Senior Fullstack TypeScript Developer – React, Next.js

Stack Builders

Senior Fullstack TypeScript Developer for scalable backend systems at Stack Builders. Contributing to both backend and frontend on a Documentation as Code platform.

Posted 4/22/2026contractRemote • New York • 🇺🇸 United StatesSeniorWebsite

Tech Stack

Tools & technologies

JavaScriptNext.jsReactTypeScript

About the role

Key responsibilities & impact

Design and develop scalable backend services and APIs using TypeScript and Next.js
Build and maintain fullstack features, contributing across both backend and frontend layers
Architect efficient data flows and ensure performance, reliability, and maintainability
Collaborate with cross-functional teams in agile ceremonies (planning, refinement, workshops)
Contribute to MVP delivery and ongoing product improvements
Participate in code reviews and pairing sessions to maintain high engineering standards

Requirements

What you’ll need

6+ years of professional development experience is required.
4+ years of professional experience with TypeScript, building production-grade applications
Strong backend development experience using Next.js (API routes, server-side logic, architecture design)
Solid experience with React for building modern, responsive user interfaces
Experience designing and consuming REST APIs
Strong understanding of backend architecture, performance, and scalability best practices
Ability to work independently in a fast-paced, distributed environment
Advanced spoken and written English
Availability to overlap at least 6 hours with Central Time (CT)
Located in the United States.

Benefits

Comp & perks

100% remote, flexible work environment
Long-term, full-time projects with globally recognized clients
Strong learning culture with mentorship and 1:1 sessions
Regular pairing sessions and collaborative development
Opportunities for conferences, OSS contributions, and technical content creation
Competitive and timely payments
A supportive and highly skilled engineering community

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

TypeScriptNext.jsReactREST APIsbackend architectureperformance optimizationscalability best practicesfullstack developmentMVP deliverycode reviews

Soft Skills

collaborationindependencecommunicationagile methodologiesproblem-solvingadaptabilityattention to detailtime managementteamworkleadership