Senior Controls Engineer - European Air-Cooled Chillers

About the role

Johnson Controls is looking for a Senior Controls Engineer for its new European air-cooled chiller engineering organization, based in Dublin. The role owns the control system design and performance of air-cooled chillers for the European market, working under minimal supervision from concept through release, and reports into the global controls team in York (PA).

Key responsibilities

• Own the control strategy and software for one or more chiller features, from concept through release, including scoping, estimating effort and setting technical direction.
• Lead control algorithm development with MATLAB / Simulink and model-based design, and define the model architecture for the features owned.
• Design and tune capacity control, staging logic, variable speed drive operation, condenser fan control, expansion valve control and leaving water temperature regulation.
• Define and verify machine protection logic (pressure and temperature limits, freeze protection, motor and drive protection, safe shutdown and restart).
• Apply European machinery, electrical and refrigeration safety requirements (Machinery Directive, Machinery Regulation, EN 60204-1, EN 378, EN IEC 60335-2-40) and lead functional safety assessments to EN ISO 13849-1 and EN IEC 62061.
• Lead controls cybersecurity work under the EU Cyber Resilience Act, including secure-by-design, secure updates, software bill of materials and vulnerability handling.
• Define and implement BACnet, Modbus and connected equipment interfaces, and work with ratings and product engineering on seasonal efficiency under EN 14825.
• Lead laboratory and field validation, coordinate testing on Dublin test stands, and resolve control, stability and reliability issues.
• Mentor less-experienced engineers, review designs and code, and act as escalation point for controls support across Europe.

Required profile

• BS in Electrical, Mechanical, Software, Systems or a related engineering discipline; MS preferred.
• At least 4 years of controls, automation, embedded systems or related experience, including ownership of control features through release.
• Proven experience developing and releasing control software with MATLAB / Simulink, and strong knowledge of model-based design.
• Experience leading product development, validation testing and troubleshooting in a laboratory environment.
• Excellent written and verbal communication, and ability to guide or mentor junior engineers.
• Ability to travel up to 10%, mainly within Europe.

Required skills

• Feedback control, loop tuning, plant modelling, simulation and data analysis.
• Reading and reviewing embedded C / C++ code; scripting with Python or MATLAB.
• Knowledge of European machinery, electrical and refrigeration safety requirements.
• Preferred: HVAC&R or chiller controls, cybersecurity under the EU Cyber Resilience Act, functional safety assessment, BACnet and Modbus, EN 14511 and EN 14825, hardware-in-the-loop simulation, EMC testing, and configurable product development.