Job Title: Senior Mechanical Engineer (Building Services) Location: Cardiff / Swansea Pay Rate: 51 per hour Umbrella PAYE (37.5 hours per week) Qualifications required: Degree / IEng / CEng Travelling costs expensed Notice Period: 4 weeks About the company Our client are ranked as one of LinkedIn's Top 25 Companies, where UK professionals want to work and stay once they join. They've also made the Times Top 50 employers for women. Their Infrastructure team uses innovation, new approaches and the power of data to help our clients deliver end-to-end projects and programmes for essential future infrastructure. And as the work becomes ever more complex, their employees continue to challenge the status quo. Our client are looking for Senior / Principal Mechanical Building Services Contract Engineer to join their growing team in Cardiff. The responsibilities of the role are: Client briefing and stakeholder management. Mechanical...

Freelance P6 Project Planner - Rail Upgrade Project Location: Cardiff, Wales Duration: 2-3 Years (Long-term) Rate: Up to (Apply online only) per day (Outside IR35 - Paid via Ltd Co) DOE We have a rare, long-term opportunity for a Project Planner to join a major rail upgrade project in Cardiff. This role is perfect for a scheduling expert who enjoys the complexity of multi-disciplinary schemes involving Civils & Building. As the project moves through its delivery phase, you will be the "engine room" of the schedule, ensuring the project remains on track, compliant, and commercially viable. Key Responsibilities Schedule Management: Creating, maintaining, and updating complex project schedules using Primavera P6 . Integrated Project Team: Working closely with Site/Sub Agents to capture progress from both self-delivery teams and subcontractors (50/50 split). Reporting: Developing progress reports, dashboards, and S-curves for senior management...

We have an exciting opportunity for a Freelance Sub or Site Agent to work on a rail station upgrade Project in Cardiff, Wales for 2-3 years As a Sub / Site Agent you will be working on Civils, with Buildings/Architecture, & MEP elements Duties will include: Managing Section Engineers and 50% subcontractor management, 50% Self delivery Planning, forecasting and delivering work Liaising with clients and stakeholders Developing programmes, Risk assessments, Quality assurance. Managing design, NCRs, RFI's, H&S etc. Rate is Outside IR35 paid LTdD up to 550 a day, Depending on experience Randstad CPE values diversity and promotes equality. No terminology in this advert is intended to discriminate against any of the protected characteristics that fall under the Equality Act 2010. We encourage and welcome applications from all sections of society and are more than happy to discuss reasonable adjustments and/or additional arrangements as required to...

M&E Senior Project manager Sector: Data Centres Client side Location: Newport Great opportunity to work on multiple projects in a live data centre ensuring project are managed and handed back in a timely manner. As the post holder, you will be expected to have expertise in working within mission critical facilities such as complex Tier 3 or above Data Centres. A definitive understanding of building services systems, contingency procedures and be proactive in passing on this knowledge through development of the engineering team. The Project Manager will be ensuring the required standards are met and exceeded when operating critical infrastructure and reducing the down time on Projects within that operating paradigm To ensure the highest engineering standards are achieved and maintained at all times by both 3rd party specialist and engineering staff alike. To oversee competencies of 3rd party specialist and engineering staff, train, coach and mentor the...

Job Title: Change Commercial Manager Location: Pembroke 400kV Substation (Merlin House, Langstone Business Park) Start Date: 05/05/2026 End Date: 18/12/2026 Duration: 7 months Working Pattern: 5 days per week Hours: 08:00 - 17:00 Rate: Up to 600 per day DOE Contract Type: Temporary IR35 Status: Inside IR35 (LTD not permitted) Role Overview: You will be responsible for managing commercial change processes across the project, specifically handling compensation events linked to design changes under an NEC4 Option C contract. This is a hands-on role requiring strong commercial acumen, stakeholder management, and the ability to operate within a fast-paced, high-value infrastructure environment. Key Responsibilities: Assess, price, and negotiate compensation events relating to design changes Identify and evaluate changes in design scope and their commercial impact Carry out measurement and take-offs of quantities Liaise with Supply chain partners, Design consultants, Internal...