Senior Web3 Back-end Engineer

Senior Multichain Backend Web3 Engineer

Location: Remote – US/Europe/Latam/Dubai, must have 5 hours overlap with EST.

Compensation: $150K - $200K

Join a well‑funded, expert‑led team building the foundational yield engine for the crypto economy. We are creating the unified layer that intelligently and continuously reallocates capital across Decentralized Finance (DeFi) protocols to maximize returns. This is a ground‑floor opportunity to architect the transition to a multi‑chain Web3 future.

This high‑impact role gives you immense ownership over the most complex and critical aspects of our platform. You will be responsible for designing and building the scalable infrastructure required to connect and manage assets across various blockchain networks, ensuring security, reliability, and efficiency for all on‑chain interactions. This role is ideal for engineers who thrive on technical problem‑solving in a fast‑paced, high‑ambiguity environment.

Key Responsibilities & Impact

• Platform Architecture: architect and build a comprehensive multichain yield platform, a key piece of DeFi infrastructure.
• Protocol Integration: design and implement robust backend systems to interface directly with various on‑chain protocols and smart contracts across multiple networks.
• Complex Transaction Management: own and optimize intricate transaction flows, including secure interaction with RPC nodes, managing state, and ensuring reliable, idempotent on‑chain execution.
• Future Definition: play a key role in defining and implementing the next generation of on‑chain yield strategies and products.
• Security & Quality: maintain the highest standards for security, quality, and robustness for all production‑grade Web3 systems.

Essential Qualifications

• Production Web3 Experience: 3+ years of demonstrable experience building and releasing production‑grade Web3 backend systems.
• Protocol Integration Mastery: strong track record of integrating with various protocols and smart contracts, including managing complex transaction flows and seamless RPC node interaction.
• EVM and DeFi Fundamentals: deep understanding of EVM, smart contract best practices, and current industry patterns in DeFi.
• Tooling Proficiency: extensive experience with popular Web3 development and testing tools/libraries (e.g., Tenderly, ethers, viem, wagmi, or similar).

Execution & Ownership

• Strong bias towards action and ability to work autonomously, thriving in high‑ambiguity environments.
• Perseverence to figure out the solution to any complex, previously unsolved technical challenge.

Nice to Have

• Prior experience deploying smart contracts to mainnet and various EVM‑compatible chains.

Benefits

• Compensation: highly competitive salary in line with top‑tier crypto protocols ($180,000 - $250,000+ annual base salary, depending on location and experience).
• Ownership: significant company equity/token allocation to ensure direct participation in the platform's success.
• Team: opportunity to work alongside an expert team backed by premier, industry‑leading venture capital firms.
• Career Growth: ground‑floor opportunity with immense influence over the product and technical roadmap.
• Flexible Working: remote‑first culture with flexibility built into the core.

Commitment to Equality and Accessibility

At MLabs, we are committed to offering equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and provide information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or would like to see the job‑advert in an accessible format, please let us know at the earliest opportunity by emailing

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Application Process

Due to the high volume of applications, we anticipate we cannot provide individual feedback to all candidates. If you do not hear back from us within 4 weeks of your application, please assume that you have not been successful on this occasion.