Senior Process Engineer - Water (Engineering and Design)
Senior Process Engineer - Water (Engineering and Design)

Senior Process Engineer - Water (Engineering and Design)

Full-Time 43200 - 72000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Lead optimisation studies and develop innovative solutions for wastewater treatment.
  • Company: Costain enhances lives through smart infrastructure in energy, water, and transportation sectors.
  • Benefits: Enjoy a collaborative culture, opportunities for growth, and a commitment to sustainability.
  • Why this job: Join a dynamic team making a real impact on water management and sustainability.
  • Qualifications: Experience in wastewater treatment design and project management is essential.
  • Other info: We are a Disability Confident employer, promoting inclusivity in our hiring process.

The predicted salary is between 43200 - 72000 £ per year.

The Costain Asset Optimisation Team provides wastewater process engineering consultancy to support our clients across the UK in optimizing their assets and programmes. We are an agile team of process engineers working closely with operational teams to develop innovative practical and digital process solutions. Our team conducts optimisation studies at various stages, including feasibility, concept, optioneering, and preliminary design, to mitigate risks, ensure compliance, and enable low or no build solutions. Currently, we are experiencing increased engineering and design workload in the water sector and are recruiting a Senior Process Engineer to support AMP8 for clients such as United Utilities, Severn Trent Water, Southern Water, Thames Water, and Northumbrian Water.

Responsibilities

  • Lead teams to execute optimisation studies, ensuring quality, budget, and schedule adherence.
  • Develop process optimisation initiatives and solutions at site and programme levels.
  • Provide technical thought leadership and strategic consultancy advice to clients and joint venture partners.
  • Collaborate with business development, work winning, and marketing teams to develop and tender new opportunities.
  • Approve process design calculations, reports, presentations, and proposals.
  • Enhance team capability and service delivery within our AMP Frameworks.

Qualifications

Essential

  • Proven experience in the design, operation, and optimisation of wastewater treatment plants.
  • Knowledge of the UK water utility asset life cycle process.
  • Project management experience.
  • Background in engineering consultancy or contracting design environments, along with operational utility experience.
  • Ability to independently lead teams and projects.
  • Proactive, self-motivated, and solutions-oriented.
  • Strong interpersonal skills with the ability to collaborate and influence senior colleagues.

Desirable

  • Comprehensive knowledge of the UK Regulatory environment.
  • Experience across the full project lifecycle: scoping, design, construction support, commissioning, and handover.
  • Proven expertise in process engineering, including mass balance development, data analysis, design calculations, technology selection, equipment specification, process flow diagrams, control philosophies, and P&IDs.
  • Excellent commercial awareness and business development skills.

Qualifications

  • A degree in a process-related discipline (Essential).
  • Chartered Engineer and member of a relevant institution such as CIWEM or IChemE (Desirable).
  • Postgraduate qualifications (if applicable).

About Us

Costain is committed to improving lives through smart infrastructure solutions across energy, water, transportation, and defense markets in the UK. We focus on strategic, digitally optimized solutions to help our clients enhance performance, resilience, and sustainability. Our culture and values guide everything we do. We are a Disability Confident employer, offering interviews to applicants with disabilities who meet the minimum criteria.

Senior Process Engineer - Water (Engineering and Design) employer: Costain

Costain is an exceptional employer, offering a dynamic work environment where innovation and collaboration thrive. As part of the Asset Optimisation Team, you will have the opportunity to lead impactful projects in the water sector while benefiting from a culture that prioritises employee growth and development. With a commitment to smart infrastructure solutions and a focus on sustainability, Costain provides a rewarding career path for those looking to make a meaningful difference in the industry.
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Contact Detail:

Costain Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Process Engineer - Water (Engineering and Design)

✨Tip Number 1

Familiarise yourself with the specific wastewater treatment processes and technologies used by the major UK water utilities. Understanding their operational challenges and recent projects can give you an edge in discussions during interviews.

✨Tip Number 2

Network with professionals in the water sector, especially those who work at or with the companies mentioned in the job description. Attend industry events or webinars to make connections that could lead to referrals or insider information about the role.

✨Tip Number 3

Stay updated on the latest regulations and technological advancements in the UK water industry. Being knowledgeable about current trends will demonstrate your commitment to the field and your ability to provide strategic consultancy advice.

✨Tip Number 4

Prepare to discuss your project management experience in detail, particularly how you've led teams and managed budgets in previous roles. Highlighting specific examples of successful optimisation studies will showcase your capability to meet the demands of this position.

We think you need these skills to ace Senior Process Engineer - Water (Engineering and Design)

Wastewater Treatment Design
Process Optimisation
Project Management
Technical Consultancy
Data Analysis
Mass Balance Development
Process Flow Diagrams
Control Philosophies
P&IDs (Piping and Instrumentation Diagrams)
Interpersonal Skills
Commercial Awareness
Regulatory Knowledge (UK Water Sector)
Team Leadership
Problem-Solving Skills
Stakeholder Engagement

Some tips for your application 🫡

Understand the Role: Before applying, make sure to thoroughly read the job description for the Senior Process Engineer position. Understand the key responsibilities and qualifications required, as this will help you tailor your application.

Highlight Relevant Experience: In your CV and cover letter, emphasise your proven experience in wastewater treatment plant design and optimisation. Be specific about your project management experience and any relevant consultancy work you've done.

Showcase Technical Skills: Detail your technical skills related to process engineering, such as mass balance development, data analysis, and process flow diagrams. Mention any software or tools you are proficient in that are relevant to the role.

Personalise Your Application: Make your application stand out by personalising your cover letter. Address it to the hiring manager if possible, and explain why you are particularly interested in working with Costain and how your values align with theirs.

How to prepare for a job interview at Costain

✨Showcase Your Technical Expertise

As a Senior Process Engineer, it's crucial to demonstrate your knowledge of wastewater treatment plants and the UK water utility asset life cycle. Be prepared to discuss specific projects you've worked on, highlighting your role in design, operation, and optimisation.

✨Emphasise Project Management Skills

Given the responsibilities of leading teams and managing budgets, make sure to share examples of your project management experience. Discuss how you've successfully delivered projects on time and within budget, and any tools or methodologies you used.

✨Demonstrate Collaborative Abilities

Collaboration is key in this role. Prepare to talk about how you've worked with cross-functional teams, including business development and marketing, to secure new opportunities. Highlight your interpersonal skills and ability to influence senior colleagues.

✨Prepare for Technical Questions

Expect to face technical questions related to process engineering, such as mass balance development and control philosophies. Brush up on your knowledge of process flow diagrams and P&IDs, and be ready to explain your thought process behind design calculations.

Senior Process Engineer - Water (Engineering and Design)
Costain
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  • Senior Process Engineer - Water (Engineering and Design)

    Full-Time
    43200 - 72000 £ / year (est.)

    Application deadline: 2027-05-04

  • C

    Costain

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