Senior Full Stack Web Developer

We're Hiring: Senior Full Stack Web Developer (Next.js \+ NestJS)

About the Role

One21 Communications Private Limited is building a next\-generation B2B/B2C Fintech Platform focused on Recharge Services, BBPS Bill Payments, Wallet Solutions, UPI Collections \& Payouts, and Travel Booking Services.

We are looking for an experienced Senior Full Stack Web Developer who can lead the development of scalable, secure, and high\-performance web applications using modern technologies.

Position

Senior Full Stack Web Developer

Employment Type

Full\-Time (On\-Site)

Location

321, Antilia Business Hub, Near Nana Chiloda, Nana Chiloda, Ahmedabad – 382330

Technology Stack

Next.js

React.js

TypeScript

NestJS

Node.js

PostgreSQL

Redis

AWS

Docker

Key Responsibilities

Design and develop scalable web applications using Next.js and NestJS.

Build Customer, Retailer, Distributor, and Admin Portals.

Integrate Payment Gateway, UPI, BBPS, Recharge, and Travel APIs.

Develop Wallet Management, Transaction Management, and Reconciliation Systems.

Implement secure authentication, authorization, and role\-based access controls.

Ensure application performance, reliability, security, and scalability.

Collaborate with product and business teams to deliver robust fintech solutions.

Required Skills \& Experience

5\+ years of Full Stack Development experience.

Strong expertise in Next.js, React.js, TypeScript, and NestJS.

Hands\-on experience with PostgreSQL and REST API development.

Experience integrating Payment Gateways and third\-party APIs.

Knowledge of AWS deployment and DevOps practices.

Strong understanding of secure coding practices and scalable architecture.

Prior experience in Fintech, Recharge, BBPS, Wallet, or Payment platforms is highly preferred.

Preferred Qualifications

Experience with UPI Collect and UPI Payout integrations.

Experience implementing BBPS solutions.

Knowledge of Wallet, Ledger, and Reconciliation systems.

Experience with Redis, Queues, and Microservices Architecture.

Familiarity with high\-volume transaction processing systems.

What You Will Build

Customer Portal

Retailer \& Distributor Portal

Admin Dashboard

Wallet Management System

Transaction Management System (TMS)

Transaction Reconciliation System (TRS)

Recharge \& Bill Payment Platform

Travel Booking Platform Integration

How to Apply

One21 Communications Private Limited

Email: **one21communication@gmail.com**

Phone: 8866223268

Qualified candidates with relevant fintech development experience are encouraged to apply.

Pay: From ₹40,000\.00 per month

Work Location: In person