The median PLC engineer salary in the UK in 2026 is £60,000 per year, according to IT Jobs Watch's 6-month rolling data to April 2026. Junior roles start at £30,000 to £35,000, mid-level reach £40,000 to £55,000, senior peak £55,000 to £75,000, and principal-level controls architects in London can hit £85,000 to £120,000+. Contractors charge £400 to £700 per day depending on PLC platform, industry vertical, and security clearance status.
Those are the headline numbers. The interesting question is what actually drives the £40,000 spread between a junior and a senior, and how fast you can move up.
Salary by experience level
These ranges blend permanent and contract data across UK manufacturing, water, energy, pharma, food and packaging sectors as of May 2026:
| Level | Years experience | Permanent £/year | Contract £/day | |-------|------------------|------------------|----------------| | Trainee / apprentice | 0–1 | £22,000–£28,000 | n/a | | Junior PLC engineer | 1–3 | £30,000–£38,000 | £300–£400 | | Mid PLC engineer | 3–6 | £40,000–£55,000 | £400–£500 | | Senior PLC engineer | 6–10 | £55,000–£75,000 | £500–£600 | | Lead / Principal controls engineer | 10+ | £75,000–£110,000 | £600–£750 | | Controls architect (London / niche sector) | 12+ | £95,000–£144,000 | £700–£900 |
The biggest single jump in pay is between the junior (1–3 years) and mid (3–6 years) bands. That gap of roughly £15,000 to £20,000 closes faster if you cross-skill onto a second PLC platform (typically the Siemens-to-Allen Bradley or vice versa switch).
Salary by UK region
PLC engineer pay is more region-dependent than typical office roles because the work is on-site at manufacturing plants:
| Region | Junior median | Mid median | Senior median | |--------|---------------|------------|---------------| | London and South East | £35,000 | £52,000 | £70,000 | | West Midlands (Birmingham, Coventry) | £33,000 | £48,000 | £62,000 | | North West (Manchester, Liverpool) | £32,000 | £46,000 | £60,000 | | Yorkshire (Leeds, Sheffield) | £30,000 | £44,000 | £58,000 | | Scotland (Glasgow, Edinburgh, Aberdeen) | £33,000 | £48,000 | £65,000 | | Wales (Cardiff, Wrexham) | £30,000 | £44,000 | £56,000 | | Northern Ireland | £29,000 | £42,000 | £55,000 |
London pays a premium (about 12 to 18% above the UK median) but the in-office automation roles are scarcer there than the manufacturing belt (West Midlands, Yorkshire, North West). Aberdeen pays an oil and gas premium (about 15 to 25% above national median for offshore-related controls work).
For city-by-city breakdowns including the dominant employers in each location, see our PLC training UK page.
Salary by industry sector
Sector matters as much as region:
- Pharmaceuticals (GMP regulated, GSK, AstraZeneca, Pfizer, etc.): 15–25% above median. Heavy validation work but very stable.
- Oil and gas / petrochemical (BP, Shell, Ineos): 20–35% above median, plus rotational allowances for offshore. Niche skills (Emerson DeltaV, ABB 800xA) command further premiums.
- Automotive (JLR, Nissan, Toyota): At or slightly above median. High pressure, project-based, often contract.
- Food and beverage (Müller, 2 Sisters, Greencore, Coca-Cola): At or just below median. Steady demand, less glamorous.
- Water utilities (Thames Water, Severn Trent, Anglian): 5–10% below median for permanent, but very strong contractor day rates (£500–£700/day) on framework projects.
- Defence (BAE, Babcock, Rolls Royce): 10–20% above median IF you have or can get UK SC or DV security clearance.
- System integrators: Wide spread. Top integrators (Boulting, Tyler, Optimal Industrial Automation) pay close to manufacturing rates with more project variety.
Salary by PLC platform
The platform you specialise in affects pay, mostly because some platforms are in short supply relative to demand:
- Siemens TIA Portal (S7-1200, S7-1500): Highest demand UK-wide. Solid baseline pay; widest job pool.
