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!

Document Controller

InSite are looking for a Document Controller on a fixed term basis (12 months) to join our growing team in Pembroke Dock.  This is an excellent opportunity to play a key role in managing the documentation that supports complex engineering and design projects across the Oil & Gas, LNG, Nuclear and Renewables sectors.  Full-time and part-time applications are welcomed.

Closing Date 8th November 2026

Key Responsibilities

As a Document Controller, you’ll be responsible for maintaining accurate records of project documentation and ensuring consistent standards across all engineering projects.You’ll manage our Document Management System (DMS), ensuring that the information is properly stored, tracked and distributed across teams and clients.

In addition to your core document control duties, you’ll also provide support with cost tracking, invoicing, timesheet reporting, and other system-based activities that help keep our projects running efficiently.

This role will suit someone with strong attention to detail, excellent organisation skills, and an interest in supporting wider project and business control activities.  This is a great opportunity for someone looking to develop a broader skillset within a dynamic, multidisciplinary consultancy.

  • Manage the flow of documentation across engineering and project teams.
  • Ensure documents are accurate, properly formatted, and stored according to company standards.
  • Maintain internal and external document numbering systems and version control.
  • Coordinate document distribution and ensure timely updates to project teams.
  • Track and report documentation status to help identify and resolve delays.
  • Support activities including cost reporting and invoicing.
  • Provide system administration support for internal tools (e.g. time entry, cost tracking).
  • Build and maintain strong working relationships with both internal teams and external stakeholders.
  • Carry out additional duties consistent with the scope, responsibilities, and level of role, as required.

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

  • Minimum of 5 GCSEs (Grade C or above) including English and Maths, or equivalent.
  • Previous experience in an engineering or technical project environment is desirable but not essential.
  • Proficiency in Microsoft Office (Excel, Word, Outlook).
  • Experience using a Document Management System (DMS) (e.g. SharePoint, Aconex, or similar), though full training will be provided.
  • Strong organisational skills and excellent attention to detail.
  • Ability to handle multiple priorities and work to deadlines.
  • Willingness to learn and support a variety of business processes.

Employee Benefits

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

Principal Electrical Engineer

We are seeking a Principal Electrical Engineer to strengthen our growing engineering and design consultancy. This role is ideal for an experienced electrical professional who brings deep technical expertise, particularly in power systems and power system studies, 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 electrical design scopes, mentor engineers across all levels, and represent the electrical discipline in high-impact client, contractor, and vendor engagements. You will play a pivotal role in shaping best practices, improving design approaches, and elevating the technical capability of the team.

Closing Date 8th November 2026

Key Responsibilities

  • Lead the production, review and approval of electrical engineering documents including calculations, specifications, datasheets, schedules, drawings and technical reports.
  • Provide expert input on complex electrical design activities such as cable sizing, load assessments, network configuration, system architecture and power system design.
  • Act as the technical authority for power system studies, including load flow, fault level assessments, protection coordination, arc flash analysis, harmonic studies and overall system resilience.
  • Deliver and oversee power system studies using ETAP or similar tools, and lead the definition of network design requirements for LV and HV systems, protection philosophies, earthing strategies and operating concepts.
  • Define scope, deliverables and resource requirements for electrical engineering work packages, providing accurate input to schedules, estimating, risk identification and change management.
  • Represent the electrical 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, contributing to design reviews, HAZOPs, model reviews and key technical checkpoints.
  • Mentor and develop engineers and apprentices, promoting a culture of engineering excellence, quality and continuous improvement across the team.

This role offers the opportunity to lead technically challenging, high-impact projects while playing a key part in shaping and enhancing the capability of the electrical discipline. You’ll join a growing consultancy where your influence directly contributes to team development and client outcomes, with professional development, Chartership support and clear pathways into discipline leadership. Working within a collaborative, multidisciplinary environment where technical expertise is genuinely valued, you’ll have the autonomy and scope to make a real impact.

If you are an experienced Electrical 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.

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

  • Degree in Electrical Engineering or equivalent relevant industry experience (HNC/HND or similar also considered), with Chartered Engineer status (or working towards) advantageous.
  • Significant experience delivering detailed electrical design within industrial, energy or infrastructure sectors, with strong working knowledge of LV and HV systems (up to 11/33 kV).
  • Experience performing power system studies using ETAP or similar tools, including load flow, fault level assessments, protection coordination, harmonic analysis and related assessments.
  • Competent with cable sizing tools such as ElectricalOM, Amtech or similar, alongside an excellent understanding of the 18th Edition Wiring Regulations (BS 7671).
  • 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 with ATEX/hazardous area classification, earthing and lightning protection design, or lighting design is desirable.
  • Previous consultancy experience is advantageous.

Employee Benefits

  • Competitive Salary
  • Flexible Working
  • Free On-Site Parking
  • Excellent Employee Benefits package:
    • Enhanced Annual Leave, Sick Pay, Parental Leave
    • Medical Insurance (optional)
    • 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.