Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Service Technician III

Southland Mechanical

Position Overview As a Service Technician III, you'll operate as a senior/journeyman-level expert, independently handling complex commercial HVAC service calls, advanced diagnostics, repairs, maintenance, and system startups across a wide range of equipment in buildings, hospitals, schools, industrial facilities, and more. Lead service efforts on challenging jobs, mentor junior technicians, and deliver high-reliability solutions that ensure code compliance, energy efficiency, and outstanding customer satisfaction. Our people-first culture empowers your mastery with specialized training, certifications, leadership opportunities, and the fulfillment of keeping critical commercial systems running safely and sustainably nationwide. Duties And Responsibilities Independently diagnose, troubleshoot, repair, and maintain complex commercial HVAC systems, including rooftop units, split systems, chillers, boilers, VAV boxes, air handlers, central plants, controls/DDC, large-tonnage equipment, and both wet-side (hydronic) and dry-side (air-side) applications. Perform advanced repairs such as major component replacements (compressors, evaporators, condensers, controls, valves, pumps), refrigerant recovery/recharge/handling, system balancing, startup/commissioning, and retrofits/upgrades. Conduct thorough preventive maintenance, performance testing, energy-efficiency assessments, leak detection, and system optimization to minimize downtime and extend equipment life. Lead full service calls from dispatch to completion: assess on-site issues, communicate clearly with customers on findings/recommendations/solutions, coordinate parts and materials, execute work, and follow up for satisfaction. Ensure all work complies with codes, regulations, manufacturer specifications, EPA requirements, and Modigent safety/quality standards. Document service activities in detail (work orders, reports, photos, as-builts, recommendations) and maintain accurate records for billing, warranty, and continuous improvement. Mentor and guide Service Technician I and II team members by demonstrating techniques, sharing best practices, supporting on-the-job learning, and promoting safety and quality standards. Supervisory Responsibilities Yes – Provides coaching, mentoring, and technical guidance to junior Service Technicians (Levels I and II); may lead small service teams or coordinate with subcontractors on complex calls, ensuring alignment with safety, quality, and customer expectations. Requirements/Qualifications Experience: 5+ years of progressive hands‑on commercial HVAC service, repair, and maintenance experience; proven journeyman-level proficiency in diagnosing and resolving advanced system issues independently. Education: High school diploma or GED required; trade school, apprenticeship completion, or equivalent preferred. Certifications: EPA Section 608 certification (Universal strongly preferred); NATE certification, manufacturer‑specific training, OSHA 10/30‑hour, or other relevant credentials a plus. Physical Demands: Ability to regularly lift and carry up to 50 lbs, climb ladders/scaffolding/stairs, work in confined spaces or at heights, bend/kneel/crouch, reach overhead, and use diagnostic tools/equipment for extended periods; frequent standing, walking, manual dexterity, and physical stamina required. Work Environment/Safety: Primarily field‑based in commercial/industrial settings (indoor/outdoor, varying weather, rooftops, mechanical rooms); exposure to noise, dust, heights, refrigerants, electrical hazards, and extreme temperatures; must strictly adhere to OSHA regulations, EPA protocols, conduct hazard identification, and wear required personal protective equipment (PPE) such as hard hats, safety glasses, gloves, harnesses, and steel‑toed boots at all times—safety is our top priority and non‑negotiable. This is a safety‑sensitive position. Frequent regional travel within assigned market, on‑call rotations, and flexible hours (including evenings/weekends) may be required as business needs dictate. Required Skills Advanced diagnostic/troubleshooting across commercial HVAC equipment (RTUs, chillers, boilers, controls/DDC, hydronic/air systems). Refrigerant handling/recovery/recharge (EPA‑compliant), component replacement, system balancing, startup/commissioning. Proficiency with gauges, recovery machines, multimeters, combustion analyzers, and specialized HVAC test equipment. Excellent customer service, communication (verbal/written), problem‑solving, and mentoring skills. Safety leadership, documentation/reporting, multitasking, and independent decision‑making in high‑pressure situations. Modigent Overview Modigent is a national leader delivering next‑generation infrastructure, technology, and energy solutions through our family of specialized brands in HVAC, plumbing, and controls systems. With a strong coast‑to‑coast presence and extensive service capabilities, we empower customers, communities, and our over 1,500 team members to thrive with sustainable, efficient commercial building services. As part of our team, you'll contribute to thoughtful innovation and our people‑first culture rooted in service, collaboration, and integrity. Why Work at Modigent Competitive compensation based on experience and level, with opportunities for performance incentives and tool allowances where applicable. Comprehensive benefits including medical, dental, and vision coverage, plus HSA options with employer contributions in select plans, and company‑paid basic life and accidental death & dismemberment insurance. Paid time off, holiday pay, and a 401(k) retirement savings plan to support your long‑term financial well‑being. Professional development through hands‑on training, mentorship, apprenticeships, certifications, and clear career advancement paths across our nationwide operating companies. Inclusive, supportive culture that values diversity, dignity, respect, collaboration, integrity, and personal fulfillment—empowering you to build a rewarding, long‑term career. Equal Opportunity Statement Modigent is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate on the basis of race, color, religion, sex, national origin, age, disability, veteran status, genetic information, or any other protected characteristic. Third-Party Recruitment Policy Modigent and its wholly‑owned operating companies will not pay any fees for candidate introductions, resumes, or placements from recruiters, employment agencies, or staffing firms without a prior, signed recruitment agreement specifically authorizing submission for a designated position. Unsolicited resumes or candidate submissions will not obligate Modigent to any payment, and we reserve the right to pursue and hire such candidates without liability. Agencies are requested to refrain from contacting hiring managers directly; all inquiries and submissions must go through our Talent Acquisition team. #J-18808-Ljbffr Southland Mechanical

Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Service Technician III in Houston, TX vacancy
  • $75 - $85 per hour

     ...Electrical Field Service TechnicianOur client, a nationally recognized leader in electrical...  ...power services, is seeking Field Service Technicians (Level II–IV) to support acceptance and...  ...supervision; building technical foundationLevel III: Leads small crews, owns portions of... 
    Suggested
    Hourly pay
    Daily paid
    Traineeship
    Monday to Friday

    SteveRecruiter, LLC

    Houston, TX
    4 days ago
  •  ...Job Description We are on the hunt for a hands-on, adventure-ready Field Service Technician III! If you love solving problems, traveling to cool places, and working with cutting-edge equipment - this is the role for you. Join our dynamic team and take your skills to... 
    Suggested
    For contractors
    Apprenticeship
    Work experience placement
    For subcontractor

    Kodiak Labor Solutions

    Houston, TX
    2 days ago
  •  ...Overview Stewart & Stevenson is Now Hiring a Field Service Technician III at 8631 East Freeway Houston, TX 77029. Responsible for diagnosing problems and performing complex and/or major mechanical, electrical, hydraulic, and pneumatic repairs at the customer's... 
    Suggested
    Work at office
    Immediate start

    Stewart & Stevenson

    Houston, TX
    2 days ago
  • $31.6 - $50.37 per hour

     ...HVAC Service Technician III Join the world's largest HVAC company, named by Forbes as one of America's Best-In-State Employers 2025! Daikin Applied is seeking a full-time HVAC Service Technician III. In this role, you will be responsible for diagnosing, repairing... 
    Suggested
    Hourly pay
    Full time
    Local area
    Night shift

    Daikin Applied Americas

    Houston, TX
    1 day ago
  •  ...industry and apply today! Perks for all Technicians at FleetPride Weekly Pay with...  ...JOB DESCRIPTION The Mobile Technician III is expected to have mastered all aspects...  ...technician will also work in the shop between service calls. They may also be asked to... 
    Suggested
    Weekly pay

    FleetPride

    Houston, TX
    2 days ago
  •  ...Service Technician III - HVAC Your career has a home here. Ready to make an impact with a dynamic, forward-thinking company? As a leading property manager of single-family rental homes nationwide, we take great pride in creating an enjoyable living experience for... 
    For contractors
    Work at office
    Immediate start
    Weekend work
    Afternoon shift

    Progress Residential

    Houston, TX
    5 days ago
  •  ...Power Generation Field Service Technician III Stewart & Stevenson is now hiring a Power Generation Field Service Technician III at 8631 East Freeway Houston, TX 77029. Responsible for identifying abnormalities with customer's power generation equipment at the customer... 
    Work at office
    Immediate start

