Java Developer – Payment Architect

Job Summary

We are seeking an experienced Java Developer - Payment Architect to design, develop, and architect secure, scalable, and high-performance payment solutions. The ideal candidate will have extensive experience in Java-based enterprise applications, payment processing systems, and modern microservices architecture. This role involves collaborating with cross‑functional teams to build payment platforms that support high transaction volumes while ensuring compliance, reliability, and security.

Key Responsibilities

• Design and architect end-to-end payment processing solutions.
• Develop and maintain Java-based payment applications using Spring Boot and related frameworks.
• Design scalable microservices and event-driven architectures.
• Integrate with payment gateways, banking systems, card networks, and third-party financial services.
• Build secure APIs for payment initiation, authorization, settlement, reconciliation, and reporting.
• Ensure compliance with PCI DSS, PSD2, ISO 8583, ISO 20022, EMV, and other applicable payment standards.
• Optimize application performance for high-volume, low-latency transaction processing. Collaborate with product managers, business analysts, Dev Ops, QA, and security teams.
• Conduct architecture reviews, code reviews, and mentor development teams.
• Implement monitoring, logging, fault tolerance, and disaster recovery strategies.
• Evaluate emerging technologies and recommend architectural improvements.

Required Skills

• Strong expertise in Java (Java 11/17 or later).
• Hands‑on experience with Spring Boot, Spring Cloud, Spring Security, and Hibernate/JPA.
• Deep understanding of microservices architecture and RESTful APIs.
• Experience with messaging technologies such as Kafka, Rabbit MQ, or Active MQ.
• Strong knowledge of relational and No SQL databases (Oracle, Postgre SQL, My SQL, Mongo DB).
• Experience with Docker, Kubernetes, and container orchestration.
• Knowledge of CI/CD pipelines using Jenkins, Git Hub Actions, Git Lab CI, or Azure Dev Ops.
• Familiarity with cloud platforms such as AWS, Azure, or Google Cloud.
• Strong understanding of software design patterns and distributed systems.
• Experience with caching technologies such as Redis or Hazelcast.

Payment Domain Expertise

• Credit and debit card processing
• UPI, ACH, SEPA, SWIFT, and RTP payment systems
• Merchant acquiring and issuing
• Authorization, clearing, and settlement
• Reconciliation and dispute management
• Fraud detection and risk management
• Tokenization and digital wallets
• ISO 8583 and ISO 20022 messaging
• PCI DSS compliance and payment security best practices

Preferred Qualifications

• Bachelor's or Master's degree in Computer Science, Information Technology, or a related field.
• Experience with high-availability and mission‑critical financial systems.
• Knowledge of Domain‑Driven Design (DDD) and event sourcing.
• Experience with observability tools such as Prometheus, Grafana, ELK, or Splunk.
• Familiarity with Agile/Scrum development methodologies.