As our front-end developer, you will be responsible for building the ‘client-side’ of our web applications. You should be able to translate our company and user needs into functional and appealing interactive applications that meet high development standards. In this role, you will work closely with a group of talented product managers, UX designers, and other engineers to build the next generation of staking products. Your work will help with securing a wide range of blockchain networks and contribute to the bedrock of decentralization.

What will you do?

• Implement responsive UIs and web apps that work on desktop, mobile, and other popular devices
• Translate design prototypes to working code that are performant and cross-browser compatible
• Build great products that are beautiful, simple, and delightful
• Integrate front end apps with various crypto wallets
• Continuously iterate and improve using direct user feedbacks and best industry practices
• Proactively make suggestions for improving our products and internal processes

What are the requirements?

• You are a top-notch front end developer, with a passion for blockchain
• You have extensive experience with front-end design and client-side web applications
• You possess a track record of launching great products
• You have good taste in design and UX. An obsession with quality and attention to the little things
• You have a strong understanding of JavaScript fundamentals, modern tooling, and ecosystem
• You are familiar with React

What will be great to have?

• You are familiar with common web3 libraries such as ethers.js or web3.js
• You are passionate about blockchain technology and a decentralized future
• You are contributing to the open-source community
• You feel comfortable working in a startup environment

Why are we awesome you ask?

We are truly at the forefront of the crypto ecosystem as maintainers of the infrastructure layer of blockchain networks! We practice the crypto team mentality by assembling a truly global and diverse team.

We collectively represent more than 12 different countries and are united in a single mission: building out the future of decentralization. Crypto is here to stay, having introduced novel ideas such as DeFi, NFTs and DAOs. At the core of all this are teams like us working relentlessly to build the necessary tools and applications that help run and secure blockchains.

Here are some other reasons you should join us:

• We have employees from over 10 countries across the globe, and you will be able to meet interesting people from different backgrounds and cultures. Distributed and remote work is baked into our culture.
• We are one of the top staking service providers with over $3B of assets staked across our validators. We actively explore and develop new products related to staking. You will work on high-impact engineering projects building exciting new products in a startup environment.
• We have a capable and passionate team. You will find teammates who are power DeFi users, intense NFT collectors, Bitcoin & Ethereum knowledge nerds, etc. You can learn and debate everything on crypto with our teammates.
• We are not backed by VC funding, and we are already profitable. Our financial independence means that we can make decisions independent of VCs, and we prioritize our ideals of decentralization, user sovereignty, and user privacy over simply making a profit. It also means that, unlike most other startups, stakefish can provide you with a stable low-risk employment opportunity without fundraising concerns.

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About Symbiotic

At Symbiotic, we are building a permissionless shared security primitive that empowers network builders to shape and personalise their unique restaking implementation. Our goal is to minimise risks while maximising freedom for all you wonderful builders of crypto infrastructure networks. We have a robust developer-centric proposition and we can’t wait to share it with everyone.

You can find more information about what we’re building and how we’re doing it in our docs.

Our People

We’re a tight-knit team of experienced individuals at the forefront of crypto infrastructure. Our backgrounds range from security auditing and smart contract development to node operation, and we’re supported by Paradigm and CyberFund.

We’re on the hunt for talented professionals to join our mission and strengthen our awesome team.

The Role

We are seeking a Senior Smart Contract Engineer to work on our existing smart contract codebase, including core contracts, core extensions, and middleware SDK, as well as develop new upcoming modules.

