Full-stack Developer

Key Responsibilities

• Build and maintain web applications for UPI Pay-In, collections, payouts and reconciliation
• Develop merchant, bank and admin dashboards with real-time transaction views
• Build secure REST APIs for clients, merchants and partner banks
• Integrate partner bank APIs for UPI, IMPS, NEFT, payouts and settlement files
• Integrate AEPS, DMT and BBPS services through sponsor bank and BBPS operating unit APIs
• Build agent / retailer portal and mobile-friendly interfaces for AEPS, DMT and BBPS
• Handle callbacks, webhooks, status checks and transaction retry logic
• Build automated reconciliation modules for bank statements, NPCI and settlement files
• Develop MIS reports, ledgers, wallet and commission modules
• Implement onboarding and KYC flows for merchants, agents and clients
• Apply security standards: encryption, request signing, IP whitelisting and role-based access
• Support data security requirements from RBI, NPCI and partner bank audits
• Optimise database queries and system performance for high-volume transactions
• Write clean, tested and documented code; take part in code reviews
• Coordinate with the outsourced tech partner on handover, releases and production issues
• Support production monitoring, incident fixes and root-cause analysis