Software Engineer – Industrial Automation (PLC & SCADA) Location:
Remote Working / Bristol or South Wales Office Salary:
Competitive (depending on experience) + Overtime (subject to workload) Working Pattern:
Hybrid, dependent on project phase (development / commissioning) Training Repayment Costs Owed to Current Employer:
Considered on a case-by-case basis
About the Role
We're looking for practical, hands-on engineers with a foundation in PLCs who are ready to take the next step in their automation career. Whether your background is in installation, maintenance, software, or SCADA, if you understand control systems and want to get involved in full automation project delivery, we'd like to hear from you. In this role, you'll support projects from initial design through to on-site commissioning, working on systems that support critical UK infrastructure – particularly in the water, utilities, and energy sectors.
It's a great opportunity for someone who's technically capable and eager to broaden their skills across PLCs, SCADA, and real-world automation delivery. We offer a supportive team environment where you can grow, take on more responsibility, and progress your career in industrial automation.
Key Responsibilities Design and develop PLC software based on Functional Design Specifications (FDS), derived from the client's control philosophy or User Requirement Specification (URS). Carry out simulations and testing throughout the project lifecycle, including iFAT, cFAT, and SAT
Contribute to the setup, configuration, and validation of industrial networks. Develop and modify SCADA and HMI applications using industry-standard platforms
Provide on-site and remote commissioning support, including I/O checks and system validation, and diagnose and resolve control system issues during commissioning and post-installation callouts
Collaborate effectively with engineers, electricians, and client stakeholders to deliver integrated solutions
Ensure all software, documentation, and testing procedures comply with Quality Management System (QMS) and client requirements
Essential Experience (proficiency in one or more) Siemens TIA Portal – including Step 7 (S7-1200/S7-1500) and legacy support for S7-300/400
Mitsubishi GX Works2, GX Works3, or GX Developer – used for programming FX, Q, and iQ-R series PLCs
Schneider Electric EcoStruxure Control Expert (formerly known as Unity Pro) – used for Modicon M340, M580, and Premium PLCs
Rockwell Automation Studio 5000 (formerly RSLogix 5000) – for ControlLogix and CompactLogix PLCs
Desirable Experience & Qualifications Experience with SCADA platforms such as WinCC, iFIX, VTScada, ClearSCADA, InTouch, Citect, or Ignition
Motor control systems including VSDs, soft starters, intelligent overloads, and relay/contactor logic
OT networking: Ethernet protocols (TCP/IP, UDP), industrial protocols (Modbus, Profibus, Profinet), VLANs, fibre optic networks, network redundancy (e.g. MRP, RSTP), and basic routing, plus awareness of cybersecurity standards such as IEC 62443
Process control knowledge, including PID tuning, loop optimisation, and control sequencing
Strong electrical competence – fault finding, I/O testing, and panel wiring (digital and analogue), with experience commissioning automation software on-site, including I/O validation, system testing, and live fault resolution
Familiarity with UK water industry telemetry systems, including Servelec S250, S500, and S2000 outstations, DNP3 communication protocols, and cellular modem integration
Industry background in water, utilities, energy, or manufacturing environments
HNC/HND in Electrical, Mechanical, Automation, or a related engineering discipline (or equivalent experience), and/or an ECS or CSCS card
Willingness to travel within the UK as required for site-based commissioning and support
What We're Looking For Engineers with a solid base understanding of PLCs and a willingness to continue learning
Problem-solvers who enjoy hands-on technical work and collaborative delivery, and are able to develop structured, well-documented software from client specifications
Confident delivering high-quality outcomes under pressure and in dynamic site environments. Team players who support both clients and colleagues to achieve the best project outcomes
Comfortable engaging with clients and stakeholders during design, delivery, and commissioning. Self-driven and accountable, with a strong sense of ownership and pride in their work
Full UK driving licence (essential)
What We Offer Competitive salary based on experience, with overtime opportunities (project-dependent)
Hybrid working with travel across the UK
33 days annual leave (25 days + 8
Software Engineer (PLC & SCADA) in London employer: GPS Ltd
At GPS Links, we pride ourselves on being an excellent employer by fostering a supportive and collaborative work culture that encourages continuous learning and professional growth. Our hybrid working model allows for flexibility while engaging in meaningful projects that contribute to critical UK infrastructure, particularly in the water, utilities, and energy sectors. With competitive salaries, generous leave policies, and a commitment to employee wellbeing, we are dedicated to creating a rewarding environment for our engineers to thrive and advance their careers in industrial automation.
