Principal Mechanical Design Engineer at Rse in Portsmouth, England, United Kingdom | Kablio

Role

Description

design delivery

design oversight

compliance

cost estimation

change control

stakeholder liaison

Oversee design aspects of projects from inception to implantation.
Develop design deliverables.
Liaise with all key stakeholders for the projects.
Ensure compliance with Client specification and current regulatory standards.
Assemble contract works information documents.
Prepare work scope estimates/quotations.
Consider project health and safety, quality, and environmental matters.
Complete checking and approval processes.
Take responsibility as Design Lead on allocated projects.
Implement project change control and programme requirements.

Requirements

mechanical design

water wastewater

design management

mechanical degree

driving licence

Mechanical design engineering experience within municipal water/wastewater is highly desirable.
Possess the ability to work on multiple projects consecutively.
Experience of working at all design stages is highly desirable.
Full UK Driving Licence.
Degree/HND/HNC in Mechanical Engineering or equivalent.
Design management experience is highly desirable.
Experience of working in a multidiscipline design team.

Benefits

EV/Hybrid Car Lease Scheme
A flexible career development path, with no restrictions on where your career can go
Employee Discount Platform
Access to our network of health professionals including mental health champions and Occupational Health Nurse.
Holiday Buy / Sell Scheme
Industry-leading salary based on your experience
Private Healthcare (Personal)
Professional Fees Paid
Car allowance
Company Pension Scheme
Discounted National Gym Membership
Cycle to Work
Holiday Allowance of 31 days per year, rising to 33 days per year after 2 years’ service

Training + Development

Information not given or found

Interview process

Information not given or found

Visa Sponsorship

Information not given or found

Security clearance

Information not given or found

Company

Overview

1982

Founded

The company was established in 1982, marking the beginning of its journey as a water purification contractor.

Four decades

Experience

Over 40 years, the company has evolved into a full-service innovator and leader in water treatment solutions.

It evolved into a full‑service innovator, designing, fabricating and commissioning modular water treatment plants across the UK.
Its financial growth is anchored in delivering award‑winning, cost‑efficient engineered plants, often via offsite assembly and pre‑commissioning.
Typical projects range from ceramic membrane filtration to bespoke ultrafiltration and ion‑exchange systems for water and wastewater.
RSE’s Innovations Hub adapts breakthrough tech—like MABR, nature‑based and zero‑chemical systems—from renewables and other sectors.
It stands out with transportable, 3D‑BIM‑designed plants assembled in clean‑factory settings, minimizing onsite disruption.
Facilities span from Inverness to London, enabling rapid deployment of modular solutions for varied urban and rural clients.

Culture + Values

“Commitment to operational Zero Harm and placing safety first in every situation.”
“Technical excellence through ongoing investment in emerging technologies and sharing expertise.”
“Customer success via transparency, ongoing communication and partnering from first meeting to project completion.”
“Nurturing personal growth by encouraging clear expectations, training plans and career development support.”
“Honesty and integrity in all relationships, led by example through ethical and open communication.”

Environment + Sustainability

14% Electricity

Renewable Energy Usage

A significant portion of electricity consumption is powered by solar energy installations.

300kW Solar

Renewable Installations

Over 300 kilowatts of solar panels have been installed as part of sustainability initiatives.

10% Reduction

Emissions Performance

Achieved a 10% reduction in operational carbon emissions per £M revenue in the latest fiscal year.

25% Carbon

Construction Efficiency

Modular off-site construction reduces carbon emissions by up to 25%, also cutting site traffic by 95%.

Operational Net Zero (Scope 1+2) by 2030; full Net Zero (Scope 1, 2 & 3 including embodied supply chain carbon) by 2035.
Introduction of HVO fuel across sites, plus EV charge‑points and low‑carbon commuting schemes.
Support for verified offset projects (Verra, Gold Standard, UN CER) via Carbon Neutral Britain including kelp restoration, mangrove blue carbon and Costa Rica reforestation.
Innovations include first ceramic‑membrane water plant in Scotland; products designed to help clients meet Net Zero targets.

Inclusion & Diversity

Graduate and Apprenticeship programmes to develop early‑career talent.
Employee health & wellbeing mission: erasing stigma around mental health; official supporter of Lighthouse Construction Charity.

Articles

Projects

Careers

About Us

Company

Overview

1982

Founded

The company was established in 1982, marking the beginning of its journey as a water purification contractor.

Four decades

Experience

Over 40 years, the company has evolved into a full-service innovator and leader in water treatment solutions.

It evolved into a full‑service innovator, designing, fabricating and commissioning modular water treatment plants across the UK.
Its financial growth is anchored in delivering award‑winning, cost‑efficient engineered plants, often via offsite assembly and pre‑commissioning.
Typical projects range from ceramic membrane filtration to bespoke ultrafiltration and ion‑exchange systems for water and wastewater.
RSE’s Innovations Hub adapts breakthrough tech—like MABR, nature‑based and zero‑chemical systems—from renewables and other sectors.
It stands out with transportable, 3D‑BIM‑designed plants assembled in clean‑factory settings, minimizing onsite disruption.
Facilities span from Inverness to London, enabling rapid deployment of modular solutions for varied urban and rural clients.

Culture + Values

“Commitment to operational Zero Harm and placing safety first in every situation.”
“Technical excellence through ongoing investment in emerging technologies and sharing expertise.”
“Customer success via transparency, ongoing communication and partnering from first meeting to project completion.”
“Nurturing personal growth by encouraging clear expectations, training plans and career development support.”
“Honesty and integrity in all relationships, led by example through ethical and open communication.”

Environment + Sustainability

14% Electricity

Renewable Energy Usage

A significant portion of electricity consumption is powered by solar energy installations.

300kW Solar

Renewable Installations

Over 300 kilowatts of solar panels have been installed as part of sustainability initiatives.

10% Reduction

Emissions Performance

Achieved a 10% reduction in operational carbon emissions per £M revenue in the latest fiscal year.

25% Carbon

Construction Efficiency

Modular off-site construction reduces carbon emissions by up to 25%, also cutting site traffic by 95%.

Operational Net Zero (Scope 1+2) by 2030; full Net Zero (Scope 1, 2 & 3 including embodied supply chain carbon) by 2035.
Introduction of HVO fuel across sites, plus EV charge‑points and low‑carbon commuting schemes.
Support for verified offset projects (Verra, Gold Standard, UN CER) via Carbon Neutral Britain including kelp restoration, mangrove blue carbon and Costa Rica reforestation.
Innovations include first ceramic‑membrane water plant in Scotland; products designed to help clients meet Net Zero targets.

Inclusion & Diversity

Graduate and Apprenticeship programmes to develop early‑career talent.
Employee health & wellbeing mission: erasing stigma around mental health; official supporter of Lighthouse Construction Charity.

Articles

Projects

Careers

About Us