Application Developer

CIMCON Lighting; Patna; On-site; INR 1,200,000 - 2,200,000; Full time

Job summary

Quantela is seeking an experienced backend developer to design, build, and maintain scalable Node.js services. You will implement REST APIs using Express.js or Fastify, architect microservices, and optimise PostgreSQL databases for performance.

The role requires collaboration with frontend, QA, DevOps, and stakeholders to deliver secure, reliable backend solutions for government-facing platforms. Experience with Docker/Kubernetes, Redis or message queues, and e-Governance integrations will be

Qualifications

• Minimum 3–8 years of backend development experience.
• Proficient in Node.js, Express.js or Fastify.
• Strong knowledge of PostgreSQL and SQL.
• Experience designing REST APIs and microservices.
• Familiarity with Git and SDLC practices.
• Exposure to Docker and Kubernetes is a plus.
• Experience with Redis, Kafka, RabbitMQ, or BullMQ is an advantage.
• Government/IGR domain exposure is desirable.

Responsibilities

• Design, develop, and maintain scalable backend applications using Node.js.
• Develop RESTful APIs with Express.js and/or Fastify.
• Design and implement microservices-based applications following scalable architecture principles.
• Design, develop, and optimise PostgreSQL databases, including queries, indexing, transactions, and performance tuning.
• Build secure, reliable, and high-performance APIs and backend services.
• Integrate backend services with external APIs, third-party systems, and e-Governance platforms.
• Develop reusable components and services following clean architecture and coding standards.
• Implement authentication, authorisation, data validation, and API security best practices.
• Troubleshoot production issues, perform root-cause analysis, and implement fixes.
• Collaborate with cross-functional teams including frontend developers, QA engineers, DevOps teams, and business stakeholders.

Skills

Node.js

Express.js

PostgreSQL

REST APIs

Microservices

Git & SDLC

Debugging & problem-solving

Docker

Kubernetes

Tools

Docker

Kubernetes

Redis

Kafka

RabbitMQ

BullMQ

Job description

About Quantela

We are a technology company that offers outcomes business models. We empower our customers with the right digital infrastructure to deliver greater economic, social, and environmental outcomes for their constituents.

When the company was founded in 2015, we specialised in smart cities technology alone. Today, working with cities and towns, utilities, and public venues, our team of 280+ experts offers a vast array of outcomes business models through technologies like digital advertising, smart lighting, smart traffic, and digitized citizen services.

We pride ourselves on our agility, innovation, and passion to use technology for a higher purpose. Unlike other technology companies, we tailor our offerings (what we can digitise) and the business model (how we partner with our customers to deliver that digitisation) to drive measurable impact where our customers need it most.

Over the last several months alone, we have served customers to deliver outcomes like increased medical response times to save lives, reduced traffic congestion to keep cities moving, and created new revenue streams to tackle societal issues like homelessness.

We are headquartered in Billerica, Massachusetts, in the United States, with offices across Europe and Asia.

The company has been recognised with the World Economic Forum’s ‘Technology Pioneers’ award in 2019 and CRN’s IoT Innovation Award in 2020.

For the latest news and updates, please visit us at www.quantela.com

Overview of the role

The ideal candidate should have strong experience in Node.js, Express.js/Fastify, PostgreSQL, REST APIs, and Microservices architecture. Experience in the Land Records / IGR (Inspector General of Registration) domain will be an added advantage.

Roles and Responsibilities

• Design, develop, and maintain scalable backend applications using Node.js.
• Develop and maintain RESTful APIs using Express.js and/or Fastify.
• Design and implement microservices-based applications following scalable architecture principles.
• Design, develop, and optimise PostgreSQL databases, including queries, indexing, transactions, and performance tuning.
• Build secure, reliable, and high-performance APIs and backend services.
• Integrate backend services with external APIs, third-party systems, and e-Governance platforms.
• Develop reusable components and services following clean architecture and coding standards.
• Implement authentication, authorisation, data validation, and API security best practices.
• Troubleshoot production issues, perform root-cause analysis, and implement appropriate fixes.
• Monitor and optimise application performance, scalability, and database operations.
• Participate in code reviews, technical discussions, and architectural decisions.
• Follow Git-based development practices and established software development lifecycle processes.
• Collaborate with cross-functional teams including frontend developers, QA engineers, DevOps teams, and business stakeholders.
• Contribute to continuous improvement of backend development practices, application reliability, and observability.

Desired Skills/Background

• 3–8 years of relevant backend development experience.
• Strong hands‑on experience with Node.js.
• Good experience with Express.js and/or Fastify.
• Strong knowledge of PostgreSQL and SQL.
• Proven experience in developing and consuming REST APIs.
• Good understanding of Microservices Architecture and distributed systems.
• Strong understanding of asynchronous programming, promises, events, and Node.js best practices.
• Good understanding of authentication, authorisation, API security, and data validation.
• Good knowledge of Git and software development lifecycle practices.
• Strong debugging, analytical, and problem‑solving skills.
• Experience with Redis, Kafka, RabbitMQ, or BullMQ is an advantage.
• Exposure to Docker and Kubernetes is preferred.
• Experience with CI/CD pipelines is an advantage.
• Understanding of logging, monitoring, and application observability is preferred.
• Domain experience in Land Records, Property Registration, Registration & Stamps, or IGR systems is highly desirable.
• Knowledge of government registration workflows and property/land record processes is an advantage.
• Exposure to modules such as Property Registration, Mutation, Encumbrance Certificate, Certified Copy, Stamp Duty, e-Stamping, Land Revenue, or related workflows will be preferred.
• Experience integrating applications with government APIs or e-Governance platforms is an added advantage.