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- Tasks: Support Project Managers in delivering innovative UV lining projects and coordinating teams.
- Company: Join a leading water industry organisation with a strong focus on development.
- Benefits: Enjoy competitive salary, family-friendly leave, health support, and professional growth opportunities.
- Why this job: Make a real impact in the water sector while advancing your project management skills.
- Qualifications: Degree in Engineering or Project Management and experience in project coordination.
- Other info: Flexible working options and a vibrant culture promoting inclusion and belonging.
The predicted salary is between 40000 - 50000 £ per year.
This is a fantastic opportunity to contribute to one of the water industry’s most critical challenges while developing your expertise across data, network operations, and strategic resolution planning. Onsite is part of the South Staffordshire Group – a 3,000-strong organisation behind South Staffs Water, Cambridge Water, and several leading utility support businesses – offering long‑term development and career progression.
We’re looking for an Assistant Project Manager to support the delivery of specialist UV lining projects, working alongside experienced Project Managers from Early Contractor Involvement (ECI) through to completion. This is a great opportunity for someone with strong commercial awareness and project coordination experience who’s looking to develop into a full Project Manager role.
The Role
- Supporting Project Managers with planning, coordination, and delivery of UV projects
- Assisting with project execution plans, programmes, and schedules
- Coordinating with engineering, procurement, fabrication, and commissioning teams
- Supporting site activities, meetings, and inspections where required
- Assisting during the ECI phase, including scope definition, risk reviews, and constructability input
- Supporting cost estimates, budgets, pricing models, and supplier evaluations
- Tracking value of works completed (VOWD) and supporting monthly cost reporting
- Monitoring costs, variations, forecasts, and margin performance
- Supporting invoicing, progress claims, and change management
- Preparing project reports, dashboards, and maintaining project documentation
- Supporting HSEQ requirements and promoting a strong safety culture
Essential What you’ll need:
- Qualification in Engineering, Project Management, Construction Management, or similar
- Experience in a project support or coordination role within UV, water/wastewater, industrial, or process environments
- Understanding of ECI project delivery models
- Strong numerical and analytical skills with experience in cost tracking and margin control
- Ability to manage multiple tasks across concurrent projects
- Proficiency with tools such as MS Project, Excel, and ERP systems
Desirable
- Experience within the UV treatment or water infrastructure sector
- Exposure to contract administration and progress claims
- Knowledge of value engineering and cost optimisation techniques
What You’ll Get In Return
- Family‑Friendly Leave – Enhanced Maternity, Adoption, Paternity & Shared Parental Leave, Fertility Support, and up to 5 paid Carer’s Days.
- Financial & Life Assurance – Life Assurance cover (role dependent) and a Company Pension Scheme with salary sacrifice options.
- Health & Wellbeing – Employee Assistance Programme (8 counselling sessions) and 24/7 Virtual GP access for you and your dependents.
- Lifestyle & Perks – Cycle to Work Scheme and My Premier Benefits discounts, cashback, and vouchers.
- Professional Development – Hands‑on training and ongoing career development opportunities.
- Inclusion & Belonging – Active People Networks – Disability & Neurodiversity, Unity+, Women’s Network, Parent & Carer Networking Group and more.
- Performance & Recognition – Annual salary review, Reward & Recognition Scheme, and Long Service Awards.
- Flexibility & Opportunities – Overtime available and flexible shifts / hybrid working (role dependent).
Assistant Project Manager employer: OnSite Central Limited
Contact Detail:
OnSite Central Limited Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Assistant Project Manager
✨Tip Number 1
Network like a pro! Reach out to people in the industry, attend events, and connect with professionals on LinkedIn. You never know who might have the inside scoop on job openings or can refer you directly.
✨Tip Number 2
Prepare for interviews by researching the company and its projects. Understand their values and recent developments in the water industry. This will help you tailor your answers and show that you're genuinely interested in the role.
✨Tip Number 3
Practice your project management skills! Use mock scenarios to demonstrate how you'd handle challenges in project coordination. This will boost your confidence and help you articulate your experience effectively during interviews.
✨Tip Number 4
Don’t forget to apply through our website! We’ve got loads of opportunities waiting for you, and applying directly can sometimes give you an edge. Plus, it’s super easy to keep track of your applications!
We think you need these skills to ace Assistant Project Manager
Some tips for your application 🫡
Tailor Your CV: Make sure your CV is tailored to the Assistant Project Manager role. Highlight your project coordination experience and any relevant qualifications in Engineering or Project Management. We want to see how your skills match what we're looking for!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're passionate about the water industry and how your background makes you a great fit for our team. Keep it concise but engaging – we love a good story!
Showcase Your Skills: Don’t forget to showcase your numerical and analytical skills, especially if you have experience with cost tracking and margin control. Mention any tools you’re proficient in, like MS Project or Excel, as these are key for the role.
Apply Through Our Website: We encourage you to apply through our website for the best chance of getting noticed. It’s super easy, and you’ll be able to keep track of your application status. Plus, we love seeing applications come directly from our site!
How to prepare for a job interview at OnSite Central Limited
✨Know Your Projects
Before the interview, brush up on your knowledge of UV lining projects and the water industry. Familiarise yourself with recent developments and challenges in the sector. This will show your genuine interest and help you engage in meaningful discussions.
✨Showcase Your Skills
Be ready to discuss your experience in project support or coordination roles. Highlight specific examples where you've successfully managed multiple tasks or contributed to project execution plans. Use the STAR method (Situation, Task, Action, Result) to structure your answers.
✨Understand ECI Models
Since the role involves Early Contractor Involvement, make sure you understand what this means and how it impacts project delivery. Be prepared to discuss any relevant experiences you have with ECI and how you can contribute to this phase effectively.
✨Prepare Questions
Have a few thoughtful questions ready to ask at the end of the interview. This could be about the team dynamics, project timelines, or opportunities for professional development. It shows you're proactive and genuinely interested in the role and the company.
