PLC Control Systems Engineer

About the Role <br />We're seeking an experienced PLC Control Systems Engineer (5–10 years) to design, program, test, and commission industrial control systems across power solutions projects. Including diesel generator controls, switchgear/ATS/AMF panels, load sharing/synchronisation, and associated HMI/SCADA interfaces. <br />The role spans the full project lifecycle (FDS/DDS, coding, FAT/SAT, on-site commissioning), working closely with electrical design, project managers, and clients to deliver robust, safe, and maintainable systems that meet industry standards. UK &amp; USA Government clearance is required.Key Responsibilities 1) Design &amp; Development • Produce and own control system deliverables: User Requirements (URS), FDS, DDS/SDS, I/O lists, Cause &amp; Effect, alarms, and test plans. • Develop PLC/HMI/SCADA applications to internal coding standards and client specifications. • Configure and integrate generator controllers (Deep Sea Electronics (DSE), ComAp, Woodward), synchronising and load-sharing schemes, ATS/AMF logic, and black-start/priority management. • Interface PLCs with protection relays, meters, breakers, UPS, and BMS/EMS systems. • Collaborate with electrical design for wiring schematics (e.g., EPLAN/AutoCAD Electrical) and panel build liaison. 2) Testing &amp; Commissioning • Lead FAT/SAT, I/O checks, loop testing, simulation, and site commissioning. • Troubleshoot PLC, HMI/SCADA, and comms networks; implement robust fixes and design improvements. • Produce handover packs, as-built software, change logs, and training for end users (O&amp;M). 3) Documentation, Quality &amp; Compliance • Maintain version control, change management, and code libraries (e.g., Git-based workflows). • Ensure compliance with functional safety and electrical standards where applicable (e.g., IEC 60204-1, SIL principles/IEC 61511), PUWER, and Machinery Directive/UKCA. • Contribute to RAMS for site works; uphold ISO 9001 quality procedures and good engineering practice. 4) OT Networking &amp; Cybersecurity • Design and commission industrial Ethernet networks (managed switches, VLANs, NAT, routing). • Implement and document secure architectures and segmentation, harden PLC/HMI/SCADA assets, and apply password/backup policies and access controls in line with best practices. • Configure and troubleshoot common industrial protocols: Modbus TCP/RTU, Profinet, Profibus, EtherNet/IP, OPC UA; (nice to have: IEC 61850, DNP3). 5) Continuous Improvement &amp; Support • Mentor junior engineers, contribute to coding standards, reusable function blocks, and templates. • Provide remote and on-site support, root-cause analysis, and preventive maintenance recommendations. • Suggest design enhancements for reliability, maintainability, and lifecycle cost reduction. <br />Technical Skills PLC / HMI / SCADA • Allen Bradley, Siemens TIA Portal (SCL/ladder), WinCC/Unified; Rockwell Studio 5000 (Ladder/Structured Text), FactoryTalk View. • Optional: Schneider EcoStruxure, Mitsubishi GX Works, Beckhoff TwinCAT, AVEVA/Wonderware, Ignition. • Must have written system code from conception / from design. Generator &amp; Power Integration • DSE/ComAp/Woodward controller integration, breaker control, load management, protection interfaces. • Familiarity with UPS systems, power meters, and protection relays. Networks &amp; Protocols • Layer-2/3 concepts, VLANs, NAT, routing, industrial firewalls; Modbus, Profinet, Profibus, EtherNet/IP, OPC UA. Electrical &amp; Safety • Read/mark up schematics, panel layouts, and cable schedules. • Awareness of IEC 60204-1, functional safety (SIL concepts), BS 7671 principles, PUWER; RAMS. Qualifications &amp; Certifications (Desired) • Degree/HND in Electrical, Electronic, Control/Automation, or Mechatronics Engineering (or equivalent experience). • ECS/CSCS or safety passports. • Full UK driving licence and ability to work on client sites. •

Nice to have:

Functional Safety awareness (e.g., TÜV), CompEx/ATEX awareness where applicable. <br />Personal Attributes • Methodical, safety-first, and quality-driven, strong attention to detail. • Clear communicator with clients, site teams, and non-technical stakeholders. • Proactive problem solver, comfortable under time pressure during commissioning. • Team player who can also work independently and mentor others. • Willing to travel to sites across the UK <br />Benefits • Competitive salary • Company pension; 25 days' holiday &amp; bank holidays. • Company laptop &amp; mobile phone. • Training &amp; certification support (APM/PRINCE2/18th Edition/Siemens/Allen-Bradley). • Professional membership support (IET/APM). • Flexible site travel expenses. • Private health care (post probation) <br />Working Pattern 70% Office – 30% site work. 8.30am – 4.30pm Belvedere Office DA17 6AH. Weekend work and out of hours work will be required as per site requests. UK travel to customer sites, factories, and FAT locations. <br />Candidates must have the right to work in the UK, have a British passport or settlement status.