MERN Stack Backend Developer (4-Month On-Site Contract Accommodation

Company: S-Markitech Digital Solutions

Location: Amalapuram, Andhra Pradesh, India

Job Type: Full-time, 4-Month Contract

Accommodation: Provided

Work Mode: On-site only

Preferred Candidates: From Andhra Pradesh and Telangana only

Job Description

S-Markitech Digital Solutions is hiring a MERN Stack Backend Developer to support our product: a smart WiFi recharge and cashback ecosystem. You'll design APIs and business logic for wallet systems, QR code payments, UPI withdrawals, and admin dashboards. The position is based on-site in Amalapuram, with accommodation provided.

If you’re passionate about scalable systems and real-time payment solutions, we’d love to hear from you. Key Responsibilities

Develop and maintain scalable RESTful APIs using Node.js and Express.js.

Integrate Firebase Authentication (OTP-based login).

Design and manage MongoDB databases for users, merchants, transactions, and ads.

Implement payment systems including cashback, UPI, and QR-based flow.

Handle merchant wallet logic and withdrawal systems.

Collaborate with the Flutter team for mobile app integration. Required Qualifications

1–3 years of backend experience with the MERN stack (MongoDB, Express.js, Node.js).

Familiarity with Firebase Auth and OTP verification flows.

Strong understanding of REST API design and security (JWT tokens).

Knowledge of QR code and UPI payment integration is a plus.

Familiar with version control tools like Git. What We Offer

Full-time 4-month contract

Free accommodation in Amalapuram

Hands-on experience with a scalable digital payment product

Fast-paced and learning-oriented work environment