Application Support Practitioner

Job Title: Application Support Practitioner

Location: Warton/Samlesbury, 3 days per week on site depending on business needs, with occasional travel to RAF bases within the UK.

We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this particular role

Salary: £51,722+ (DOE)

Who we are:

Join BAE Systems and you’ll be part of something bigger. As a valued member of our global colleague network, you’ll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You’ll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow, shaping a safer future, for all of us.

From the depths of the ocean, to the far reaches of space, there’s no limit to where a career at BAE Systems could take you.

Job Description:

You’ll be responsible for the day-to-day support, maintenance, and continuous improvement of business-critical applications within the Maintenance and Support Systems Competency Centre (M&SSCC). This includes triaging and prioritising incidents and service requests to meet SLAs, while proactively monitoring application performance and availability to prevent disruption.

You’ll work closely with development teams, third-party suppliers, and end users to ensure swift resolution of issues, drive service improvements, and maintain high levels of system reliability and user satisfaction.

Core duties:

• Rapidly investigate, diagnose, and resolve application incidents within agreed SLAs, taking ownership through to resolution and engaging development teams and third-party vendors where necessary to minimise business impact

• Proactively monitor application health, performance, and availability, leveraging strong technical understanding of underlying operating systems and integrations. Deliver regular patching, upgrades, and preventative maintenance to ensure stability and security

• Provide high-quality second-line support to end users, ensuring clear communication and timely resolution of issues. Build and maintain a robust knowledge base to support long-term service continuity and operational resilience

• Deliver reliable second-line support across a portfolio of Air Maintenance & Support Systems applications, ensuring consistent service performance and alignment with operational requirements

• Identify trends, recurring issues, and opportunities for optimisation, driving service improvements, process enhancements, and increased efficiency across the application support function

Essential Skills:

• Considerable technical and analytical capability with hands-on experience across Red Hat Linux environments and Oracle-based systems, supporting troubleshooting, performance analysis, and system stability in complex enterprise landscapes.

• Familiar with modern integration technologies including MuleSoft, APIs, SSIS, and microservices architectures, with an understanding of how distributed systems interact and exchange data across enterprise platforms.

• Structured and methodical problem-solving approach, applying logical analysis and root cause investigation techniques to diagnose issues efficiently and deliver sustainable resolutions in high-pressure environments.

M&SSCC (Maintenance and Support Services Coordination Centre) team

The M&SSCC (Maintenance and Support Services Coordination Centre) team is responsible for delivering comprehensive maintenance and support services for aircraft operations worldwide. Additionally, the team ensures seamless coverage over various systems, driving growth and integrating technologies tailored to meet the unique needs of each customer. As subject matter experts (SMEs), the team addresses inquiries, troubleshoots issues, and provides valuable insights to enhance software functionality and performance. Ultimately, the M&SSCC team plays a crucial role in shaping the future of aircraft maintenance and support services on a global scale.

Why BAE Systems?

Here you’ll build a career with purpose and limitless possibilities. With lifelong learning and meaningful work, this is a place where you can grow your career with confidence and be empowered to be your best. You’ll be recognised for your contribution and enjoy rewards tailored to what’s most important to you and your family, support for your financial and personal wellbeing, as well as a balanced lifestyle. In an environment embracing sustainable ways of working and with a strong sense of shared purpose, our supportive culture is a place you can feel you belong and proud of the difference you make.

A place where everyone can thrive:

We’re committed to building an inclusive workplace where everyone feels valued and supported. We know that a diversity of backgrounds, perspectives and experiences strengthens our teams and is vital to the work we do.

Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks.

Closing Date: 18th November 2026

We reserve the right to close this vacancy early if we receive sufficient applications for the role. Therefore, if you are interested, please submit your application as early as possible.

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