Job Description:
JOB DESCRIPTION: BACKEND ENGINEER
Tech Stack: NestJS | Node.js | TypeScript | Prisma ORM | PostgreSQL | Redis | Microsoft Azure | Docker
Total Exp : 6 - 8 Years
Notice Period : Immediate Joiners
Work Timings : 06.00 P.M. to 03.00 A.M
ROLE OVERVIEW
We are looking for a Backend Engineer with strong experience in NestJS, Node.js, TypeScript, and PostgreSQL to build scalable, secure, and high-performance backend systems. The ideal candidate should have a solid understanding of backend architecture, API design, database optimization, caching, asynchronous processing, cloud services, and production reliability.
KEY RESPONSIBILITIES
* Design, develop, and maintain scalable backend services and REST APIs using NestJS, Node.js, and TypeScript. * Build modular backend architectures using NestJS modules, controllers, services, dependency injection, guards, interceptors, and middleware. * Design and optimize database schemas, queries, relationships, indexes, and transactions using PostgreSQL and Prisma ORM. * Implement request validation, centralized error handling, consistent API responses, and API documentation using Swagger/OpenAPI. * Develop secure authentication and authorization mechanisms, including JWT, RBAC, and permission-based access control. * Implement caching strategies using Redis and asynchronous processing using messaging queues and background jobs. * Integrate third-party APIs and external systems, handling authentication, rate limits, retries, timeouts, and failures. * Optimize API performance, database access, resource utilization, and application scalability. * Containerize applications using Docker and deploy backend services using Microsoft Azure. * Implement structured logging, monitoring, distributed tracing, health checks, and other observability practices. * Write automated tests, participate in code reviews, troubleshoot production issues, and maintain technical documentation. * Collaborate with frontend engineers and other stakeholders to define API contracts and deliver end-to-end features.
REQUIRED SKILLS
Core Technologies and Architecture
* Strong proficiency in Node.js, TypeScript, and modern JavaScript. * Hands-on experience with NestJS is mandatory, including modules, dependency injection, guards, interceptors, pipes, and exception filters. * Strong understanding of REST API design, asynchronous programming, modular architecture, SOLID principles, and clean code practices.
Database and Caching
* Hands-on experience with PostgreSQL, Prisma ORM, schema design, migrations, transactions, indexing, and query optimization. * Experience with Redis for caching, TTL management, cache invalidation, and performance optimization. * Understanding of database consistency, connection pooling, and efficient data-access patterns.
API Development and Security
* Experience implementing DTOs, request validation, centralized error handling, and consistent API contracts. * Familiarity with class-validator, class-transformer, and Swagger/OpenAPI. * Understanding of authentication, authorization, JWT, OAuth 2.0, RBAC, API security, rate limiting, and secure secrets management. * Experience handling pagination, filtering, API versioning, retries, and backward compatibility.
Cloud, Messaging, and Integrations
* Experience with Microsoft Azure or equivalent cloud platforms, with the ability to work with Azure services in production. * Familiarity with Azure App Service, Azure Container Apps, Azure Database for PostgreSQL, Azure Service Bus, Azure Key Vault, and Azure Cache for Redis. * Understanding of messaging queues, background jobs, event-driven architecture, retries, and failure recovery. * Experience integrating third-party APIs and handling asynchronous workflows.
Performance and Engineering Practices
* Understanding of Node.js performance, concurrency, caching, database optimization, and scalability. * Familiarity with structured logging, metrics, distributed tracing, health checks, and monitoring tools such as Application Insights or OpenTelemetry. * Hands-on experience with Docker, Git, CI/CD, and automated testing using Jest or equivalent tools. * Experience writing unit and integration tests and debugging application issues across development and production environments.
PREFERRED QUALIFICATIONS
* Experience with microservices, event-driven architecture, domain-driven design, and clean architecture. * Familiarity with advanced messaging patterns, idempotency, dead-letter queues, and distributed system reliability. * Experience with GraphQL, webhooks, WebSockets, API gateways, or enterprise system integrations. * Familiarity with Kubernetes, infrastructure as code, and Azure Functions. * Experience building enterprise applications, SaaS platforms, multi-tenant systems, and role-based access control. * Experience with AI-assisted development tools such as Claude Code for implementation, debugging, refactoring, and testing, with the ability to review and validate generated code. * Familiarity with monorepos, shared libraries, and CI/CD workflows.
IDEAL CANDIDATE
* Strong problem-solving, analytical, and debugging skills. * Writes clean, modular, secure, maintainable, and strongly typed code. * Understands the reasoning behind architectural, database, and performance decisions. * Takes ownership of features from design and development through testing and deployment. * Communicates effectively and collaborates with frontend engineers, architects, and cross-functional teams.
Experience: Mid-level to Senior, depending on technical depth and demonstrated ownership.
Core Stack: NestJS, Node.js, TypeScript, Prisma ORM, PostgreSQL, Redis, REST APIs, Microsoft Azure, Docker, Git.
Location:
DGS India - Bengaluru - Manyata N1 Block
Brand:
Merkle
Time Type:
Full time
Contract Type:
Permanent