Senior Mechanical Design Engineer – Development

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We’re looking for a Senior Mechanical Design Engineer to take a lead role within our Design Team, delivering mechanical solutions across water and wastewater treatment projects that make a real impact.

In this role, you’ll own the full mechanical design lifecycle — from concept through to commissioning — working closely with multidisciplinary teams to deliver safe, efficient, and sustainable solutions. You’ll also mentor junior engineers and help shape technical best practice across the business.

⚠️ This position requires attendance in the Glasgow office or on site at least 3 days per week

Leading mechanical design packages end‑to‑end ✅ Supporting procurement, installation, commissioning, and optimisation ✅ Carrying out technical reviews and risk assessments ✅ 7–10 years’ experience in mechanical design engineering (water/wastewater ideal)~ Degree in Mechanical Engineering (or related discipline) Proficiency in AutoCAD, SolidWorks, or similar tools You’ll be part of a business delivering essential, sustainable infrastructure , with the opportunity to influence technical direction, mentor others, and work on projects that positively impact communities and the environment.”, “datePosted”: “2026-05-23”, “hiringOrganization”: { “@type”: “Organization”, “name”: “Shirley Parsons”, “sameAs”: “https://uk.whatjobs.com/pub_api__cpl__439439242__4861?utm_campaign=publisher&utm_medium=api&utm_source=4861” }, “jobLocation”: { “@type”: “Place”, “address”: { “@type”: “PostalAddress”, “addressLocality”: “” } } }

Company: Shirley Parsons
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Senior Mechanical Design Engineer Hemel Hempstead | Permanent | ⏰ 40 hours | £50,000–£60,000

We’re looking for a Senior Mechanical Design Engineer to take a lead role within our Design Team, delivering mechanical solutions across water and wastewater treatment projects that make a real impact.

In this role, you’ll own the full mechanical design lifecycle — from concept through to commissioning — working closely with multidisciplinary teams to deliver safe, efficient, and sustainable solutions. You’ll also mentor junior engineers and help shape technical best practice across the business.

⚠️ This position requires attendance in the Glasgow office or on site at least 3 days per week

Leading mechanical design packages end‑to‑end ✅ Supporting procurement, installation, commissioning, and optimisation ✅ Carrying out technical reviews and risk assessments ✅ 7–10 years’ experience in mechanical design engineering (water/wastewater ideal)~ Degree in Mechanical Engineering (or related discipline) Proficiency in AutoCAD, SolidWorks, or similar tools You’ll be part of a business delivering essential, sustainable infrastructure , with the opportunity to influence technical direction, mentor others, and work on projects that positively impact communities and the environment….

Posted: May 23rd, 2026