What You’ll Do

• Work at the intersection of blockchain protocols and smart contracts, contributing to the design and development of EVM-based systems
• Write, optimize, and audit smart contracts in Solidity, with a focus on performance, clarity, and security
• Build and experiment with staking, DeFi, and other protocol-level primitives
• Leverage tools like Foundry and Hardhat for development, testing, and deployment
• Conduct and support security audits, addressing vulnerabilities and integrating best practices
• Collaborate closely with protocol engineers to support integrations across L1 and L2 chains
• Work with web3 libraries like ethers.js, viem, and web3.py for off-chain contract interactions
• Occasionally contribute to related tooling and scripting in Python and TypeScript

Who You Are

• Strong understanding of Ethereum L1/L2 architecture and PoS mechanisms
• Familiar with blockchain primitives such as consensus algorithms and cryptography
• Deep knowledge of EVM internals: execution flow, memory/storage models, gas mechanics, and precompiles
• Expert in Solidity, with exposure to Yul, Vyper, or Huff (a plus)
• Solid grasp of DeFi concepts: DEXes, lending protocols, stablecoins, and staking mechanisms
• Proficient with Foundry, Hardhat, and comfortable working with ethers.js, web3.js, viem, or web3.py
• Strong security mindset, familiar with common attack vectors and the auditing process
• Practical coding experience in Python and JavaScript/TypeScript

Nice to Have

• Experience in compilers development
• Experience in Rust, Go, C/C++
• Experience in protocol development such as L1, L2
• OP stack, Arbitrum knowledge
• Experience with ZK on EVM

Today, more than 20 industries are already being positively shaped by this next generation of apps built on the peaq network. This is an opportunity to join a team of performance-driven entrepreneurs, engineers, and creatives, on a mission to unlock the Age of Abundance.

We’re looking for a skilled and detail-oriented Full Stack Developer to join our tech team and help build products that meet the highest quality standards and contribute to an exceptional user experience.

Responsibilities

• Develop and maintain Web3 applications using Next.js (frontend) and Node.js (backend).

• Build decentralized applications (dApps) that integrate with smart contracts.

• Work with Ethereum, Polygon, and other blockchain networks to interact with smart contracts using Web3.js, Ethers.js, or Viem.

• Implement and integrate ERC-20, ERC-721 (NFTs), and ERC-1155 token standards.

• Optimize frontend and backend performance for scalability, security, and usability.

• Build robust APIs and services using RESTful APIs and GraphQL.

• Collaborate with blockchain engineers, designers, and product teams to create seamless user experiences.

• Write clean, modular, and well-documented code following SOLID principles and Web3 best practices.

• Stay updated with the latest trends in Web3, blockchain development, and smart contract integration.

Basic Qualifications & Requirements

• 3+ years of experience as a Full Stack Developer.

• Proven experience working with JavaScript & TypeScript.

• Some experience working with Next.js, React.js, and Node.js for full stack development.

• Hands-on experience with blockchain and Web3 development.

• Proficiency with Web3.js, Ethers.js, or Viem to interact with smart contracts.

• Understanding of Ethereum Virtual Machine (EVM), Solidity, and smart contract development.

• Experience working with ERC-20 tokens, NFTs (ERC-721, ERC-1155), and DeFi protocols.

• Backend experience with Express.js, Nest.js, or similar frameworks.

• Familiarity with IPFS, The Graph, Moralis, or Alchemy for blockchain data access.

• Strong understanding of security best practices in Web3 applications.

• Experience with databases such as PostgreSQL, MongoDB, or Firebase.

• Version control with Git/GitHub and CI/CD pipelines.

Preferred Skills & Experience

• Experience with Solidity and smart contract development.

• Familiarity with Layer 2 solutions (Arbitrum, Optimism, zkSync, etc.).

• Knowledge of DeFi, DAOs, or NFT marketplaces.

• Understanding of decentralized storage solutions (IPFS, Arweave, Filecoin).

• Experience working with Python for blockchain data processing.

• Cloud services expertise (AWS, GCP, Azure).

Benefits

• Remote first. You’ll be joining a team working from all over the world.

• Flexible working arrangements. Create your own journey with flexible working schedules and locations.

• The opportunity to build and contribute to high-impact projects in a new industry that will positively shape the lives of hundreds of millions of people.

• High growth potential. Room to grow professionally, while learning new skills and working at the cutting edge of the decentralized Machine Economy.

• A warm and open culture at an international organization with team members from all four corners of the globe.

• An environment that values autonomy, team spirit and open communication.

We look forward to building the future with you.

Apply Now: