Java Backend Developer – Payment Gateway

4 days ago

Remote, India OKDA LIFESTYLE Full time ₹ 9,00,000 - ₹ 12,00,000 per year

Job Title: Java Backend Developer – Payment Gateway

Experience Required: 3–6 years

Location: Remote / Hybrid

Job Type: Full-Time

About Us:

We are looking for an experienced Java Backend Developer to join our growing fintech engineering team. You will be working on core backend services powering our payment gateway platform, handling high-volume transactions with a focus on security, scalability, and reliability.

Key Responsibilities

Backend Development

  • Design, develop, and maintain Java-based microservices for payment processing.
  • Build and optimize RESTful APIs, SOAP APIs, supporting JSON, XML, and ISO8583 message formats for merchant integrations and internal services.
  • Implement core transaction flows: authorization, capture, settlement, refunds.

System Architecture & Performance

  • Ensure backend systems are scalable, secure, and fault-tolerant.
  • Work on transaction monitoring, reconciliation, and settlement services.
  • Optimize database queries, indexing, and caching for high performance.

Integration & Compliance

  • Integrate with card schemes (Visa/Mastercard), banks, and alternative payment methods.
  • Ensure compliance with PCI-DSS, AML, and regional regulatory guidelines.
  • Collaborate with DevOps to deploy services on cloud environments (AWS/Azure).

Collaboration & Support

  • Partner with product managers, QA testers, and frontend developers to deliver features end-to-end.
  • Support production issues, ensuring high availability and reliability of services.

Requirements

  • 3–6 years of backend development experience in Java (Spring Boot, JPA, Hibernate).
  • Strong experience with REST APIs, JSON, and microservices architecture.
  • Proficiency in SQL/NoSQL databases (PostgreSQL, MySQL, MongoDB, Redis).
  • Familiarity with messaging queues (Kafka, RabbitMQ, etc.).
  • Solid understanding of payment gateway flows and transaction lifecycles.
  • Experience with cloud deployment (AWS/Azure) and CI/CD pipelines.
  • Strong problem-solving skills and ability to thrive in a fast-paced fintech environment.

Nice to Have

  • Knowledge of cryptographic methods for secure payments.
  • Exposure to KYC/AML systems and compliance workflows.
  • Experience in high-availability distributed systems.

What We Offer

  • Opportunity to work on cutting-edge fintech solutions in the MENA region.
  • Fast-paced environment with exposure to real-time, high-scale payment systems.
  • Competitive salary, career growth opportunities, and a supportive team culture.

How to Apply:

Interested candidates can apply by sending their resume and portfolio to with the subject line: Application for Java Backend Developer – Payment Gateway

Job Types: Full-time, Part-time, Freelance, Internship

Application Question(s):

  • How many years of experience do you have with Java (Spring Boot, JPA, Hibernate)?

Work Location: Remote

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