Senior/staff backend developer

1 semana atrás

Brasil ExpiWell Tempo inteiro

Senior/Staff Backend Developer (Nest. JS - AWS - Mongo - Apollo Graph QL) Required skills: Nest. JS, Mongo DB, AWS, Apollo Graph QL. Position Overview: We're seeking a very experienced Senior/Staff Backend developer/ Architect to modernize and extend our Expi Well research platform API using Nest JS and Apollo Graph QL, AWS and Mongo DB Atlas architecture. The main server will be serving a native IOS and and Android Application as well a modern unified React Native app. Key Responsibilities - Migrate legacy API endpoints from Express to Nest JS v11 with full Type Script typing. - Build RESTful APIs, Web Socket gateways, and background job systems.
-Improve out AWS infrastructure to a more modern VPS. AWS certification a huge plus.
- Redesign our Mongo DB architecture to better align with global customers.
- Apollo Graph QL certificate training in Parts 1 to 4. (must complete)- Implement authentication, payment processing, and real-time messaging features. - Write comprehensive unit tests (Jest) and maintain >80% code coverage - Design and document APIs using Swagger/Open API specifications. - Implement AWS integrations (S3, SES) and third-party services (Send Grid, Stripe, Twilio) Required Skills Technical Stack - Expert-level Nest JS (v11+) with dependency injection, guards, interceptors, pipes - Advanced Type Script (v5.7+) with generics, decorators, and type safety patterns
-Apollo Graph QL basic 1-4 certificate training, link above. - Mongo DB with Mongoose ODM and complex aggregations - Testing: Jest, unit testing, E2 E testing, test coverage strategies - RESTful API design and versioning strategies - Web Socket/Socket. IO for real-time features - AWS Services: S3, SES, Cloud Watch - Git workflow with conventional commits and PR reviews Nice to Have - React / Next.js experience - Redis for caching and distributed locking - Stripe payment integration - Twilio SMS/voice integration - Puppeteer/headless browser automation - Sentry/ Data Dog error monitoring - Docker containerization - Experience with research/survey platforms What Makes You Great for This Role - You understand modern backend architecture (microservices, event-driven, CQRS)- You write clean, maintainable code that follows SOLID principles - You're comfortable working with large codebases and legacy migration - You proactively write tests and documentation - You can debug complex issues across multiple services - You stay current with Java Script/Type Script ecosystem trends Project Context You'll be working on a research platform that powers mobile experience sampling studies. The API handles: - Survey delivery and response collection - Real-time participant messaging - Payment/incentive distribution - Media upload and transcription - Geofencing and sensor triggers - Anonymous survey participation Development Environment - Framework: Nest JS v11 monorepo with shared libraries - Code Quality: ESLint v9, Prettier, Type Script - Testing: Jest v30 with coverage reporting - AI Tools: Claude Code CLI for development assistance - Deployment: AWS infrastructure How to Apply Submit your application with: 1. Resume highlighting Nest JS, Graph QL, Mongo DB and Type Script projects 2. Git Hub and Linked In profile What We Offer: * Fully remote, flexible work setup * Supportive, collaborative global team * * Opportunities for long-term growth and increased responsibility

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