> Markdown version of [/jobs/ext/4566543-lead-test-technician](https://www.wearedevelopers.com/jobs/ext/4566543-lead-test-technician). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Lead Test Technician - **Company:** Twining, Inc. - **Location:** Fountain Valley, CA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Microsoft Access, Adobe - **Published:** November 4, 2026 - **Apply:** https://www.careerbuilder.com/job-details/lead-test-technician-fountain-valley-ca--70e6b3fa-e043-4712-a459-224dc52587ca ## About the Role Acceptance Testing, Field Trials, Testing, Communication Skills, Waterproofing, Leadership, Roofing, Safety/Work Safety, Construction, Mock Up, * High school diploma or equivalent required * 5+ years of relevant field testing, inspection, construction, or building enclosure experience preferred * Experience with field coordination, test setup, and technical documentation preferred * Proficient in Microsoft Windows software and applications and Adobe * Basic Understanding of construction drawings, specifications, and field conditions * Familiarity with ASTM, AAMA, and other applicable industry standards preferred * Strong communication, organization, and problem-solving skills * Ability to work independently and lead field activities with limited supervision * Ability to lift and carry testing equipment and work outdoors in varying conditions, including standing, walking, bending, kneeling, climbing ladders, and accessing active construction areas safely * Ability to travel to local and out-of-area project sites and work overtime or adjusted hours based on project demands * OSHA 10 or OSHA 30 preferred * Fall protection or aerial lift training preferred * ICC or related inspection/testing certifications preferred * Valid driver's license ## Description Lead Field Test Technician - Fountain Valley, CA Twining, an innovative engineering, testing, and inspection company with over 100 years of history, is seeking a Lead Field Test Technician to support specialized field testing and inspection services, including building enclosure, fenestration, waterproofing, roofing, air and water infiltration, anchor testing, and other project-specific testing scopes. This position requires strong technical skills, field leadership, clear communication, and a commitment to quality and safety. Responsibilities: * Perform and lead field testing and inspection services on active construction and existing building projects * Conduct building enclosure, fenestration, waterproofing, roofing, and specialized field-testing services * Perform water and air infiltration, mock-up, whole building air leakage, anchor, adhesion, coating, methane barrier, and other project-specific testing * Review project plans, specifications, and testing requirements, and coordinate site access, scheduling, logistics, equipment, and readiness with internal staff and project teams * Set up, operate, troubleshoot, and maintain field testing equipment and tools * Document test procedures, observations, deficiencies, results, and communicate field conditions, nonconforming work, and technical issues to project managers, clients, contractors, and consultants * Ensure services are performed in accordance with ASTM, AAMA, project specifications, manufacturer instructions, and company procedures, maintaining a high standard of quality and safety * Assist with training and mentoring junior field technicians * Support multi-day, out-of-area, and travel-based assignments as needed