Senior Software Engineer, (Blockchain)

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.