Principal Process Engineer

Millbank
Trafford Park, Manchester, United Kingdom
Last month
Seniority
Lead
Posted
14 Apr 2026 (Last month)

Are you a Principal Process Engineer ready to take full technical ownership of complex water industry designs?

Do you have deep expertise in wastewater treatment processes and the authority to approve designs, calculations and technical standards?

Are you confident leading multidisciplinary teams and representing process solutions at HAZOPs and senior technical reviews?

If this role looks of interest, then click apply to take those next steps!

The Opportunity

An exciting opportunity has become available for a proven Principal Process Engineer to spearhead key water infrastructure projects for one of our key engineering EPC clients. This role will put you in a pivotal role, leading a team of Engineers. As Principal Process Engineer, you’ll have a key influence in delivering high-profile projects across the regulated UK water sector

Your duties and responsibilities will be

Providing technical leadership to ensure all process design outputs meet safety, quality and regulatory expectations

Developing and selecting efficient process solutions based on scope, site data and project constraints, and clearly communicating these to internal teams and clients

Leading, mentoring and developing engineers and graduates, setting direction and maintaining high technical standards

Reviewing and approving process calculations, mass balances, hydraulic sizing, flow diagrams, control philosophies and commissioning strategies

Interpreting, briefing and guiding teams on technical standards, procedures and updates, while contributing expert input to projects and tenders

You will have the following qualifications & experience:

Significant process design experience within the regulated UK water industry, with strong delivery of wastewater treatment solutions

In?depth knowledge of wastewater unit processes and treatment plant design

Accredited with a BEng or MEng in Chemical Engineering or equivalent

Strong digital and document control capability, with experience managing design change and review processes

It’s great if you also have the following

Chartered Engineer status with a recognised professional institution

Contact Josh on (phone number removed) to discuss this role further

Millbank Holdings Ltd is an equal opportunities employer committed to creating an inclusive and diverse workforce. We welcome applications from all suitably qualified individuals, regardless of background, and encourage candidates from underrepresented groups to apply.

We are proud to be a member of the Disability Confident Scheme, and we are committed to ensuring an accessible and supportive recruitment process for everyone. If you require any adjustments at any stage, please let us know and we’ll do our best to accommodate.

Millbank operates as both an Employment Agency and an Employment Business

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