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Senior Java Developer with GemFire

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Description

Ciklum is looking for a Senior Java Developer with GemFire to join our team full-time in the US .

We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.

About the role:

We are seeking an experienced Senior Java Developer to join the engineering team building Project Everest, a next-generation platform transitioning from a monolithic PBM architecture (RxIQ) to a scalable, microservices-based solution tailored for government programs.

In this role, you will be responsible for implementing the GemFire architecture, writing distributed Java services, and integrating with core system components. You will work alongside product owners, architects, and DevOps to deliver low-latency, high-availability transactional services on top of the Apache Geode (GemFire) in-memory data grid.

Responsibilities

  • Implement and maintain Java-based microservices that leverage GemFire for distributed caching and in-memory data operations
  • Contribute to the design, development, and deployment of caching strategies, regions, and query models using OQL
  • Collaborate with architects on data partitioning, consistency models, and replication strategies
  • Perform performance tuning including JVM optimization, GC profiling, and low-latency transaction processing
  • Build robust failover and recovery mechanisms (HA/DR) within the data grid and system layers
  • Write unit/integration tests and participate in peer reviews to ensure code quality and traceability

Requirements

  • 7+ years of experience in Java and Spring Framework development (including Spring Boot, Spring Data)
  • Hands-on expertise in GemFire / Apache Geode (configuration, region setup, OQL query development)
  • Strong understanding of object-oriented programming (OOP) and distributed systems concepts:
    • Partitioning, replication, consistency models, data locality
  • Solid grasp of design patterns and microservice architecture principles
  • Experience with performance tuning (GC, heap, CPU/memory analysis)
  • Familiarity with HA/DR concepts (replication, recovery strategies)

Desirable

  • Working knowledge of SQL and ORM frameworks (Hibernate, JPA)
  • Exposure to scripting languages: Groovy, Python
  • Familiarity with containerized environments: Kubernetes, Docker
  • Observability stack: Grafana, Prometheus, Pulse
  • Front-end or integration experience: JavaScript, .NET (minimal)

What's in it for you

  • Strong community: Work alongside top professionals in a friendly, open-door environment
  • Growth focus: Take on large-scale projects with a global impact and expand your expertise
  • Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications
  • Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies
  • Care: Healthcare, Basic Life Insurance, Short and Long-term disability insurance according to the Company’s Benefit Plans

About us:

At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress. In the US, Ciklum is growing fast—inviting experienced professionals to lead digital transformation alongside Fortune 500 clients. Be part of a company where innovation and impact go hand in hand.

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Explore, empower, engineer with Ciklum!

Experiences of tomorrow. Engineered together

Interested already?

We would love to get to know you! Submit your application. Can’t wait to see you at Ciklum.

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