    Stewart & Stevenson

    Houston, TX
    4 days ago
  •  ...We're looking for Field Service Technicians with strong testing and troubleshooting experience who are ready to take on challenging fieldwork across the country. In this hands-on role, you'll test, maintain, and commission low to high-voltage systems at power plants,... 
    Daily paid
    Work at office

    RMS Energy

    Houston, TX
    4 days ago
  •  ...have over thirty manufacturing and assembly plants worldwide servicing over 10,000 customers in more than 100 countries. Worldwide headquarters...  ..., as needed Provides oversight and training for new/junior technicians, as directed by the Service Manager/Supervisor Evaluate the... 
    Traineeship
    Work at office
    Local area
    Worldwide
    Night shift

    EnerSys Corporation

    Houston, TX
    3 days ago
  •  ...required for repairs and maintenance. Conduct routine preventive maintenance according to established schedules. Assist senior technicians on larger and more complex projects. Maintain a clean and safe work environment. Follow all quality standards and safety... 
    Work at office

    Vets Hired

    Houston, TX
    1 day ago
  •  ...Group we build for the future. Yours and ours. As a Field Technician III , you will develop new skills, work in a safety-minded...  ...MasTec family and help us provide the highest level of quality service to our customers and communities while maintaining our commitment... 
    Temporary work
    Work at office
    Local area
    Flexible hours
    Night shift
    Weekend work

    MasTec Communications Group

    Houston, TX
    3 days ago
  • $10k

     ...Field Mechanic III Sunstate Equipment Co.: Where Safety and People are Core Values! We take care of our People and it shows!...  .... Basic computer skills for work orders, parts ordering, and service documentation. Ability to inspect, maintain, diagnose, and repair... 
    Weekly pay
    Immediate start
    Monday to Friday

    Sunstate

    Houston, TX
    3 days ago
  • $30 - $42 per hour

     ...provides technical maintenance, repair, operations, and engineering services for uninterruptible power supply (UPS) systems, backup power...  ...Pearce visit Your Impact As a Solar Field Service Technician III (Utility-Scale / PV Repair), you'll work on large, utility-... 
    Hourly pay
    Daily paid
    Full time
    Work at office
    Local area
    Flexible hours

    Pearce Services

    Houston, TX
    25 days ago
  •  ...Worldwide Power Products We are looking for a Level III Generator Technician , you will install, troubleshoot, repair, and maintain diesel...  ...-sponsored trips. What You’ll Do (Your Day-to-Day) Service Support Perform basic preventive maintenance and assist... 
    Full time
    Apprenticeship
    Worldwide
    Flexible hours

    WORLDWIDE POWER PRODUCTS LLC

    Houston, TX
    2 days ago
  •  ...Join Integrated Power Services If you're searching for a place where you can grow, continue learning, and make a meaningful impact while...  ...5 or more years of relevant experience NETA Certification (III or IV) highly preferred or equivalent skills/experience to become... 
    For contractors
    Flexible hours
    Night shift
    Weekend work

    IPS PowerServe

    Houston, TX
    1 day ago
  •  ...Field Service Technician IV Job Title: Field Service Technician IV Department: Field Services Group: Regular – Full Time Location...  ...Reciprocating Compression. Meets all sublevel (FS Technician I, II & III) requirements. Clear, concise, and accurate service... 
    Full time
    Work experience placement

    Cooper Machinery Services

    Houston, TX
    2 days ago
  •  ...Job Description Job Description J ob Title:   Field Service Technician III Job Description: Trystar is a leader in power inverters, distribution equipment, and related services at the heart of supporting our electrical infrastructure. Our team members focus... 
    Apprenticeship

    Trystar Inc

    Houston, TX
    26 days ago
  •  ...Service Technician III The Service Technician III is responsible for assisting and oversight of the physical assets, general maintenance repairs, apartment make-readies, and preventive maintenance and construction or rehabilitation projects for the property. Responsible... 
    Work at office
    Local area
    Monday to Friday

