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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Java Developer - **Company:** RE Partners Consulting LLC - **Location:** New York, NY, United States - **Experience:** Expert - **Salary:** $130,000.0 - $150,000.0 - **Contract:** Permanent contract - **Skills:** Kubernetes Security, Java (Programming Language), Application Programming Interfaces (APIs), Amazon Web Services, Amazon S3, Cloud Computing, Program Optimization, DevOps, Fault Tolerance, Enterprise Messaging Systems, MongoDB, NoSQL, OpenShift, Payment Gateway, Performance Tuning, Systems Development Life Cycle, RabbitMQ, Red Hat Enterprise Linux, Software Engineering, SQL Databases, Spring-boot, AWS Lambda, Backend, Kubernetes, Low Latency, ISO 20022 Standard, Real Time Data, Apache Kafka, Data Management, Restful APIs, Microservices - **Published:** August 2, 2026 - **Apply:** https://www.careerbuilder.com/job-details/principal-java-developer-ny--79b096e5-b3df-40ed-a255-985a3ce8fa0b ## About the Role * 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. Nice to Have: * Familiarity with messaging systems (Kafka, RabbitMQ, etc.) * Prior experience in Payments Processing, financial services, or banking systems. * Exposure to container security and performance tuning on OpenShift. * Knowledge of payment gateways, ISO 20022, or SWIFT formats., AWS Lambda, Amazon Simple Storage Service (S3), Amazon Web Services (AWS), Apache Kafka, Application Programming Interface (API), Architectural Services, Banking Services, Best Practices, Cloud Computing, Communication Skills, Consulting, Data Management, DevOps, Financial Services, Financial Transactions, High Throughput, ISO (International Organization for Standardization), International Business, Java, Memory Hardware, Mentoring, Messaging Technology, Microservices, MongoDB, NoSQL, Payment Processing, Performance Tuning/Optimization, Process Improvement, Quality Assurance, REST (Representational State Transfer), RabbitMQ, Red Hat Linux Operating System, SQL (Structured Query Language), Scalable System Development, Software Engineering, Team Player, Time Management ## Description We are seeking an experienced and opinionated Principal Java Engineer to join our high-performing engineering team, working on low latency, high-throughput systems in the payments processing domain. This hybrid role is based in the NY and offers the opportunity to build scalable, real-time services using modern technologies.If you're passionate about performance, have strong Core Java and SpringBoot expertise, and thrive in a collaborative yet opinionated engineering culture, we want to hear from you., * 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. ## Related Videos - [Leveraging Real time data in FSIs](https://www.wearedevelopers.com/videos/806-leveraging-real-time-data-in-fsis) - [Kubernetes Native Java](https://www.wearedevelopers.com/videos/383-kubernetes-native-java) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Enterprise-Cloud-Native - Fast-Paced Development & Deployment in a Highly Secure Banking Environment](https://www.wearedevelopers.com/videos/671-enterprise-cloud-native-fast-paced-development-deployment-in-a-highly-secure-banking-environment) - [NoSQL Data Modeling for Front-end Developers](https://www.wearedevelopers.com/videos/297-nosql-data-modeling-for-front-end-developers) ## Related Articles - [Top 10 Java Libraries](https://www.wearedevelopers.com/magazine/364-top-10-java-libraries) - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for) - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)