REMOTE (INDIA): Backend Engineer- SaaS platform

Marrina Decisions

IndiaremotePosted 6 days ago

Skill Required

Backend-EngineerNodeJS-DeveloperSoftware-EngineerSaaS-Backend-EngineerBackend-Platform-EngineerSaaS-Platform-EngineerBackend-Platform-DeveloperBackend DeveloperPlatform EngineerGitHub ActionsMicroservicesCD pipelinesTypeScriptPrometheusObservabilityRabbitMQsimilar)Node.jssecurityExpressOpenAPIMongoDBTestNGdesignGitJestOAuthRedisCI/CDAPIsUnityAWSJWTandFulltime

Key highlights

3–5 years in backend development
Strong proficiency in Node.js with TypeScript

Role overview

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.
Optimize MongoDB queries, indexes, and caching strategies for high-performance APIs.
Implement and manage Redis, job queues, and async workflows.
Monitor and maintain AWS infrastructure: EC2, S3, CloudWatch, Lambda, SES.
Implement security best practices: API authentication, rate-limiting, GDPR compliance, email data handling.
Maintain API versioning and documentation (OpenAPI/Swagger).
Write unit and integration tests to ensure code quality and reliability.
Debug and resolve complex production issues efficiently.

Requirements

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 & authorization (JWT, OAuth2, role-based access).
Basic Logging & monitoring experience (Winston, Pino, Prometheus/Grafana).
Unit & integration testing experience (Jest, Mocha, Vitest).
3–5 years in backend development.

Nice to have

Knowledge of email compliance tools (SpamAssassin, DKIM/SPF/DMARC) is a plus.
Prior experience in SaaS applications, high-traffic APIs, or campaign/marketing platforms is preferred.