PLC Siemens Safety Software Engineer/Safety Software Engineer (Contract) - 9 month contract - Hybrid 2 days a week in Welwyn Garden City
We’re looking for experienced PLC Siemens Safety Software Engineers to help design, develop, and optimise safety-critical control systems used across advanced automation environments.
What You’ll Do
* Develop and maintain safety-related PLC systems (Siemens; Beckhoff a bonus).
* Implement safety functions (E-Stops, interlocks, light curtains, etc.) to global standards.
* Support FAT/SAT testing, commissioning, and system optimisation.
* Produce technical documentation and collaborate across engineering disciplines.
What You Bring
* 3–5+ years in PLC programming with strong safety engineering expertise.
* Siemens Safety training.
* Strong knowledge of safety standards (ISO 13849, IEC 62061, IEC 61508).
* Skilled in TIA Portal and industrial comms (Profibus, Profinet, EtherNet/IP, Modbus).
* STEM degree and ability to work independently across multiple projects.
* TÜV or CE/SIL experience is a plus.
If you’re passionate about functional safety and high-performance automation, we’d love to hear from you.