Principal Mechanical Design Engineer - Water/Wastewater

RSE Water; Newton Aycliffe; Remote; GBP 70,000 - 95,000; Full time

Benefits offered by this job

Industry-leading salary

Car allowance

Flexible career development

31 days holiday

Holiday buy/sell

Company pension

Cycle to work

Gym membership discount

Professional fees paid

Employee discount platform

EV/Hybrid car lease

Health professionals access

Job summary

RSE Water is seeking a Principal Mechanical Design Engineer to join our in‑house, multidisciplinary design team in the UK. You will lead mechanical design activities from scoping to implementation, ensuring compliance with client specifications and regulatory standards, with a focus on low carbon solutions.

You will mentor engineers, manage multiple projects, and provide technical guidance on mechanical matters to the project team and senior management.

Qualifications

• Degree/HND/HNC in Mechanical Engineering or equivalent.
• Chartered engineer with a relevant professional body preferred.
• Mechanical design engineering experience within municipal water/wastewater treatment sector.
• Design management/lead experience.
• Programme/financial management experience.
• Experience across all design stages from optioneering/FEED to construction support/As-Built.
• Ability to work on multiple projects concurrently.
• Full UK Driving Licence.

Responsibilities

• Meeting with clients to discuss specific intervention requirements.
• Leading planning and implementation of projects with Delivery Management teams.
• Providing technical guidance on Mechanical matters to the project team and Senior Management.
• Line management and development of mechanical engineers within the team.
• Taking the lead on development of Mechanical design deliverables by you and your team.
• Mentoring, identifying and developing the next generation of Mechanical Engineering talent.
• Ensuring compliance with Client specifications and current regulatory/industry standards.

Skills

Mechanical design

Project leadership

Programme management

Financial management

Multi-project management

Education

Degree/HND/HNC in Mechanical Engineering

Chartered engineer

Job description

RSE Water is seeking a Principal Mechanical Design Engineer to join our in‑house, multidisciplinary design team in the UK. You will lead mechanical design activities from scoping to implementation, ensuring compliance with client specifications and regulatory standards, with a focus on low carbon solutions.

You will mentor engineers, manage multiple projects, and provide technical guidance on mechanical matters to the project team and senior management.