Job Specifications
1inch is the DeFi ecosystem building financial freedom for everyone. 1inch products help users and builders trade, hold and track digital assets - with the self-custody, comprehensive security and the intuitive user experience they need to unlock the potential of true crypto ownership. 1inch protocols and APIs provide core infrastructure across the DeFi industry and beyond.
So if you’re someone who thinks big, moves fast and wants to make an impact right from day one, then get ready to join our industry-changing team.
Location: We hire with a focus on Dubai and Europe. For this role, we prefer candidates who are either based in Dubai or working remotely within +/- 4 hours GST time.
We're looking for a Senior Blockchain Engineer with a "Get Stuff Done" mentality and a passion for innovation. As a key member of our team, you'll be responsible for designing, developing, and optimising smart contracts and blockchain infrastructure. This role requires a strong problem-solver who can navigate the constant changes of the crypto market while executing quickly and maintaining a high standard of security and quality.
You'll work closely with the CPO, product teams, and other engineers to deliver innovative and secure solutions within the DeFi ecosystem. Your commitment to decentralisation and open-source development will be essential in helping us stay ahead of industry trends and build a platform that is robust and forward-thinking.
Responsibilities
Designing and optimising blockchain product architecture, with a focus on scalability, security, and performance
Leading the development, auditing, and integration of smart contracts within decentralised protocols
Conducting technical research and proof-of-concept (PoC) experiments, while implementing best practices in blockchain development
Developing and improving cross-chain interoperability solutions, such as cross-chain swaps and bridges
Designing and developing efficient algorithms, with a focus on gas optimisation
Defining and implementing effective CI/CD processes for blockchain development
Analysing and addressing potential attack vectors and ensuring security best practices
Continuously monitoring emerging blockchain, Web3, and crypto technologies
Performing rigorous code reviews, mentoring developers, and enforcing best practices in blockchain engineering
Collaborating with auditors and cross-functional teams to ensure successful product launches
Requirements
7+ years of software development experience, with at least 3+ years in blockchain engineering
Deep understanding of blockchain ecosystems, smart contracts (Solidity, Yul, EVM), and decentralized applications (dApps)
Hands-on experience with Ethereum, Layer 2 solutions (Optimistic & ZK Rollups), and cross-chain protocols (atomic swaps, bridges, etc.)
Proven track record in technical leadership, architectural decision-making, and mentoring development teams
Strong background in blockchain security and experience with smart contract audits
Skills
Proficiency in Solidity, Yul, Rust, TypeScript
Experience with smart contract development and deployment frameworks (Foundry, Hardhat)
Understanding of DeFi protocols, AMMs, liquidity pools, and oracle integrations
Expertise in blockchain security principles and smart contract auditing methodologies
Experience in building high-performance distributed systems
Why you'll love working with us
Join a young, creative team in a fast-paced and supportive environment
We’re open to new ideas — if you’ve got a vision, pitch it and make it happen
Enjoy competitive pay that matches your skills and experience
Be part of a company that’s shaping the future of DeFi
Take time when you need it — we offer unlimited vacation days
Get fully compensated for your work gear — we’ll set you up for success
Travel with us! We host an annual team retreat at a top international location
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
About the Company
1inch is the DeFi ecosystem building the future of finance. A community of engineers, designers and problem solvers who believe in the power of Web3 to transform the way the world works - and to offer fair and universal access to finance, for everyone.
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