Backend Developer Node.js / NestJS (Gurugram)

Backend Developer Node.js / NestJS

Company: NuSwipe Technology Pvt. Ltd.

Job Location: Gurugram, Haryana, India

Employment Type: Full-time

Experience Required: 3 - 4 years

Were Hiring: Backend Developer Node.js / NestJS

Company: NuSwipe Technology Pvt. Ltd.

Employment Type: Full time

Work Mode: On-site

Location: Aerocity, New Delhi / Gurugram

Candidates may choose either office location based on their convenience.

Experience Required: 3-4 Years

About NuSwipe

NuSwipe Technology Pvt. Ltd. is a technology-driven company operating across digital gift cards, corporate rewards, loyalty, incentives and corporate gifting solutions.

We are building scalable B2B and consumer-facing technology platforms to support digital rewards, transactions, integrations and corporate engagement programs.

About the Role

We are looking for an experienced Backend Developer with strong hands-on expertise in Node.js, NestJS, TypeScript, PostgreSQL and REST APIs. The ideal candidate should have experience building secure, scalable and transaction-intensive backend systems and be comfortable working with third-party APIs, databases, payments and production environments. You will work closely with our Technical Lead / Full Stack Architect, frontend and mobile development teams.

Key Responsibilities

Develop and maintain backend applications using Node.js, NestJS and TypeScript

Build scalable and secure REST APIs

Integrate third-party APIs, webhooks and external services

Work extensively with PostgreSQL, including schema design, queries, indexing and optimisation

Build reliable order, payment and transaction workflows

Implement authentication, authorization and RBAC

Handle retries, timeouts, idempotency and duplicate transaction scenarios

Use Redis for caching and background-processing requirements

Write clean, reusable and production-ready code

Participate in code reviews, debugging and performance optimisation

Collaborate with React/Next.js and Flutter developers

Maintain API documentation using Swagger/OpenAPI

Troubleshoot staging and production issues

Required Skills

Node.js Minimum 3+ years of strong hands-on experience preferred

NestJS & Type ScriptExpress.jsPostgreSQL / SQLStrong understanding of database design, relationships, transactions, indexing and query optimisationREST APIs & third-party API integrations

Webhooks and API failure handlingJWT / Authentication / Authorization / RBACRedis / Caching

Git & collaborative development workflows

Unit and integration testing

Strong debugging and problem-solving skills

Good to Have : AWS / Cloud, Docker, BullMQ / RabbitMQ / AWS SQS, Payment Gateway Integrations, CI/CD, Microservices / Event-Driven Architecture, Logging & monitoring tools

Preferred Industry Experience

Candidates with experience in FinTech, Digital Gift Cards / Vouchers, Payments, Digital Wallets, Rewards & Loyalty, E-commerce or transaction-heavy platforms will be highly preferred.

Experience with voucher APIs, payment systems, reconciliation or high-volume third-party integrations will be an added advantage.

What Were Looking For

Someone who is genuinely hands-on, understands backend systems beyond basic CRUD APIs, can independently own assigned modules, thinks carefully about transaction reliability and data consistency, and can work effectively under the guidance of a Technical Lead / Architect.

Aerocity, New Delhi / Gurugram .