Full Stack Software Engineer - Web3 (SF)

Mesh Security; San Francisco (CA); Hybrid; USD 160,000 - 190,000; Full time

Benefits offered by this job

Unlimited PTO

Equity

Health insurance

Job summary

Mesh seeks a Senior Software Engineer (Web3) to design, build, and maintain our Web3 payment infrastructure. You’ll own features end‑to‑end across frontend, backend, and on‑chain components, connecting wallets, signing flows, and on‑chain interactions for real customers.

Collaborate with Product and Design to transform ambiguous requirements into robust solutions. You’ll work across North America, Europe, and India with a strong emphasis on security, reliability, and performance in a distributed

Qualifications

• 3–6 years of full‑stack Web3 engineering experience in production.
• Hands‑on with wallet connectivity, dApp development, RPCs, and on/off‑chain flows.
• Familiar with DeFi primitives and real‑world systems.
• Experience with modern frontend frameworks (TypeScript, React, Redux) or backend APIs (C#, Node.js, Go, Java).
• Bonus: Solana Anchor programs, SVM, or Solana Web3.js.

Responsibilities

• Design, build, and operate production‑grade Web3 systems used by customers at scale.
• Own features end‑to‑end across frontend, backend, and on‑chain components.
• Lead design and implementation of workflows involving wallets, transactions, and settlements.
• Collaborate with product, design, and external teams to translate requirements into robust solutions.
• Improve reliability, security, and performance across distributed and on‑chain components.
• Mentor engineers and contribute to engineering best practices and architecture reviews.
• Influence roadmap and lead large‑scale technical initiatives.

Skills

Web3 engineering

Full-stack development

Wallet integrations

Solidity

Solana Anchor

Frontend: TS/React

Tools

TypeScript

React

Redux

C#

Node.js

Go

Java

Solidity

Solana Web3.js

Solana Anchor

Job description

About Mesh

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 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 Web3 payment infrastructure, 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. This candidate will work closely with the Engineering and Product teams spread across North America, Europe, and India.

What You’ll Do

• 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.
• Influence the roadmap, lead large‑scale technical initiatives, and amplify impact across teams.

Who You Are

• 3-6 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)
  • Bonus: hands‑on experience with Solana Anchor programs, SVM smart contracts, or Solana Web3.js.
• 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.

The annual base salary range for this role is $160,000-$190,000 in San Francisco and New York. The compensation range provided may span multiple career levels and will be narrowed during the interview process based on factors including a candidate’s experience, skills, qualifications, and geographic location. For candidates outside of San Francisco and New York, compensation will be adjusted to reflect the applicable market and location‑based pay band. The base salary range listed excludes commission (if applicable), equity, and benefits. The pay range represents the minimum and maximum target for new‑hire compensation. Actual compensation may vary and may be higher or lower depending on individual circumstances.

Why You’ll Love It Here

At Mesh, you're not stepping into a typical role—you're joining a rocket ship in mid‑liftoff. You'll tackle complex, meaningful problems that actually move an industry forward, working alongside a sharp, motivated team that moves quickly, collaborates deeply, and expects everyone to operate with ownership. This is the kind of place where you'll see your work ship fast, make real impact, and be able to point to something and say, "I built that." You'll grow fast, level up your skills, and get a front‑row seat to how a high‑growth company scales from the inside, with competitive comp, solid benefits, and room to stretch your craft all coming standard. If you're energized by building, learning, and shaping something big—this is where you'll want to be.

In‑Office Expectations

Employees based in our San Francisco, New York, and Bangalore hubs are expected to work from the office at least 40% of the time (approximately two days per week). This expectation may vary slightly depending on role, team, and business needs. Certain roles that require closer cross‑functional collaboration or operational support may have additional in‑office requirements, which will be discussed during the interview process. Our hybrid approach is designed to balance meaningful in‑person collaboration, team building, and real‑time decision‑making with the flexibility to work remotely. We believe this structure supports strong execution while preserving autonomy and focus time.

How We Care For Our Team

We believe great work happens when people feel valued and supported. That starts with competitive salary and equity that grows as you and the company grow, plus comprehensive health coverage for you and your family. We offer unlimited PTO—and we mean it. Take the time you need to recharge and show up at your best.

We’re invested in your growth with a dedicated budget for courses, conferences, and certifications. Work from wherever you’re most productive with our remote‑friendly approach, and count on having the top‑tier tools and equipment you need to do exceptional work.

Mesh Pay is committed to equal employment opportunities regardless of race, color, genetic information, creed, religion, sex, sexual orientation, gender identity, lawful alien status, national origin, age, marital status, and non‑job related physical or mental disability, or protected veteran status. Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.