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1inch Labs

Tech Lead Blockchain

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  • Posted 18 days ago
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Job Description

Tech Lead is to guide and support a cross-functional software engineering team responsible for delivering high-impact, scalable, and maintainable solutions. You will lead technical design, promote engineering best practices, and foster collaboration across product, design, and operations. The ideal candidate combines strong hands-on technical skills with leadership and mentoring capabilities. This role is ideal for a senior-level engineer who thrives in a coding environment and wants to scale their impact by shaping the blockchain architecture of DeFi protocols, mentoring developers, and driving technical excellence across the stack.

Key Responsibilities: Technical Leadership

  • Drive the technical direction of projects, ensuring alignment with architectural principles and long-term platform goals
  • Own and evolve the micro-architecture, ensuring protocols are composable, modular, scalable, and maintainable
  • Review code and promote clean, efficient, and well-tested software
  • Act as the technical point of contact for your team, enabling clear communication across disciplines
  • Guide the team in applying best architectural and security practices, and gas optimizations
  • Shape longterm protocol roadmap, balancing new DeFi features with platform stability and security

Hands-on Engineering

  • Actively contribute high-quality code (:3050% of your time), focusing on critical components, prototypes, and performance-sensitive areas
  • Set and enforce coding standards, code structure, and review practices across the team
  • Troubleshoot and optimize complex systems, ensuring observability, fault tolerance, and performance tuning are integral to the design

Team Collaboration & Mentorship

  • Lead technical planning and estimation, ensuring realistic timelines and scalable designs
  • Balance delivering new features with refactoring and reducing technical debt
  • Champion best practices in CI/CD, infrastructure-as-code, and automated testing to ensure rapid, reliable deployments
  • Hire, onboard and coach junior/mid engineers

What You'll Need: Requirements

  • 6+ years of professional experience in software development; 2+ years in a senior or tech leadership role
  • Expert in Solidity/Yul with production mainnet deployments, working knowledge of Rust (Anchor) and TypeScript/Node.js tooling
  • Deep understanding of EVM internals and typical L2 designs (Optimistic, ZK Rollups)
  • Handson experience with Hardhat/Foundry, fuzz & invariant testing, and CI/CD pipelines (Docker, GitHub Actions)
  • Proven track record of smartcontract security (audits, threat modelling, remediation of critical issues)
  • Excellent problem-solving, communication, and leadership skills

Nice to haves

  • Background in regulated or complex industries (e.g., finance, healthcare)

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


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About Company

Job ID: 141283435