Senior Commissioning Engineer (Instrumentation)

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

Job summary

Millbank in Aldermaston is seeking a Senior Commissioning Engineer with an instrumentation bias for a long-term site-based contract. The role requires SC clearance eligibility and a 12-month engagement, with 45–50 hours per week.

The successful candidate will plan and execute commissioning activities, develop procedures, and verify instrumentation systems while ensuring safety and quality compliance across the project.

Qualifications

• Degree or equivalent in an engineering discipline.
• Significant experience in commissioning within complex projects.
• Strong instrumentation commissioning track record.

Responsibilities

• Plan, coordinate and deliver commissioning across systems and work packages.
• Develop and maintain commissioning procedures and test docs including WAFs.
• Coordinate instrumentation testing and verification per procedures.
• Ensure readiness, resources and prerequisites for commissioning.
• Interface with engineering, suppliers and teams to resolve issues.
• Monitor progress, document risks and actions, and report status.
• Identify defects and deviations through to resolution.
• Prepare completion reports and handover documentation.
• Ensure HSE compliance and site controls.

Skills

Instrumentation commissioning

Commissioning planning

Technical verification

Delivery issues management

Team collaboration

Education

Engineering degree / HND

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.

The 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.

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.