Java Support Engineer
Bristol - 3 days on site, 2 days at home
Up to £80,000 DOE
iO Associates are working with an SME who provides specialist technical consultancy to the National Security and Defence organisations across the UK.
We are looking to speak to individuals who are eligible to/current have active SC/DV clearance, with Java development experience who enjoys mission-facing work.
In this role, you will be responsible for the deploy and maintain a new cross-domain service in their customer environment. On top of the basic operational skills that are needed to deploy, monitor and maintain the microservice based solution, we need someone who can, when required, interpret dashboards and system logging to diagnose complex problems as the system is integrated with external data-feeds.
The suitable candidate will be required to build representative data subsets and provide a detailed description of any failure scenarios to allow the remote development team to reproduce the problem and provide a fix.
Responsibilities:
- Develop high-quality 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 any issues with system build, deployment or start-up through the use of relevant log messages.
- Work with platform team to manage Docker / Kubernetes system resources and networking to determine and resolve bottlenecks or networking issues.
- Generate and Manage system SSL certificates.
- Manage PostgreSQL database credentials and password rotations including the updating of deployment secrets.
- Interpret dashboards and system logging to diagnose complex problems as the system is integrated with external data-feeds.
- Monitor and perform daily checks of the operational system.
Key Skills:
- Keen problem solver and critical thinker with the ability to reason about problems, test hypotheses and make appropriate risk decisions.
- Ability and willingness 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 of event-driven integration with MQ messaging (RabbitMQ or similar AMQP solution).
- Linux command line, administration and shell scripting.
- Relational Database Management understanding.
Desirable Skills:
- Experienced in working with Docker Swarm / Kubernetes.
- Knowledge of common elements such as Containers, Pods, Services, Routes, Deployments etc.
- 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 to keep the infrastructure patched and updated.