Job Summary:

We are looking for a Back End Developer to develop and maintain scalable backend services, RESTful APIs, and frontend applications using contemporary technologies. The ideal candidate should have a robust foundation in JavaScript/TypeScript, Node.js, React/Next.js, and databases, with an interest in API integrations, secure application development, debugging, and delivering reliable software solutions.

Key Responsibilities:
Build and maintain RESTful APIs across our Node.js/Express and NestJS backend services
Implement and support integrations with payment gateways (PayU, Razorpay, PhonePe, Easebuzz, JioPay) and card networks (Mastercard, Visa)
Work with relational databases (MySQL/PostgreSQL via Sequelize/TypeORM) and document stores (MongoDB via Mongoose)
Build frontend features using React/Next.js (Redux, Ant Design/MUI)
Implement webhook- and callback-driven integrations with third-party financial APIs
Handle sensitive financial and PII data using appropriate encryption and security practices
Participate in code review,



testing, and CI/CD-based deployments (GitHub Actions, PM2)
Debug and resolve production issues across distributed services
Must be an individual contributor with a high sense of responsibility and ownership

Required Qualification:
Bachelor's/Master's in Computer Science, Engineering, or related field
Strong fundamentals in Data Structures, Algorithms, Object-Oriented Design, and Databases (relational + NoSQL)
Proficiency in JavaScript/TypeScript, with hands-on experience in Node.js (Express and/or NestJS)
Familiarity with React or Next.js
Understanding of REST API design, authentication (OAuth/JWT), and basic encryption concepts
Good problem-solving and algorithmic skills
Prior exposure to the payments/fintech domain is a robust plus
Familiarity with Python is a plus for cross-stack adaptability, though not required for our current stack

📌 Back End Developer Gurugram (India)
🏢 PropelGo
📍 India