Full-Time

Application Support Practitioner

Posted on 8/20/2026

Deadline 9/2/26
BAE Systems

BAE Systems

10,001+ employees

Defense contractor delivering aerospace, cyber, space

Compensation Overview

£51.7k/yr

Samlesbury, Preston, UK + 1 more

More locations: Warton, Carnforth, UK

Hybrid

Three days on-site per week required, with occasional travel to RAF bases within the UK.

Category
IT & Security (1)
Required Skills
Distributed Systems
Microservices
REST APIs
Oracle

Get referred to BAE Systems

See people who can refer or advise you

Requirements
  • Hands-on experience supporting Red Hat Linux environments and Oracle-based systems in complex enterprise landscapes.
  • Experience with troubleshooting, performance analysis, and system stability.
  • Familiarity with MuleSoft, application programming interfaces, SQL Server Integration Services, and microservices architectures.
  • 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 techniques.
Responsibilities
  • Investigate, diagnose, and resolve application incidents within agreed service-level agreements, taking ownership through resolution and engaging development teams and third-party vendors when necessary.
  • Monitor application health, performance, and availability, and perform patching, upgrades, and preventative maintenance.
  • Provide second-line support to end users and maintain a knowledge base supporting service continuity and operational resilience.
  • Deliver second-line support across Air Maintenance and Support Systems applications.
  • Identify trends, recurring issues, and optimisation opportunities to drive service improvements, process enhancements, and increased efficiency across application support.

BAE Systems delivers defense, aerospace, and security solutions for governments and critical infrastructure. It designs, builds, integrates, and sustains complex systems—aircraft, submarines, land platforms, ships, sensors, software, and cyber assets—often as end-to-end programs for customers like the DoD. It differentiates itself by operating across air, sea, land, cyber, and space and pursuing scale through acquisitions to win large government contracts. Its goal is to help nations stay secure by advancing dependable technologies, including autonomous systems and artificial intelligence, supported by a strong order backlog and long-term services.

Company Size

10,001+

Company Stage

IPO

Headquarters

London, United Kingdom

Founded

1971

Get referred to BAE Systems

See people who can refer or advise you

Simplify Jobs

Simplify's Take

What believers are saying

  • July 29, 2026, BAE won a £5.9 billion Dreadnought submarine contract.
  • June 16, 2026, BAE won $535 million for M109A7 Paladins and carriers.
  • August 2026 DPA funding and $135 million U.S. factory upgrades expand microelectronics and munitions capacity.

What critics are saying

  • March 2026 FBI contract loss triggered 119 Vienna layoffs, proving customer concentration risk.
  • EnComm Aviation filed a £120 million UK High Court lawsuit on May 1, 2026.
  • Any delay at Barrow, Austin, or Hudson hits 2030s submarine, munition, and missile schedules.

What makes BAE Systems unique

  • August 2026 backlog reached £84.0bn, reflecting unmatched scale across submarines, missiles, and vehicles.
  • BAE Systems uniquely bridges UK sovereign nuclear deterrence and U.S. Army production lines.
  • Its radiation-hardened chips, Endura processors, and satellite buses create hard-to-replace mission electronics.

Help us improve and share your feedback! Did you find this helpful?

Benefits

Health Insurance

401(k) Retirement Plan

401(k) Company Match

Flexible Work Hours

Employee Discounts

Wellness Program

Mental Health Support

Pension Scheme

Employee Share Plans

Flexible Working

Enhanced Annual Leave Allowance

Employee Assistance Programme

Cycle2work

Shopping Discounts

Annual Incentive

Growth & Insights and Company News

Headcount

6 month growth

-24%

1 year growth

-24%

2 year growth

-23%
Business Wire
Aug 18th, 2026
BAE Systems appoints Michael Loeffler as vice president of supply chain

BAE Systems, Inc. has appointed Michael Loeffler as vice president of supply chain, effective 24 August 2026. Loeffler will report to President and CEO Tom Arseneault and join the senior leadership team. In his new role, Loeffler will oversee supply chain strategy, execution and programme delivery across all business units. He succeeds Brad Pelachyk, who now serves as senior vice president and chief global supply chain officer for BAE Systems plc. Loeffler brings over 20 years of aerospace and defence experience, most recently serving as vice president of global supply chain and logistics at Bell. He previously held supply chain positions at L3Harris, GE Aviation and Boeing, and served as a submariner in the US Navy.

PR Newswire
Jul 20th, 2026
BAE Systems batteries power hybrid-electric flight demo at Farnborough Airshow

BAE Systems announced its advanced battery system powered the first flight test of GE Aerospace's hybrid-electric propulsion demonstrator at Farnborough International Airshow. The modified Saab 340 B test aircraft showcased potential for significant fuel savings and reduced emissions in commercial aviation. BAE Systems designed, developed, and integrated the complete battery energy storage system, including a battery management system using cutting-edge lithium-ion batteries. These provide more power without adding extra weight to the aircraft. "Our expertise in advanced battery technology and safety-critical battery management system design was crucial to enabling GE Aerospace to achieve this landmark moment," said Trudy Palmer, director of Airborne Power Systems at BAE Systems. The flight test marks a significant step towards commercialising hybrid-electric propulsion systems for narrow-body aircraft.

PR Newswire
Jul 14th, 2026
BAE Systems unveils Project Intuity fighter pilot helmet tech at Farnborough Airshow

BAE Systems will unveil its next generation fighter pilot helmet technology at Farnborough International Airshow from 20–24 July. The demonstrator, called Project Intuity, integrates advanced capabilities designed to reduce pilot workload and improve situational awareness in data-rich environments. The system will enable pilots to command drone fleets by filtering and presenting critical information within their natural field of view. Project Intuity serves as a modular testbed combining emerging and proven technologies, with capabilities including display optics and eye tracking. BAE Systems currently has more than 1,000 helmet-mounted displays operational across 10 nations. Development will continue at the company's Rochester, UK facilities, with the system evolving alongside future mission requirements.

Investegate
Jul 9th, 2026
Holding(s) in Company | Company Announcement | Investegate

Comprehensive details of regulatory and non regulatory announcements from FTSE 100, 250, AIM and techMARK quoted companies

ExecutiveGov
Jul 8th, 2026
BAE Systems secures $16M to expand radiation-hardened chip production for defence applications

BAE Systems secured $16 million in Defense Production Act Title III funding from the Department of Defense to expand production of radiation-hardened microelectronics for military applications. The investment will restore BAE Systems' RH45 Storefront, a manufacturing resource for 45-nanometer radiation-hardened integrated circuit technology. According to the Defense Department, the funding aims to reinforce the US industrial base for specialised semiconductors designed to withstand radiation in military environments. Michael Cadenazzi, assistant secretary of defense for industrial base policy, said radiation-hardened microelectronics are essential for the department's missile, space, and strategic systems. The restored capability will provide government and industry customers access to standardised technologies for designing and manufacturing custom radiation-hardened chips. The award is one of five Defense Production Act projects funded in fiscal 2026, totaling $102.6 million combined.