Controls & Commissioning Engineer

Controls & Commissioning Engineer 6 month initial contract £45 per hour Outside IR35 Are you an experienced Controls & Commissioning Engineer with strong PLC, HMI and commissioning experience? Are you looking for your…

Outside IR35 Engineering
Pay rate £45/hour
Contract type Contract
Posted 2 September 2026

Trusted. Transparent. Built for contractors. Thousands of UK contractors find their next contract on ContractorUK.

View all engineering jobs ›

About this contract

Controls & Commissioning Engineer
6 month initial contract
£45 per hour
Outside IR35

Are you an experienced Controls & Commissioning Engineer with strong PLC, HMI and commissioning experience? Are you looking for your next project?

Job Summary:
As a Controls & Commissioning Engineer, you will be responsible for supporting PLC / HMI software testing, FAT, Pre-FAT, iFAT and commissioning activities across projects, supplier facilities and project locations in the UK, Turkey and Vietnam.

You will support Hydraulic Power Unit packages and CAFS / INERT fire suppression control panels, including software readiness, controlled software updates, Cause & Effect Matrix verification, functional testing, troubleshooting and commissioning support.

Key Responsibilities:

PLC & HMI: Support PLC and HMI software testing, verification, programming, troubleshooting and modifications using Siemens TIA Portal, WinCC and/or Rockwell Studio 5000.

FAT & Commissioning: Support and deliver FAT, Pre-FAT, iFAT, SAT, commissioning, loop checks, functional testing and customer witness testing.

Controls Engineering: Carry out I/O verification, control system testing, instrument troubleshooting and commissioning across safe area and ATEX environments.

Documentation: Produce and review FDS, Control Philosophy documents, SLDs, Cause & Effect Diagrams, Network Architecture Diagrams, Instrument Lists, I/O Lists, Equipment Data Sheets, Load Schedules and Cable Schedules.

Electrical & Control Design: Support circuit protection design, cable sizing, electrical power distribution, panel design and wiring, AutoCAD Electrical mark-ups, functional electrical schematics and P&ID interpretation.

Issue Resolution: Troubleshoot and resolve PLC, HMI, instrumentation and controls issues, supporting software issue closure and punch list management.

Supplier & Client Liaison: Work directly with engineering, project, supplier and customer teams to resolve technical issues and ensure controls systems are ready for key project milestones.

Essential experience needed:

Minimum 5 years' experience as a Controls / Instrumentation & Control Engineer

Proven experience with:

Siemens TIA Portal

Siemens WinCC

Siemens PCS7 (desirable)

Rockwell Studio 5000 (desirable)

FactoryTalk (desirable)

PLC programming and troubleshooting

HMI development and modification

FAT, Pre-FAT, iFAT and SAT

Commissioning and loop checks

Functional testing and software issue resolution

Instrumentation and Control systems

ATEX / hazardous area environments

I/O verification and control system testing

P&ID interpretation

Pneumatic and hydraulic control systems
Experience working within industrial, marine, oil & gas or packaged equipment environments would be highly advantageous.

Working knowledge of: IEC 61508, 61511, SIL concepts, LOPA methodology, Safety Instrumented Functions (SIF), Cause & Effect verification

The successful candidate should be a practical, hands-on engineer who enjoys solving technical problems and actively supporting project delivery. The position is not intended to be primarily project management focused, so the successful candidate should be comfortable performing detailed engineering, troubleshooting, testing and commissioning activities directly.

If this sounds like a good fit for you please get in touch with Kate Blackwell at JAM Recruitment as soon as possible

Apply for this job

You'll complete your application on CV-Library, our jobs partner.

← More engineering jobs

Set up for this contract

ContractorUK partners
Markel Direct IR35 and contractor insurance

Most agencies and clients ask for professional indemnity and public liability before you start.

Get your quote →
SG Accounting Contractor accountants

Outside IR35 means working through your own limited company, so an accountant who knows contracting matters.

Find out more → Also: Caroola · Dolan Accountancy · Compare all accountants

Get new Engineering contracts by email

One email when new matches appear. Unsubscribe with one click.

Prefer to be found? Upload your CV to CV-Library — free