At a Glance
- Tasks: Lead mechanical and piping design for innovative energy projects.
- Company: Join InSite, a forward-thinking engineering consultancy with global reach.
- Benefits: Enjoy competitive salary, flexible working, and generous holiday allowance.
- Other info: Be part of a diverse team in beautiful Pembrokeshire, fostering innovation and collaboration.
- Why this job: Make a real impact on sustainable energy solutions while growing your career.
- Qualifications: Experience in mechanical/piping engineering and project leadership required.
The predicted salary is between 51750 - 63250 £ per year.
In Site Technical Services Limited (In Site), part of Vulcain Engineering Group, 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, In Site combines its specialist expertise with the scale, capability and global reach of the Vulcain group to help clients meet the challenges of the energy transition and deliver projects that support a more sustainable future.
Our team of experienced engineers and designers bring technical expertise and industry insight to every project, offering value, assurance, and innovative thinking from concept to execution.
In Site specialises in conceptualising, designing, and supporting projects that have a lasting, positive impact on the world of tomorrow.
The Position: Principal Mechanical & Piping Engineer
We are seeking a Principal Mechanical and Piping Engineer to join our expanding engineering and design consultancy.
This role is central to delivering high-quality Mechanical and Piping design scope across a diverse portfolio of both single and multi-discipline industrial and energy projects.
This role is ideal for an experienced engineer who can lead projects, work seamlessly within a multidisciplinary environment, and engage confidently with clients, vendors, and internal teams.
Some of the main responsibilities of the Principal Mechanical & Piping Engineer will include:
- Lead and oversee the development, review and approval of mechanical and piping engineering deliverables, including design philosophies, specifications, datasheets, material requisitions, piping class specifications, line lists, equipment layouts, piping layouts, isometrics and associated engineering documentation.
- Take technical authority for the mechanical and piping scope across projects, ensuring compliance with applicable industry codes, standards and client requirements, including ASME, API, BS EN and relevant pressure systems legislation.
- Lead the design and specification of static and rotating equipment, piping systems, pressure vessels, storage tanks and associated mechanical infrastructure, ensuring safe, reliable, maintainable and cost-effective engineering solutions.
- Review, verify and approve mechanical and piping engineering documentation to ensure technical accuracy, quality, consistency and compliance with project requirements, company procedures and relevant industry standards.
- Develop and implement solutions to complex mechanical and piping engineering challenges, working collaboratively with process, electrical, control and structural disciplines, and leading discipline input to design reviews, constructability assessments and technical assurance activities.
- Perform or oversee mechanical integrity assessments, piping stress evaluations, equipment selection, material specification and constructability reviews to ensure long‑term asset reliability and operational performance.
- Act as the principal mechanical and piping technical interface with clients, vendors, fabricators, contractors and other stakeholders, leading technical discussions, resolving complex engineering issues, clarifying requirements and supporting key project decisions.
- Lead technical evaluations of vendor proposals, equipment packages and contractor deliverables, ensuring alignment with project specifications, operational requirements and lifecycle performance objectives.
- Provide mentoring, guidance and technical coaching to junior and senior mechanical engineers and designers, fostering a culture of engineering excellence, safety, quality, compliance and continuous professional development within the Mechanical & Piping team.
Preferred Profile
- We are looking for individuals who can bring the following skills and experience:
- Experience of leading mechanical and/or piping deliverables in an EPC project environment, ideally from an engineering and design consultancy setting.
- Have previously delivered design packages across Concept, FEED and Detailed Design for Oil & Gas, Energy, COMAH, Industrial, or similar projects.
- Strong understanding of piping layout, routing and modelling with knowledge of relevant codes, standards and industry practices.
- Comfortable coordinating with multidisciplinary design teams, and confident engaging with EPC contractors & owners / operators.
- Brownfield or modification project exposure is an advantage.
- Ideally, a Chartered Engineer working towards (IMech E ideal).
- Reside locally to Pembrokeshire or be prepared to relocate, as this permanent role does not include travel expense coverage.
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.
We offer a competitive salary tailored to your experience and background.
