Technical Engineer

RES-Distribution Ltd; Guildford; On-site; GBP 40,000 - 60,000; Full time

Benefits offered by this job

Company Car

Generous pension

Bonuses

Annual leave

Healthcare discounts

Job summary

RES-Distribution Ltd is seeking a Field Based Technical Sales Engineer for the East England region. You will conduct site surveys, specify systems with installers and homeowners, and produce quotations, commissioning heat pump systems and handing over projects.

You will design heat loss calculations, create proposals and manage CRM records; you’ll ensure MCS compliance and Building Regulations, providing remote support as needed.

Qualifications

• Level 3 NVQ or equivalent in Plumbing & Heating.
• Heat Pump design & installation (LCL/BPEC).
• G3 Unvented Hot Water, WRAS and MCS standards knowledge.
• Experience in low-temperature hydraulic design and electrical fault-finding.
• Consultative mindset with ability to translate technical data for customers.
• Willingness to travel; based around East London or Ipswich.

Responsibilities

• Conduct technical site surveys, agree system specifications with installers/homeowners, produce on-site quotations, commission Air Source Heat Pump systems, complete system handovers and resolve issues through remedial visits.
• Produce room-by-room heat loss calculations, system designs and performance assessments using company tools; compile technical proposals and quotations and maintain CRM records.
• Act as Nominated Technical Supervisor for regional MCS projects, ensuring subcontracted installations meet MCS standards and Building Regulations.
• Provide phone-based and remote technical support and maintain relationships with installers as the technical contact.

Skills

Heat Pump design

Hydraulic design (low-temp)

Electrical fault-finding

Consultative selling

Travel readiness

Education

Level 3 NVQ or equivalent (Plumbing & Heating)

Job description

Salary:

Competitive Salary + Company Car + Excellent Benefits

Technical Sales Engineer - Field Based - RES - Renewables - East England

So, who are we? We are RES, a part of the Wolseley Group - a leading specialist trade merchant across the UK and Ireland. We pride ourselves in putting our people and customers at the heart of everything we do – and best of all, provide opportunities to develop skills and build careers through our award-winning Wolseley Talent Guild.

Also, did we mention? In addition to the competitive salary, there are also benefits on tap – including...

Annual leave (increasing with length of service), a generous pension scheme (matched up to 9%), potential to earn bonuses, enhanced maternity / adoption leave and access to a great range of online and high street discounts.

We also promote positive health and wellbeing by offering free access to healthcare, our popular YuLife app, our Cycle to Work scheme and more!

As a Field Based Technical Sales Engineer you’ll be responsible for:

• Conducting technical site surveys, agreeing system specifications with installers and homeowners, producing on‑site quotations, commissioning Air Source Heat Pump systems, completing system handovers, and resolving technical issues through remedial visits.
• Produce room‑by‑room heat loss calculations, system designs and performance assessments using company design tools and established processes, with full training and technical support provided. Compile technical proposals and quotations for the sales team, ensuring accurate project records are maintained within the CRM system.
• Acting as the Nominated Technical Supervisor for all regional MCS projects, ensuring every subcontracted installation adheres to MCS standards and Building Regulations.
• Providing phone‑based and remote technical support, maintaining strong working relationships with assigned installers, and acting as a consistent technical point of contact.

This is a full-time, permanent, field based role working 42.5 hours per week Monday to Friday between 8am - 5pm.

And here’s what we’d like you to have:

• Plumbing & Heating: Level 3 NVQ or equivalent.
• Heat Pumps: LCL/BPEC Heat Pump Design & Installation.
• Compliance: G3 Unvented Hot Water, WRAS, and a comprehensive knowledge of MCS standards.
• Technical Expertise: Proven experience in low-temperature hydraulic design and electrical fault-finding.
• Soft Skills: A "consultative" mindset with the ability to translate technical data into actionable insights for non-technical customers.
• Logistics: Based in/around East London or Ipswich, with a willingness to travel and occasional overnight stays.