Senior Java Engineer – Digital Transformation

Company: RE Partners
Apply for the Senior Java Engineer – Digital Transformation
Location: London
Job Description:

Who We Are: We are a fast growing business and technology consultant company co-founded in 2019. We offer a custom-tailored, white-glove engineering service fit for our clients, because a digital transformation is more than just technology. With a successful track record of being a preferred vendor for Fortune 500 companies and as a trusted partner for some of the industry’s leading companies, our global talent has helped many clients achieve their goals. We are seeking an experienced and opinionated Java Developer to join our high-performing engineering team, working on l ow latency , high-throughput systems in the payments processing domain. This hybrid role is based in the UK or US 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 Core Java and SpringBoot. 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. Drive performance tuning, fault tolerance, and observability improvements across services.

5+ years of experience in Core Java development with a focus on performance and memory optimization.~ Experience working with XML and message parsing/transformation.~ Strong cloud experience with AWS services such as ECS, EKS, Lambda, S3, etc.~ Prior experience in Payments Processing, financial services, or banking systems.~ Exposure to container security and performance tuning on OpenShift. Join us in shaping the future of business technology consulting and transforming the way organizations thrive in a digital world. As a diverse, woman-owned global business, we pride ourselves on keeping talent happy – our 7% attrition rate speaks volumes. Bring your talented friends along and earn a referral bonus

Equal Opportunity Employer: 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….

Posted: May 23rd, 2026