Interlock Installer Jobs (NOW HIRING)

Job Title: Commercial HVAC Lead Service Technician
Job Description

This senior, fully hands-on field role focuses on leading complex commercial HVAC installations, start-ups, controls integration, and service work across an active project portfolio. You will independently install, troubleshoot, commission, and service a wide range of commercial HVAC systems while coordinating closely with field crews and communicating clearly with clients and project stakeholders. The position suits a strong problem-solver with deep controls and interlocking expertise who takes pride in delivering systems that operate correctly the first time.

Responsibilities

• Take ownership of complex commercial HVAC installations, start-ups, controls integration, and service work across multiple active projects.
• Independently install, troubleshoot, commission, and service commercial HVAC systems, ensuring all equipment operates safely and efficiently.
• Integrate and interlock HVAC controls and electrical systems, including wiring, testing, and verifying proper operation of all components.
• Review and interpret mechanical, electrical, and controls drawings, schematics, and submittals to plan and execute work accurately.
• Lead field coordination by meeting with foremen and crews to walk through upcoming work and explain how to prepare systems for start-up, testing, and final inspections.
• Provide clear technical guidance to field teams to ensure systems are installed and prepared correctly for commissioning and inspections.
• Communicate clearly and professionally with General Contractors, Project Managers, Owners, and Architects to discuss system status, issues, and solutions.
• Diagnose and resolve complex HVAC, electrical, and controls issues using advanced troubleshooting and problem-solving skills.
• Produce detailed, accurate, and well-organized service and start-up reports that document work performed, findings, and recommendations.
• Ensure compliance with applicable safety standards and site safety requirements, using OSHA and NYC safety training in daily work.
• Represent the company with professionalism, technical expertise, and clear communication on every jobsite.
• Support training and mentoring of junior technicians when needed, sharing best practices and promoting high-quality workmanship.

Essential Skills

• Minimum 10 years of hands-on commercial HVAC experience, including at least 4 years in a lead or senior technician role.
• Proven expertise installing and commissioning WSHP (water source heat pumps), VRF systems, RTUs (roof top units), and DOAS (dedicated outdoor air systems).
• Strong electrical and controls background with the ability to wire, troubleshoot, and interlock HVAC equipment independently.
• Solid working knowledge of VFDs (variable frequency drives), VAV boxes, CO2, temperature, and pressure sensors, time clocks, relays, transformers, and refrigerant leak detection systems.
• Ability to read and interpret mechanical, electrical, and controls drawings, schematics, and submittals accurately.
• Excellent troubleshooting and problem-solving skills for complex HVAC and controls issues.
• Strong written communication skills with the ability to produce clean, clear, and well-organized service and start-up reports.
• Strong verbal communication skills with the ability to engage professionally with clients, general contractors, architects, and owners.
• Valid driver's license with a clean driving record.
• EPA Section 608 Universal Certification.
• NYC FDNY G-60 Gas Qualification for refrigerant systems.
• NYC FDNY F-60 Fire Safety certification for refrigerant systems.
• OSHA 30-Hour Construction Safety certification.
• NYC Site Safety Training (SST) Card.

Additional Skills & Qualifications

• Experience with building management systems and building automation systems such as Automated Logic, Siemens, Honeywell, Tridium/Niagara, and similar platforms.
• Manufacturer-specific training on major HVAC equipment brands such as Daikin, Mitsubishi, LG, Trane, Carrier, AAON, and comparable manufacturers.
• Experience working on commercial projects in New York City.
• Bilingual ability in English and Spanish or English and Russian is a plus.
• Experience training and mentoring junior technicians, including providing guidance on best practices and safety.

Why Work Here?

You will join a team that values technical excellence, clear communication, and pride in delivering systems that work correctly the first time. The organization emphasizes professionalism on every jobsite and supports ongoing growth through exposure to complex commercial projects, advanced controls, and a wide variety of HVAC technologies. You will have the opportunity to take real ownership of your work, collaborate closely with experienced field crews and project stakeholders, and build a long-term career in a safety-focused, quality-driven environment.

Work Environment

This is a field-based role focused on commercial job sites, where you will work hands-on with WSHP, VRF, RTU, and DOAS systems as well as controls, sensors, VFDs, and related electrical components. You will regularly coordinate with field foremen and crews, walking projects in advance to plan start-ups, testing, and final inspections. The environment involves close interaction with General Contractors, Project Managers, Owners, and Architects, requiring professional communication and thorough documentation. Work follows OSHA and NYC safety standards, and you will use your NYC Site Safety Training and certifications daily to maintain a safe jobsite. Hours align with typical commercial construction and service schedules, with time spent both on active rooftops and mechanical rooms as well as in client-facing discussions and report writing.

Job Type & Location

This is a Contract position based out of Brooklyn, NY.

Pay and Benefits

The pay range for this position is $50.00 - $65.00/hr.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:
• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

Workplace Type

This is a fully onsite position in Brooklyn,NY.

Application Deadline

This position is anticipated to close on Jun 10, 2026.

About Aerotek

We know that finding work is hard, and finding meaningful work is harder. Aerotek connects 180,000+ light industrial and skilled trades workers with 14,000+ employers each year, helping our workers navigate an evolving labor market and find jobs that meets their goals, skills and interests. Since 1983, we have provided a variety of career opportunities across North American industry – from short-term assignments at Fortune 500 companies where you can build your skills, to long-term opportunities where you can play a vital role solving for companies’ construction, manufacturing and maintenance challenges. Our 1,500+ experienced recruiters across 250+ offices work relentlessly to put our workforce in a position to thrive. Let us rise to meet your challenges and put our people-are everything spirit to the test as your career continues to grow.

Aerotek offers weekly pay, employee benefits including medical, dental & vision, life insurance, health advocacy and employee assistance programs, a 401(k) plan, and employee discounts.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance:
Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector:
It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI):
We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.

We know that finding work is hard, and finding meaningful work is harder. Aerotek connects 180,000+ light industrial and skilled trades workers with 14,000+ employers each year, helping our workers navigate an evolving labor market and find jobs that meet their goals, skills, and interests. Since 1983, we have provided a variety of career opportunities across North American industry – from short-term assignments at Fortune 500 companies where you can build your skills, to long-term opportunities where you can play a vital role in solving companies’ construction, manufacturing, and maintenance challenges. Our 1,500+ experienced recruiters across 250+ offices work relentlessly to put our workforce in a position to thrive. Let us rise to meet your challenges and put our people-are-everything spirit to the test as your career continues to grow.