Freelance WELL Performance Tester

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