Systems Engineer – Systems Commissioning Specification Author

Expleo Group

Systems Commissioning Specification Author developing clear commissioning specifications for complex systems in a global engineering firm. Collaborates with multidisciplinary teams to ensure regulatory standards and operational expectations are met.

Posted 6/8/2026full-timeTelford • 🇬🇧 United KingdomMid-LevelSeniorWebsite

About the role

Key responsibilities & impact

The Systems Commissioning Specification Author is responsible for developing clear, accurate, and comprehensive commissioning specifications for complex systems.
This role ensures that all systems are fully tested, validated, and handed over in accordance with project requirements, regulatory standards, and operational expectations.
The author translates design intent, technical requirements, and operational needs into structured commissioning documentation that supports safe, efficient, and compliant system delivery.
Develop commissioning specifications for systems and subsystems (e.g., mechanical, electrical, control, or integrated systems)
Define commissioning scope, strategy, and verification activities
Produce test procedures, acceptance criteria, and validation methodologies
Ensure specifications align with design documentation, requirements, and standards
Collaborate with design engineers to ensure commissioning requirements are embedded early in the lifecycle
Identify gaps or risks in design from a commissioning perspective
Work closely with: Systems Engineers, Design Authorities, Project Managers, Commissioning Teams, Operations & Maintenance stakeholders
Facilitate reviews and workshops to validate commissioning approaches
Define test plans, inspection regimes, and commissioning sequences
Develop System Acceptance Test (SAT), Factory Acceptance Test (FAT), and Site Acceptance Test (SAT) documentation
Ensure traceability between requirements and test cases
Ensure specifications comply with industry standards (e.g., ISO, IEC, BS, or sector-specific requirements), safety regulations and statutory compliance, project-specific governance frameworks
Maintain audit-ready documentation
Produce high-quality, structured documentation with clear version control
Capture lessons learned from commissioning activities
Improve templates, standards, and authoring practices
Contribute to organisational commissioning best practices

Requirements

What you’ll need

Degree in Engineering, Systems Engineering, or a related technical discipline (or equivalent experience)
Relevant professional certifications (desirable)
Essential Experience in writing technical or engineering specifications
Strong understanding of systems engineering principles (e.g., lifecycle, requirements, V&V)
Experience in commissioning or testing complex systems
Ability to translate technical designs into structured test and commissioning activities
Excellent written communication skills with attention to detail
Experience with document control and configuration management
Desirable Experience in regulated industries (e.g., rail, nuclear, defence, utilities, aerospace)
Knowledge of systems integration and interface management
Familiarity with requirements management tools (e.g., DOORS, Jama)
Understanding of digital engineering or model-based systems engineering (MBSE)
Chartered or working towards professional accreditation
Document management systems (SharePoint, Aconex, etc.)
Systems modelling tools (e.g., Enterprise Architect, Capella)
Requirements management tools (DOORS, Jama, Polarion)
MS Office suite (Word, Excel, Vision)

Benefits

Comp & perks

Collaborative working environment – we stand shoulder to shoulder with our clients and our peers through good times and challenges
We empower all passionate technology loving professionals by allowing them to expand their skills and take part in inspiring projects
Expleo Academy - enables you to acquire and develop the right skills by delivering a suite of accredited training courses
Competitive company benefits
As a Disability Confident Committed Employer we have committed to: Ensure our recruitment process is inclusive and accessible Communicating and promoting vacancies Offering an interview to disabled people who meet the minimum criteria for the job Anticipating and providing reasonable adjustments as required Supporting any existing employee who acquires a disability or long term health condition, enabling them to stay in work

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

systems engineeringcommissioning specificationstest proceduresacceptance criteriavalidation methodologiesrequirements managementdocument controlconfiguration managementsystems integrationmodel-based systems engineering

Soft Skills

written communicationattention to detailcollaborationrisk identificationfacilitationdocumentation qualitytemplate improvementbest practices contribution

Certifications

degree in Engineeringdegree in Systems Engineeringprofessional accreditation