Principal System Engineer

JR United Kingdom; Slough; On-site; GBP 50,000 - 70,000; Full time

Job summary

A leading engineering company is looking for a Principal Systems Engineer to join their team in Slough, focusing on the early phases of complex system development. The role involves defining system concepts, leading design reviews, and ensuring alignment across engineering domains. Candidates need solid systems engineering experience and must be eligible for UK security clearance.

Benefits

Early Friday finishes

Time-off-in-lieu

Annual bonuses

Holiday buy/sell

Christmas shutdown

Health plans

Dental plans

Critical illness plans

Discounts

Life assurance

Qualifications

• Solid understanding of systems engineering and the V-model.
• Cross-discipline experience (software, hardware, mechanical).
• Candidates must be eligible to obtain UK Eyes Only SC clearance.

Responsibilities

• Define system concepts, use cases, and architecture.
• Capture and break down system-level requirements.
• Run trade studies and shape early design decisions.

Skills

Systems Engineering

Structured Decision-Making

Trade-off Analysis

Communication

Clean Systems Thinking

Tools

DOORS

SysML

JAMA

Job description

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Our client is seeking a Principal Systems Engineer to join a multi-disciplinary engineering team focused on the early phases of complex system development. Reporting to the Project Engineering Lead and working closely with the Design Authority, you will be instrumental in shaping system solutions from initial concept through to architectural definition and requirement development, supporting the progression of technology through various readiness levels.

Due to the where the project w role is ideally suited to an engineer who thrives in the left side of the V-model, with a passion for clean, structured systems thinking and the integration of diverse engineering domains (software, hardware, mechanical).

Key Responsibilities

• Define system concepts, use cases, and architecture
• Capture and break down system-level requirements
• Run trade studies and shape early design decisions
• Lead and contribute to system design reviews
• Spot risks early and support mitigation plans
• Work closely with cross-functional teams to align goals
• Solid understanding of systems engineering and the V-model
• Cross-discipline experience (software, hardware, mechanical)
• Skilled in tools like DOORS, SysML, JAMA
• Strong in trade-off analysis and structured decision-making
• Confident communicator with stakeholders at all levels
• Familiar with integration and verification planning
• Early Friday finishes, time-off-in-lieu, and annual bonuses.
• Holiday buy/sell and Christmas shutdown.
• Health, dental, and critical illness plans.
• Discounts, life assurance.

Please note candidates must be eligible to obtain UK Eyes Only SC clearance