Systems Engineer

X4 Technology; United Kingdom; Hybrid; GBP 60,000 - 90,000; Full time

Job summary

X4 Technology is seeking a Systems Engineer for a permanent, hybrid role in the United Kingdom with active Enhanced DV clearance. The position offers flexibility and an immediate Start Date to contribute to national security programmes and secure digital solutions.

You will capture and manage complex requirements, apply engineering principles across the V-Model, and produce essential technical artefacts while collaborating with architects, customers and engineers to deliver compliant, secure

Qualifications

• Active Enhanced DV (eDV) clearance is required.
• Experience with defence or national security programmes expected.
• Familiarity with secure cloud, AI, and mission-critical environments preferred.

Responsibilities

• Capture, analyse and manage complex system requirements throughout the engineering lifecycle.
• Apply Systems Engineering principles across the full V-Model lifecycle.
• Produce and maintain systems documentation, requirements and technical artefacts.
• Support solution architecture, integration and verification activities.
• Work closely with customers, architects and engineering teams to deliver secure technical solutions.
• Identify technical risks and develop mitigation strategies.
• Contribute to systems design reviews and engineering governance.
• Ensure compliance with Defence standards, engineering frameworks and security requirements.
• Support transition from legacy environments to modern cloud-based solutions.
• Ability to influence senior stakeholders.

Skills

Requirements Mgmt

Systems Integration

Systems Thinking

Defence/National Security

Agile & Waterfall

Technical Stakeholder Mgmt

Job description

Location: United Kingdom (Hybrid - flexibility)

Employment Type: Permanent

Start Date: Immediate

Clearance Level Required: Enhanced Developed Vetting (eDV)

One of our Defence consultancy clients are looking for experienced Systems Engineers with active Enhanced DV (eDV) clearance to join a growing National Security engineering team delivering some of the UK's most complex digital programmes.

Working across secure cloud, AI, defence and mission‑critical environments, you'll help shape large‑scale systems from concept through delivery, collaborating with architects, software teams and customer stakeholders.

• Capture, analyse and manage complex system requirements throughout the engineering lifecycle.
• Apply Systems Engineering principles across the full V‑Model lifecycle.
• Produce and maintain systems documentation, requirements and technical artefacts.
• Support solution architecture, integration and verification activities.
• Work closely with customers, architects and engineering teams to deliver secure technical solutions.
• Identify technical risks and develop mitigation strategies.
• Contribute to systems design reviews and engineering governance.
• Ensure compliance with Defence standards, engineering frameworks and security requirements.
• Support transition from legacy environments to modern cloud‑based solutions.
• Must have current, active and transferable Enhanced DV (eDV)
• Ability to influence senior stakeholders

Systems Engineer – Technical Skills Required

• Requirements Management
• Systems Integration
• Systems Thinking
• Defence or National Security programmes
• Agile and Waterfall delivery
• Technical stakeholder management

Nice to have

• TOGAF
• MODAF
• DevSecOps
• Defence Standards
• JSPs