Our Values

Our values give you an insight into aur identity and culture. They are part of who we are, what we stand for and how we act. Everyone at InSite is encouraged to carry out their work with us according to our values:

Own The Outcome

At InSite, true success stems from every member of our team taking ownership of their responsibilities and driving outcomes.

Every participant is a leader in their own right. We create an environment where challenges are overcome, innovation thrives, and excellence becomes a habit.

With, Not For

We work with, not for, our clients.

Our approach goes beyond traditional client-vendor relationships fostering collaboration and mutual growth.

We align our expertise with our clients’ vision to achieve shared objectives, in a partnership built on trust and open communication.

Never Stop Learning

Our dedication to continuous improvement strengthens our ability to deliver high quality solutions.

InSite believe in the power of growth and development. ‘Never Stop Learning’ is our commitment to nurturing the talents and skills of our staff.

Benefits

InSite Technical Services are always on the lookout for experienced, knowledgeable and enthusiastic, designers, engineers and business support personnel to join our team. If you feel you would like to join a rapidly growing team; we welcome all CVs due to business growth.

Career Growth & Opportunity

Progressive career paths, exposure to varying projects, and development opportunities for all experience levels.

Learning & Professional Development

Ongoing investment in training, mentorship and chartership support from industry- experts so you’re always growing.

Competitive Rewards

A strong salary and benefits package that recognises your contribution and grows with your career.

Flexibility & Wellbeing

A culture that supports wellbeing and balance, with flexibility when needed and a strong focus on working together.

Work Environment & Location

A welcoming team culture and the opportunity to live and work in stunning Pembrokeshire.

Vacancies

Are you looking for a challenging and rewarding career in the energy sector? Look no further than InSite Technical Services! We are a company that values innovation, collaboration, and personal growth. Join our team of skilled professionals and help us provide excellent technical solutions to our clients.

With competitive salaries, opportunities for advancement, and a supportive work environment, InSite Technical Services is the perfect place to take your career to the next level. Apply now and become a part of our dynamic and dedicated team!

Senior / Principal Civil & Structural Designer

We are seeking an experienced Senior / Principal Civil & Structural Designer to join our growing team, delivering projects across the industrial, energy and water sectors. This is an excellent opportunity for a motivated individual who can lead design delivery, coordinate with multidisciplinary teams, and support the development of junior staff.

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.

Closing Date 27th June 2026

Key Responsibilities

Lead the production of:

  • Steel layouts and connection details
  • Reinforced concrete detailing, schedules and BBS
  • Drainage layouts and foundation drawings
  • Checking and reviewing drawings and models for technical compliance and quality
  • Coordinate effectively with multidisciplinary teams.
  • Liaising with clients, contractors and site teams during design development and delivery
  • Show commercial awareness with the ability to work to programmes, budgets and project deadlines
  • Deliver design packages with minimal supervision
  • Provide mentoring, guidance and technical coaching to junior team

About Us

InSite are a leading multi-discipline design engineering and consultancy company based in Pembroke Dock, West Wales. We deliver multi-discipline projects for major clients across the UK and Europe – from concept through to completion.

Recognised among Wales’s 50 fastest-growing businesses and as SME of the Year at the ECITB Awards, we are proud of our collaborative culture and commitment to technical excellence. Our success is driven by talented people who take pride in doing things well.

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.

Read more

Skills Required

The successful candidate will be proactive, technically capable, and confident managing their own workload while contributing to wider project success. You will take pride in producing high-quality deliverables, solving practical design challenges, and helping develop others within the team.

  • Extensive practical experience in Civil & Structural design, with proven expertise in structural steel and reinforced concrete detailing
  • Proven experience delivering projects within the industrial, energy and/or water sectors
  • Proficiency in industry – standard 2D and 3D design tools, including AutoCAD and Revit (essential) with experience of AVEVA E3D preferred
  • Good understanding of Eurocodes and relevant UK civil and structural design standards
  • Experienced in working with both point cloud data and topographical survey data
  • Experience across the full project lifecycle, from concept and FEED through to detailed design
  • Strong communication and organisational skills
  • Reside locally to Pembroke or be prepared to relocate, as this permanent role does not include travel expense coverage.

