Senior/Staff Backend Developer
Há 23 horas
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 ResponsibilitiesMigrate 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.- Redesign our MongoDB architecture to better align with global customers.Apollo GraphQL 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 coverageDesign and document APIs using Swagger/OpenAPI specifications.Implement AWS integrations (S3, SES) and third-party services (SendGrid, Stripe, Twilio)Required SkillsTechnical StackExpert-level NestJS (v11+) with dependency injection, guards, interceptors, pipesAdvanced 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 aggregationsTesting: Jest, unit testing, E2E testing, test coverage strategiesRESTful API design and versioning strategiesWebSocket/Socket.IO for real-time featuresAWS Services: S3, SES, CloudWatchGit workflow with conventional commits and PR reviewsNice to HaveReact / Next.js experienceRedis for caching and distributed lockingStripe payment integrationTwilio SMS/voice integrationPuppeteer/headless browser automationSentry/ Data Dog error monitoringDocker containerizationExperience with research/survey platformsWhat Makes You Great for This RoleYou understand modern backend architecture (microservices, event-driven, CQRS)You write clean, maintainable code that follows SOLID principlesYou're comfortable working with large codebases and legacy migrationYou proactively write tests and documentationYou can debug complex issues across multiple servicesYou stay current with JavaScript/TypeScript ecosystem trendsProject ContextYou'll be working on a research platform that powers mobile experience sampling studies. The API handles:Survey delivery and response collectionReal-time participant messagingPayment/incentive distributionMedia upload and transcriptionGeofencing and sensor triggersAnonymous survey participationDevelopment EnvironmentFramework: NestJS v11 monorepo with shared librariesCode Quality: ESLint v9, Prettier, TypeScriptTesting: Jest v30 with coverage reportingAI Tools: Claude Code CLI for development assistanceDeployment: AWS infrastructureHow to ApplySubmit your application with:1. Resume highlighting NestJS, GraphQL, MongoDB and TypeScript projects2. GitHub and LinkedIn profileWhat We Offer:* Fully remote, flexible work setup* Supportive, collaborative global team* * Opportunities for long-term growth and increased responsibility
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