Junior Mechanical Project Engineer - London - 145428

Jones Engineering; Greater London; On-site; GBP 28,000 - 38,000; Full time

Job summary

Jones Engineering in London is seeking a Junior Mechanical Project Engineer to support the delivery of mechanical systems on data centre construction projects. You will work with senior engineers to coordinate drawings, documentation, procurement tracking and commissioning activities, ensuring safety and on-schedule delivery.

This graduate or early-career role offers hands-on experience across design coordination, site inspections and ITPs, with a clear pathway toward progression to Senior

Qualifications

• Ideal for a graduate or early-career engineer seeking development in mission-critical data centre projects.
• Strong organisational and communication skills are required.

Responsibilities

• Assist with day-to-day management of mechanical works on site.
• Monitor installation progress and report site activities.
• Attend coordination meetings with subcontractors and project teams.
• Support milestone tracking and programme deliverables.
• Help resolve technical and construction-related issues.
• Support pre-commissioning and commissioning activities.

Skills

Coordination

Quality inspections

Procurement tracking

Commissioning activities

Job description

Location London

Reports To: Project Manager / Senior Mechanical Project Engineer

Support the delivery of mechanical systems on data centre construction projects. Working alongside senior engineers and project managers the role assists with coordination, quality inspections, technical documentation, procurement tracking and commissioning activities to ensure mechanical works are completed safely, on schedule and in accordance with project specifications.

Junior Mechanical Project Engineer

Location London

Reports To: Project Manager / Senior Mechanical Project Engineer

Support the delivery of mechanical systems on data centre construction projects. Working alongside senior engineers and project managers the role assists with coordination, quality inspections, technical documentation, procurement tracking and commissioning activities to ensure mechanical works are completed safely, on schedule and in accordance with project specifications.

This position is ideal for a graduate or early-career engineer seeking to develop technical and project management skills within the mission-critical construction sector.

Key Responsibilities

Project Support

• Assist the project team with the day-to-day management of mechanical works.
• Monitor installation progress and report on site activities.
• Attend coordination meetings with subcontractors and internal project teams.
• Support tracking of project milestones and programme deliverables.
• Assist with resolving technical and construction-related issues.

Technical Coordination

• Review mechanical drawings and specifications.
• Assist in managing Requests for Information (RFIs) and technical queries.
• Support the review of subcontractor technical submissions and shop drawings.
• Coordinate information between designers, subcontractors, and site teams.
• Ensure latest revisions of drawings and documents are available on site.

Quality Assurance

• Conduct site inspections under the guidance of senior engineers.
• Assist with quality checks and verification of installations.
• Support management of Inspection and Test Plans (ITPs).
• Help identify and track defects, snags and corrective actions.
• Maintain quality records and inspection documentation.

Procurement & Materials

• Assist in tracking procurement of mechanical equipment and materials.
• Monitor delivery schedules and site logistics.
• Verify materials delivered to site match approved specifications.
• Maintain procurement trackers and equipment schedules.

Commissioning Support

• Assist with pre-commissioning and commissioning activities.
• Support preparation of commissioning documentation.
• Coordinate subcontractors during testing activities.
• Track commissioning issues and close-out actions.
• Assist with turnover and handover documentation.

Health & Safety

• Promote safe working practices on site.
• Participate in site safety walks and toolbox talks.
• Ensure mechanical subcontractors comply with project safety requirements.
• Report hazards and unsafe conditions promptly.

Documentation & Reporting

• Maintain project records and document control systems.
• Prepare progress reports and meeting minutes.
• Update action trackers and technical logs.
• Support compilation of as-built documentation and project closeout packages

Career Development

This role provides a structured pathway towards:

• Mechanical Project Engineer
• Senior Mechanical Project Engineer
• Mechanical Project Manager
• MEP Project Manager

The successful candidate will gain exposure to the full lifecycle of mission-critical data centre projects, including design coordination, construction delivery, commissioning and client handover.