At a Glance
- Tasks: Lead innovative engineering projects and ensure safe, efficient processes in various industries.
- Company: Join a family-owned consultancy with over 25 years of engineering excellence.
- Benefits: Competitive contract rate, dynamic work environment, and opportunities for professional growth.
- Other info: Collaborative team culture with opportunities to mentor less experienced engineers.
- Why this job: Make a real impact on sustainability and progress in the UK's manufacturing sector.
- Qualifications: Chemical Engineering degree and strong experience in process engineering design.
The predicted salary is between 50000 - 65000 £ per year.
For over 25 years, Addison Project plc has delivered innovative, sustainable engineering solutions across the chemical, pharmaceutical, energy, and food & beverage sectors. As a family‑owned business with UK‑wide coverage, we combine technical excellence with a collaborative, client‑focused approach. Our fully integrated EPCM capability supported by strong CDM and HSSEQ leadership and accredited management systems ensures projects are delivered safely, efficiently, and to the highest standards from concept through to commissioning and start‑up.
If you’re passionate about engineering and want to join a dynamic, people‑focused consultancy driving progress and sustainability across the UK’s manufacturing and process industries, Addison Project is the place to grow your career.
Role: Senior Process Engineer (Contract – Outside IR35)
Location: Harlow
Contract: 12 months
Start Date: Spring 2026
Workscope: Addison Project Plc invites expressions of interest from suitably qualified independent (PSC) contractors to provide Senior Process Engineering Services. The services will be delivered from our Harlow office and will also require site presence for our project in Greater London.
Scope of Services:
- Producing process calculations, datasheets and equipment specification sheets
- Developing PFDs and P&IDs
- Producing alarm/trip schedules and cause & effect diagrams
- Generating process reports and control philosophies
- Supporting plant troubleshooting activities
- Producing equipment, piping, valve, inline item and instrument schedules
- Checking and approving technical documents
- Liaising with vendors and reviewing vendor information
- Participating in HAZID/HAZOP/LOPA reviews
- Completing Hazardous Area Classification and DSEAR assessments
Experience & Qualifications:
- Chemical Engineering degree (essential)
- Chartered Engineer status (desirable)
- Strong experience within a UK onshore process engineering design team within either a petrochemical, chemical, oil & gas, pharmaceutical or food and beverage industry
- Proven knowledge and experience of HAZOP, DSEAR and ATEX in a COMAH environment, including carrying out Hazardous Area Classification Assessments
- The ability to lead HAZOP Studies (desirable)
- Ability to work to a high level of autonomy and to produce high quality results
- Passion for delivering safe, fit for purpose, accurate design, completed to cost and programme
- Ability to be adaptable and to drive progress to meet targets
- Thorough approach with attention to detail and the ability to recognise and minimise risks
- Ability to work in a multi-discipline team
- Willing to lead a project with a small team; supporting less experienced engineers
- Willing to work in the Engineering design office in Harlow and attend site as necessary in Greater London
In accordance with current legislation, this position is only open to candidates who have indefinite eligibility to work in the UK. Unfortunately we are unable to offer sponsorship.
Senior Process Engineer in Harlow employer: Addison Group
Addison Project plc is an exceptional employer that prioritises employee growth and development within a collaborative and supportive work culture. Located in Harlow, our family-owned business offers a dynamic environment where engineers can thrive, contributing to innovative projects across various sectors while enjoying the benefits of a people-focused consultancy. With a commitment to sustainability and safety, we provide our team with the opportunity to lead impactful engineering solutions and advance their careers in a rewarding setting.
