Commissioning Manager

John Sisk & Son Ltd; København; On-site; DKK 800,000 - 1,100,000; Full time

Job summary

John Sisk & Son Ltd seeks a Commissioning Manager to lead the commissioning function on a critical data centre/mission‑critical project. You will develop the commissioning plan, schedule, and resources, ensuring safe start-up, testing, and acceptance against client criteria, coordinating with vendors and the client commissioning agent.

You will oversee method statements, test scripts, and integrated systems tests, and drive readiness across trades while delivering complete turnover and

Qualifications

• Degree in Mechanical, Electrical or Building Services Engineering or equivalent.
• At least seven years in commissioning with team leadership experience.
• Understanding of mechanical and electrical systems, sequences and integrated testing.

Responsibilities

• Develop and own the project commissioning plan, including strategy, organisation, level definitions and documentation.
• Build and maintain the commissioning schedule; integrate with the construction program and drive readiness.
• Lead and develop the team of commissioning engineers; coordinate vendor and subcontractor resources.
• Chair commissioning meetings with construction, quality, vendors and client commissioning agent.
• Oversee development and approval of method statements, checklists and test procedures.
• Manage energisation and start-up sequence with safety permits and controls.
• Monitor test execution and ensure results are logged and reviewed in the commissioning system.
• Manage the commissioning issues log and drive closure with teams and vendors.
• Plan and lead integrated systems testing, including failure scenarios and redundancies with client and third parties.
• Ensure complete turnover packages, training and documentation for handover.
• Report progress, risks and constraints to project leadership weekly.

Skills

Leadership

Project management

Commissioning

Sequencing of operations

Communication

Education

Bachelor's degree in Mechanical, Electrical or Building Services Engineering

Tools

Commissioning management software

Job description

The Commissioning Manager leads Sensori's commissioning function on a project, ensuring mechanical and electrical systems are started, tested and proven safely, in the right sequence and to the client's acceptance criteria. The role develops the commissioning plan and schedule, manages commissioning engineers and vendor resources, controls the interface with the client's commissioning agent, and integrates commissioning requirements into the construction program so that handover is predictable and fully documented.

Principal duties and responsibilities

• Develop and own the project commissioning plan, including strategy, organisation, level definitions, sequences, acceptance criteria and documentation requirements.
• Build and maintain the commissioning schedule; integrate it with the construction program and drive readiness of systems and areas to support it.
• Lead, allocate and develop the team of commissioning engineers; coordinate vendor and subcontractor commissioning resources.
• Chair commissioning coordination meetings with construction, quality, Authorised Persons, vendors and the client's commissioning agent.
• Oversee development and approval of method statements, checklists, test scripts and integrated systems test procedures.
• Manage the energisation and start-up sequence in conjunction with the Senior Authorised Person, ensuring permits, isolations and safety controls are in place.
• Monitor test execution, witness critical tests and ensure results are recorded, reviewed and accepted in the commissioning management system.
• Manage the commissioning issues log; drive closure of deficiencies with construction teams, subcontractors and vendors.
• Plan and lead integrated systems testing, including failure scenarios and redundancy demonstrations, with the client and third parties.
• Ensure complete, accurate turnover packages, training and documentation are delivered for handover.
• Report commissioning progress, risks and constraints to project leadership weekly; contribute to lessons learned and improvement of Sensori's commissioning standards.
• Support pre-construction and tenders with commissioning strategies, durations and resource plans.

Selection criteria / person specification

• Degree in Mechanical, Electrical or Building Services Engineering, or a trade qualification with extensive commissioning leadership experience.
• At least seven years in commissioning, including several years leading commissioning teams on data centre, pharmaceutical or mission-critical projects.
• Strong understanding of both mechanical and electrical systems, sequences of operation and integrated testing.
• Experience working with client commissioning agents and formal level-based commissioning processes.
• Proven ability to plan and schedule commissioning within a construction program and to manage readiness across trades.
• Familiarity with commissioning management software and structured documentation.
• Strong leadership, coordination and communication skills; able to chair meetings and influence senior stakeholders.
• Sound knowledge of safe systems of work for energisation and live testing.
• Willing to travel and to be site-based for extended periods.