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Senior Mechanical Engineer, Water

Job in Chesterfield, Derbyshire, WS14, England, UK
Listing for: AECOM
Full Time position
Listed on 2026-07-21
Job specializations:
  • Engineering
    Water Engineer, Environmental Engineer, Civil Engineering, Water Management
Salary/Wage Range or Industry Benchmark: 55000 - 75000 GBP Yearly GBP 55000.00 75000.00 YEAR
Job Description & How to Apply Below
  • Legal Entity: AECOM Infrastructure and Environment UK Limited
  • Business Line:
    Water
  • Work Location Model:
    Hybrid
  • Operating Group:
    International
  • Primary

    Location:

    UK - Chesterfield
Company Description

Work with Us. Change the World.

At AECOM, we’re delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world’s trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for future generations.

There has never been a better time to be h accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world.

We’re one global team driven by our common purpose to deliver a better world. Join us.

Job Description

Are you ready to shape the future of water infrastructure?

We are looking for a Senior Mechanical Engineer to join our established and growing Water Team with opportunities to be based across our North and Midlands offices – Birmingham, Chesterfield, Leeds and Manchester – while also benefiting from our flexible hybrid working model.

Here’s what you’ll do:

Mechanical Design

  • Undertake the design and review of mechanical elements in wastewater and water infrastructure / treatment projects, including:
    • Site visits to carry out site surveys and the support of liaisons with clients, contractors & suppliers
    • Pumping stations designs
    • Headloss calculations and pumping system analysis
    • Pump selection
    • Designs of screens, grit removal plant, penstocks and valves etc.
    • Odour control systems
    • Plant and pipework layouts
    • Technical specifications and reports, Wimes datasheets, valve schedules, equipment schedules, lifting strategies and P&'s

Project Stages:

  • Engage in all design stages, including Feasibility, Outline, Detail, and Construction Design, ensuring compliance with National and International Design Standards.
  • Work closely with other discipline teams both locally and nationwide to deliver high-quality technical solutions.
  • Communicate effectively with clients and collaborators throughout the design and planning phases.
  • Delegate tasks, direct and oversee the work of others and act as a technical mentor to more junior staff.

Bid Support:

  • Assist in the preparation and management of bids and proposals, interfacing with clients to understand their needs and expectations.

Project Delivery:

  • Ensure the delivery of quality designs within agreed budgets and timelines, supporting a range of AECOM’s clients, including Severn Trent Water, Yorkshire Water, Wessex Water, South West Water, Southern Water, Thames Water, and Irish Water.
  • Produce and review client deliverables, including calculations, drawings and technical reports to relevant standards and procedures

AECOM’s digital strategy is driving the adoption of global digital solutions internally in our design process, to improve quality and consistency and streamline activities. You will help shape these digital offerings and use them on projects, including BIM, Projectwise, intelligent P&’s and AECOM’s own tools developed in-house, such as our pumping station generator.

If you’re passionate about innovation and turning bold ideas into reality, AECOM welcomes you. Join our team, where we don’t just construct infrastructure but also uplift communities and enhance lives. Why not follow our AECOM Water page on Linked In to stay updated on the impactful projects we’re working on and see firsthand the difference we’re making in the industry!

Come & Grow with Us.

Become part of our dynamic Water business, which boasts around 700 experts across the UK & Ireland, including 300 specialists across our England & Wales Water team. Collaborate with top-tier civil, mechanical, electrical, and process engineers to deliver a variety of captivating projects, from small initiatives to large-scale…

Position Requirements
10+ Years work experience
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