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 (10% employer contribution)
- 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
At In Site, 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.
Insite Technical Services is an equal‑opportunity 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.
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Principal Mechanical & Piping Engineer in Pembroke Dock employer: InSite Technical Services
InSite Technical Services Limited is an exceptional employer, offering a dynamic work environment in the picturesque Pembrokeshire region. With a strong focus on professional development and Chartership support, employees are encouraged to grow their skills while working on innovative energy, industrial, and water projects. The collaborative culture fosters mentorship and client engagement, making it a rewarding place for engineers looking to make a meaningful impact.
StudySmarter Expert Advice🤫
We think this is how you could land Principal Mechanical & Piping Engineer in Pembroke Dock
✨Get Your Hands Dirty at Engineering Events
Join local engineering meetups or industry conferences related to mechanical engineering. Whether it's a workshop or a career fair, these events are goldmines for networking and getting a foot in the door. Plus, you can showcase your passion and enthusiasm directly to potential employers like InSite Technical Services.
✨Connect with Professors & Peers
Tap into your university’s resources—professors often have connections in the industry. Don’t be shy to ask about potential openings or recommendations. Your classmates might also know of companies hiring. Often, it’s who you know that gets you in front of the right people!
✨Highlight Your Projects and Practical Experience
When you land those interviews, make sure to talk about your hands-on projects or internships. Whether it's a design project or hands-on experience with CAD software, specific examples will make you stand out. Companies like InSite Technical Services love to hear about practical applications of your skills.
✨Apply Directly on Company Websites
Check out the careers page of InSite Technical Services and apply directly through there. It shows initiative and interest in their specific values. Plus, you'll often find openings that aren't advertised on job boards, giving you a better chance to land that full-time gig!
We think you need these skills to ace Principal Mechanical & Piping Engineer in Pembroke Dock
Some tips for your application 🫡
Show Off Your Technical Expertise:In mechanical engineering, it’s vital to highlight your technical skills and projects. Make sure to include relevant software proficiency (like CAD tools) in your CV. If you've worked on specific engineering projects, detail your key contributions — we want to see how you’ve applied your skills in a practical setting!
Focus on Problem-Solving Examples:Employers in mechanical engineering love to see how you handle challenges. Use your cover letter to share specific instances where you’ve solved a complex problem or improved a design. This will show us you're not just knowledgeable but also capable of applying that knowledge effectively.
Highlight Relevant Certifications:Include any relevant certifications or training that can set you apart from the competition. Whether it's coursework from your degree, a recognised certification, or extra training in new technologies, we love to see candidates who continuously improve their skill set. This tells us you're serious about your career in engineering!
Tailor Your CV for the Role:Don’t forget to customise your CV for InSite Technical Services and the Principal Mechanical & Piping Engineer role specifically. Pull examples from your experience that align with the job description — it shows us you've done your research and are genuinely interested in becoming part of the team. We recommend applying through our website to ensure your application gets to the right people!
How to prepare for a job interview at InSite Technical Services
✨Brush Up on Your CAD Skills
Since mechanical engineering often involves design processes, be ready to showcase your proficiency in CAD software like SolidWorks or AutoCAD. Bring along a digital portfolio or even some sketches that demonstrate your design capabilities — it’s a great way to show what you can bring to the table at InSite Technical Services.
✨Prepare for Technical Questions
Expect technical questions that test your understanding of engineering principles and problem-solving skills. You might get hypothetical scenarios where you need to design a component or troubleshoot a mechanical system. Practising these types of questions will give you the confidence to tackle whatever comes your way!
✨Show Your Team Spirit
As a full-time mechanical engineer, collaboration is key! Be ready to share examples of past team projects or any experiences where you contributed to solving a complex problem with others. Demonstrating your ability to work in a team will resonate well with the interviewers at InSite Technical Services.
✨Discuss Your Future Goals
Since this is a full-time position, your long-term vision is important. Be open about your career aspirations, whether it’s mastering a specific tool or leading projects. This shows that you're committed not just to learning but also to growing with InSite Technical Services, making you a more appealing candidate.
