If you have ever wondered how to break into one of the most in-demand engineering roles in the UK, becoming a PLC engineer is a rewarding path worth exploring. Programmable Logic Controller engineers design, program, commission, and maintain the automated systems that keep factories, water treatment plants, and energy facilities running.
Step 1 — Understand What a PLC Engineer Does
PLC engineers write and debug ladder logic, structured text, and function block programs that control industrial machinery. They work with hardware from Siemens, Allen-Bradley, Mitsubishi, and other vendors. Day-to-day tasks range from wiring control panels to configuring SCADA systems and troubleshooting live production lines.
Step 2 — Get the Right Qualifications
Most employers look for at least one of the following:
- HNC / HND in Electrical or Electronic Engineering
- BEng or BSc in Control Systems, Mechatronics, or Automation
- NVQ Level 3 in Electrical Installation or Maintenance
- Vendor certifications such as Siemens TIA Portal or Rockwell Studio 5000
An apprenticeship combined with part-time study is another well-established route, especially through companies that partner with training providers.
Step 3 — Build Practical Skills
Theory alone will not land you a job. You need hands-on practice with real or simulated PLC hardware. Key skills to develop include:
- Ladder logic and structured text programming
- Electrical wiring and schematic reading
- HMI and SCADA configuration
- Industrial networking (PROFINET, EtherNet/IP, Modbus TCP)
- Safety systems and risk assessment
Training centres like EDWartens offer CPD-accredited courses that combine theory with practical labs, giving you verifiable skills employers trust.
Step 4 — Gain Experience
Entry-level roles such as junior controls engineer, maintenance technician, or commissioning assistant are excellent starting points. Many engineers begin in maintenance and transition to programming once they understand how systems behave in the field.
Volunteering for automation projects within your current role or completing a structured placement can also build your portfolio.
Step 5 — Specialise and Progress
After two to three years of general PLC work, consider specialising in areas such as:
- SCADA and telemetry for utilities
- Motion control for packaging and robotics
- Process control for pharmaceuticals and food manufacturing
- Safety systems (SIL-rated programming)
Specialisation often leads to senior engineer, lead engineer, or consultant roles with salaries exceeding GBP 60,000.
Step 6 — Keep Learning
Automation technology evolves rapidly. Stay current by attending CPD courses, joining professional bodies like the IET, and engaging with online communities. Certifications from Siemens, Rockwell, and EPLAN add significant value to your CV.
The UK automation sector is experiencing a skills gap, which means qualified PLC engineers are highly sought after. With the right training, determination, and continuous professional development, you can build a stable, well-paid, and genuinely interesting career.