Process Safety Engineer: Roles, Skills and Training
Preventing major accidents in the process industries, and how to build a career doing it
When a chemical plant, refinery or pharmaceutical site handles hazardous materials, the consequences of a failure can be severe. A process safety engineer helps prevent fires, explosions and toxic releases by finding hazards early and making sure the right safeguards are in place. It is a specialist role with strong demand and good progression. This guide explains what the job involves, the essential skills and training, and how to move into it.
What does a process safety engineer do?
The role focuses on preventing major accidents rather than everyday workplace injuries. Typical work includes:
- Leading or taking part in hazard studies on new and existing plant.
- Assessing risks and deciding what safeguards are needed.
- Reviewing designs, changes and operating procedures.
- Specifying and checking safety systems such as relief valves and trips.
- Investigating incidents and near misses.
- Preparing safety reports for regulators.
The work involves close collaboration with designers, operators, maintenance teams and managers, so it suits people who are thorough, curious and confident in raising concerns.
7 essential skills
1. Hazard identification
A HAZOP (hazard and operability study) is a structured team review of a design that asks what could go wrong with each part of a process. Leading or scribing HAZOPs is a core skill.
2. Risk assessment
Methods such as LOPA (layer of protection analysis), bow-tie diagrams and quantified risk assessment help decide whether risks are low enough.
3. Functional safety
Functional safety covers safety instrumented systems that shut a process down automatically. Standards such as IEC 61511 set out how to specify, design and test them.
4. Consequence modelling
Modelling fires, explosions and gas releases shows how far the effects could reach.
5. Regulatory knowledge
Understanding the COMAH regulations and related law is essential on larger sites.
6. Incident investigation
Finding root causes, not just immediate ones, stops incidents happening again.
7. Communication
You need to explain risks clearly and persuade people to act.
The COMAH regulations
In Great Britain, sites that hold large quantities of dangerous substances are covered by the Control of Major Accident Hazards Regulations, known as COMAH. They are enforced by the Health and Safety Executive and the environmental regulators. Depending on the quantities held, operators must have a major accident prevention policy and, for upper-tier sites, a detailed safety report and emergency plans.
Engineers on these sites play a big part in showing the regulator that risks are properly controlled, so experience on COMAH sites is highly valued.
Process safety management
Good process safety depends on systems as well as engineering. Process safety management brings together the elements that keep a site safe over its whole life, such as:
- Management of change, so modifications are reviewed before they are made.
- Asset integrity and inspection.
- Safe operating procedures and permits to work.
- Competence and training.
- Emergency planning.
- Learning from incidents and monitoring performance indicators.
Engineers who understand these systems, and not just the technical studies, are well placed for senior roles.
How to move into the role
Most people enter process safety after a few years in process, chemical, mechanical or instrument engineering. Hands-on experience of how plants are designed and run makes hazard studies far more effective.
Useful steps include volunteering for HAZOPs and incident investigations, taking short courses in HAZOP leadership, LOPA and functional safety, and studying for a recognised safety qualification. Some engineers join consultancies, which give broad experience across many sites and industries.
Industries and locations
Roles exist wherever hazardous materials are handled: chemicals, refining, oil and gas, pharmaceuticals, nuclear, food and drink, water treatment and energy storage. Large clusters are found on Teesside, the Humber, the North West, Grangemouth and around major ports. New sectors such as hydrogen, carbon capture and battery manufacturing are also creating demand. You can read our wider chemical engineering career guide for background.
Career progression
With experience, you could become a lead or principal engineer, a site process safety manager, a functional safety specialist or a technical authority for a group of sites. Consultancy roles offer variety and, for experienced specialists, contract work is common during major projects.
Find process safety roles with Bernoullis
Our chemical and process engineering recruitment team works with employers across the UK, from small specialist firms to household names. Check how your CV matches the roles you want with our CV checker, browse our latest engineering vacancies or contact us for a confidential chat about your next move as a process safety engineer.
Frequently Asked Questions
What does a process safety engineer do?
They help prevent major accidents such as fires, explosions and toxic releases by identifying hazards, assessing risks and making sure safeguards are in place.
What is a HAZOP?
A hazard and operability study: a structured team review of a design that looks at how each part of a process could go wrong and what safeguards are needed.
What are the COMAH regulations?
The Control of Major Accident Hazards Regulations apply to sites in Great Britain that hold large quantities of dangerous substances.
How do I get into process safety?
Most people gain a few years of process or plant engineering experience first, then add hazard study, LOPA and functional safety training.
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