Senior Backend Engineer

Senior Backend Engineer

Experience:

Location:

Contract Type:

Work Time:

Overview

We are seeking a highly experienced Senior Backend Engineer with 8–10 years of expertise in designing and building scalable backend systems. The ideal candidate will be proficient in Node.js (NestJS framework preferred) and TypeScript, with strong experience in GraphQL API design and implementation. This role requires architectural expertise across monolithic and microservices-based systems, proficiency in PostgreSQL, and hands-on experience with Azure cloud architecture, including Container Apps.

The engineer will also work on Azure OpenAI integrations, OCR pipelines, and event-driven real-time systems such as WebSocket connections. You will play a key role in performance tuning, scaling applications, ensuring high unit test coverage (90–95%), and delivering enterprise-grade solutions through collaboration with cross-functional teams.

Key Responsibilities

• Develop and maintain backend applications using

  Node.js (NestJS) and TypeScript

  .
• Design and implement

  GraphQL APIs

  and multiple system integrations.
• Architect, optimize, and scale backend systems on

  Azure Container Apps

  .
• Implement

  Azure OpenAI integrations

  and

  OCR pipelines

  .
• Work on both

  monolithic

  and

  microservices-based architectures

  .
• Design and integrate

  event-driven, real-time systems

  with

  WebSocket connections

  .
• Ensure

  90–95% unit test coverage

  for all code developed.
• Conduct performance tuning, scalability improvements, and debugging.
• Collaborate with teams to deliver robust, secure, and enterprise-level solutions.

Requirements

• 8–10 years of backend engineering experience.
• Strong expertise in

  Node.js (NestJS framework preferred)

  .
• Proficiency in

  TypeScript

  with a focus on scalable architecture.
• Hands-on experience in

  GraphQL API design, implementation, and integrations

  .
• Strong knowledge of

  PostgreSQL

  and

  Azure cloud (Container Apps, scaling, performance tuning)

  .
• Experience with

  Azure OpenAI integrations

  and

  OCR pipelines

  .
• Proven background in

  monolithic and microservices architectures

  .
• Experience with

  event-driven systems, real-time processing, and WebSockets

  .
• Ability to deliver maintainable code with

  90–95% unit test coverage

  .
• Strong problem-solving, debugging, and communication skills.

Skills & Requirements

• Programming:

  Node.js, NestJS, TypeScript

• API & Integration:

  GraphQL, API Design

• Databases:

  PostgreSQL

• Cloud & Infrastructure:

  Azure Architecture, Azure Container Apps, Scaling, Performance Tuning

• AI & Data Processing:

  Azure OpenAI, OCR Pipelines

• Architecture:

  Monolithic, Microservices

• Systems:

  Event-driven Systems, Real-time Systems, WebSockets

• Quality & Testing:

  Unit Testing (90–95% coverage), Debugging