3D Machine Control Specialist – Blackwell Earthmoving HS2 (Aylesbury) Nationwide travel Are you ready to take on a pivotal role in one of the UK’s finest earthmoving businesses? Blackwell Earthmoving is delivering two of the most ambitious infrastructure projects in the UK -HS2 and Sizewell C. To support these schemes, we are searching for a 3D Control Specialist to manage digital construction workflows and keep our guided plant fleet working with absolute precision. This role sits at the centre of project delivery. You will: Convert engineering designs into accurate 3D models using Trimble Business Centre (TBC). Manage and maintain GNSS base stations, control networks, and machine guidance systems. Upload and verify models across excavators, dozers, and graders. Troubleshoot technical issues in real time, keeping machines operational and reducing downtime. Support QA surveys, as-built reporting, and material volume tracking. Train operators and collaborate with engineers to ensure designs are delivered to tolerance, first time. We’re looking for someone with: At least 5 years’ surveying or machine control experience. Strong technical knowledge of Trimble Earthworks and GNSS/total station systems. The ability to solve problems under pressure and keep projects moving. A proactive, collaborative approach with both technical teams and operators. This is more than a support role — it’s a chance to be at the heart of digital construction on some of the UK’s most high-profile schemes. You’ll be shaping landscapes, driving efficiency, and ensuring Blackwell maintains its reputation as one of the UK’s most advanced earthmoving contractors. Ready to step up? Apply today and be part of a team building the future of UK infrastructure. GBS is working exclusively on this project and if you are interested in finding out more about the role, please forward your CV your salary and benefits package to Jonathan Fieldhouse at johnny@greenbarks.co.uk.