The Role
Design and implement server-side JVM distributed systems for financial services using Java/Scala and JVM stacks. Focus on actor-based concurrency, reactive programming, in-memory grids, messaging, REST services, TDD, CI/CD, and Agile delivery while collaborating with clients to deliver production-quality, multithreaded real-time architectures.
Summary Generated by Built In
Lab49 has an opportunity available for a Java Developer to lead work on complex and challenging projects to drive transformative change for our top- tier Financial Services clients. Operating in an Agile environment, the Java Developer will have strong server-side experience to work on next- generation financial systems.
Responsibilities
- Build distributed systems that deal with actor-based concurrency, reactive programming, distributed in-memory data grids, messaging that goes beyond plain JMS as we fully expect to participate in shaping the future of financial technology stacks
- Work on server side JVM-based projects
- Hit the ground running with the typical Java or Scala JVM ecosystem stack (Spring and its subprojects, Guice, Guava, Maven, Hibernate, Jetty, etc.)
- Retool continuously as the technology landscape changes every few years
- Be able to pick up other technologies along the whole development stack, including front-end and other non-JVM ecosystems
- Work with our clients in iterative, project-based engagements, where self-organizing and focused teams move quickly to build innovative solutions for the client
- Have the desire to collaborate, and like sharing and learning from your colleagues
- Be passionate about delivering quality code
- Demonstrate experience writing commercial-grade software applications
- Have a deep understanding of multithreading and real-time software architectures
- Have an abiding interest in and competence for solving real-world business problems (with technology as an enabler)
- Be determined to succeed despite obstacles and challenges, as well as a positive attitude favoring achievement of goals over open-ended investigation
Required Skills and Experience
- 8+ years of recent hands-on experience in designing and coding complex, enterprise, commercial-grade applications in core, server-side Java, ideally Java 8+
- Experience building RESTful Web Services
- Test-driven development, which includes Unit and End-to-End Testing
- Experience with Agile software development (e.g. SCRUM or KANBAN)
- Experience in a CI/CD environment
- Bachelors or Masters in Computer Science, Engineering, Physics, Math, or related work experience
- Experience with, knowledge of, and strong demonstrated interest in, global financial markets and financial products.
Skills Required
- 8+ years hands-on experience designing and coding enterprise server-side Java applications (Java 8+)
- Experience building RESTful Web Services
- Deep understanding of multithreading and real-time software architectures
- Experience with actor-based concurrency and reactive programming
- Experience with distributed in-memory data grids and advanced messaging (beyond plain JMS)
- Familiarity with JVM ecosystem tools (Spring and subprojects, Guice, Guava, Maven, Hibernate, Jetty)
- Test-driven development including Unit and End-to-End testing
- Experience working in Agile environments (SCRUM or KANBAN)
- Experience in a CI/CD environment
- Bachelors or Masters in Computer Science, Engineering, Physics, Math, or equivalent experience
- Experience with and interest in global financial markets and financial products
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The Company
What We Do
Serving Luxembourg's IT needs since 2002, ION Group has focused its activities on 3 pillars: ION Home: IT services for home users. - Computer repair and maintenance - Network Setup - Internet Setup - Email and Hosting Services ION Pro: Maintenance for small and medium businesses - Server maintenance and setup - Network configuration and security - Workstation - Server and services hosting and housing ION Development - Website design and development - Custom application development (Web, Mobile, iOS, Android) - OpenSource software modifications








