Senior Backend Developer - Payment Gateway / FinTech

Hiring: Senior Backend Developer – Payment Gateway / FinTech

Company: Rayudu Group
Experience: 4–7+ Years
Job Type: Full-Time
Work Location: Anantapur, Andhra Pradesh

About the Role

We are looking for an experienced and highly skilled Senior Backend Developer with strong Payment Gateway / FinTech experience to join our team at Rayudu Group.

The ideal candidate should have hands-on experience in developing or integrating secure payment systems and should understand payment workflows involving Cards, UPI, Wallets, Net Banking, and other digital payment methods.

The candidate will play a key role in building and maintaining secure, scalable, and reliable payment solutions.

Key Responsibilities

• Design, develop, and maintain secure and scalable backend services for payment systems.
• Develop and integrate Payment Gateway APIs and third-party payment services.
• Work on payment methods including Cards, UPI, Wallets, and Net Banking.
• Handle complete payment transaction workflows, including:
• Payment initiation
• Payment verification
• Success, failure, and pending transactions
• Refunds
• Webhooks and callbacks
• Settlements and reconciliation
• Build and maintain secure REST APIs.
• Implement secure authentication, encryption, API security, and transaction validation.
• Handle webhook signature verification and secure payment callbacks.
• Prevent duplicate transactions using proper idempotency and transaction management.
• Work on high-performance and high-availability backend systems.
• Troubleshoot payment failures and production issues.
• Collaborate with frontend, product, QA, and other technical teams.
• Maintain proper technical documentation and follow secure coding practices.

Required Skills & Experience

• 4–7+ years of experience in Backend Development.
• Proven hands-on experience in Payment Gateway / FinTech / Digital Payments projects.
• Strong experience with at least one backend technology such as:
• Java / Spring Boot
• Node.js
• Python
• Other relevant backend technologies
• Strong knowledge of REST APIs and third-party API integrations.
• Experience with Webhooks and Callback APIs.
• Good understanding of payment transaction lifecycles.
• Experience handling refunds, settlements, and reconciliation.
• Knowledge of MySQL, PostgreSQL, or other relational databases.
• Experience with Git, Postman, and API documentation tools.
• Strong debugging and problem-solving skills.

Preferred Skills

• Experience with UPI, Cards, Wallets, Net Banking, or International Payments.
• Experience with multiple payment gateways.
• Knowledge of Microservices architecture.
• Experience with high-volume transaction systems.
• Understanding of PCI-DSS and GDPR compliance requirements.
• Knowledge of secure API practices, encryption, HMAC/signature verification, and token-based authentication.
• Experience in handling production-level payment systems.
• Experience in FinTech, Banking, or Digital Payment platforms is highly preferred.

What We Are Looking For

We are specifically looking for a candidate who has personally worked on Payment Gateway or Payment Processing projects.

Candidates should be able to clearly explain their experience with:

Payment APIs | Cards | UPI | Wallets | Net Banking | Webhooks | Payment Verification | Refunds | Settlements | Reconciliation | Payment Security

Important:

Generic backend development experience alone is not sufficient. Candidates with actual hands-on Payment Gateway or FinTech experience will be given preference.

Application Details

Email: [email protected]
Contact: 9848322289

Pay: ₹25,000.00 - ₹30,000.00 per month

Work Location: In person