Senior Backend Developer (Node.js | TypeScript | Azure | NX | Fastify)

Company Description

dMACQ is a leading enterprise-grade platform designed to support workplace digitization and enable organizations to transition to a paperless environment. Trusted by over 300 customers globally, including Adidas, WPP, Tata AMC, and Hindalco, dMACQ offers a comprehensive solution for Enterprise Document Management, Forms, and Workflow Automation. The platform utilizes innovative technologies such as AI, ML, and Robotic Process Automation (RPA) to streamline data processing, enhance collaboration, and optimize business processes. With over 75 years of combined industry experience and third-party security certifications, dMACQ delivers robust and secure content services tailored to meet modern digital transformation needs.

Role Description

We are seeking a Senior Backend Developer with expertise in Node.js and TypeScript (MUST HAVE). You’ll work on scalable APIs built with Fastify and NX, hosted on Azure App Service with Cosmos DB as our primary data store.This is for a full-time role based in Mumbai. In this position, you will be responsible for designing, developing, and maintaining backend systems and APIs, implementing efficient and scalable code, and integrating with cloud-based services on Azure. The role demands a mix of hands-on development, architectural decision-making, and mentorship. You will collaborate closely with cross-functional teams, participate in code reviews, and contribute to designing system architecture, ensuring best practices in software development.

Tech Stack

Backend : Node.js, TypeScript, Fastify, NX

Database : Azure Cosmos DB

CI / CD : GitHub Actions

Hosting : Azure App Service

Unit Testing :  Vitest

E2E  Testing  : Playwright

Version Control : Git, Github

Key Responsibilities

Architect and develop scalable APIs using Node.js, Fastify, and NX

Build and optimize Azure Functions, App Services, and Cosmos DB solutions

Design efficient data models for courses, assessments, and analytics

Integrate with external systems like gaming servers, content providers, and payment gateways

Implement secure authentication and authorization (MSAL / Azure AD)

Conduct code reviews and provide actionable feedback on :

Code structure, readability, and maintainability

Logic flaws, performance bottlenecks, and memory issues

Correct use of design patterns and architectural principles

Time and space complexity of critical functions

Test coverage, modularization, and adherence to coding standards

Write comprehensive automated test cases using Vitest and Playwright.

Mentor junior developers to improve their problem-solving and code quality

Collaborate on CI / CD (GitHub Actions) pipelines and release processes

Required Skills

4–6 years of backend experience with Node.js and TypeScript IS MUST

Strong command of Azure serverless services (Functions, Event Grid, App Service)

Expertise in Cosmos DB or other NoSQL databases

Experience with Nx monorepos, microservices, and API design

Excellent understanding of software architecture, clean code, and testing (Vitest and Playwright)

Proven ability to review, refactor, and elevate others’ code effectively

Ideal Candidate Traits

Experience mentoring or reviewing code for other developers

Deep understanding of TypeScript internals

Strong grasp of system design and scale

Passion for clean, testable, and performant code

Comfortable balancing speed of delivery with code quality

THIS IS AN IMMEDIATE OPENING AND CANDIDATES WHO CAN JOIN ON OR BEFORE DECEMBER 1ST, 2025 WILL BE GIVEN PREFERENCE.

Company :  dMACQ Pvt. Ltd.

Location :  Vidhya Vihar, Mumbai (work from office)

Shift timing : 11 : 30 AM – 9 : 00 PM