Senior Fullstack TypeScript Developer (React / Next.js) - Contract Role (Remote)

Location: Rio de Janeiro, State of Rio de Janeiro, Brazil, Brazil, State of São Paulo, Brazil, Federal District, Brazil

Department: Engineering

Workplace: remote

Employment Type: contract

Description

Stack Builders is an international software development consultancy dedicated to delivering high-quality, modern software solutions. Our team thrives on curiosity, collaboration, and continuous learning, helping clients bring innovative ideas to life using best-in-class technologies and practices.

We are looking for a Senior Fullstack TypeScript Developer with a strong backend -orientation to join our Documentation as Code (DaC) platform team. This role is ideal for someone who excels at building scalable backend systems using TypeScript, while also being comfortable contributing to a modern React-based frontend

The projected hourly range for this position is $45.00 to $50.00, determined by the candidate's interview outcome, skills, experience, education, and alignment with market data.

Requirements

What We’re Looking For

• 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.
  

What You’ll Do

• 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

Nice to Have

• Experience with Documentation as Code (DaC) workflows
• Familiarity with Remark and MDX ecosystems
• Infrastructure-as-Code experience (e.g., Terraform)
• Containerization experience (e.g., Docker)

Benefits

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

About Us

Stack Builders is proud to be a people-first, equal-opportunity employer committed to fostering a diverse and inclusive workplace. We value individuals for their skills, mindset, and potential, and we strive to create an environment where everyone can thrive.