Senior Software Engineer, Blockchain
Skills
About This Role
Overview
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 prioritise candidates who are based in Dubai then consider those working remotely in one of our European Hub Locations (UK, Spain or Germany).*
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.
*Location: For this role, we prefer candidates who are either based in Dubai or working remotely within +/- 4 hours GST time.*
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 use AI-assisted tools to help us review applications efficiently.
- These tools support our recruitment team but do not make decisions on our behalf — every application is reviewed by a person before any outcome is determined.
- No offer or rejection is made solely on the basis of automated processing.
- For full details on how we use these tools and your rights in relation to them, please see our Applicant and Candidate Privacy Notice.
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