REMOTE (INDIA): Backend Engineer - SaaS platform

Responsibilities:

• Maintain and enhance the backend services powering the SaaS platform (Node.js/Express/NestJS with TypeScript).
• Ensure uptime, scalability, and performance of APIs handling campaign generation, template storage, and credit-based billing.
• OptimizeMongoDB queries, indexes, and caching strategies for high-performance APIs.
• Implement and manageRedis, job queues, and async workflows.
• Monitor and maintain AWS infrastructure: EC2, S3, CloudWatch, Lambda, SES.
• Implementsecurity best practices: API authentication, rate-limiting, GDPR compliance, email data handling.
• MaintainAPI versioning and documentation (OpenAPI/Swagger).
• Writeunit and integration tests to ensure code quality and reliability.
• Debug and resolve complex production issues efficiently.
  
  

Required Skills:

• Strong proficiency inNode.js with TypeScript (Express.js or NestJS).
• Experience withMongoDB, schema design, and ORMs (Mongoose, Prisma).
• Experience withRedis (pub/sub, caching) and job queues (BullMQ/RabbitMQ).
• Familiarity withAWS services: EC2, S3, CloudWatch, SES, Lambda.
• Dockerized microservices and CI/CD pipelines (GitHub Actions, or similar).
• Knowledge ofauthentication & authorization (JWT, OAuth2, role-based access).
• Basic Logging & monitoring experience (Winston, Pino, Prometheus/Grafana).
• Unit & integration testing experience (Jest, Mocha, Vitest).
• Knowledge of email compliance tools (SpamAssassin, DKIM/SPF/DMARC) is a plus.
  
  

Experience:

• 3–5 years in backend development.

Prior experience inSaaS applications, high-traffic APIs, or campaign/marketing platforms is preferred.