Job Description

Job title: Senior Process Engineer


Reporting to: European Operations Director


Location: Bury St. Edmunds, Suffolk (Hybrid working opportunities available)


Hours: 40 hours per week

The Opportunity

You will be an experienced and driven

Chartered Chemical Engineer

to lead the

Process Engineering function

within our dynamic manufacturing environment. You will be responsible for the design, implementation, control, and optimisation of industrial processes to enhance safety, efficiency, productivity, and sustainability. This is a critical role that works cross-functionally to drive continuous improvement, support capital projects, and ensure operational excellence across the business.

What it's like to work here

We've been making the world taste better since 1886 and sell over 3000 products in more than 90 countries, but we're only just getting started. We're on an exciting journey and have ambitious plans to become the indispensable partner of choice for the world's leading flavour and fragrance houses, beverage and consumer brands. You can find out more about our exciting organisation here: TREATT | About Treatt the trusted global ingredients manufacturer


On joining Treatt, you'll become one of over 400 international experts, working together to collectively surprise and delight our customers. Nothing is more important to us than the happiness of our people as without them, we'd never succeed.


We think Treatt's a great place to work, but don't just take our word for it:


"Everyone wants your feedback and opinion; it feels like a place of study where nurturing and encouragement are the standard. It is very clear the hard work that goes into providing excellence for customers, but it is also very apparent that managers have the same goals for helping us all to progress."


"Joining my close and supportive team was the most enjoyable way to gain more skills and increase my knowledge"


"Treatt creates an environment to help you be the best you can, with no two days the same and opportunities always available to help you learn and develop. The people and the culture create a fantastic company to be part of"

What you'll be doing

The responsibilities of this role include but are not limited to:

Process Engineering Leadership

Lead the process engineering function in the design, implementation, control, and optimisation of processes.


Act as the technical authority for process and equipment improvements with a focus on safety, compliance, and productivity.


Lead and participate in process safety studies including HAZOP, LOPA, SIL determination, and risk reviews, ensuring timely and effective close-out of all actions.


Develop and deliver project scopes from concept to operation, defining requirements, deliverables, and success criteria.


Specify process equipment and technically appraise proposals against company standards, industry codes, and regulatory requirements.

Project & Technical Support

Oversee commissioning, validation, and handover of new equipment and processes, ensuring operational readiness and compliance.


Champion a strong process safety culture across the site, mentoring junior engineers in best practice.


Lead and support the installation and modification of equipment, ensuring alignment with production needs and upper-tier COMAH safety obligations.

Documentation & Compliance

Generate, review, and maintain engineering documentation including PFDs, P&IDs, cause & effect matrices, operating procedures, and functional design specifications.


Define and develop User Requirement Specifications (URS) and process design packages aligned to business needs, safety integrity, and regulatory requirements.


Collaborate with Quality to ensure robust quality plans are developed and followed.


Ensure site-wide compliance with internal standards and external regulations including COMAH, REACH, IFRA, FEMA, ATEX, and DSEAR.


Contribute to Safety Reports, COMAH submissions, inspections, and audits, ensuring effective engagement with regulators.

Continuous Improvement & Innovation

Drive continuous improvement (CI) initiatives to improve yield, reduce waste, enhance OEE, and lower operating costs.


Assess, introduce, and implement new technologies relevant to distillation, extraction, and other core processes.


Maintain awareness of industry developments and assess applicability for site-wide adoption.

People Leadership

Lead, develop, and manage the process engineering team, including resource planning, absence monitoring, performance management, and succession planning.


Support the development of a skills matrix to identify training needs and promote technical growth within the team.


Provide coaching and mentoring to encourage professional development, engagement, and high standards of conduct.


Engage with stakeholders, contractors, and regulatory authorities to deliver safe, compliant, and cost-effective engineering solutions.

What we're looking for

If you have a genuine passion for what you do and want to work in an environment that celebrates progress, teamwork and dedication, you're what we're after.


BSc in Chemical Engineering or equivalent relevant academic qualification or experience.


Chartered Engineer (CEng) status with IChemE or equivalent professional body.


Strong working knowledge of chemical manufacturing processes and equipment.


Experience with distillation, extraction, and filtration technologies in a production setting.


Demonstrated experience in leading HAZOPs, FMEA, and other risk assessment processes.


Familiarity with project lifecycle activities, including defining URS, scope, design, execution, and commissioning.


Familiarity with distributed control systems (DCS).


NEBOSH General Certificate or IOSH Managing Safely qualification (preferred).


Proficient in Microsoft Office tools.

What we'll do for you

We offer an excellent package which includes a competitive salary; a generous holiday entitlement as well as the opportunity to purchase additional holiday, we also offer a discretionary annual bonus, BUPA medical and dental schemes, pension scheme with 9% employer contribution, life assurance, group income protection, SAYE schemes and free shares.


With the encouragement and development you need, we help you to become your ultimate you. Beyond building a successful career, we also support the wishes and ambitions of our staff outside of the office in achieving a health work/life balance - the wellbeing of our staff is paramount to us, which we actively promote and support by regularly delivering a variety of wellbeing initiatives and offering responsibility based flexibility. There will also be opportunities to be actively involved in community and charity projects and to take part in numerous subsidized social events.

Polite Notice

We politely request that we are not contacted by any recruitment agencies. We have a preferred supplier list and high volumes of speculative calls from agencies negatively impact upon the efficiency of our business. Please help us to maintain the highest levels of customer service by respecting our wishes.