    BH

    Houston, TX
    4 days ago
  •  ...Controls Mission Critical Services Technician The Controls Mission Critical Services Technician is responsible for maintaining, troubleshooting...  ...or mission-critical facility exposure preferred. Level III Senior Controls Mission Critical Technician Primary Focus:... 
    Night shift
    Weekend work

    Upchurch

    Houston, TX
    2 days ago
  •  ...We're looking for Senior Field Service Technicians with strong electrical expertise and leadership experience to support critical energy infrastructure...  ...or advanced system protection analysis NETA Level III certification preferred: journeyman or equivalent accepted... 
    Daily paid
    Remote work
    Shift work

    RMS Energy

    Houston, TX
    2 days ago
  • ## Service TechnicianApply: Onsite: Houston, TX: Full time: Posted Yesterday: JR117069**Who We Are**BH Management, LLC is a people...  ...tackle what’s next. Come join us!Position Summary: The Service Technician III is responsible for assisting and oversight of the physical... 
    Full time
    Work at office
    Local area
    Monday to Friday

    LiveBH

    Houston, TX
    1 day ago
  •  ...to empower our clients by actively leveraging our broad range of services. With our global presence, we have career opportunities all...  ...position supports Department of State Worldwide Protective Services III (WPS III) Task Orders (TO) in austere environments. Duties... 
    Worldwide
    Overseas
    Long distance

    Janus Global

    Houston, TX
    19 hours ago
  • $27 per hour

     ...Maintenance Technician III The Maintenance Technician III will lead maintenance activities, performing complex maintenance tasks such...  ...wellness and mental health resources, and financial advising services. Eligibility in benefit programs is based on hours worked per... 
    Hourly pay
    Full time
    Flexible hours
    Shift work
    Weekend work
    Afternoon shift

    Liberty Diversified International

    Houston, TX
    2 days ago
  •  ...Maintenance Technician III Tricon is an owner, operator and developer of single-family rental homes in the U.S. and multi-family apartments...  ...requires strong communication skills, exceptional customer service, and the ability to manage and complete service requests... 
    Local area

    Tricon Residential

    Houston, TX
    2 days ago
  •  ...Job Description Job Description Auto Mechanic | Automotive Technician AutoNation Chrysler Dodge Jeep Ram Houston  is looking for...  ...Mechanics | Automotive Technicians  to join our industry leading Service Team. Enjoy excellent pay and performance incentives at a... 

    AutoNation Chrysler Dodge Jeep Ram of Houston

    Houston, TX
    3 days ago
  •  ...Job Description Job Description Refrigerant Service Technician The skill set and knowledge surrounding this role is heavily based on applicant’s experience. Summit Refrigerants works primarily in the light to heavy commercial and industrial applications of different... 
    Work experience placement
    Night shift

    Summit Refrigerants

    Houston, TX
    22 days ago
  •  ...Dock & Door Technician Miner Ltd, an OnPoint Company, is an industry-leading service and equipment solutions provider with branch-based operations across the country....  ...effectively while in the field. Senior Level (Level III) – possesses experience in basic repairs in the... 
    Apprenticeship
    Flexible hours
    Night shift
    Weekend work

    The Miner Corporation

    Houston, TX
    2 days ago
  •  ...Description Who We Are This position is with Seneca Companies, an OWL Services Affiliated Company. OWL Services is the premier sales,...  ...and follow us on LinkedIn.   Job Title: Petroleum Installer III Job Description: Oversee responsible, safe, and efficient... 
    Daily paid
    Temporary work
    For subcontractor
    Night shift

    OWL Services

    Houston, TX
    14 days ago
  • Maintenance Technician III - H‑E‑B Location: Houston, TX Job Summary As a Maintenance Technician III, you will work in a team environment to support plant production, ensure process equipment reliability, and collaborate with the Maintenance Team Leader and Production... 
    Full time
    Local area
    Night shift

    H-E-B

    Houston, TX
    2 days ago
  • $24 - $39 per hour

     ...that communities depend on when it matters most. As a Mobile Service Technician, you're the person who keeps those units running safely and reliably...  ...through a tricky diagnostic call (Mobile Service Technician III+) Recommends a process change after spotting a recurring issue... 
    Hourly pay
    Flexible hours

    DeKalb Health

    Houston, TX
    1 day ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Service Technician III. Be the first to apply!