Java Support Specialist

3 weeks ago


Bristol, Bristol, United Kingdom iO Associates - UKEU Full time
Job Opportunity

Java Support Specialist

iO Associates is working with a leading SME in the National Security and Defence sector, providing specialist technical consultancy to organisations across the UK.

We are seeking a skilled Java Support Specialist to join our team, with experience in Java development and a passion for mission-facing work.

The successful candidate will be responsible for deploying and maintaining a new cross-domain service in our customer environment, working closely with our platform team to manage Docker/Kubernetes system resources and networking.

Key Responsibilities:

  • Develop high-quality Java code.
  • Write and update Java end-to-end and performance tests to ensure optimal system performance.
  • Run end-to-end and smoke tests to ensure releases are working before deploying through the environments.
  • Create representative XML data to reproduce error scenarios.
  • Identify issues with system build, deployment, or start-up through log messages.
  • Work with the platform team to manage system resources and networking.
  • Generate and manage system SSL certificates.
  • Manage PostgreSQL database credentials and password rotations.
  • Interpret dashboards and system logging to diagnose complex problems.
  • Monitor and perform daily checks of the operational system.

Key Skills:

  • Keen problem solver and critical thinker.
  • Ability to learn and take on new responsibilities.
  • Understanding of Java Spring Boot micro-service development.
  • Familiarity with Java JUnit Testing.
  • Knowledge of XML/XSD.
  • Experience with event-driven integration and MQ messaging.
  • Linux command line, administration, and shell scripting.
  • Relational Database Management understanding.

Desirable Skills:

  • Experience with Docker Swarm/Kubernetes.
  • Knowledge of common elements such as Containers, Pods, Services, Routes, Deployments.
  • Ability to understand and update Terraform deployments.
  • Atlassian Tools and CI/CD systems.
  • Basic understanding of Docker and containerisation.
  • Ability to manage and update Ansible playbooks.


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