Guide · Updated July 2026
Data Centre Commissioning and QA/QC Salary and Day Rate Guide 2026
Current UK and Ireland ranges for commissioning (Cx) and QA/QC roles on data centre projects. Ranges are for professionals with genuine data centre experience. General construction rates run lower.
Last updated: July 2026. Reviewed quarterly.
Permanent salaries (base)
| Role | UK | Ireland |
|---|---|---|
| Cx Engineer (L1-L3) | £55k - £75k | €60k - €80k |
| Senior Cx Engineer (L4/L5) | £80k - £105k | €85k - €110k |
| Commissioning Manager | £95k - £125k | €100k - €130k |
| Commissioning Authority (CxA) | £110k - £145k | €115k - €150k |
| QA/QC Engineer | £55k - £75k | €60k - €80k |
| QA/QC Manager | £80k - £100k | €85k - €105k |
Contract day rates
| Role | UK | Ireland |
|---|---|---|
| Cx Engineer (L1-L3) | £350 - £450 | €380 - €480 |
| Senior Cx Engineer (L4/L5) | £450 - £600 | €480 - €620 |
| Commissioning Manager | £600 - £800 | €620 - €820 |
| QA/QC Inspector (E&I / Mech) | £350 - £480 | €380 - €500 |
| QA/QC Manager | £500 - £700 | €520 - €720 |
What moves rates
- Verified L4 and L5 experience adds 10 to 25 percent to base.
- Prior hyperscaler project references (Meta, Google, Microsoft, AWS) command a premium.
- Willingness to travel or rotate to regional Irish sites (Ennis, Limerick) currently attracts uplift.
- BMS/controls specialists remain the tightest sub-market.