SITE INVESTIGATION ENGINEERS all levels Ground Investigation (Setting Out for Boreholes & Trial Pits) Employment: Permanent or Freelance Location: UK-wide Freelance Rate: £250£400/day (Outside IR35 potential) Permanent Salary: £32,000£60,000 Vehicle/Allowance Benefits Start: ASAP Contract Length (Freelance): 612 months with extensions Role Overview A specialist ground investigation contractor is seeking a Site Investigation Engineer to support a busy programme of works across the UK. The role is focused on setting out borehole and trial pit locations, supervising drilling crews, logging soils/rocks, and delivering high-quality factual site data. Key Responsibilities Set out borehole and trial pit locations using GPS/total station. Supervise drilling crews and excavation teams. Carry out and oversee trial pits, boreholes, window sampling, coring, and in-situ testing. Log soils and rocks to BS5930 standards. Collect geotechnical and environmental samples. Produce accurate field logs, daily records, and factual reports. Ensure compliance with RAMS, CDM, and site H&S protocols. Liaise with PMs, designers, and client teams to ensure smooth delivery. Required Experience Background in geology, geotechnical engineering, civil engineering, or earth sciences. Experience in UK ground investigation. Ability to set out boreholes and trial pits accurately using GPS/total station. Strong understanding of UK H&S and CDM. Full UK driving licence and willingness to travel. Able to work independently with minimal supervision. Whats Offered Freelance or permanent employment routes. Competitive day rate or salary package. Vehicle/allowance (perm) overtime opportunities. Long-term pipeline of GI projects. Training, development, and chartership support (perm).