Senior Process Engineer

Kier Group; England; On-site; GBP 70,000 - 90,000; Full time

Job summary

Kier Group is seeking a Lead Process Engineer to provide technical leadership across water and wastewater projects within our Southern Water Framework, including office and site locations in Falmer. You will guide feasibility through to detailed design, supporting operational performance improvements and mentoring teams.

The role requires significant experience in water/wastewater, process modelling, and a Chartered Engineer status or progression towards chartership, with strong collaboration

Qualifications

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

Responsibilities

• Act as technical authority and lead development of process designs, calculations, mass balances and performance assessments.
• Produce and review process flow diagrams, 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 to identify optimisation opportunities.
• Mentor engineers and contribute to bids, tenders and promote innovation across the business.

Skills

Process modelling

Process engineering leadership

Water/wastewater expertise

Hydraulic design

Stakeholder engagement

P&IDs & design documentation

Education

Degree in Chemical/Process/Environmental Engineering or related

Chartered Engineer or working towards chartership

Job description

We're looking for a Lead Process Engineer to join our Southern Water Framework in office and site locations.

Location: Falmer
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

What are we looking for?

This role of Lead Process Engineer is great for you if:

• 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

Rewards and benefits

We're proud to be able to offer our brilliant people a wide variety of benefits that you can tailor to your needs. You can see more information of benefits here .

Diversity and inclusion

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.

We look forward to seeing your application to #joinkier.