Understanding what you can earn as a PLC engineer is essential whether you are planning a career move or negotiating a pay rise. The UK automation sector continues to grow, and salaries have risen steadily as demand outpaces supply.
Average PLC Engineer Salaries in 2026
Based on current market data and recruitment trends, here is what PLC engineers can expect across different experience levels:
| Experience Level | Annual Salary (GBP) | |---|---| | Junior / Graduate (0-2 years) | 28,000 - 36,000 | | Mid-Level (3-5 years) | 38,000 - 52,000 | | Senior (6-10 years) | 52,000 - 68,000 | | Lead / Principal (10+ years) | 65,000 - 85,000 | | Contractor Day Rate | 300 - 550 per day |
These figures represent base salaries. Many roles include additional benefits such as company vehicles, overtime pay, shift allowances, and annual bonuses.
Factors That Influence Your Salary
Several variables determine where you fall within the salary bands:
- Location: London and the South East typically pay ten to fifteen per cent above the national average. However, cities like Manchester, Birmingham, and Leeds offer competitive salaries with lower living costs.
- Industry sector: Oil and gas, pharmaceuticals, and nuclear tend to pay the highest. General manufacturing and food processing sit at the lower end.
- PLC vendor expertise: Siemens and Allen-Bradley specialists often command higher rates than those working with less common platforms.
- Additional skills: Knowledge of SCADA, robotics, drives, or safety systems pushes salaries upward.
- Certifications: CPD-accredited training and vendor certifications demonstrate verified competence and give you leverage in negotiations.
Contractor vs Permanent
Contract PLC engineers can earn significantly more on a day-rate basis, with experienced contractors charging between GBP 350 and GBP 550 per day through limited companies. However, this comes without holiday pay, pension contributions, or job security.
Many engineers alternate between permanent and contract roles throughout their careers, using contract stints to accelerate earnings and permanent roles to build deep expertise at a single site.
How to Maximise Your Earning Potential
- Invest in training — CPD-accredited courses from providers like EDWartens demonstrate commitment and keep your skills current.
- Gain multi-vendor experience — Being fluent in both Siemens TIA Portal and Rockwell Studio 5000 makes you far more marketable.
- Develop soft skills — Engineers who can communicate with clients, manage small teams, and write clear documentation advance faster.
- Build a portfolio — Document your projects with before-and-after descriptions, technical challenges, and measurable outcomes.
- Network actively — Many of the best roles are filled through referrals and industry connections rather than job boards.
The Outlook
The UK government's push toward Industry 4.0, Net Zero targets, and reshoring of manufacturing means automation investment will continue to grow. For PLC engineers willing to upskill and specialise, the salary trajectory looks extremely positive heading into the late 2020s.