Senior Process Engineer

Kier Group; Falmer; On-site; GBP 65,000 - 90,000; Full time

Job summary

Kier Group plc. is seeking a Lead Process Engineer in the United Kingdom to provide technical leadership across water and wastewater projects from feasibility to detailed design and implementation. You will act as the technical authority for treatment processes and mentor engineering teams.

Working with multidisciplinary design teams and clients, you will develop robust process solutions, drive performance improvements, and support bids and tenders while upholding safety and compliance standards.

Qualifications

• Degree in Chemical Engineering, Process Engineering, or Environmental Engineering.
• Chartered Engineer or working towards chartership with a professional institution.
• Significant experience in water and wastewater sector and leading process engineering on complex infrastructure projects.
• Strong knowledge of drinking water treatment, wastewater treatment, sludge treatment and resource recovery processes.
• Experience in process modelling, hydraulic design, treatment optimisation, and stakeholder engagement.

Responsibilities

• Lead the development of process designs, calculations, mass balances, and performance assessments.
• Produce and review P&IDs, design reports, technical specifications and process narratives.
• Provide technical assurance and governance for feasibility studies, option evaluations, and business cases.
• Collaborate with multidisciplinary teams to ensure integrated engineering solutions and analyse operational data for optimisation.
• Mentor engineers and contribute to bids, tenders and drive innovation across the business.

Skills

Process modelling

Hydraulic design

Treatment optimisation

Stakeholder engagement

Mentoring engineers

Education

Degree in Chemical Engineering, Process Engineering or Environmental Engineering

Job description

Hours: 45 Hours Per Week - some flexibility on hours available if desired, just let us know when you speak to us.

We are unable to offer certificates of sponsorship to any candidates in this role.

As a Lead Process Engineer, you'll provide technical leadership and specialist process engineering expertise across water and wastewater treatment projects. From feasibility and concept development through to detailed design, implementation support, and operational performance improvement, you'll serve as the technical authority for treatment processes. Working collaboratively with project managers, multidisciplinary design teams, and clients, you'll help develop and deliver robust process solutions that provide long-term value and performance while mentoring engineering teams and supporting continuous improvement.

What will you be responsible for?

• As a Lead Process Engineer, you'll be working within the team, supporting them in delivering safe, compliant, sustainable, and efficient engineering solutions.
• Your day to day will include: Acting as a technical authority and leading the development of process designs, calculations, mass balances, and performance assessments
• Producing and reviewing process flow diagrams, P&IDs, design reports, technical specifications, and process narratives
• Providing technical assurance and governance while supporting feasibility studies, option evaluations, and business cases
• Collaborating with multidisciplinary teams to ensure integrated engineering solutions and analysing operational data to identify optimisation opportunities
• Mentoring and developing engineers while contributing to bids, tenders, and promoting innovation across the business

Qualifications

• You hold a degree in Chemical Engineering, Process Engineering, Environmental Engineering, or a related discipline
• You're a Chartered Engineer or working towards chartership with an appropriate professional institution
• You have significant experience within the water and wastewater sector and a strong background in leading process engineering activities on complex infrastructure projects
• You possess strong knowledge of drinking water treatment, wastewater treatment, sludge treatment, and resource recovery processes, including nutrient removal technologies
• You have demonstrable experience in process modelling, hydraulic design, treatment optimisation, and excellent stakeholder engagement and communication skills

Making Kier a diverse and inclusive place to work is a huge priority for us. We're proud of the steps we've taken so far, but we know we must always do more. Our employees are key in shaping Kier's diversity and inclusion initiatives and our people have made a huge impact on how we work, by using their experiences to shape our policies. You can see our D&I action plan here.

As a Disability Confident employer, we will ensure that a fair and proportionate number of disabled applicants that meet the minimum criteria for this role will be offered an interview.