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 long‑term protocol roadmap, balancing new DeFi features with platform stability and security.

Hands-on Engineering

Actively contribute high-quality code (~30–50% 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 main‑net deployments, working knowledge of Rust (Anchor) and TypeScript/Node.js tooling
Deep understanding of EVM internals and typical L2 designs (Optimistic, ZK Rollups)
Hands‑on experience with Hardhat/Foundry, fuzz & invariant testing, and CI/CD pipelines (Docker, GitHub Actions).
Proven track record of smart‑contract 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

Rambøll

Tech Lead Blockchain