RE Partners · 3 weeks ago
Senior Java Developer (Low-Latency Payments Systems)
New York, United States
Full-time
Onsite
Senior Level
5+ years expRE Partners is a fast growing business and technology consultant company co-founded in 2019, seeking an experienced Java Developer to join their high-performing engineering team. The role focuses on designing and optimizing low-latency, high-throughput backend systems in the payments processing domain using Core Java and SpringBoot.
ConsultingFinanceManagement Consulting
Hiring Manager
Vladimir Tešin
Responsibilities
Design, develop, and optimize low-latency, high-throughput backend systems using Core Java and SpringBoot
Build and maintain RESTful APIs and microservices that power secure payment workflows
Work with XML-based messaging standards and protocols commonly used in financial transactions
Deploy, monitor, and scale applications in Red Hat OpenShift and AWS cloud environments
Integrate with MongoDB and other NoSQL/SQL datastores for real-time data management
Collaborate with DevOps, Product, and QA teams to ensure production-grade solutions
Participate in architectural discussions, advocate for best practices, and provide mentorship to peers
Drive performance tuning, fault tolerance, and observability improvements across services
Qualification
Required
5+ years of experience in Core Java development with a focus on performance and memory optimization
Proficient in SpringBoot and microservice-based architecture
Proven experience with low-latency, high-throughput applications (sub-millisecond response times a plus)
Experience working with XML and message parsing/transformation
Hands-on experience deploying applications on Red Hat OpenShift and/or Kubernetes
Strong cloud experience with AWS services such as ECS, EKS, Lambda, S3, etc
Solid understanding of MongoDB and NoSQL design patterns
Prior experience in Payments Processing, financial services, or banking systems
Strong communication skills and a bias toward action and opinionated design decisions
Preferred
Familiarity with messaging systems (Kafka, RabbitMQ, etc.)
Exposure to container security and performance tuning on OpenShift
Knowledge of payment gateways, ISO 20022, or SWIFT formats
Collaborative, fast-paced, and engineering-driven culture
Emphasis on engineering autonomy, architectural decision-making, and clean code
Benefits
Referral bonus
Company
RE Partners
RE Partners is a technology consulting firm
201-500 employees
Funding
Current Stage
Growth StageLeadership Team
Valerie Kogan
Co-Founder, CEO
Alex Gikher
Co-Founder, Chief Revenue Officer
Company data provided by crunchbase