Senior Software Engineer (Blockchain)

Overview

Todas las habilidades, cualificaciones y experiencia relevantes que necesitará un candidato seleccionado se enumeran en la siguiente descripción.

1inch is the DeFi ecosystem building financial freedom for everyone. 1inch products help users and builders trade, hold and track digital assets with security and an intuitive user experience. We are looking for a Senior Blockchain Engineer with a Get Stuff Done mentality and a passion for innovation. You will design, develop, and optimise smart contracts and blockchain infrastructure, balancing fast execution with high security and quality.

Location : We hire with a focus on Dubai and Europe. For this role, candidates based in Dubai or working remotely within ±4 hours GST time are preferred.

Responsibilities

Design and optimise blockchain product architecture with a focus on scalability, security, and performance

Lead development, auditing, and integration of smart contracts within decentralised protocols

Conduct technical research and PoCs, implementing best practices in blockchain development

Develop and improve cross-chain interoperability solutions (cross-chain swaps, bridges)

Design and develop efficient algorithms with a focus on gas optimisation

Define and implement CI / CD processes for blockchain development

Analyse and address potential attack vectors and ensure security best practices

Monitor emerging blockchain, Web3, and crypto technologies

Perform rigorous code reviews, mentor developers, and enforce best practices in blockchain engineering

Collaborate with auditors and cross-functional teams to ensure successful product launches

Requirements

7+ years of software development experience, including 3+ years in blockchain engineering

Deep understanding of blockchain ecosystems, smart contracts (Solidity, Yul, EVM), and dApps

Hands-on experience with Ethereum, Layer 2 solutions (Optimistic & ZK Rollups), and cross-chain protocols

Proven track record in technical leadership, architectural decision-making, and mentoring teams

Strong background in blockchain security and smart contract audits

Skills

Solidity, Yul, Rust, TypeScript

Smart xcskxlj contract development and deployment frameworks (Foundry, Hardhat)

Understanding of DeFi protocols, AMMs, liquidity pools, and oracle integrations

Blockchain security principles and 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, supportive environment

Open to new ideas — pitch your vision

Competitive pay aligned with skills and experience

Be part of shaping the future of DeFi

Unlimited vacation days

Fully compensated for work gear to set you up for success

Annual team retreats at top international locations

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