- Rockwell / Allen Bradley Studio 5000: Premium of 5–10% over Siemens, especially in automotive and life sciences. Smaller talent pool.
- Mitsubishi GX Works: Common in older UK plants and Japanese-owned manufacturers (Honda, Nissan, Komatsu). Steady demand, slightly below Siemens.
- Schneider Modicon / EcoStruxure: Common in water and HVAC. Niche; pays well to engineers who know it.
- Emerson DeltaV, Honeywell Experion (DCS): 25–40% premium over PLC roles due to process industry concentration.
- Beckhoff TwinCAT: Growing fast in robotics and PC-based control. Premium for cross-skilled PLC+TwinCAT engineers.
Engineers who can switch between two of the above platforms credibly add £8,000 to £15,000 to their permanent salary band.
How to actually move from junior to mid faster
Three factors compress the time from £30,000 to £50,000:
- Get on commissioning trips early. Office-bound PLC engineers who never see a site at start-up plateau around the £40,000 band. Travel makes a real difference.
- Learn a second platform. Cross-skilling Siemens engineers onto Allen Bradley (or vice versa) is the single highest-leverage move you can make in years 2 to 4.
- Pick a process sector and stay in it. Pharma, oil and gas, and water all pay over-median because the validation, regulatory and reliability requirements are demanding. Generalists earn less than specialists at the mid level.
Contractor vs permanent — which pays more?
Day rates of £400 to £700 sound attractive against a £55,000 salary, but the real comparison is:
- A £550/day contractor working 220 productive days a year grosses £121,000
- After Limited Company corporation tax, dividends tax, and accounting fees, take-home is roughly £75,000 to £85,000
- The equivalent £55,000 permanent role with pension, holiday, sick pay, training budget and stability is worth approximately £67,000 in total package
So contracting nets approximately £8,000 to £18,000 more after expenses, in exchange for zero job security, no employer pension, no paid holiday, and IR35 risk. Make the switch only when you've banked at least 6 months of expenses and have an active network of clients.
What about international engineers working in the UK?
The 2026 Skilled Worker visa threshold is £41,700 or the going rate for SOC 2127 (Production and process engineers), whichever is higher. Most permanent UK PLC engineer roles meet this. Over 50,000 UK employers hold sponsor licences, and engineering is one of the top three sectors for sponsored hiring along with healthcare and IT.
International applicants we've placed typically need:
- UK-recognised PLC training (CPD accredited, from a UKRLP-registered provider)
- A working portfolio project
- Strong written and spoken English (B2 minimum)
- Patience for the visa process (typically 3 to 6 months end-to-end)
EDWartens has placed engineers from India, Nigeria, the Philippines, Pakistan, Egypt and the EU into UK sponsored roles. See our placements page for examples.
How does PLC engineer pay compare to other engineering roles?
Quick benchmarking from UK 2026 data:
- PLC engineer median: £60,000
- Software engineer median: £58,000
- Mechanical engineer median: £45,000
- Electrical engineer median: £48,000
- Project engineer median: £52,000
- Chartered Engineer (any discipline) median: £72,000
PLC engineering is among the highest-paid engineering disciplines without requiring chartered status, primarily because the supply of trained engineers is structurally short.
Next steps
If the pay bands here look attractive and you want to start training, our Professional Automation Engineering Module covers Siemens TIA Portal, WinCC SCADA, and hands-on commissioning skills over five days for £2,140. We're CPD accredited and named Best PLC Training Provider UK 2025. Book a free consultation or see our placement record for typical starting salaries our graduates achieve.
Data sources: IT Jobs Watch PLC Engineer, Glassdoor UK PLC Programmer 2026 data, Adzuna UK salary statistics, Indeed UK PLC Programmer salaries, and EDWartens' own placement records across the 2023–2026 cohorts.
