Senior Full Stack Engineer

About the role

We are seeking a senior full‑stack engineer to join a US‑based client and help build high‑performance, scalable web applications. The role is product‑focused, allowing you to own features from concept through production while collaborating closely with product, design, and the client.

Key responsibilities

• Design, develop, and maintain front‑end and back‑end components using TypeScript, modern JavaScript, HTML5, and CSS3.
• Build scalable APIs, authentication flows, request orchestration, and asynchronous workflows.
• Architect modular monorepo setups (e.g., Nx) and evolve system architecture.
• Write clean, test‑driven code and ensure quality through automated testing.
• Participate in code reviews, planning, and technical decision‑making.
• Leverage AI‑assisted tools (Copilot, Claude, etc.) to accelerate delivery and, when required, integrate LLM‑powered features.

Required profile

• 4+ years of professional software development experience.
• Strong proficiency with at least one modern front‑end framework (React, Vue, or Angular) and Node.js for backend work.
• Solid understanding of scalable front‑end and back‑end architectures and modern TypeScript/JavaScript.
• Experience with automated testing, TDD, and authentication integration (Auth0 or similar).
• Ability to work autonomously in fast‑paced environments and communicate fluently in English.

Required skills

• TypeScript, JavaScript (ES8+), HTML5, CSS3
• React, Vue, Angular, Next.js
• Node.js, NestJS, Prisma, SQL
• Nx monorepo, Vercel, SSR, Core Web Vitals
• Auth0 (or similar), automated testing, TDD
• Python
• AI tools (Copilot, Claude) and LLM frameworks (LangChain, LangGraph, Vercel AI SDK, MCP)
• Accessibility standards (ADA/WCAG)