Z

Zeiss

Manufactures high-precision optical instruments and devices

Senior HVAC Technician

Full-Time
$34 - $43/hr+ Performance Bonus + Sales Commission
Senior
Ontario, CA, USA
In Person
Building TradesHVAC & Building Systems
Company Does Not Provide H1B Sponsorship

About the job

Requirements
  • A high school diploma or equivalent and completion of an HVAC trade school or equivalent technical training are required.
  • An EPA Section 608 Universal Refrigerant Certification is required.
  • A minimum of 5 years of HVAC maintenance experience in commercial, industrial, or manufacturing environments is required.
  • Hands-on experience troubleshooting HVAC mechanical systems, refrigeration systems, chilled water systems, air handling equipment, and HVAC controls and sensors is required.
  • The candidate must be able to read and interpret mechanical drawings, schematics, and equipment manuals.
  • The candidate must hold a valid California driver’s license with an acceptable driving record.
  • The candidate must be able to lift and carry up to 50 pounds; frequently climb and descend building and roof-access ladders; work from ladders, lifts, and elevated platforms for extended periods; work in mechanical rooms, manufacturing areas, and controlled environments including cleanrooms; and stand, walk, bend, kneel, and work in various positions for extended periods.
  • The candidate must respond to emergency maintenance situations as needed.
  • The candidate must use required safety procedures and personal protective equipment when exposed to fumes and airborne particles, moving mechanical equipment and parts, hazardous energy and vibration, maintenance, production and process chemicals, janitorial chemicals, loud noise, and extremely hot or cold temperatures.
Responsibilities
  • Perform preventive maintenance, inspections, troubleshooting, and repairs on commercial and industrial HVAC systems.
  • Maintain and troubleshoot air handling units, rooftop units, variable frequency drives, chillers, chilled water and glycol cooling systems, boilers and heating systems, exhaust systems, pumps, valves, and related mechanical equipment.
  • Diagnose system failures, identify root causes, and implement corrective actions.
  • Monitor and maintain required temperature, humidity, airflow, and pressure conditions throughout the facility.
  • Maintain HVAC systems supporting ISO-classified manufacturing and laboratory environments, and help ensure cleanroom environmental requirements are met, including temperature, humidity, airflow, and pressure relationships.
  • Troubleshoot environmental excursions and support corrective actions.
  • Follow cleanroom gowning, contamination control, and other applicable procedures when entering controlled environments.
  • Perform scheduled preventive maintenance using the Facilities CMMS, MPulse, and document maintenance activities, findings, repairs, and recommendations accurately in the CMMS.
  • Identify equipment deficiencies and recommend improvements to enhance system reliability and performance, proactively addressing potential issues to support facility and equipment uptime goals.
  • Monitor and troubleshoot HVAC controls through the Building Automation System, identify alarms, abnormal operating conditions, and equipment trends, and work with controls contractors and other technical resources when advanced troubleshooting or repairs are required.
  • Perform work in accordance with applicable safety and quality requirements, including OSHA requirements, Lockout/Tagout procedures, electrical safety practices, company Environmental, Health & Safety policies, quality system requirements, and procedures for medical device manufacturing.
  • Maintain accurate maintenance records and documentation, and support internal and external audits by providing required documentation and technical information.
  • Support HVAC installation projects, equipment upgrades, and facility improvement initiatives.
  • Assist with contractor coordination and verify that work is completed according to specifications and requirements.
  • Provide technical expertise and recommendations for HVAC-related projects and facility improvements.
  • Prioritize multiple tasks and respond to emergency equipment failures while maintaining customer service.
  • Work independently with minimal supervision and provide technical guidance and mentoring to junior maintenance technicians.
  • Work effectively with Production, Engineering, Quality, contractors, and leadership.
  • Work full time Monday through Friday, 7:00 a.m. to 3:30 p.m.
Desired Qualifications
  • Experience in cleanrooms or other controlled environments, medical device manufacturing, pharmaceutical manufacturing, semiconductor manufacturing, or other regulated manufacturing environments is highly desirable.
  • Experience with Building Automation Systems is preferred.
  • Experience using Computerized Maintenance Management Systems such as MPulse or similar platforms is preferred.
  • Knowledge of ISO cleanroom requirements and environmental monitoring is preferred.
  • Working knowledge of cGMP, FDA, ISO 13485, and other requirements associated with regulated manufacturing environments is highly desirable.

About the company

ZEISS is a global leader in optics and optoelectronics, serving medical professionals, industrial manufacturers, consumers, and the semiconductor industry. It designs and sells high-precision optical instruments, medical devices, semiconductor manufacturing equipment, and vision care products such as corrective lenses and eye-health services. Its products rely on advanced optics and imaging technologies to deliver accurate inspection, diagnosis, and manufacturing outcomes across healthcare, industrial quality control, consumer optics, and chip fabrication. What sets ZEISS apart is its breadth and depth: a long-standing scale in multiple markets, integrated solutions across optics, imaging, metrology, and precision engineering, and a commitment to sustainability in electricity use and carbon emissions. The company’s goal is to advance optics and optoelectronics by providing reliable, high-quality tools and services worldwide while operating in a sustainable way.

Company Size

1,001-5,000

Company Stage

Growth Equity (Non-Venture Capital)

Total Funding

$1.1B

Headquarters

Oberkochen, Germany

Founded

2001

Get referred to Zeiss

See people who can refer or advise you

Simplify Jobs

Simplify's Take

What believers are saying

  • First-half 2025/26 revenue reached €5.841 billion, with EBIT rising to €955 million.
  • ZEISS CLINIC 360 won FDA 510(k) clearance on August 19, 2026.
  • EURETINA 2026 launches expanded retina imaging, cataract systems, and DORC brand integration.

