Senior Control Systems EngineerSheffieldHybrid• Flexible start and finish times• 25 days holiday plus bank holidays• Option to purchase additional leave• Salary sacrifice pension scheme• Long service benefitsWe are working with a highly regarded UK engineering business delivering complex mechanical handling and related systems into defence, aerospace, nuclear, infrastructure and specialist industrial environments.They are seeking a Senior Control Systems Engineer to lead the development and commissioning of PLC and control software for advanced industrial systems.The RoleThis is a hands on senior position combining software design, PLC programming and on site commissioning. You will lead a small software team and take technical ownership across the full lifecycle from concept through to test facility validation and client site commissioning.Key Responsibilities• Lead development of control software for industrial automation systems• Programme and configure Rockwell Allen Bradley PLCs, including ControlLogix• Develop and integrate HMI and SCADA systems• Collaborate closely with electrical and mechanical engineering teams• Commission systems both in house and on client sites• Troubleshoot real time integration issues across software and hardware• Ensure compliance with safety critical standards• Produce clear technical documentation and testing recordsExperience Required• Strong background in industrial automation or control systems• Rockwell Allen Bradley PLC experience essential• Experience with motors, drives and large mechanical systems• Proficiency in structured text, ladder logic and relevant control programming languages• Experience commissioning machinery in real world environments• Comfortable leading projects and mentoring junior engineersSecurity screening will be required upon offer.Advantages:• Experience with cranes, large motive machinery or heavy materials handling systems• Background in nuclear, defence or heavy engineering sectors