Employee Benefits

  • Competitive Salary
  • Flexible Working
  • Free On-Site Parking
  • Excellent Employee Benefits package:
    • Enhanced Annual Leave, Sick Pay, Parental Leave
    • Medical Insurance (optional) and access to EAP
    • Life Insurance
    • Income Protection Insurance
    • Fantastic Pension
    • + more

Mechanical & Piping Senior Designer

We are seeking a Mechanical & Piping Senior Designer to strengthen our growing engineering and design consultancy. This role is ideal for an experienced professional designer who brings deep technical expertise, particularly in Process Piping systems in both Brownfield and Greenfield environments and can provide disciplined leadership across a diverse portfolio of industrial and energy projects. As a senior member of the team, you will lead key technical decisions, oversee complex piping design scopes, mentor junior members of the team, and represent the Mechanical and Piping discipline in high-impact client, contractor, and vendor engagements.

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.

Closing Date 13th June 2026

Key Responsibilities

  • Lead the production, review and approval of Piping design documents including Isometrics, Material Take-offs, Plot Plans, and Detailed Drawings using Aveva E3D, Plant3D, and Navisworks Manage.
  • Provide input to project schedules, working closely with the project management team throughout the course of a project.
  • Review incoming vendor information and client’s technical standards alongside out Mechanical Engineers.
  • Support with defining scope, deliverables and resource requirements for piping design packages, providing accurate input to risk identification and change management.
  • Represent the Mechanical and Piping discipline in client meetings and technical discussions, resolving complex design queries and coordinating with vendors and contractors to ensure technical integrity.
  • Work closely with other engineering disciplines to deliver integrated, high-quality project solutions, providing checking of multi-disciplinary deliverables where required.
  • Lead 3D 30%, 60% and 90% model reviews gathering input from client SME’s.
  • Distribute work packages efficiently to more junior members of the project team.
  • Mentor and develop engineers and apprentices, promoting a culture of engineering excellence, quality and continuous improvement across the team.

About Us

InSite are a leading multi-discipline design engineering and consultancy company based in Pembroke Dock, West Wales. We deliver multi-discipline projects for major clients across the UK and Europe – from concept through to completion.

Recognised among Wales’s 50 fastest-growing businesses and as SME of the Year at the ECITB Awards, we are proud of our collaborative culture and commitment to technical excellence. Our success is driven by talented people who take pride in doing things well.

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.

Read more

Skills Required

The successful applicant will lead technically challenging, high-impact projects while playing a key part in shaping and enhancing the capability of the Mechanical and Piping discipline

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

  • A minimum of a HNC in Mechanical Engineering or equivalent relevant industry experience.
  • Experience delivering detailed piping design within industrial, energy or infrastructure sectors, with strong working knowledge ASME B31.3 Standards is preferred.
  • Proven ability to lead project design scopes, coordinate multidisciplinary engineering activities and engage confidently with clients, vendors and senior stakeholders.
  • Demonstrated experience guiding and mentoring junior and mid-level engineers, supporting their technical development.
  • Experience interpreting and explaining Static and Rotating equipment drawings and design.

Employee Benefits

  • Competitive Salary
  • Flexible Working
  • Free On-Site Parking
  • Excellent Employee Benefits package:
    • Enhanced Annual Leave, Sick Pay, Parental Leave
    • Medical Insurance (optional) and access to EAP
    • Life Insurance
    • Income Protection Insurance
    • Fantastic Pension
    • + more

Application Form

Application Form

Please add your contact details, CV and any supporting documents below and we will be in touch.

Early Careers at InSite

Are you ready to embark on a career in Engineering, Project Management or Business Support?  Our Apprenticeship and Graduate schemes aim to lead you on a successful and fulfilling professional journey.

We embrace apprenticeships, mentorships, and encourage personal development.  Our graduate scheme is ECITB approved and is designed to meet the Engineering Council UL-Spec ensuring that your training supports you becoming chartered.

Work hard, learn on the job and grow professionally, but have fun along the way.  We are a pretty social bunch, so your time at InSite will be supportive, enriching and enjoyable.

At InSite every employee is allocated a Buddy and Mentor to support them as soon as they come aboard.  We are dedicated to nurturing talent and providing you with the support and professional development you need on your journey all the way up to becoming chartered.

Don’t miss out on this valuable opportunity to kickstart your career in engineering.

Our 2026 application process is now closed.