Senior Backend Developer

Requirements

• TypeScript – The primary language of NestJS; deep knowledge is essential
  
• Node.js – NestJS is built on top of Node.js, so a solid understanding is required
  
• REST API and/or GraphQL – Experience designing and documenting APIs (e.g., using Swagger)
  
• SQL (e.g., PostgreSQL, MySQL) and/or NoSQL (e.g., MongoDB) – Strong database knowledge
  

• ORMs – Experience with tools like TypeORM or Prisma, commonly used in NestJS projects
  

• Authentication/Authorization – Experience with JWT, OAuth2, and Passport.js for secure access control.
  
• Validation – Skilled in using class-validator and class-transformer in NestJS for robust input validation.
  
• Error Handling & Exception Filters – Implements structured error responses and exception filtering in backend services. 
  
• Caching – Familiar with Redis, in-memory caching, and HTTP caching strategies to optimize performance.
  
• Rate Limiting & Throttling – Applies techniques to protect APIs from abuse and ensure fair usage.
  
• Logging & Monitoring – Utilizes tools like Winston, Prometheus, Grafana, and Sentry for observability, log management, and error tracking.
  

Especially valuable in microservices or cloud-native environments)

• Docker – Proficient in containerization and deploying NestJS applications in Docker environments.
  
• CI/CD Pipelines – Experience with GitHub Actions, GitLab CI, and Jenkins for automating build and deployment workflows.
  
• Cloud Platforms – Basic to intermediate knowledge of AWS, Google Cloud, and Azure, including core services like EC2, Lambda, S3, and RDS.
  
• Kubernetes – Familiarity with container orchestration and deploying scalable applications (advanced level preferred).
  

• Unit & Integration Testing – Writes unit and integration tests using Jest and the NestJS Testing Module.
  
• End-to-End (E2E) Testing – Uses Supertest with NestJS to ensure full application flow works as expected.
  

• Mocking & Dependency Injection – Applies mocking strategies and leverages dependency injection effectively for isolated testing.
  

• Domain-Driven Design (DDD) – Understands how to model complex domains using DDD principles.
  
• Microservices Architecture – Designs scalable systems using NestJS with message broker communication (e.g., RabbitMQ, Kafka).
  
• Event-Driven Architectures – Builds loosely coupled systems based on event flows.
  
• Clean Architecture & Separation of Concerns – Adheres to best practices for maintainable and testable codebases
  
  

Benefits

• Competitive salary
  
• Full remote – (but you work in the office if you want)
  
• Opportunities for continuous professional development
  
• Recognition of performance