Job Title: Senior Java Developer 

Job Location: Charlotte, NC - Hybrid

NEED LOCAL

Interview: 2 rounds and final (2nd) round is F2F.

Domain: Finance / Payments

Job Description: 

We are seeking a highly experienced Senior Java Developer with strong expertise in Spring Boot, Microservices, Kafka, and MongoDB, ideally with a background in Payments or Financial Services. The ideal candidate will be responsible for designing and developing scalable, secure, and high-performance applications that support mission-critical payment processing systems.

Key Responsibilities

• Design, develop, and maintain Java-based microservices using Spring Boot with a strong focus on modularity, scalability, and performance.
• Build event-driven distributed systems using Kafka, including topics, partitions, consumer groups, and streaming pipelines.
• Work with MongoDB to design schemas, implement queries, optimize performance, and ensure data integrity.
• Develop secure and fault-tolerant components for payment processing, including transaction workflows, settlements, reconciliation, and real-time validations.
• Integrate microservices with internal and external payment gateways, APIs, and third-party financial systems.
• Participate in architecture discussions, code reviews, and contribute to best practices, standards, and design patterns.
• Troubleshoot production issues and provide Level-3 support for high-availability systems.
• Ensure compliance with financial regulations, security standards, and audit requirements.

Required Skills & Experience

• 10+ years of hands-on experience in Core Java, OOPs, multithreading, collections, and concurrency.
• Strong experience with Spring Boot, Spring Cloud, Spring Security, and REST API development.
• Deep understanding of Microservices Architecture, service discovery, load balancing, API gateways, and resilience patterns (Circuit Breaker, Retry, Bulkhead).
• Hands-on experience with Kafka (producers, consumers, schema registry, Kafka Streams).
• Strong experience with MongoDB (schema design, indexes, aggregation framework, performance tuning).
• Experience in developing applications within payments, banking, or financial services domain.
• Familiarity with secure coding practices, PCI-DSS guidelines, OAuth 2.0/JWT, encryption, and tokenization.
• Knowledge of CI/CD pipelines, Git, Jenkins, Docker, Kubernetes (good to have).
• Experience working in Agile environments with cross-functional teams.

Nice to Have

• Experience with cloud platforms (AWS, GCP, or Azure).
• Exposure to Redis, ELK, OpenShift, GraphQL, or gRPC.
• Experience with high-throughput, low-latency system design.