Senior Commissioning Engineer (Instrumentation)

Millbank Holdings; England; On-site; GBP 63,000 - 89,000; Full time

Job summary

Millbank Holdings is seeking a Senior Commissioning Engineer with a strong instrumentation bias for a 12-month site-based contract in Berkshire. You will plan, coordinate and deliver commissioning activities, ensuring safety, efficiency and compliance with procedures and standards.

You will develop and maintain commissioning procedures and test documentation, coordinate instrumentation testing, verify readiness and manage defects through to resolution, while liaising with multiple disciplines

Qualifications

• Degree or HND in an appropriate engineering discipline.
• Significant experience in commissioning engineering within complex projects.
• Strong instrumentation commissioning experience.

Responsibilities

• Plan, coordinate and deliver commissioning activities across systems and work packages.
• Develop, review and maintain commissioning procedures and test docs (WAFs where applicable).
• Coordinate instrumentation testing and verification per procedures and acceptance criteria.
• Verify commissioning readiness with required docs, resources and prerequisites.
• Interface with engineering, installation and suppliers to resolve issues.

Skills

Instrumentation commissioning

Commissioning planning

Testing & verification

Documentation

Stakeholder comms

MS Office

Education

Degree or HND in engineering

Tools

Electrical test equipment

Job description

Senior Commissioning Engineer – Instrumentation Bias

Location: Aldermaston, Reading, Berkshire

Contract Duration: 12 months

Working Arrangement: Site-based, 5 days per week

Working Hours: 45–50 hours per week

Rate: £55.00 per hour Ltd (subject to an IR35 Assessment confirming outside status)

Security Clearance: Active SC clearance required to start; candidates must be eligible to obtain DV clearance. Existing DV clearance is highly advantageous.

Opportunity

We are seeking an experienced Senior Commissioning Engineer with a strong Instrumentation bias for a long‑term contract opportunity within a highly regulated engineering environment.

The successful candidate will be responsible for planning, coordinating and delivering commissioning activities, ensuring work is completed safely, efficiently and in accordance with approved procedures, technical specifications, quality standards and site requirements.

Key Responsibilities

• Plan, coordinate and deliver commissioning activities across assigned systems and work packages.
• Develop, review and maintain commissioning procedures, test documentation and associated work control documentation, including Work Authorisation Forms (WAFs), where applicable.
• Coordinate and undertake instrumentation testing and verification in accordance with approved procedures and acceptance criteria.
• Verify commissioning readiness, ensuring documentation, resources, access arrangements and technical prerequisites are in place.
• Liaise with engineering, installation, project management, suppliers and other commissioning disciplines to resolve technical issues and interface constraints.
• Monitor progress against programme milestones, maintain accurate records and report risks, issues, defects and outstanding actions.
• Identify and manage commissioning defects, deviations and non‑conformances through to resolution.
• Prepare commissioning completion reports, test records and handover documentation.
• Ensure all activities comply with applicable health, safety, quality and environmental requirements, site procedures and work controls.
• Provide technical guidance to commissioning personnel and support collaboration across multidisciplinary teams.

Essential Requirements

• Degree or HND in an appropriate engineering discipline.
• Significant experience in commissioning engineering within complex engineering or project delivery environments.
• Strong, demonstrable instrumentation commissioning experience.
• Experience in commissioning planning, testing, technical verification and completion documentation.
• Ability to manage assigned work packages, monitor progress and resolve technical and delivery issues.
• Strong organisational, reporting and stakeholder communication skills.
• Competent user of Microsoft Office and commissioning documentation systems.
• Active SC security clearance and eligibility to obtain DV clearance.

Desirable Experience

• Existing DV security clearance.
• Experience within the nuclear industry or other highly regulated, high-hazard environments.
• Background in decommissioning, waste management, environmental remediation or major engineering programmes.
• E&I experience with a clear instrumentation specialism, or a Chemical Engineering background supported by relevant instrumentation commissioning knowledge.
• Familiarity with quality management systems, technical assurance, change control and commissioning handover processes.

Millbank Holdings Ltd is an equal opportunities employer committed to creating an inclusive and diverse workforce. We welcome applications from all suitably qualified individuals, regardless of background, and encourage candidates from underrepresented groups to apply.

We are proud to be a member of the Disability Confident Scheme, and we are committed to ensuring an accessible and supportive recruitment process for everyone. If you require any adjustments at any stage, please let us know and we’ll do our best to accommodate.

Millbank operates as both an Employment Agency and an Employment Business.