Principal Waste Water Process Engineer

Company: AtkinsRéalis
Apply for the Principal Waste Water Process Engineer
Location: Epsom
Job Description:

Overview

Shape the Future of our cities and environments. Are you a Waste Water Process Engineer who is passionate about making the world a better place? Are you ready to take up a vital role in some of the UK’s most exciting and innovative projects? Join AtkinsRéalis and take a leading role in shaping the future of our cities and environments.

We are looking for an energetic and experienced Principal Waste Water Process Engineer to join our team within the Design & Advanced Technology (D&AT) Practice. You’ll be part of a talented, multi-disciplinary team delivering cutting edge iconic projects to our Water market clients – clients such as Thames Water, Anglian Water, South East Water, Southern Water, and other regional water authorities.

As a key member of our team, you’ll play a vital role in delivering transformational programmes for critical UK infrastructure, with opportunities to work on landmark engineering projects both domestically and internationally. We are committed to providing industry-leading solutions throughout the project lifecycle, adding value through client-side and construction-phase support.

Become part of a team where every voice matters. We foster a diverse and inclusive environment where world‑class talent thrives without boundaries.

Hybrid working: 3 days per week office/site based. This position is based in our Epsom, Peterborough or Cambridge offices.

Your role

The role will offer a challenging and rewarding opportunity to apply knowledge, experience, and problem‑solving skills whilst providing good opportunities for career development.

Responsibilities

  • Coordinate or manage members of a team of Process engineers for delivery of technical design work on small to complex multi‑disciplinary projects following relevant national and project specific design codes and standards, and to high‑quality levels in all areas of waste water treatment process and principles – conventional and advanced treatment technologies.
  • Responsible for producing and reviewing technical deliverables such as design reports, process calculations, process control philosophies, etc.
  • Work independently with minimal technical guidance. Exercise personal judgement to solve difficult problems and provide guidance to junior team members.
  • Provide technical input into project design deliverables for Process aspects of complex multi‑disciplinary projects and work with the project management team to successfully manage time and budgets to key project milestones and programmes.
  • Collaborate with stakeholders at all levels, including internal and external clients, operational staff, project teams, or external stakeholders.
  • Provide mentorship to less experienced colleagues and help to grow the Process Engineering capabilities within the process team.
  • Provide technical support for bid proposals.
  • Work closely with and within a multi‑disciplinary team in the UK and overseas, as per project requirements, to deliver integrated design solutions.
  • Adhere to quality assurance standards in design including checking and reviewing your own work as well as others.

About You

Key qualifications and experience

  • Chartered or Incorporated Engineer, preferably IChemE or CIWEM.
  • A degree in Chemical Engineering or equivalent (e.g. Environmental, Water and Waste water engineering, etc.).
  • Strong knowledge of and design experience in waste water treatment processes and principles: preliminary, primary, secondary, tertiary, quaternary treatment, sludge treatment and understanding of integrated principles and services including emissions, odour, carbon and energy management.
  • Practical knowledge of current design codes and standards as well as industry best practices, including CDM Regulations.
  • Experience of design and delivery of projects with adherence to UK safety and environmental regulations, process safety techniques (e.g. HAZOP), knowledge of capital and operational costs, risk assessments and whole life carbon assessments.
  • Proven experience in leading elements in treatment process design and integrating elements as part of an existing or new treatment process.
  • Proven experience in leading, coordinating or managing people in a Process engineering design delivery team for a project, as part of a design consultancy within a multi‑disciplinary environment.
  • Takes a broad perspective to identify innovative solutions to design problems.
  • Ability to work independently with minimal technical guidance.
  • Strong communication skills to convey technical concepts clearly and effectively within diverse multi‑disciplinary teams.
  • Proactive, highly motivated mindset with a collaborative approach to drive teamwork and share success across projects.

Meet some but not all the criteria? We’d still love to hear from you! Please submit your CV along with a cover letter letting us know your motivation for applying and highlighting how your skills and experience align with the role.

Rewards & benefits

Explore the rewards and benefits that help you thrive. Enjoy competitive salaries, employee rewards and a brilliant range of benefits you can tailor to suit your own health, wellbeing, financial and lifestyle choices. Training and professional development opportunities, hybrid working culture and flexible holiday allowances to balance a great job and fulfilling personal life.

About AtkinsRéalis

We’re AtkinsRéalis, a world‑class engineering services and nuclear organization. We connect people, data and technology to transform the world’s infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project managers, we can change the world. We’re committed to leading our clients across our various end markets to engineer a better future for our planet and its people.

Security clearance

This role may require security clearance. Offers of employment will be dependent on obtaining the relevant level of clearance. If necessary, it will be discussed with you at interview. The vetting process is delivered by United Kingdom Security Vetting (UKSV) and may require candidates to provide proof of residency in the UK of five years or longer.

We are committed to creating a culture where everyone feels that they belong – a place where we can all be ourselves, thrive and develop to be the best we can be. We offer a range of family‑friendly, inclusive employment policies, flexible working arrangements and employee resource groups to support all employees.

As an Equal Opportunities Employer, we value applications from all backgrounds, cultures and abilities.

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Posted: June 11th, 2026