Senior / Staff Backend Developer (Nest.Js - Aws - Mongo - Apollo Graphql)
ExpiwellPindamonhangaba, São Paulo, BrasilHá 3 dias
Descrição da vagaRedesign our MongoDB architecture to better align with global customers. Apollo GraphQL certificate training in Parts 1 to 4. Implement authentication, payment processing, and real-time messaging features. Write comprehensive unit tests (Jest) and maintain > Design and document APIs using Swagger / OpenAPI specifications. Implement AWS integrations (S3, SES) and third-party services (SendGrid, Stripe, Twilio)Required Skills Expert-level NestJS (v11+) with dependency injection, guards, interceptors, pipes Advanced TypeScript (v5.7+) with generics, decorators, and type safety patterns Apollo GraphQL basic 1-4 certificate training, link above. MongoDB with Mongoose ODM and complex aggregations Testing : Jest, unit testing, E2E testing, test coverage strategies RESTful API design and versioning strategies WebSocket / Socket.IO for real-time features AWS Services : S3, SES, CloudWatch Git workflow with conventional commits and PR reviewsNice 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 platformsWhat 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 JavaScript / TypeScript ecosystem trendsProject Context Survey delivery and response collection Real-time participant messaging Payment / incentive distribution Media upload and transcription Geofencing and sensor triggers Anonymous survey participation Framework : NestJS v11 monorepo with shared libraries Code Quality : ESLint v9, Prettier, TypeScript Testing : Jest v30 with coverage reporting AI Tools : Claude Code CLI for development assistance Deployment : AWS infrastructureHow to Apply Fully remote, flexible work setup Supportive, collaborative global team Opportunities for long-term growth and increased responsibility
Senior / Staff Backend Developer (Nest.JS - AWS - Mongo - Apollo GraphQL)Required skills : Nest.JS, MongoDB, AWS, Apollo GraphQL.Position Overview :
We're seeking a very experienced Senior / Staff Backend developer / Architect to modernize and extend our ExpiWell research platform API using NestJS and Apollo GraphQL, AWS and MongoDB 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 NestJS v11 with full TypeScript typing.
- Build RESTful APIs, WebSocket gateways, and background job systems.
- Improve out AWS infrastructure to a more modern VPS.
AWS certification a huge plus.
(must complete)
80% code coverage
Technical Stack
You'll be working on a research platform that powers mobile experience sampling studies.
The API handles :
Development Environment
Submit your application with :
1. Resume highlighting NestJS, GraphQL, MongoDB and TypeScript projects
2. GitHub and LinkedIn profileWhat We Offer :
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Backend Developer • Pindamonhangaba, São Paulo, Brasil
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