Java Developer (With AWS)

Role :- Java Developer with AWS ExperienceLocation :- Berkeley Heights, NJ(5 days onsite in a week)ContractDuration : 12+ Months with extension Job Description :-Design, develop, and optimize backend services for card payments and transaction systems, ensuring low latency, fault tolerance, and multi-region resiliency.• Build high-throughput APIs and microservices using modern Java frameworks (Spring Boot, Reactor).• Collaborate closely with product, architecture, and SRE teams to evolve Vision Next / VisionPLUS services for cloud-native, real-time scalability.• Use AWS services (ECS, Lambda, RDS, ) to architect resilient, secure, and observable applications.• Write efficient algorithms for transaction routing, settlement, reconciliation, or fraud-detection modules.• Contribute to system design sessions and architecture decisions, applying deep reasoning to scalability trade-offs, consistency models, and data partitioning.• Evaluate and optimize application throughput, concurrency handling, and API lifecycle management across multi-region clusters. • Implement DevOps and CI/CD automation for build, test, and deployment pipelines (GitHub Actions, Jenkins, or CodePipeline).• Mentor junior engineers, conduct code reviews, and drive engineering excellence through reusable design patterns.Required Qualifications:-Bachelor's or Master's degree in Computer Science or related field.• 7+ years of backend engineering experience in payments, fintech, or high-transaction enterprise systems.• Strong proficiency with Java / Spring Boot, data structures, algorithms, and system-level design principles.• Solid understanding of AWS core services and architectural best practices for scalable distributed systems.• Experience with multi-region, active-active, or near-real-time architectures for payment or settlement systems. • Deep debugging, profiling, and performance optimization skills in concurrent, distributed environments.• Strong analytical reasoning and data-driven problem-solving mindset.