Senior Process Engineer
Posted 1 week ago by Addison Project
Negotiable
Outside
Undetermined
Harlow, Essex
Summary: The Senior Process Engineer role at Addison Project plc involves providing comprehensive engineering services for projects in the manufacturing and process industries. The position requires a strong background in process engineering, particularly within the UK onshore sector, and entails both office-based work and site presence in Greater London. The successful candidate will be responsible for producing technical documentation, supporting troubleshooting activities, and leading HAZOP studies. This contract role is outside IR35 and is expected to last for 12 months, starting in Spring 2026.
Key Responsibilities:
- 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
Key Skills:
- Chemical Engineering degree (essential)
- Chartered Engineer status (desirable)
- Strong experience within a UK onshore process engineering design team in petrochemical, chemical, oil & gas, pharmaceutical, or food and beverage industries
- Proven knowledge and experience of HAZOP, DSEAR, and ATEX in a COMAH environment
- Ability to lead HAZOP Studies (desirable)
- Ability to work autonomously and produce high-quality results
- Passion for delivering safe, accurate design completed to cost and programme
- Adaptability and drive to meet targets
- Attention to detail and risk minimization
- Ability to work in a multi-discipline team
- Willingness to lead a project with a small team
- Willingness to work in the Engineering design office in Harlow and attend site as necessary in Greater London
Salary (Rate): undetermined
City: Harlow
Country: UK
Working Arrangements: undetermined
IR35 Status: outside IR35
Seniority Level: undetermined
Industry: Other
Senior Process Engineer- Addison Project, Harlow
Addison Project plc delivers comprehensive concept to completion design engineering, project and construction management services covering CDM, HSSEQ leadership, commissioning and startup support. Our UKAS accredited systems and procedures underpin the effective management and control of engineering, procurement, and construction projects across the manufacturing and process industries.
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.
How to Express Interest
If you are an experience Lead Piping Designer looking for a flexible, Outside IR35 opportunity and would like to be considered for this role, please submit your application today.
Important Information for Applicants:
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.
Notice to Recruitment Agencies:
We do not accept unsolicited CVs or profiles from recruitment agencies. Please do not forward CVs to any of our employees. The Company will not be liable for any fees associated with unsolicited submissions.
Application Outcome:
If you have not heard from us within two weeks of submitting your application, unfortunately you have not been shortlisted at this time. If this is the case, we thank you for your interest and wish you every success in your future career.