Senior Frontend Engineer (San Francisco) – Part Time

Filled
February 25, 2026
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Job Description

Company Overview

Mesh is a global technology company headquartered in San Francisco, California, focused on building secure and seamless digital products. The organization collaborates across teams in North America, Europe, and India to deliver innovative software solutions in modern web and fintech ecosystems.

Job Summary

We are seeking an experienced Senior Frontend Engineer to design, develop, and maintain high-quality web applications. In this role, you will collaborate closely with product managers, designers, and engineers to deliver responsive, scalable, and user-centric applications using modern frontend technologies.

This is a part-time opportunity based in San Francisco, CA.

Key Responsibilities

  • Develop and maintain responsive web applications using HTML, CSS, and JavaScript.
  • Build modern frontend solutions using TypeScript, React, and Redux.
  • Collaborate with UX/UI teams to implement intuitive, user-focused interfaces.
  • Optimize applications for speed, scalability, and performance.
  • Ensure cross-browser compatibility and mobile responsiveness.
  • Write clean, maintainable, and well-documented code.
  • Conduct code reviews and provide feedback to team members.
  • Troubleshoot, debug, and enhance application performance.

Required Qualifications

  • 5–7+ years of experience as a Frontend Engineer (Full-stack experience is a plus).
  • Strong expertise in TypeScript, React, Redux, and modern frontend architecture.
  • Experience with build tools and dependency management such as Vite, TSC, Yarn, NPM, Monorepos.
  • Experience with testing frameworks (React Testing Library, Jest, or Playwright).
  • Knowledge of crypto/web3 technologies such as Wallet APIs, Wagmi, WalletConnect, Ethers.js, or Viem.
  • Strong communication and collaboration skills.

Preferred Qualifications

  • Experience with Microsoft Azure cloud services.
  • Background in fintech or cryptocurrency industry.