Principal Process Engineer

About Insite

InSite Technical Services Limited (InSite) is a UK-based engineering consultancy with an international footprint, delivering expert engineering design, project management, and technical support across a range of energy and industrial sectors.With a strong track record in the oil refining, terminals, LNG, and renewables industries, InSite is committed to helping clients meet the challenges of the energy transition and deliver projects that support a more sustainable future.

Our team of experienced engineers brings technical expertise and industry insight to every project, offering value, assurance, and innovative thinking from concept to execution. InSite specialises in conceptualising, designing, and supporting projects that have a lasting, positive impact on the world of tomorrow.

The Position: Principal Process Engineer

We are seeking to appoint a Principal Process Engineer to support the continued growth of our engineering and design consultancy. This position is suited to an experienced process engineering professional with robust technical capability and a proven track record of leading process engineering activities.

As a senior member of the team, you will be responsible for the delivery of complex process design scopes, represent the process discipline in client engagements, and provide guidance and mentorship to junior engineers.

Some of the main responsibilities of the Principal Process Engineer will include:

• Leading the preparation, technical review and approval of process engineering deliverables, including process simulations, design calculations, PFDs, P&IDs, datasheets, specifications, process descriptions, philosophies and narratives.
• Participating in design reviews, model reviews, and formal safety studies, including HAZIDs, HAZOPs, LOPAs.
• Representing the process discipline in client meetings and technical workshops.
• Liaising closely with other engineering disciplines and reviewing multi-disciplinary deliverables to ensure technical alignment.
• Defining scope, deliverables and resource requirements for process engineering work packages, and providing input to project schedules.
• Providing technical guidance and mentorship to junior engineers, fostering a culture of quality and continuous improvement.

The role provides structured professional development and a clear pathway towards discipline leadership.

If you are an experienced Process Engineer ready to step into a Principal-level role - or already operating at Principal level and seeking greater technical influence and responsibility - we would welcome your application.

Preferred Profile:

• A minimum of 12 years of process design experience within a relevant industrial sector.
• Degree-qualified in Chemical Engineering and Chartered Member of the IChemE.
• Significant experience with process simulation software and the preparation of process engineering deliverables.
• Proven ability in leading process engineering activities, ensuring that they are delivered safely, accurately and on time.
• Sound understanding of process safety fundamentals and experience in hazard/risk assessments.
• Well-developed organisational and teamwork skills, with the ability to engage effectively with clients and provide technical guidance to junior engineers.
• Excellent problem-solving ability and good attention to detail.

Please note many of our UK projects require high-level security clearance meaning that visa sponsorship is not guaranteed and is assessed on a case-by-case basis, depending on role criticality and project needs.

Remuneration & Benefits:

We offer a competitive salary tailored to your experience and background. Whether you're earlier in your career or bring more senior-level expertise, we encourage you to apply if this role aligns with your skills, or if you're open to discussing other opportunities within our business and wider Vulcain Engineering Group.

We also offer a benefits package, both standard and enhanced, which is designed to support your wellbeing, development, and financial future, including:

• Annual Leave + Bank Holidays
• Pension Scheme
• Life Insurance and long-term sickness cover
• Medical cover and Employee Assistance Programme (EAP)
• Maternity, Paternity Leave
• Cycle to Work Scheme
• Training & Development, including additional qualifications and accreditations relevant to your role

Why join us?

At InSite, we offer exciting career opportunities for people at every stage - from apprentices and graduates to seasoned professionals.

We’re proud to provide a competitive reward package, flexible working options and generous holiday allowance - because your work/life balance matters.

Join our friendly team in beautiful Pembrokeshire, West Wales, and build a fulfilling career with real responsibility, growth and impact.

If you enjoy tackling challenges and solving problems, you’ll find opportunities to grow your career, stay motivated, and thrive in a dynamic, collaborative environment.

Equal Opportunities:

Insite Technical Services is an equal opportunities employer. We are committed to creating a diverse and inclusive workplace where everyone is valued and respected. We welcome applications from all individuals, regardless of background, and do not discriminate based on age, gender, disability, ethnicity, religion, sexual orientation, or any other protected characteristic.

If you require any reasonable adjustments during the recruitment process, please let us know, and we will be happy to accommodate your needs.

We appreciate every application. However, due to the volume we receive, we’re only able to contact candidates who are shortlisted for this role or who may be a strong fit for future opportunities.