What critics are saying

  • ZEISS Meditec plans up to 1,000 cuts by 2029, signaling margin pressure.
  • Göttingen workers entered mediation in February 2026 after Zeiss targeted roughly 140 jobs.
  • ASML scanner timing controls ZEISS SMT revenue; any slip delays optics demand immediately.

What makes Zeiss unique

  • ZEISS supplies ASML's exclusive EUV optics, anchoring High-NA lithography through 2030.
  • ZEISS Medical Technology bundles imaging, software, and surgery across one ophthalmic workflow stack.
  • ZEISS CLINIC 360 and Collaborative Care tie devices, cloud analytics, and referrals together.

Help us improve and share your feedback! Did you find this helpful?

Benefits

Health Insurance

401(k) Retirement Plan

Paid Vacation

Performance Bonus

Growth & Insights and Company News

Headcount

6 month growth

4%

1 year growth

4%

2 year growth

4%
Associated Press
Oct 12th, 2026
ZEISS launches NLX X-ray inspection and DUNE wafer warpage correction for advanced chip packaging

ZEISS Semiconductor Manufacturing Technology (SMT) has launched two systems for advanced chip packaging: ZEISS NLX and ZEISS DUNE. The company announced them in San Francisco on October 12, 2026, as chips grow more complex. ZEISS NLX inspects the inside of chip packages without damaging them. It helps manufacturers spot defects in connections between stacked dies early, and it handles 300-millimetre wafers in both process development and high-volume production. ZEISS DUNE measures the topography of a wafer and corrects wafer bow individually. This helps avoid yield losses in downstream processing and prepares bonding processes. ZEISS SMT is showing the systems at SEMICON West, alongside its photomask tools. The company is also marking 100 years of business in the US in 2026.

PR Newswire
Sep 24th, 2026
ZEISS unveils retinal imaging and surgical innovations at EURETINA 2026

ZEISS Medical Technology has announced expansions to its ZEISS Retina Workflow at the EURETINA 2026 congress in Vienna. The company introduced the ZEISS ALTA DUO 300, combining OCT and fundus imaging in a single device for streamlined retinal diagnostics. ZEISS also unveiled the HMDmd CR3, a head-mounted 3D display that connects with the ZEISS ARTEVO 850 surgical microscope. The company reported that its DORC ILM-BLUE and DORC MEMBRANEBLUE-DUAL vitreoretinal surgical dyes reached a 3 million milestone. Additionally, ZEISS announced that the DORC brand will be consolidated under the ZEISS brand name, unifying the company's ophthalmic offerings. The DORC TDC VELOCE cutter continues to show improvements in 27G vitrectomy procedures, with clinical data suggesting up to 41% shorter core vitrectomy times.

PR Newswire
Sep 17th, 2026
ZEISS expands retinal imaging portfolio with new ALTA DUO 300 multimodal OCT device

ZEISS Medical Technology has expanded its retinal imaging portfolio with the launch of ZEISS ALTA DUO 300, a fully automated, compact multimodal imaging solution. The device combines optical coherence tomography (OCT) and fundus photography in a single unit, designed to provide efficient retinal assessment for eye care practices. The ALTA DUO 300 features four key diagnostic technologies: automated structural OCT with reference database and reporting, true colour fundus camera, AI-enhanced OCT-Angiography, and full chamber depth anterior OCT scanning. The device aims to integrate retinal imaging into everyday patient care through simplified workflows. The product will be showcased at the European Society of Retina Specialists congress in Vienna from 1-4 October and will be available in select markets later in 2026.

Yahoo Finance
Aug 27th, 2026
ZEISS launches DORC EVA NEXUS cataract system at ESCRS in London

ZEISS Medical Technology has launched a cataract-only configuration of its DORC EVA NEXUS ophthalmic surgical system. The system features a cataract grade selection with up to four programmable presets, allowing surgeons to optimise phaco, aspiration, and irrigation settings for each surgical step. The solution includes VacuFlow VTi pump, SMART IOP, and EVA EQUIPHACO technologies, designed to provide streamlined performance, stability, and control during procedures. It integrates with the ZEISS Cataract Workflow portfolio. The system debuted at the European Society of Cataract and Refractive Surgeons congress in London. It will become available in select European countries from September 2026, with global rollout pending regulatory approvals. The technology expands ZEISS's existing EVA NEXUS platform, which previously focused on retina workflows.

PR Newswire
Aug 19th, 2026
ZEISS CLINIC 360 receives FDA clearance for cloud-based ophthalmic data management software

ZEISS Medical Technology announced FDA 510(k) clearance for ZEISS CLINIC 360, a cloud-based software solution that aggregates ophthalmic clinical data and provides advanced analytics. The browser-based platform combines diagnostic and medical data into a comprehensive patient view, helping clinicians evaluate disease progression and support treatment decisions. The solution integrates data from DICOM-enabled diagnostic devices, including ZEISS's CIRRUS, CLARUS and HFA systems, as well as third-party devices. It features disease-based summaries, interactive analysis tools, and collaboration capabilities through ZEISS Collaborative Care. ZEISS CLINIC 360 will be available in the US in early autumn 2026 on a subscription basis with low upfront costs. The platform complements ZEISS FORUM, the company's on-premise data management system, giving providers flexibility in choosing their preferred infrastructure approach.