ROLE: Technical Process Design Manager
LOCATION: UK Wide Role
CONTRACT: Full Time
At Marlowe Environmental Services - Part of a Mitie Company, our people are our greatest strength, and our promise is to create a place to work where you can thrive and be your best every day.
Mitie is an accredited Real Living Wage Employer, meaning every role is paid at or above the independently calculated Real Living Wage, reflecting our commitment to fair pay and responsible employment.
- Design full industrial effluent treatment plants from feasibility through to detailed design.
- Develop and optimise process flow diagrams (PFDs) and P&IDs.
- Specify equipment including pumps, tanks, chemical dosing systems, and filtration technologies.
- Develop and optimise chemical dosing regimes (e.g. pH correction, coagulation, flocculation, nutrient dosing).
- Undertake process calculations, mass balances, and performance modelling.
- Support project teams during installation, commissioning, and troubleshooting phases.
- Liaise with clients to understand wastewater characteristics and treatment requirements.
- Ensure all designs comply with environmental regulations and industry standards.
- Contribute to innovation, continuous improvement, and technical excellence within the engineering team.
Applicants must meet the below defined requirements for the role.
- Degree‑qualified in Chemical Engineering, Process Engineering, Environmental Engineering, or similar discipline.
- Proven experience in industrial wastewater or effluent treatment process design.
- Strong understanding of chemical dosing systems and treatment chemistry.
- Experience with treatment technologies such as DAF, MBBR, SAFS, membrane systems, and dewatering screw presses (or similar).
- Ability to produce and interpret PFDs and P&IDs accurately.
- Strong analytical, problem‑solving, and technical decision‑making skills.
- Comfortable working independently and collaboratively within multidisciplinary project teams.
- Excellent communication skills with both technical and non‑technical stakeholders.
- A key technical role within a growing wastewater engineering team.
- Access to Mitie's Choices lifestyle benefits platform, including extra holiday purchase, dental and critical illness cover, and technology schemes.
- Virtual GP access for you and your household.
- Financial wellbeing support through Salary Finance.
- MiDeals high‑street discounts, cycle‑to‑work scheme, and gym offers.
- Life cover up to 4× salary, enhanced pension contributions, save‑as‑you‑earn scheme, and the Mitie Matching Share Plan (with potential free shares).
- Recognition through Mitie Stars, with monthly cash prizes and an annual £10,000 award.
- Strong focus on career development, training, and long‑term progression.
There's a place for you at Mitie, join us today!
