Senior System Architect - Platform Interface

baesystems; Portsmouth; Hybrid; GBP 70,000 - 90,000; Full time

Benefits offered by this job

Referral scheme £1000

Hybrid work model

Job summary

BAE Systems in Portsmouth (Broad Oak) is seeking a Senior System Architect (Platform Interface) to provide technical leadership for the integration of platform, mission and support systems across naval platforms. The role involves defining platform-agnostic architectures enabling interaction between propulsion, power, control, combat and auxiliary systems.

You will work in a complex system-of-systems environment to ensure safe, resilient and interoperable solutions aligned with Hybrid Navy

Qualifications

• Degree in Engineering or related field required.
• Full membership of engineering institution and Chartered Engineer status (or actively working towards).
• Extensive experience in maritime systems integration and system-of-systems architecture.
• Strong knowledge of platform automation, control systems and digital engineering.

Responsibilities

• Lead platform interface architecture and integration strategy.
• Define standards, interfaces and system integration principles.
• Resolve complex cross-domain integration and interoperability challenges.
• Embed cyber resilience, safety and assurance into architectural solutions.
• Support digital ship technologies, automation and control systems.
• Influence stakeholders on platform integration strategy and delivery.

Skills

Platform interface architecture

System-of-systems integration

Cyber resilience

Stakeholder influence

Education

Engineering degree

Chartered Engineer status (or in progress)

Job description

Job Title: Senior System Architect - Platform Interface

Location: Portsmouth (Broad Oak), Filton, Dorchester, hybrid - 3 days on site - this role will require routine travel to other southern BAE sites within UK and occasionally internationally.

Referral Scheme: £1000

Grade: GG13

You’re expected to have completed 12 months in role prior to applying for an advertised vacancy and you should also discuss the internal opportunity with your line manager to ensure sustained business continuity and to further support your career development.

We know there may be exceptional individual circumstances that impact this, in the first instance please discuss this with your line manager.

If you don’t feel you can talk to your line manager, you can contact your HRBP.

PLEASE NOTE: Should you be invited for interview; you acknowledge that the Recruitment team will contact you and your line manager regarding your application for this opportunity.

What you’ll be doing:

As a Senior Mission System Architect (Platform Interface), you will provide technical leadership for the integration of platform, mission and support systems across future naval platforms. You will define platform-agnostic architectures that enable seamless interaction between propulsion, power, control, combat and auxiliary systems and offboard monitoring. Working within complex system-of-systems environments, you will ensure solutions are safe, resilient, interoperable and aligned with Hybrid Navy strategic objectives. Collaborating with customers, suppliers and engineering teams across BAE Systems and the broader defence enterprise, you will influence strategic direction and deliver future-ready platform integration solutions that support operational performance and long-term capability growth.

Core duties:

• Lead platform interface architecture and integration strategy.
• Define standards, interfaces and system integration principles.
• Resolve complex cross-domain integration and interoperability challenges.
• Embed cyber resilience, safety and assurance into architectural solutions.
• Support digital ship technologies, automation and control systems.
• Influence stakeholders on platform integration strategy and delivery.

Essential skills:

• A degree in Engineering (or a related subject)
• Full membership of an appropriate engineering institution and be a Chartered Engineer (or actively working towards).
• Extensive experience in maritime systems integration and system-of-systems architecture.
• Strong knowledge of platform automation, control systems and digital engineering..

Combat System Engineering Team:

Within the dynamic and rapidly expanding Naval Ships Combat Systems business, you will form part of a highly skilled team of system architects charged with shaping the future of maritime mission systems. Working across domestic and international programmes alongside enterprise partners, in bringing to bear your specialist expertise, you will ensure that candidate solutions are innovative, future-force-ready, operationally relevant and coherent with customer and business needs.

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.

We welcome applications from all suitably qualified people, who are BAE Systems employees and have been in their current role for 12 months or longer.

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: 14th October 2026r