Web3 Technical Team Lead (3 month contractor position)

Linum Labs; Pretoria; Remote; ZAR 400,000 - 500,000; Full time

Job summary

A leading blockchain technology firm is seeking a Web3 Team Lead to oversee technical coordination across development teams and ensure successful integration of smart contracts in applications. The ideal candidate will have over 5 years of engineering experience, expertise in Web3 and DeFi applications, and experience leading cross-functional teams. This role offers strong autonomy, remote work flexibility, and opportunities for career growth.

Benefits

Paid travel to global Web3 conferences

Strong autonomy and ownership

Career growth opportunities

Qualifications

• 5+ years of engineering experience, with a focus on Web3 or DeFi.
• Experience working with cross-functional teams to deliver MVPs.
• Prior technical lead experience required.

Responsibilities

• Ensure communication and technical alignment between teams.
• Own the integration architecture for the application.
• Translate requirements into engineering tasks and support sprint planning.
• Review frontend and backend code implementations.
• Coordinate QA across the stack and assist in release testing.

Skills

Web3 application delivery

Smart contract integration

TypeScript

NextJS

Node and React knowledge

Tools

ethers.js

web3.js

GraphQL

Job description

Overview

We’re on the hunt for a Web3 Team Lead who doesn’t just ship features—they steer squads, architect clean integrations, and push high-quality Web3 products over the finish line.

At Linum Labs, we’re building more than just smart contracts. We’re launching DeFi platforms, orchestrating full-stack blockchain apps, and experimenting at the bleeding edge in our Venture Studio. From production-grade audits to zero-to-one MVPs, we’re scaling fast—and we need a technical leader who can bring clarity to chaos and lead teams that deliver.

This isn’t a “just keep the lights on” role. You’ll be deep in the details of frontend/backend/contract coordination, while keeping the bird’s eye view to drive delivery.

Who we are looking for

We’re looking for a Web3 Technical Team Lead who can coordinate a cross-functional Web3 team through delivery — ensuring clarity across frontend, backend, indexing, and contract integration workflows. While hands-on smart contract coding is not required, you should be deeply familiar with how DeFi systems work, how to interact with smart contracts, and how to guide a team in integrating them safely and effectively.

Key Responsibilities

• Technical Coordination: Ensure seamless communication and technical alignment between frontend, backend, QA, and smart contract teams.
• Architecture Stewardship: Own the integration architecture — how contracts, The Graph, backend workers, and the web app interconnect.
• Sprint Leadership: Translate high-level requirements into actionable engineering tasks and support the PM with sprint planning and team coordination.
• Code Review (Non-Solidity): Review and guide frontend, API/backend, and indexing work — ensuring implementation meets the spec and integrates cleanly with contracts.
• Testing & Delivery: Coordinate QA across the stack, assist in defining test plans for DApp-contract interactions, and support final release testing and walkthroughs.

Must-Haves

• 5+ years of engineering experience, with recent focus on Web3 or DeFi application delivery.
• Proven experience integrating smart contracts into frontend or backend systems (e.g. via ethers.js, web3.js, or API wrappers).
• Familiarity with The Graph, including designing subgraph schemas and using GraphQL for indexed on-chain data.
• Experience working with product designers, PMs, and QA to coordinate cross-functional MVP delivery.
• Prior technical lead role
• TypeScript, NextJS, Node and React Knowledge

Interview Process

Culture Interview – A casual chat to get to know you.

Technical Assessment – Show us your skills with a hands-on test, like identifying vulnerabilities in a contract.

Technical Interview – Discuss your assessment, approach, and expertise with our team.

Interview with the CEO of Linum Labs - Meet our leadership!

Why Join Us?

• Because we’re building the kind of company we’d actually want to work for—one where:
• Autonomy is real, not lip service
• Big thinking is backed by sharp execution
• The culture is creative, weird (in the best way), and full of ownership-driven people.

Here’s What You Get

• A remote-first team with async-friendly flexibility
• Paid travel to top global Web3 conferences and hackathons
• Strong autonomy, real ownership, and no micromanagement
• Projects with impact—from DeFi protocols to frontier experiments
• Career growth in every direction: leadership, architecture, or founding your own product within our Venture Studio

Equal Opportunity

We are an equal opportunity employer. We are committed to equality and weaving a community that values diverse perspectives and experiences and are actively seeking a diverse pool of applicants. All employment decisions are made without regard to race, colour, national origin, ancestry, sex, gender, gender identity or expression, sexual orientation, age, genetic information, religion, disability, medical condition, pregnancy, marital status, family status, veteran status, or any other characteristic protected by law.