Senior Full Stack Engineer - Web3

Mesh•San Francisco, CA

6h•Remote

About The Position

At Mesh, our mission is to enable consumers to pay and be paid with any asset. Today, trillions of dollars in tokenized assets exist but remain largely unusable for everyday commerce. Mesh is bridging this gap by making crypto payments reliable, useful, and ubiquitous. We combine a powerful orchestration engine with a seamless consumer app to unlock liquidity for the world. Backed by leading investors like PayPal Ventures, Paradigm, and Galaxy Ventures, we are building the infrastructure for the next era of the global economy. Join us! Overview We are seeking a talented and experienced Senior Full Stack Software Engineer (Web3) with a strong background in building modern web applications and scalable backend systems. As a member of our team, you will play a crucial role in designing, developing, and maintaining our innovative software solutions, including integrating Web3 functionality such as wallet connections, signing flows, and on-chain/off-chain interactions. Mesh is a global company with headquarters in San Francisco, California USA. This candidate will work closely with the Engineering and Product teams spread across North America, Europe and India.

Requirements

5-7+ years of professional experience as a Full-stack Web3 Engineer with production experience across frontend, backend, and on-chain components, comfortable owning systems end-to-end.
Hands-on experience with Web3 building blocks, such as wallet connectivity/integrations, dApp development, blockchain RPCs and indexing, and/or on-chain/off-chain payment & settlement flows.
Familiar with DeFi primitives (e.g., DEXs, swaps, lending, trading platforms) and how they work in real systems.
Experience with some combination of: Modern frontend frameworks (e.g., TypeScript, React, Redux) Backend services and APIs (e.g., C#, Node.js, Go, Java, or similar) Smart contracts and on-chain interactions (e.g., Solidity)
Strong understanding of the transaction lifecycle (signing, submission, execution) and a security-first mindset when designing Web3 systems.
Solid fundamentals in building scalable, reliable, observable distributed systems (monitoring, logging, tracing, performance).
Frontend-leaning or backend-leaning profiles are welcome, as long as you have shipped Web3-enabled systems in production and want to expand your scope over time.

Responsibilities

Design, build, and operate production-grade Web3 systems used by real customers and assets at scale.
Own features end-to-end across frontend, backend, and on-chain components (with depth aligned to your strengths).
Lead the design and implementation of complex workflows involving wallets, transactions, settlements, and orchestration.
Partner closely with product, design, and external teams to turn ambiguous requirements into robust technical solutions.
Improve system reliability, security, and performance across distributed and on-chain components.
Mentor other engineers and contribute to engineering best practices, architecture reviews, and technical direction.