Backend Engineer – SaaS platform

. Maintain and enhance backend services powering the SaaS platform .

Posted 10/15/2026full-timeRemote • IndiaMid-LevelSeniorWebsite

Tools & technologies

AWSEC2GrafanaJavaScriptJestMicroservicesMochaMongoDBNode.jsPrometheusRabbitMQRedisTypeScript

Key responsibilities & impact

Maintain and enhance backend services powering the SaaS platform
Ensure uptime, scalability, and performance of APIs handling campaign generation, template storage, and credit-based billing
Optimize MongoDB queries, indexes, and caching strategies for high-performance APIs
Implement and manage Redis, job queues, and asynchronous workflows
Monitor and maintain AWS infrastructure: EC2, S3, CloudWatch, Lambda, SES
Implement security best practices, including API authentication, rate-limiting, GDPR compliance, and email data handling
Maintain API versioning and documentation using OpenAPI/Swagger
Write unit and integration tests to ensure code quality and reliability
Debug and resolve complex production issues efficiently

What you’ll need

Strong proficiency in Node.js with TypeScript (Express.js or NestJS)
Experience with MongoDB, schema design, and ORMs (Mongoose, Prisma)
Experience with Redis (pub/sub, caching) and job queues (BullMQ/RabbitMQ)
Familiarity with AWS services: EC2, S3, CloudWatch, SES, Lambda
Dockerized microservices and CI/CD pipelines (GitHub Actions, or similar)
Knowledge of authentication and authorization (JWT, OAuth2, role-based access)
Basic logging and monitoring experience (Winston, Pino, Prometheus/Grafana)
Unit and integration testing experience (Jest, Mocha, Vitest)
3–5 years in backend development
Prior experience in SaaS applications, high-traffic APIs, or campaign/marketing platforms is preferred
Knowledge of email compliance tools (SpamAssassin, DKIM/SPF/DMARC) is a plus

Comp & perks