Principal Mechanical Design Engineer

Alexandersandco; Derby; On-site; GBP 45,000 - 75,000; Full time

Job summary

An established industry player is seeking a Principal Mechanical Engineer to spearhead the design of innovative and cost-effective solutions for water and wastewater treatment projects. This role offers the chance to collaborate across disciplines, mentor junior engineers, and drive continuous improvement in design practices. Join a high-performing team where your contributions will make a significant impact in a forward-thinking environment. If you are passionate about engineering and looking for an opportunity to excel, this position is perfect for you.

Qualifications

• Degree-qualified Mechanical Engineer, ideally Chartered or working toward.
• Strong understanding of water/sewage treatment systems required.

Responsibilities

• Lead mechanical design of water and wastewater treatment projects.
• Collaborate across disciplines and mentor junior staff.

Skills

Mechanical Engineering

Water Treatment Systems

Design Team Management

Layout Optimisation

Communication Skills

Problem Solving

UK Driving License

Education

Degree in Mechanical Engineering

Job description

Join to apply for the Principal Mechanical Design Engineer role at Alexander Associates.

Job Overview

We’re looking for a Principal Mechanical Engineer to lead the mechanical design of water and wastewater treatment projects, ensuring innovative, cost-effective, and safety-compliant solutions.

You’ll collaborate across disciplines, support project bids, mentor junior staff, and help drive continuous improvement in design practices. This is a great opportunity to make a real impact in a high-performing, forward-thinking environment.

What We’re Looking For

• Degree-qualified Mechanical Engineer (Chartered or working toward)
• Strong understanding of water/sewage treatment systems
• Experience managing design teams
• Skilled in layout optimisation and design coordination
• Strong communicator and problem solver
• Full UK driving license

Only those with proof of right to work in the UK should apply for this role.

Seniority Level

Mid-Senior level

Employment Type

Full-time

Job Function

Engineering and Information Technology

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