Technical Support Specialist

Proteus Waterproofing is a trusted specialist in flat roof waterproofing, proudly based in Rayleigh, Essex. For over 13 years, we have delivered innovative, compliant solutions for both refurbishment and new-build projects across the UK. Our comprehensive one-stop-shop offering includes liquid and felt systems (cold and hot applied), high-performance insulation, and cutting-edge blue, green and biosolar.

We combine technical excellence with exceptional customer support. Our in-house capabilities include U-value, condensation, wind uplift, and blue roof calculations; bespoke tapered insulation designs; and detailed technical drawings. All our systems are BBA certified, with Environmental Product Declarations (EPDs) available for key products. We hold ISO 9001 (Quality), ISO 14001 (Environmental), ISO 27001 (Information Security), and ISO 45001 (Health & Safety) certifications, and we actively contribute to LRWA and GRO technical committees to advance industry best practice.

Our award-winning projects, Contractor Training Programme and comprehensive guarantees reflect our commitment to quality, compliance, and long-term performance. We are passionate about helping our clients achieve safe, sustainable, and durable roofing solutions.

We are seeking a knowledgeable and proactive Technical Support Specialist to join our Internal Technical team. In this pivotal role, you will provide expert technical guidance to our Technical Sales colleagues and a diverse client base – including contractors, architects, surveyors, compliance officers, structural engineers, and fire engineers. You will play a vital part in delivering the comprehensive, compliant, and innovative designs that have made Proteus a go‑to partner for flat roofing projects nationwide.

Reporting directly to the Head of Internal Technical, you will collaborate daily with colleagues in External Technical, Design, Sales, and Administration. This is an excellent opportunity for someone who thrives on solving complex technical challenges, enjoys client-facing work, and wants to contribute to industry-leading practice in a supportive, growing business.

• Manage and respond promptly to incoming technical enquiries received via email and telephone, delivering clear, accurate, and fully compliant advice tailored to each client’s needs.
• Write, check and collaborate on project specifications using the NBS Chorus platform.
• Attend design meetings with customers – both in person (at our Rayleigh office or client premises) and remotely – to understand project requirements, discuss options, and recommend optimal, code-compliant solutions.
• Support the preparation and refinement of technical details and drawings, primarily using AutoCAD (experience welcomed), ensuring all outputs meet British Standards, client specifications, and internal quality procedures.
• Perform and review critical performance calculations, including system load evaluations, wind uplift, U-value and condensation risk to underpin robust project proposals.
• Collaborate closely with our in‑house Design Office and external partners to produce complete, packaged roofing system designs that are technically sound, aesthetically appropriate, and fully compliant.
• Represent Proteus at industry technical meetings and working groups (LRWA, GRO, and others), helping to shape best practice guidance and keeping the team updated on regulatory developments.
• Undertake occasional site visits across the UK to provide hands‑on technical support, assess existing roof conditions, or verify system installations.
• Work cross‑functionally with multiple departments to support internal business projects, process improvements, and the continuous development of our technical offering.
• Assist the Technical Sales team with complex enquiries, tender submissions, and client presentations, ensuring proposals are technically robust and commercially competitive.
• Maintain accurate, auditable records of all enquiries, calculations, and correspondence in accordance with our ISO 27001 information security management system.

• Previous experience in a technical support,…