Principal Java Developer

RE Partners is a fast growing business and technology consultant company co-founded in 2019. We offer a custom-tailored 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 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 Spring Boot expertise, and thrive in a collaborative yet opinionated engineering culture, we want to hear from you.

Key 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 Open Shift and AWS cloud environments.
• Integrate with Mongo
  
  DB and other No
  
  SQL/SQL data stores for real-time data management.
• Collaborate with Dev Ops, 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.

Required

Skills & Experience:

• 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 Open Shift 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, Rabbit
  
  MQ, etc.)
• Prior experience in Payments Processing, financial services, or banking systems.
• Exposure to container security and performance tuning on Open Shift.
• Knowledge of payment gateways, ISO 20022, or SWIFT formats.
• Emphasis on engineering autonomy, architectural decision-making, and clean code

The base salary range for this position is 130.000$
-150.000$ annually. This range represents the good‑faith minimum and maximum salary the Company believes it would pay for this role at the time of this posting.

Actual compensation will be determined based on factors such as experience, skills, qualifications, geographic location, internal equity, and business needs. This position may also be eligible for additional compensation, including bonuses, commissions, and/or benefits, as applicable.

Join Our Global Team: We invite you to apply for the position at RE Partners. 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.