Principal Test & Testability Engineer

Principal Test & Testability Engineer

Hybrid Working | Competitive Salary + Bonus + Excellent Benefits

Shape the Future of Advanced Defence Technology

A rare opportunity has arisen for an accomplished Principal Test & Testability Engineer to join a highly respected engineering organisation working at the forefront of complex, mission-critical systems development.

This is a strategic technical leadership position for an experienced engineer who thrives on solving challenging problems, influencing engineering direction, and driving excellence across the full product lifecycle. You will play a pivotal role in defining test strategies, improving testability, influencing system architecture, and ensuring robust verification solutions for cutting-edge electronic and electro-mechanical systems.

If you have a passion for engineering innovation, test architecture, diagnostics, and technical leadership, this role offers the chance to make a genuine impact within a collaborative and highly skilled environment.

The Opportunity

As a Principal Test & Testability Engineer, you will act as a recognised technical expert, supporting multiple high-profile development programmes from concept through to production and in-service support.

Working closely with senior engineering stakeholders, you will be responsible for defining and improving test methodologies, enhancing diagnostic capability, and ensuring products are designed with effective testability embedded from the outset.

You will also have the opportunity to mentor engineers, influence technical strategy, and drive continuous improvement initiatives across the wider engineering function.

Key Responsibilities

Define and lead project-level test and testability strategies.

Establish robust test architectures for complex electronic systems.

Drive Design for Test (DfT) and testability best practices throughout the product lifecycle.

Develop requirements and specifications for test equipment and diagnostic solutions.

Analyse production and test data to identify trends, root causes, and opportunities for improvement.

Lead failure investigations and technical problem-solving activities.

Model and analyse system behaviour to assess test coverage and diagnost...