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About the Role

Seeking an experienced Principal Java Engineer to join a high-performing team, working on low latency, high-throughput systems in the payments processing domain. This hybrid role offers the opportunity to build scalable, real-time services using modern technologies. Passionate about performance, with strong Core Java and Spring Boot expertise, and thriving in a collaborative yet opinionated engineering culture.

Responsibilities

Design, develop, and optimize low-latency, high-throughput backend systems using Java.
Build and maintain RESTful APIs and microservices that power secure payment workflows.
Work with 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.
Drive architectural changes, advocate for best practices, and provide mentorship to peers.
Drive performance tuning, fault tolerance, and observability improvements across services.

Requirements

10+ years of experience in Java development with a focus on performance and memory optimization.
Proficient in Mongo, Spring and microservice-based architecture.
Proven experience with low-latency, high-throughput applications (sub-millisecond response times a plus).
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.
Strong communication skills and a bias toward action and opinionated design decisions.

Skills

Java
Core Java
Spring Boot
RESTful APIs
Microservices
Messaging systems
Red Hat OpenShift
AWS
MongoDB
NoSQL
SQL
Kubernetes
ECS
EKS
Lambda
S3
Kafka
RabbitMQ
ISO 20022
SWIFT

Location

Work Type

Hybrid

Experience Level

Principal
Senior

About the Company

RE Partners is a woman-owned global business focused on shaping the future of business technology consulting and transforming how organizations thrive in a digital world.
We pride ourselves on keeping talent happy, evidenced by a low 7% attrition rate.
We encourage referrals and offer a bonus for bringing talented friends.

Equal Opportunity

We are an equal opportunity employer and welcome applications from all qualified individuals regardless of race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, disability, or veteran status.