Site Investigation Engineers

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): 6–12 months with extensions

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.

• 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.

• 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.

• 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).