Senior Process Engineer

Joining Arup 

Arup’s purpose, shared values and collaborative approach has set us apart for 80 years, guiding how we shape a better world.  Arup’s civil engineering expertise helps us to find solutions for our clients in built and natural environments.  Our team work on a diverse range of projects from city-wide and region-wide Masterplanning, to infrastructure designs for water, energy, rail, highways, aviation and building property projects.

The Opportunity

We are looking for a candidate with a background in Process engineering design on multi-disciplinary projects within the municipal and industrial water sectors. With our depth and breadth of skills, our team is currently involved in many exciting projects across the Energy, Water and Resources sectors. Whilst the team is based  mainly in  Southampton, our work involves supporting UK and international projects, integrating with teams in our offices across the globe. 

As a senior engineer you are likely to have ability to work across the project life cycle from developing concept designs to outline and detailed designs, and skills working in or directing process engineering teams to ensure production of deliverables to established timelines and within budget.

What you’ll do 

You will co-ordinate the work of others and liaise with engineers of other disciplines, imparting your knowledge and experiences. You will be working in highly regulated sectors, within a gated design and project delivery process. You will be involved in the development of mass and energy balances, process data sheets, control philosophies, and commissioning plans. You will also be involved in report writing and the development of fee proposals and feasibility studies of plant operating and capital costs. We would expect you to have a practical comprehension of how your designs will be implemented, and of digital approaches to solve our problems, including the relevant current analysis and design software.

We operate an enviable graduate training scheme, which is accredited by the IChemE, and as a senior engineer you will be expected to join the mentoring programme and help to shape our future pipeline of process engineers. We are looking for candidates with experience of a variety of technologies needed for the treatment of potable water, wastewater and biosolids processing.

The successful candidates are likely to have design experience of the following: fixed and suspended growth systems, anaerobic treatment of biosolids and high-strength effluent, biogas handling and upgrading, membrane separation, solids filtration, disinfection, oxygenation, thermal hydrolysis, nutrient removal processes, chemical storage and dosing systems, along with some experience of HazOp, DSEAR, COMAH, SIL determination, flammable gas handling and compression.

What we’re looking for: 

• Degree qualified in chemical engineering or similar 
• Experience of working in or leading process engineering teams to ensure production of deliverables to agreed timelines, within budget. 
• Use of Biowin/GPS-X modelling software. 
•  Experience acting as the process designer in the HAZOP teams. 
• Chairing HazOp studies Resolution of technical matters and ideally experience of working in highly regulated sectors. 
• Development of fee proposals, creation of PID’s, plant layouts, GA and creation of energy and mass balances. 
• Development of feasibility studies and plant operating and capital costs

In addition to your technical skills, we need people who have the following attributes:

• Experience of digital approaches to solve our problems including the relevant current analysis and design software 
• Support and mentor junior team members
• Have or be actively working towards a professional qualification with a relevant professional body, such as the Institution of Civil Engineers.

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What we offer you
At Arup, we care about each member’s success, so we can grow together.

Guided by our values, we provide an attractive total reward package that recognizes the contribution of each of our members to our shared success. As well as competitive, fair and equitable pay, we offer a career in which all of our members can belong, grow and thrive – through benefits that support health and wellbeing, a wide range of learning opportunities and many possibilities to have an impact through the work they do.

We are owned in trust on behalf of our members, giving us the freedom, with personal responsibility, to set our own direction and choose work that aligns with our purpose and adds to Arup’s legacy. Our members collaborate on ambitious projects to deliver remarkable outcomes for our clients and communities. Profit Share is a key part of our reward, enabling members to share in the results of our collective efforts.

We also provide Private medical insurance, Life assurance, Accident insurance and Income protection cover. In addition, you’ll have access to flexible benefits to help you look after all aspects of your wellbeing and give you the freedom and flexibility to find the best solutions for you, your family, and your individual needs.

Different people, shared values

Arup is an equal opportunity employer that actively promotes and nurtures a diverse and inclusive workforce. We welcome applications from individuals of all backgrounds, regardless of age (within legal limits), gender identity or expression, marital status, disability, neurotype or mental health, race or ethnicity, faith or belief, sexual orientation, socioeconomic background, and whether you’re pregnant or on family leave. We are an open environment that embraces diverse experiences, perspectives, and ideas – this drives our excellence.

Guided by our values and alignment with the UN Sustainable Development Goals, we create and contribute to equitable spaces and systems, while cultivating a sense of belonging for all. Our internal employee networks support our inclusive culture: from race, ethnicity and cross-cultural working to gender equity and LGBTQ+ and disability inclusion – we aim to create a space for you to express yourself and make a positive difference. Discover more about life at Arup at www.arup.com/careers/your-life-at-arup

We are committed to making our recruitment process and workplaces accessible to all candidates. Please contact maria.mindrut@arup.com to let us know if you need any assistance or reasonable adjustments throughout your application or interview process, and/or to perform the essential functions of the role. We will do everything we can to support you.

Our Application Process

To understand what to expect next, please visit  https://www.arup.com/careers/arup-careers-uk-application-process

Stay safe online – Arup will never ask for your bank details as part of our recruitment process.

Recruitment Agencies - We have a Preferred Supplier List of trusted partners to assist us when required and do not acknowledge any speculative CVs or unsolicited candidate introductions from agencies not on the list.

Closing Date: 29.07.2026

We may close the role earlier than the advertised date should we receive a large number of applications, so please ensure you apply early.

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@WaterWest