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Oleson

Commissioning Engineer - London

London
Posted 2 days ago
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Commissioning Engineer - London

Commissioning Engineer – London

Oleson specialise in delivering high quality talent and solutions that enhance the capabilities and operational excellence of our global customers. We are focused on matching the dynamic needs of Data Centre and Life Science clients with skilled professionals, thereby driving innovation and growth in these critical sectors.

About the Role

We’re seeking a hands-on, detail-driven Commissioning Engineer to join our high-performance team. In this role, you'll be responsible for the commissioning, testing, and troubleshooting of Building Management Systems (BMS) and cooling systems in a Data Centre environment. This is a contract position with an immediate start.

Key Requirements

  • Must be eligible to work in the UK (no sponsorship is provided).

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Graduate Consultant — 2026 Scheme

PwC·London, UK
£35,000/yr

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Your economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.

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You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.

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Responsibilities

  • Commissioning & Testing

    • Execute Level 1–4 testing of systems, including Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT).
  • PLC Automation & Troubleshooting

    • Develop, debug, and refine PLC logic for BMS control systems.
    • Perform Modbus testing in line with register mapping specifications.
  • Sensor & Field Device Support

    • Troubleshoot temperature, humidity, and pressure sensors as well as transmitters to ensure accurate system feedback.
  • Test Script Development

    • Create, document, and execute detailed test scripts to validate system functionality and performance across all commissioning levels.
  • Point-to-Graphic Verification

    • Prepare and review point lists (hardwired and high-level interfaces), controls, alarm logs, trend data, and graphic screens.

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  • Wiring & Start-Up Checks

    • Perform physical wiring inspections.
    • Verify field device integrity.
    • Support system start-ups and plant integration.
  • HVAC System Support

    • Provide automation and commissioning support for chillers, AHUs, and ventilation systems.
  • System Diagnostics

    • Identify, analyse, and resolve system faults.
    • Recommend fixes and improvements.
    • Offer technical support to wider project teams.

Requirements

  • A technical qualification in Electrical, Mechanical, Mechatronics, Automation, or a related field.
  • 3+ years’ experience with programming PLCs or automation systems.
  • Ability to read technical drawings, schematics, and system architecture documents.
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Skills

Commissioning
Testing
Troubleshooting
Building Management Systems
PLC Automation
Modbus Testing
Sensor Support
Test Script Development
Point-to-Graphic Verification
Wiring Inspections
HVAC Systems
System Diagnostics
Technical Support

Location

London, England, United Kingdom

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