The Role

  • Location: UK Head Office, Hemel Hempstead
  • Department: Mechanical

Primary purpose

The Mechanical Technician performs daily assembly tasks on behalf of the Production Team. All work completed must be of a standard that meets external certification requirements. The Mechanical Technician is also responsible for ensuring that capital equipment and relevant work areas are maintained in a safe and operable condition.

Key Responsibilities

  • Perform mechanical tasks in the assembly of products according to work instructions and general assembly documentation
  • Frequent liaison with Project Engineers and the Design team to determine structural elements of H.E.L equipment, to guarantee safe assembly, testing and operation of saleable products
  • Perform calibration of pressure fittings to meet safety and quality standards
  • Routine stock management of preventative maintenance spares for workshop capital equipment
  • Perform weekly safety checks on workshop equipment
  • Perform hydrostatic checks on pressure vessels and document results in accordance with internal and external procedures

Candidate Requirements

Essential Skills and Experience

  • Minimum of 3 years’ experience in a mechanically-biased role, with demonstrated exposure to fabrication processes such as cutting, drilling, abrading, finishing, milling and other machining
  • Technical qualification in a mechanical engineering discipline, either vocational or academic
  • Experience of assembling pressure fittings and joins, tubing manipulation and extrusion use
  • Manually dexterous, able to use tools appropriately to assemble products such as manifolds for fluid and gas flow
  • Computer literate, with skills in MS Office applications such as Excel, Outlook, MS Visio and MS Teams
  • Overseas travel may be required; a valid passport is essential
  • Fluency in written and spoken English

Desirable Skills and Experience

  • Methodical, organised and systematic in approach to tasks
  • Able to oversee a programme of events and plan accordingly, while ensuring timebound milestones are met
  • Ideally, experience with 3D CAD packages, preferably Autodesk Inventor (SolidWorks, or similar, is a possibility)
  • Understanding of electronics and/or systems engineering an advantage
  • Confident, personable and assertive in customer-facing settings and in interactions with global H.E.L staff, peers and functional heads

Training provided

  • 30-60-90 checkpoint meetings through a three-month onboarding plan
  • Regular development conversations once onboarding is complete, with further training discussed routinely where business needs permit
  • Any other training relevant to the role
  • H.E.L products and processes relevant to the role

How to apply

Closing date: 30 November 2026.

You can apply either way. Email your CV and covering letter to careers@helgroup.com, or complete the application form below.

About H.E.L

Our mission at H.E.L Group is to make a healthier, sustainable, safer world for everyone. We equip scientists with the right tools and knowledge to develop safe, efficient new processes and molecules that benefit the world and its population. Our core values are:

Being insightful through experience,

Being collaborative by design,

Being tenacious in spirit,

Being proud of progress.

We operate globally with offices in London, UK (HQ), Princeton, USA, Beijing, China, India and Singapore and field-based staff across our direct regions and trusted partners in distribution territories.

You can download the full position description here

To apply for this position, please complete the form below, and upload your CV and covering letter.
(Please no agencies)