Installation Engineer

Location: Based in Irvine, covering commercial and industrial ventilation sites primarily across Glasgow and the Central Belt

Salary: Competitive Salary (Based on Experience)

Position: Full-Time, Permanent

Sigma EPD is a fast-growing, design-led ventilation engineering firm based in Irvine. We design, manufacture, and install high-end, proprietary ventilation systems, including Heat Recovery Ventilation (HRV) systems, bespoke fan walls, and commercial kitchen extracts.

As we scale our commercial operations over the next year, we are looking for Engineers who would help us develop the installation side of the business by running projects and driving efficiency on site.

We are not looking for a passive installer who just waits for instruction. We need an Installation Engineer to take full responsibility of commercial projects. You will work with us to develop concepts for installation, from CAD drawings to final handover. You will lead site installations, ensure quality and maintain site safety.

Crucially, because we are expanding, you will also be a mentor. You will lead a Trainee Engineer assigned to you, helping them progress through their practical on‑site SVQ qualifications. Your success in this role is judged not just by how fast you fit ductwork, but by how effectively you run the job site and develop our trainee.

• Lead the installation of commercial ventilation systems, bespoke fan walls, and HRV tech across the Central Belt. The job would entail some working away
• Interpret CAD drawings accurately and manage materials on site to ensure minimal wastage.
• Take full responsibility for site safety, risk assessments, and final quality control and handovers.
• Act as the primary on‑site contact for clients and main contractors, representing Sigma EPD professionally.
• Mentor and direct a Trainee Assistant, actively helping them log practical evidence for their on‑site SVQ apprenticeship track.

• Proven Experience: Solid background in commercial and industrial ventilation, ductwork installation and air handling systems. Experience with commercial kitchen extracts and HRV systems is an advantage.
• Highly Motivated Team Member: This is arguably one of the most important requirements. We are looking for a leader who actively takes initiative and contributes to our growing business.
• Respect and Humility: As a SigmaEPD employee, it is a requirement that you respect and support other employees.
• Leadership & Initiative: You naturally take charge of a site, anticipate problems before they happen, and solve them without needing hand‑holding.
• The Mentor Mindset: You are willing to share your trade knowledge to help train a junior assistant.
• Compliance: Full UK Driving License. A valid Blue/Gold SKILL card or CSCS card or willingness to obtain one is also a key requirement.
• Standards: High attention to detail; you take pride in clean, precise installations.
• The desire to build a long‑term career
• Professionalism: As an installation engineer you must interact with clients. By doing this you are carrying the reputation of our company and its ethos. The successful candidate will maintain a high level of professionalism when interacting with and serving these clients.

• Competitive salary.
• Company van and specialist tools provided.
• A stable, secure role within a growing business working with cutting‑edge green technology.
• Real career progression.
• Early finish on Fridays.

Apply to  with your CV and a brief note outlining your commercial installation experience and why you are the right fit to lead a team and drive site efficiency at