Senior Blockchain Engineer (DeFi)
Salary: Up to $216,000 per year
Location: Dubai preferred | Remote within ±4 hours GST (UK, Spain, Germany considered)
The Role
We’re looking for a Senior Blockchain Engineer with a strong get-stuff-done mentality and a passion for innovation. You’ll play a key role in designing, building, and optimising smart contracts and blockchain infrastructure in a fast-moving DeFi environment.
You’ll collaborate closely with senior product leadership, product teams, and fellow engineers to deliver secure, scalable, and high-performance decentralised solutions.
Key Responsibilities
* Design and optimise blockchain architecture with scalability, security, and performance in mind
* Lead development, auditing, and integration of smart contracts within decentralised protocols
* Conduct technical research and PoC experiments while applying blockchain best practices
* Build and improve cross-chain solutions (swaps, bridges, interoperability tools)
* Develop gas-optimised algorithms and smart contracts
* Define and implement CI/CD pipelines for blockchain development
* Identify and mitigate potential security risks and attack vectors
* Stay ahead of emerging blockchain, Web3, and crypto technologies
* Perform in-depth code reviews and mentor other engineers
* Work closely with auditors and cross-functional teams to support successful launches
Requirements
* 7+ years of software engineering experience, including 3+ years in blockchain
* Strong knowledge of blockchain ecosystems, smart contracts, and dApps
* Hands-on experience with Ethereum, Layer 2 solutions (Optimistic & ZK rollups), and cross-chain protocols
* Proven experience in technical leadership and architectural decision-making
* Solid background in blockchain security and smart contract auditing
Technical Skills
* Solidity, Yul, Rust, TypeScript
* Smart contract frameworks: Foundry, Hardhat
* Deep understanding of DeFi protocols, AMMs, liquidity pools, and oracles
* Blockchain security principles and audit methodologies
* Experience building high-performance distributed systems