Backend Java Developer

• Investigate, diagnose, and resolve live system defects and production incidents in line with SLAs.
• Analyse logs, metrics, and traces to identify root causes of complex technical issues.
• Design, develop, and deploy stable, well-tested fixes using Java and related frameworks.
• Collaborate with 2nd Line (AMS) Operations, QA, and Feature Teams as appropriate to triage and prioritise defects.
• Implement hotfixes and patches to production environments safely, following change management protocols.
• Support post-incident reviews, contributing to preventative actions and service improvement.
• Maintain clear documentation of incident investigations, defect resolutions, and code changes.
• Monitor system health and performance using existing observability and alerting tools.
• Contribute to improving the reliability and maintainability of Back End systems and services.
• Provide technical expertise and mentoring in diagnosing and resolving Back End issues.

Essential Skills & Qualifications:

• Proven experience as a Back End Developer with a strong focus on Java.
• Experience supporting live production environments and resolving incidents or defects.
• Strong debugging, problem-solving, and root cause analysis skills.
• Solid understanding of RESTful APIs, microservices, and event-driven systems.
• Hands-on experience with Postgres/SQL, Active MQ, and Liquibase.
• Experience using JUnit, Mockito, and Wiremock for testing code fixes and regression testing.
• Proficiency in version control systems such as Git and working knowledge of CI/CD pipelines.
• Experience with containerization (Docker) and orchestration (Kubernetes, ideally AKS).
• Knowledge of Azure services such as Function Apps, Azure DevOps, and monitoring tools.
• Ability to work collaboratively in fast-paced agile or DevOps environments.
• Strong communication and documentation skills, especially for incident reporting and defect logs.

Desirable Skills & Experience:

• Experience with Microsoft Azure cloud services (eg, Azure Functions, Azure Storage, Azure App Service).
• Knowledge of ITIL incident and problem management processes.
• Knowledge of Kubernetes for container orchestration and management.
• Familiarity with containerization technologies such as Docker or Kubernetes.
• Knowledge of CI/CD tools and practices.
• Understanding of microservices architecture and development.
• Knowledge of ITIL incident and problem management processes
• Familiarity with CQRS, Event Sourcing, and Pub/Sub architectures.
• Experience working with cloud-native and microservice-based architectures.