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BAE Systems

Defense contractor delivering aerospace, cyber, space

Application Support Practitioner

IT Service Desk & End User SupportConfirmed live in the last 24 hours
Full-time£51.7k

About the Job

Requirements

  • Hands-on experience with Red Hat Linux environments and Oracle-based systems, including troubleshooting, performance analysis, and maintaining system stability in complex enterprise environments.
  • Familiarity with integration technologies including MuleSoft, application programming interfaces, SQL Server Integration Services, and microservices architectures, with an understanding of how distributed systems interact and exchange data across enterprise platforms.
  • A structured and methodical problem-solving approach, using logical analysis and root-cause investigation to diagnose issues and deliver sustainable resolutions in high-pressure environments.

Responsibilities

  • Investigate, diagnose, and resolve application incidents within agreed service-level agreements, retaining ownership through resolution and engaging development teams and third-party vendors as needed to minimise business impact.
  • Monitor application health, performance, and availability; perform regular patching, upgrades, and preventative maintenance to ensure stability and security.
  • Provide second-line support to end users, communicate clearly, resolve issues promptly, and build and maintain a knowledge base for service continuity and operational resilience.
  • Provide second-line support across Air Maintenance & Support Systems applications, ensuring consistent service performance and alignment with operational requirements.
  • Identify trends, recurring issues, and optimisation opportunities, and drive service improvements, process enhancements, and increased efficiency across the application support function.

About the Company

BAE Systems

Defense contractor delivering aerospace, cyber, space

BAE Systems provides defense, aerospace, and security solutions for governments, including aircraft, submarines, land systems, cybersecurity, and space technologies. It designs, manufactures, integrates, and sustains complex systems that combine platforms, sensors, software, and secure communications for end-to-end defense capabilities. The company differentiates itself by operating across air, sea, land, cyber, and space and by growing through strategic acquisitions to win large government programs, such as contracts with the U.S. Department of Defense. Its goal is to help protect nations and critical infrastructure by delivering trusted, long-lasting defense technologies and services.

Company size
10,001+
Company stage
IPO
Headquarters
London, United Kingdom
Founded
1971

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