Comfort Systems USA
Start-up Tech III
Fort Worth, TX (DynaTen HQ)
hirly Pro
Get in front of the people hiring at Comfort Systems USA
- Reach the hiring manager at Comfort Systems USA on LinkedIn, from your own account
- hirly applies to this job for you, with unlimited applications
- A resume and cover letter written for this job, unlimited
- The hiring manager and recruiter at Comfort Systems USA, with contact details
$49 a month · ₹1,999 for 30 days in India · cancel any time
Get past the screening software and onto a recruiter's desk
hirly rewrites your resume for this job — matching the keywords and skills in the posting, moving your most relevant experience to the top, and writing a cover letter to fit. About 30 seconds.
- Keywords matched to this posting
- Fit score before you apply
- Cover letter included
Matched against 3M live jobs from 220,000+ employers in 200+ countries.
Tailor my resume for this job →Apply from your AI assistant
Connect hirly to Claude or ChatGPT and ask it to apply to this job. hirly tailors your resume, fills the employer’s form and asks before sending.
Some employer sites stop an application at a CAPTCHA or sign-in and hand it back with a link. Applying needs a paid plan. Works with any assistant that supports MCP.
hirly's read of this role
- Seniority
- Senior
- Country
- US
- Work mode
- On-site / unstated
- First seen by hirly
- 1 Sept 2026
Derived automatically from the posting. Upload your resume above to see how the role scores against it.
the posting
Job Summary
DynaTen, a Comfort Systems USA Company, is seeking a Startup Technician III to join our Startup team. This advanced-level position is responsible for performing and supporting complex startup, testing, troubleshooting, and documentation activities on commercial construction projects.
The Startup Technician III is expected to work independently on most startup activities, troubleshoot more complex system issues, coordinate with project teams and trade partners, and support less experienced technicians through field guidance and technical assistance.
Key Responsibilities
- Perform startup activities for commercial HVAC, mechanical, electrical, and control systems independently.
- Lead or support startup activities for assigned systems or areas of a project.
- Conduct pre-startup inspections to verify installation readiness, accessibility, safety, controls readiness, and compliance with manufacturer requirements.
- Perform operational testing, functional checks, and system verification activities.
- Troubleshoot complex mechanical, electrical, controls, airflow, and equipment performance issues.
- Coordinate with installing contractors, project teams, controls vendors, commissioning authorities, and internal leadership to resolve startup-related issues.
- Review drawings, submittals, wiring diagrams, sequence of operations, equipment data, and project requirements.
- Complete clear, accurate, and timely startup documentation.
- Recommend improvements to startup documentation, checklists, and field processes.
- Support warranty-related troubleshooting and field investigations as needed.
- Participate in project meetings, technical discussions, and coordination meetings when needed.
- Provide technical guidance and informal mentoring to Startup Technician I and II team members.
- Maintain high standards for safety, quality, communication, and customer service.
Technical Knowledge and Skills
- Strong understanding of mechanical, electrical, controls, airflow, and air conditioning theory.
- Strong knowledge of commercial HVAC and mechanical system startup.
- Independent troubleshooting ability for equipment, electrical, and control system issues.
- Strong understanding of motors, motor controls, contactors, starters, relays, disconnects, transformers, pumps, fans, economizers, VFDs, sensors, actuators, and DDC hardware.
- Ability to apply control systems knowledge to DX, chilled water, evaporative cooling, and other commercial cooling systems.
- Ability to interpret drawings, submittals, wiring diagrams, equipment schedules, and sequence of operations.
- Ability to communicate technical issues clearly to project teams, contractors, vendors, and internal leadership.
- Ability to produce clear and complete startup documentation.
- Proficient with Excel, Word, Procore, CxAlloy, Microsoft Project, and similar tools.
Required Qualifications
- 7 to 9 years of related field experience.
- Ability to perform startup activities independently.
- Ability to troubleshoot complex mechanical, electrical, and controls-related issues.
- Ability to coordinate effectively with project teams, trade partners, vendors, and commissioning authorities.
- Strong planning, organization, analytical, and decision-making skills.
- Strong verbal and written communication skills.
- Commitment to safety, integrity, quality, and customer service.
- Ability to pass a pre-employment drug screen and background check.
- EPA certification required or must be obtained after hire.
- OSHA 10 or OSHA 30 required or must be obtained after hire.
Preferred Qualifications
- Advanced commercial HVAC startup, service, commissioning, or controls experience.
- Experience with data center, healthcare, institutional, or large commercial projects.
- Experience with DDC systems, embedded controls, sensors, actuators, VFDs, and control sequences.
- Experience supporting commissioning plans, QA/QC plans, system readiness reviews, or functional testing.
- Manufacturer training, TAB experience, controls certifications, commissioning training, or ASHRAE Guideline 0 familiarity.
A level III Startup Technician should have independent startup and troubleshooting capability of the following, and other, typical equipment and systems:
- Air handling units
- Rooftop units
- Split systems
- Chilled water systems
- Hot water systems
- Pumps
- Exhaust fans
- Supply fans
- VFDs
- Economizers
- Control valves
- Dampers and actuators
- Temperature, humidity, and pressure sensors
- DDC controls
- Data center cooling equipment
- Evaporative cooling systems
Listed on hirly, a job board. hirly is not the employer: Comfort Systems USA is hiring for this role.
Similar jobs
- Set-Up Tech I - Y ShiftTti · West Bend, WIFirst seen today
- HVAC Warranty Start-Up TechMechanical One, LLC · Fort Pierce, FLFirst seen 19d ago
- HVAC Start Up TechL&S Mechanical · San Antonio, TXFirst seen 20d ago
- Mold Set-Up TechWestlake · US - Lenexa, KSFirst seen 38d ago
- Set-Up Tech (DMNC - Blow Mold, 3rd Shift)DENSO · Battle Creek, MI, United StatesFirst seen 43d ago
Browse similar roles
Want this one?
Upload your resume and hirly rewrites it for this job and writes the cover letter — in about thirty seconds, before you sign up.
Tailor my resume for this job