Senior Java Engineer - Spring Backend, Secure, Hybrid

Kx Systems, Inc.; Greater London; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Private healthcare package

Employee Assistance Programme

Enhanced maternity and paternity

Wellness Days

Volunteer Days

Job summary

KX Systems, Inc. is seeking a Senior/Intermediate Java Engineer to join its R&D team in a hybrid London/Newry/Belfast role. Focus on backend and middleware development with Java 17 and Spring, integrating with kdb+ in a distributed, high-availability system.

The incumbent will implement authentication/authorisation, security best practices, and contribute to CI/CD with DevSecOps, while deploying on Tomcat and ensuring robust test coverage.

Qualifications

• 8+ years of professional Java development experience.
• Experience with Java 17 and Spring Framework in a distributed, high-availability system.
• Secure coding practices and web security knowledge (OWASP Top 10).

Responsibilities

• Develop, maintain, and optimise Spring-based web applications and REST APIs using Java 17.
• Integrate backend services with real-time kdb+ environments.
• Implement authentication (SAML/LDAP) and secure authorisation (RBAC/ABAC).
• Collaborate with DevSecOps on CI/CD pipelines and automated testing.
• Deploy and tune applications on Apache Tomcat.

Skills

Java 17

Spring Framework

Distributed systems

RBAC/ABAC authentication

Web security (OWASP)

Apache Tomcat

Maven/Nexus

GitLab CI/CD

kdb+ integration

Tools

Maven/Nexus

GitLab CI/CD

Apache Tomcat

Job description

KX Systems, Inc. is seeking a Senior/Intermediate Java Engineer to join its R&D team in a hybrid London/Newry/Belfast role. Focus on backend and middleware development with Java 17 and Spring, integrating with kdb+ in a distributed, high-availability system.

The incumbent will implement authentication/authorisation, security best practices, and contribute to CI/CD with DevSecOps, while deploying on Tomcat and ensuring robust test coverage.