Senior Technical Lead – Architecture & Solidity

Full-Time, 1099 Contractor | Fully Remote | Global

DMD Solutions is excited to partner with Foundations United in the search for a Senior Technical Lead to guide the architecture, development, and delivery of world-class decentralized products. This is a high-impact leadership role for a hands-on technical expert with deep blockchain knowledge and a passion for building secure, scalable Web3 systems.

About Foundations United

Foundations United is a mission-driven Web3 organization operating at the forefront of decentralized innovation. They believe blockchain technology can fundamentally reshape the way people build, work, govern, and exchange value across the globe. Their work spans smart contracts, dApps, protocols, and tooling that empower individuals and communities worldwide.

They’re a fast-paced, async-first, fully remote team made up of exceptionally talented contractors across the globe. Every day, they’re inspired by the creativity, integrity, and dedication of their people, and they’re just getting started.

If you want to work on products that truly matter in an environment that values autonomy, impact, and trust, you’ll thrive here.

Role Overview

The Senior Technical Lead will own architecture decisions, validate smart contract systems, mentor engineers, and collaborate closely with product and design teams to deliver robust decentralized applications. You’ll work across the stack, from Solidity and blockchain infrastructure to backend integrations, ensuring everything is secure, efficient, and future-proof.

Key Responsibilities

• Lead architectural design and technical decision-making across product teams
• Review and contribute to Solidity codebases, with a focus on security, testing, and deployment
• Collaborate with engineers to implement scalable, secure, and gas-efficient smart contracts
• Own system design for integrations between smart contracts, backend services, and dApps
• Provide mentorship, conduct code reviews, and support technical onboarding
• Drive improvements to engineering best practices and development workflows
• Stay current on EVM advancements, Layer 2 scaling, and emerging Web3 tooling

Requirements

• 6+ years of software engineering experience, including 2+ years in a technical leadership role
• 2+ years building and deploying Solidity smart contracts in production
• Deep understanding of the EVM, blockchain consensus mechanisms, and common attack vectors
• Strong full-stack familiarity (TypeScript, Node.js, REST/GraphQL APIs, Web3.js/ethers.js)
• Proven track record designing and scaling distributed systems
• Experience mentoring developers and leading cross-team technical initiatives
• Familiarity with blockchain security practices, audits, and bug bounty processes

Preferred Qualifications

• Contributions to open-source Web3 projects
• Experience integrating zero-knowledge proofs or Layer 2 scaling solutions
• Knowledge of protocol design and on-chain governance
• Hands-on use of testing frameworks such as Hardhat, Foundry, or Truffle

DMD Solutions is managing the recruitment process for this role and will guide candidates through every step, ensuring the best possible match for Foundations United.

If you’re ready to take ownership of complex blockchain architecture and lead talented teams building the future of Web3, apply now.

Listed in: Web3 Jobs, Developer Crypto Jobs, Engineering Web3 Jobs, Full Time Crypto Jobs, Remote Web3 Jobs, Senior Crypto Jobs, Web3 Crypto Jobs, Solidity Web3 Jobs, TypeScript Web3 Jobs.