Senior Test Software Engineer — Defence Systems (C/C++)

Cirrus Selection in Stevenage is seeking a Senior Test Software Engineer to join an on-site engineering team. You will write robust C/C++ software that configures, verifies and validates complex defence systems used in development, production and field environments.

This role emphasizes system-level understanding and practical problem solving, not just software. You’ll collaborate with Systems, Electronics and Test teams to deliver high-performance test applications and automation in safety- or

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