Senior Software Engineer, Blockchain

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3 days ago

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1inch

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Crypto • Web 3

1inch is a decentralized finance (DeFi) protocol and decentralized exchange (DEX) aggregator that finds the best token-swap rates by routing trades across multiple liquidity sources and blockchain networks. It offers routing algorithms, aggregation services, and related DeFi tools (wallets, liquidity protocols, and APIs) to help users and developers access optimal on-chain liquidity.

51 - 200 employees

₿ Crypto

🌐 Web 3

📋 Description

• 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.

🏖️ Benefits

• 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