Senior Systems Engineer - Defence

ALTEN; Manchester; On-site; GBP 35,000 - 65,000; Full time

Benefits offered by this job

Private Medical Insurance

Pension Scheme

Cycle-to-work Scheme

Flexible working

Job summary

A leading technology firm in Manchester is seeking experienced Systems Engineers to contribute to the development of submarine systems for the UK defence programme. This senior role requires ownership across the engineering lifecycle and expertise in systems engineering within regulated sectors. The position offers a hybrid work model, competitive salary range, and a range of benefits including private medical insurance and a pension scheme. Candidates must be eligible for SC clearance.

Qualifications

• 8+ years in systems engineering within defence or maritime sectors.
• Strong command of DOORS and system requirements management.
• Excellent problem-solving and debugging skills.

Responsibilities

• Own and deliver system-level engineering work packages.
• Lead systems design and architecture development.
• Define validation and verification strategies for systems.

Skills

Systems engineering

DOORS

User Requirements Documents interpretation

Problem-solving

Communication

Teamwork

Education

Bachelor’s or Master’s degree in Engineering or relevant field

Tools

V-cycle development

Job description

Compensation

GBP 35,000 - GBP 65,000 per year.

Job Description

Play a key role in shaping the future of underwater defence technology. ALTEN is seeking experienced Systems Engineers to support the development of mission‑critical submarine systems on a long‑term UK defence programme. Working on a complex multi‑domain architecture, you will take ownership across the entire systems engineering lifecycle — from understanding end‑user needs through to solution design, integration and validation. This is an opportunity to deliver impactful engineering in a secure, high‑integrity environment, where your expertise directly supports national defence capability.

Location & Clearance

Location: Manchester (Hybrid – 2/3 days per week on site)

Clearance: Candidates must be willing and eligible to obtain SC clearance.

Experience Level

Senior (8+ years)

Key Responsibilities

• Own and deliver system‑level engineering work packages across the entire V‑Model lifecycle.
• Lead and contribute to systems design, architecture development, and requirements derivation.
• Apply systems thinking to identify and mitigate technical risks, dependencies, and system interfaces.
• Analyse and interpret User Requirements Documents (URDs), create and manage baselines.
• Define and execute validation and verification strategies for complex hardware/software systems.
• Collaborate within project teams to produce high‑quality artefacts, from concepts to test readiness.

Qualifications

• 8+ years in systems engineering within defence, maritime, or similarly regulated sectors.
• Strong command of DOORS and system requirements management, and V‑cycle development.
• Understanding of submarine systems, complex defence architectures, or systems‑of‑systems.
• Familiarity with system safety, risk mitigation, and change management best practices.
• Proven ability to work independently, manage delivery, and communicate effectively.
• Must hold (or be eligible for) SC clearance.
• Excellent problem‑solving and debugging skills.
• Strong communication and teamwork abilities.
• Proactive approach to quality, compliance, and continuous learning.
• Ability to work effectively in a fast‑paced, multidisciplinary environment.

Required Qualifications

• Bachelor’s or Master’s degree in Computer Science, Software Engineering, Electronics Engineering, or relevant technical/military background with equivalent hands‑on experience.

Benefits

• A personalised career path and a rewarding management style
• A chance to work on the most exciting engineering projects and technologies along with Premium Customers
• A huge diversity of engineering projects and industries
• Private Medical Insurance
• Pension Scheme
• Cycle‑to‑work Scheme among many additional benefits
• Social atmosphere, regular gatherings, and team building
• Flexible way of working (role dependent)

Equal Employment Opportunity

ALTEN is committed to fostering a diverse and inclusive workplace and values the strength that comes from a global mix of backgrounds and perspectives. We welcome applications from all suitably qualified candidates, regardless of background or protected characteristics under the Equality Act 2010. If you require any reasonable adjustments during the recruitment process, please let us know.

Security Clearance

This role may require you to have or be willing to go through Security Clearance. As part of the onboarding process, candidates will be asked to complete a Baseline Personnel Security Standard; details of the evidence required to apply may be found on the government website Gov.UK. If you are unable to meet this and any associated criteria, then your employment may be delayed or rejected. Details of this will be discussed with you at interview.