Materials/Field Technician

MSS – Mattest Site Services, a UKAS-accredited laboratory, is a recognised name in construction materials testing, supporting major projects across the UK. As part of the Celnor Group, we deliver technical accuracy, fast turnarounds, and on-site expertise to clients in transport, highways, and structural development.

We are now hiring a Site Technician to join our growing team in Spondon, Derby. This is a hands-on, field-based role working across live construction and road surfacing sites — ideal for candidates with some experience in site testing, construction, or materials environments, looking to further develop in a high-demand industry.

Key Responsibilities

• Attending construction and surfacing sites to conduct on-site sampling and testing of materials
• Performing laboratory testing on soils, aggregates, concrete, and asphalt
• Accurately recording and uploading test results using company systems (tablet provided)
• Liaising with site teams and colleagues to maintain quality, accuracy, and compliance
• Working shift patterns (day/night shifts and some weekends), with paid overtime
• Travelling across the Midlands in a company van (following initial onboarding)
• Adhering to all safety standards, including passing a Safety Critical Medical (paid for by us)

Skills, Knowledge and Expertise

• Have experience in construction site work, materials testing, or a related technical environment
• Communicate clearly and work well independently
• Are confident using digital tools and Microsoft Office
• Hold a full UK driving licence
• Possess a CSCS card (or are willing to obtain one)
• Are flexible with working hours and willing to travel
• UKAS/MCIT/Soils and Aggregates experience is desirable but not essential — full technical support will be provided.

Salary and Benefits

• Salary of £29,000 – £32,000, depending on experience
• Signing-on bonus payable upon successful completion of probation
• We offer a referral reward of up to £500 after probation if you refer a successful hire
• 40 hours per week with overtime rates for evenings/weekends
• Company van, phone, and tablet (following training period)
• All required training and Safety Critical Medical paid for by MSS
• Excellent career progression and cross-training opportunities across Celnor Group

MSS is an equal opportunities employer committed to diversity and inclusion in the workplace.

To apply, please submit your CV and a covering letter explaining why you're the right fit for this role.