Full-Stack Development: Build features across Next.js 15 (React 19), Rails 6.0, and Python/AWS Lambda services
System Integration: Maintain and extend integrations with 8+ third-party fitness management APIs
Platform Migration: Help complete the transition from our Rails monolith to Next.js architecture
Scalable Infrastructure: Design and implement solutions for multi-tenant SaaS with subdomain-based isolation
Real-Time Systems: Work with webhooks, message queues (SQS, Sidekiq), and real-time messaging (Stream Chat)
Data Synchronization: Ensure data consistency across multiple external systems and our central GraphQL layer
Technical Leadership: Mentor engineers, conduct code reviews, and establish best practices

Requirements

6+ years of professional software engineering experience
Strong full-stack capabilities with modern JavaScript/TypeScript and at least one backend language (Ruby, Python, Node.js)
Production React experience with hooks, context, and state management (React Query/Redux)
RESTful & GraphQL API design and implementation
Relational databases (PostgreSQL) with complex queries and data modeling
AWS services (Lambda, SQS, S3, CloudFront, or similar cloud platforms)
Daily use of AI coding tools (Cursor, Windsurf, Claude Code, etc.) required

Benefits

Applicant Tracking System Keywords

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

Full-Stack DevelopmentNext.jsReactRailsPythonAWS LambdaRESTful APIGraphQLPostgreSQLJavaScript

Technical LeadershipMentoringCode ReviewsBest Practices