Freelance WELL Performance Tester

  • Ad Warrior
  • Mar 06, 2026
Full time Part Time

Job Description

Facilities Engineer

Location: London

Salary: Hourly rate depending on experience and accreditation.

Vacancy Type: Permanent

The Opportunity

Our client is seeking an experienced Facilities Engineer to support performance verification across a diverse portfolio of buildings. This freelance role is ideal for someone passionate about healthy buildings and environmental quality, with the flexibility to manage project-based assignments, including international delivery.

You will manage on-site assessments that confirm whether a building meets the health and well-being performance thresholds set by the WELL Standard. The role involves a mix of post-occupancy testing, field measurements, and documented evidence collection. You will manage and conduct site visits and coordinate reporting with our internal team.

Key Responsibilities

  • On-Site performance testing & verification including Air, Water, Light, Thermal Comfort and Sound, following the WELL Performance Verification Guidebook protocols.
  • Perform field measurements using direct-read instruments and collect samples for laboratory analysis when required.
  • Manage equipment logistics, set-up, operation, and troubleshooting throughout the testing process.
  • Act as the main point of contact during testing with our internal team and clients.
  • Manage testing for international sites, including travel arrangements and equipment with the internal team.

Personal Attributes & Skills

  • Proven experience conducting building site visits and surveys
  • Experience conducting indoor environmental quality testing (air, water, light, thermal comfort, and acoustics) is highly advantageous but not essential.
  • Working knowledge of WELL Performance Verification processes and testing protocols is highly advantageous but not essential
  • Excellent data handling
  • Strong organisational and project management skills.
  • Excellent communication skills and confidence in client-facing interactions.
  • Ability to work independently and manage deadlines.
  • Willingness to travel across the UK and internationally as required.

Working Arrangement

This is a freelance, project-based role - you will be commissioned for specific testing assignments.

Engagements typically include:

  • On-site performance testing
  • Off-site data coordination with internal teams
  • Evidence upload support

Salary and compensation

Hourly rate depending on experience.

To Apply

If you feel you are a suitable candidate and would like to work for this reputable company, please don t hesitate to apply.