounds and are committed to promoting equality at every opportunity, both as partners, providers of services, and employers.

About The Role

Outlier Ventures is seeking a Head of Engineering to help source the best Web3 technologies and AI to use them with portfolio companies and within OV itself.

The Head of Engineering plays a strategic role in developing the technical direction starting from the CTO guidelines. You help portfolio companies and Outlier Ventures itself to find the best trade-offs by mixing Web2 tech with Web3 and AI tech stack in the most seamless way.

The Web3 ecosystem landscape is constantly changing, and because of that, looking, selecting, and staying updated with Web3 technologies plays a primary role. It offers an excellent opportunity to use your experience and practical approach to filter the noise from the signal.

You work with the rest of the Product & Engineering team to deliver first-class product and engineering advisory to the co-founders, CTOs, and engineers of the portfolio companies to bring new paradigms to life as they build viable businesses. We are here to ensure they can deploy the best, most scalable, and secure architectures possible.

Having strong communication and interpersonal skills is crucial to fostering collaboration between all the internal and external stakeholders (e.g. Startups, Investment Team, Accelerator Team, etc. )

Plus, because we are an accelerator, you will be involved in the admission process of startups. This is a fantastic opportunity to be part of the selection process that shapes the subsequent batches of founders. Practically, you will run solo or with other colleagues through tech due-diligence sessions where you learn and challenge applicants’ architectures, approaches, and business models.

We are looking for technical builders who love the Web3 movement, startups, and the growing AI industry.

The role is fully remote; if you are based in London, you are more than welcome to work in our London-based office.

Successful candidates will need to work London office hours (-+3 hours Timezone).

Your Key Responsibilities:

• In advisory capacity, run workshops about product roadmap best-practice and architectures in line with the startup’s long-term business outcomes.
• Help OV to build and execute on viable product roadmaps for leveraging technology, particularly AI, in its daily activity and create tools to empower the in house employees and expert teams.
• Being the line manager of the Product Engineers in the team and contribute to the growth of the Engineering practice by hiring, coaching, and mentoring.
• In advisory capacity, with the startups, identify technical blockers and come back with actionable alternatives considering the impact from an engineering and business perspective.
• Run architecture and code review sessions.

We are looking for someone who:

• Has a deep exposure to Web3 technologies and has built something hands-on (Solidity, Hardhat, EtherJs, etc.).
• Has been exposed to the hectic startup life either as a founder/employee/investor.
• Has 5 years experience in blockchain engineering roles.
• Knows distributed system architecture (e.g., Microservices, CQRS, Saga, Sharding, etc.).
• Is fluent in one or more general-purpose languages (e.g., TypeScript, Python, Go, Rust, Java).
• Is familiar with Domain Modelling, DevOps principles, containers, Testing, Continuous Integration, and Deploy.
• Understands the markers of a quality codebase (design patterns, testing, documentation, commit activity, CI/CD).
• Has strong interpersonal skills: ability to advise on technical direction and explain technical concepts to non-technical audiences.

Nice to have:

• Fundamentals of Solidity.
• Viem and/or Ether.js and/or Web3.js.
• React or any modern web framework.
• Software security training, particularly smart contract security.
• Knowledge of Machine learning and exposure to new LLM paradigms.

What we offer:

• The package is subject to relevant experience.
• Private medical insurance.
• Discretionary bonus scheme.
• 25 days of holiday per year (plus bank holidays).
• Cycle-to-work scheme.