Operational Technology (OT) Field Engineer

Do you have what it takes to transform society?

We are currently looking for OT Field Engineers to join our Asset Management Business Unit.

The role will be based in Warrington, with our Client (United Utilities) and willing to travel to and from sites throughout the Northwest of England is essential.

What does the role involve?

You’ll assist with the technical delivery of projects to achieve agreed time, cost and quality targets on behalf of the Client, as well as to provide technical input to Operational Technology related projects. The initial requirement is to support the Client in undertaking Event Duration Monitoring (EDM) Asset Surveys at approx. 270 No Treatment Sites and potential follow-on work.

Project Start-up

• Attending internal project start-up meetings.
• Providing technical perspectives for delivery phases.

Project Delivery

• Producing design deliverables to achieve the optimum engineering solution for the project.
• Delivering Instrumentation Control and Automation (ICA) projects, including PLC, HMI, SCADA, Telemetry, IoT technologies and Data Networks.
• Assessing, documenting, and communicating design change to the Project Manager (PM).
• Participating in technical reviews.
• Checking design outputs before submission to the PM/Technical Authority for approval.
• Attending internal project review meetings.

Post Project Review

• Providing technical input for continuous improvement feedback.

To be successful in this role you’ll

• Have electrical qualifications or apprentice trained.
• Have an Instrumentation and process control background including good knowledge of: PLC’s, SCADA, HMIs, IoT technologies and Data Networks.
• Have experience in site supervision of ICA/SCADA contractors working on multiple projects. Ideally this experience will include water and wastewater processing.
• Have experience of preparation and review of design documentation, such as User Requirement Specifications (URS’s).
• Have experience of preparation and review of scoping documentation, such as specifications for ICA /SCADA and telemetry equipment & services.
• Have experience of attending ICA and OT system FAT (Factory acceptance test), SAT (Site Acceptance Test), configuration auditing and UAT (User Acceptance Testing).
• Recognise that delivering sustainable outcomes involves applying sustainability skills to overcome internal and external challenges e.g., whole life costs, carbon, performance, and risks.
• Have good client relationship skills to be able to develop and build effective client relationships that lead to future opportunities.
• Have excellent communication skills both written and verbal with the ability to adapt your style to suit difference audiences.
• Have a relevant degree, HND or equivalent.

Employee Benefits

• Flexible and hybrid working (Flexworks Policy)
• Competitive pension contribution
• Life Assurance
• Private Medical Insurance
• Discretionary Annual Bonus Scheme
• Payment of two relevant professional subscriptions
• 25 days holiday plus bank holidays (with the option to purchase up to 5 additional days per year)
• Cycle2Work Scheme
• Employee Assistance Programme (wellbeing, mental health, financial and work advice)
• Employee discounts via Sweco Benefit Select (Faircare)
• Salary Sacrifice Electric Vehicle Scheme
• We plant a tree for all new starters!

Transforming society together, we're planning and designing sustainable communities and cities of the future.

Solving the great societal challenges of our time is more relevant, demanding and inspiring than ever before. At Sweco, we bring together experts with different perspectives and skills to develop solutions that address the challenges of urbanisation, harness the positive power of digitalisation and make societies more sustainable.

We offer our clients a combination of global expertise and local presence, adapted to their business and reality. Our ambition is to be our clients’ most relevant partner, working together to help them solve their challenges, today and into the future.

Sweco is committed to enabling all its colleagues to achieve a great balance between work and their other priorities, such as caring responsibilities, leisure activities, further learning or other interests. We offer flexible start and finish times, part time and hybrid working options so that you can flex your hours around your day to day needs.

Equality, Diversity & Inclusion

It’s important to us that that all our colleagues thrive at work - we strive to have a friendly and inclusive culture which respects the contribution individuals can bring to Sweco. We aim to promote equality, inclusivity and diversity for everyone.

Here at Sweco we positively encourage applications from suitably qualified and eligible candidates regardless of sex, race, disability, age, sexual orientation, gender reassignment, religion or belief, marital status, pregnancy or maternity/paternity.

We have signed the Armed Forces Covenant to ensure those who serve or have served, and their families, are treated fairly. To find out more The Armed Forces Covenant - Our Commitments | Sweco UK .

We are an accredited Real Living Wage Employer which reflects our commitment to fair pay and support for all colleagues.

We are also proud to be a Disability Confident Committed employer, and will interview applicants covered by the Equality Act 2010 that opt into the guaranteed interview scheme on the application form and meet the minimum criteria for the role.

If I have a disability, can I get help (e.g. “reasonable adjustments”) with the application process?

If you’re an applicant with a disability that requires a reasonable accommodation to complete any part of the application process or are limited in the ability or unable to use the online application system and need an alternative method for applying, please contact View email address on uk.workus.org for assistance.

In order to address your request the following information is needed:

• Name
• The best method for contacting you (Phone or email)
• The position title
• Requisition/vacancy number

Upon receipt of this information, we’ll respond to you promptly to obtain more information about your request.

Please note: we reserve the right to close vacancies before the advertised closing date.

Sweco UK&I have an internal resourcing team who are responsible for all recruiting activity. We have a Preferred Supplier List of trusted agencies who we work with on those “hard to fill” roles.

We have defined processes for recruitment applications and it is company policy not to accept speculative CVs. Any speculative CVs received into the business (whether to a manager or member of the resourcing team) will become the property of Sweco and the agency will not be eligible for an introductory fee.

Our Preferred Supplier List was reviewed in November 2025 and we are not looking to add any additional agencies. We’ll be reviewing the PSL again at the end of 2026 and non-compliance with the above statements could be detrimental to you having the opportunity to be included.

Our Talent Community for experienced professionals is a great way to keep up to date with our latest news, insights, future vacancies, as well as gaining access to exclusive events hosted by our experts.

To learn more Join Our Talent Community - Sweco United Kingdom