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Assistant Driller

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Onsite

Assistant Driller

Rendesco

Assistant Driller

Skills

Testing & QA

1 month ago

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Important information


Contract type:

Permanent

Location:

Maidenhead SL6, UK

Work mode:

Onsite

Published on:

18 September 2026

What they need


We’re looking for an Assistant / Junior Driller to join our team; assisting the Lead Driller on a Comacchio rotary drilling rig, associated mud cleaning plant and ancillary site equipment. The successful candidate will have a demonstrated ability to work as part of a team, maintaining site cleanliness and preparedness, ensuring that the rig is attended to, materials stocked safely, and consumables ready as required.

Location: This is a Nationwide role, and the candidate must be willing to travel for work (expenses paid)The successful candidate will need to pass drug and alcohol screening and be capable of passing both a safety critical medical certificate, and DBS checks.

Experience and Skills:

  • Experience of drilling operations is preferred but not essential
  • Experience working outdoors, preferably in construction environments is essential
  • CSCS card, or the ability to obtain one
  • Emergency First Aid at Work is preferred but not essential
  • Telehandler ticket/license is preferred but not essential
  • Full UK Driving license
  • Effective and clear communication and interpersonal skills

Personal Attributes:

  • Collaborative approach to problem solving and a desire to achieve results.
  • Resilient and driven.

As a Driller, your duties will include:

  • Support in the operation of drilling rigs (Comacchio GEO602, 900 and 909GT) and related equipment to drill geothermal boreholes on land-based sites, to depths in excess of 200m.
  • Operation of mud cleaning/recycling equipment and deployment of a site-specific mud programme to allow the efficient, clean drilling of closed-loop GSHP boreholes.
  • Installation of closed-loop heat collectors in vertical and inclined boreholes, grouting and completion per design specification.
  • Ensuring that the site is clean, tidy, and all materials stocked safely and efficiently.
  • Delivering equipment readiness at all times, ensuring that consumables are replaced, and equipment safe and fueled for use.
  • Complete QA/QC testing on installed loops and ensure good records are kept.
  • Ensure drilling activities comply with environmental, health, and safety regulations.
  • Perform routine equipment inspections and maintenance; troubleshoot mechanical issues and perform basic field repairs.
  • Competitive salary of (depending on experience)
  • Private Medical Insurance after 6 months service.
  • Electric Vehicle Salary and Cycle to Work Salary Sacrifice Schemes
  • Quarterly Social Fund allocated of £50 per quarter for team events and gatherings, to encourage engagement across teams.
  • £30 Monthly contribution to Phone Contract paid directly into your monthly wage packet.
  • Further training, qualifications and development experience.
  • 25 days holiday (plus bank holidays)

Apply today and help us make decarbonisation effortless

At Rendesco, we are committed to building an inclusive workplace. We are proud to be a Disability Confident Employer and an equal opportunity employer, who encourages applicants from all backgrounds to apply.
We operate a preferred supplier list for our external recruitment agencies. Any CV’s that are speculatively sent to us by agencies outside of this list will be treated as a free gift and we will not be liable for any fees if we contact the candidate directly

Pay: From £33,000.00 per year

Benefits:

  • Company pension
  • Private medical insurance

Work Location: On the road

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