Backend Engineer - (NestJS, Node.js, TypeScript, Prisma ORM)

Reposted Yesterday
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Ramakka Block, Jaya Mahal, Bangalore, Karnataka, IND
In-Office
Mid level
AdTech • Marketing Tech
The Role
Build and maintain scalable backend services and REST APIs with NestJS, Node.js, TypeScript, PostgreSQL, Prisma, Redis, Azure, and Docker. Responsibilities include backend architecture, database optimization, authentication and authorization, caching, asynchronous processing, third-party integrations, observability, automated testing, deployment, troubleshooting, documentation, and collaboration with frontend and cross-functional teams.
Summary Generated by Built In

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

Skills Required

  • Strong proficiency in Node.js, TypeScript, and modern JavaScript
  • Hands-on experience with NestJS, 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
  • Hands-on experience with PostgreSQL, Prisma ORM, schema design, migrations, transactions, indexing, and query optimization
  • Experience with Redis caching, TTL management, cache invalidation, and performance optimization
  • Understanding of database consistency, connection pooling, and efficient data-access patterns
  • 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 with pagination, filtering, API versioning, retries, and backward compatibility
  • Experience with Microsoft Azure or equivalent cloud platforms 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
  • 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
  • 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 and ability to review and validate generated code
  • Familiarity with monorepos, shared libraries, and CI/CD workflows

dentsu Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about dentsu and has not been reviewed or approved by dentsu.

  • Parental & Family Support — Paid parental leave at full pay and caregiver supports (including backup care) are emphasized as standout elements. Feedback suggests family-oriented benefits are a strong part of the package.
  • Leave & Time Off Breadth — Flexible or unlimited PTO, extensive paid holidays, and a year-end office closure are established components. Feedback suggests time-off policies are generous and add meaningful flexibility.
  • Retirement Support — A large, established 401(k) plan with employer matching is clearly documented. Feedback suggests retirement benefits feel competitive and straightforward.

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The Company
HQ: Minato
15,492 Employees

What We Do

We are dentsu. We team together to help brands predict and plan for disruptive future opportunities and create new paths to growth in the sustainable economy. We know people better than anyone else and we use those insights to connect brand, content, commerce and experience, underpinned by modern creativity. We are the network designed for what’s next

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