Tech Jobs in Ontario, CA
172,845 open positions · Updated daily
Ontario, CA sits in the heart of Orange County, a region that blends the innovation of the Greater Los Angeles tech corridor with a more affordable lifestyle. The city’s proximity to major hubs like Irvine, Santa Ana, and the bustling downtown Los Angeles area means tech talent can tap into a diverse ecosystem of startups, established firms, and research institutions while enjoying a lower cost of living. The presence of the Ontario International Airport further fuels a strong logistics technology sector, attracting companies that need real‑time data solutions for freight and supply chain operations.
Tech companies in Ontario span several verticals. Software and web development firms such as Adobe’s regional office and Oracle’s Irvine branch thrive here, alongside biotech innovators like Genentech’s Orange County lab and Life Sciences Park startups. The city also hosts hardware manufacturers, including Intel’s manufacturing plant in nearby Santa Ana, and telecommunications leaders like T‑Mobile’s Orange County headquarters. With the University of California, Irvine nearby, research collaborations and talent pipelines flow directly into local tech teams.
Ontario’s median rent hovers around $2,500 a month, significantly below the $3,500 average in central Los Angeles, but salaries for tech roles have been rising to match the talent demand. Salary transparency is therefore essential for candidates to negotiate competitively and for employers to attract the best talent. Knowing the exact pay range for roles such as software engineers, data scientists, or product managers helps job seekers evaluate whether a position aligns with their financial goals and lifestyle needs.
Plumbing Technician
Company: Mike Counsil Plumbing
Location: San Jose, CA
Posted Aug 01, 2025
Valid California driver's license and the ability to pass both a background check and drug screening. Do you work well on your own and enjoy interacting with…
Machine Operator - Graveyard Shift
Company: Fabrinet
Location: Santa Clara, CA
Posted Aug 01, 2025
Data collection, management and analysis. Job Summary: Performs a variety of inspection procedures to ensure quality levels at various stages of manufacturing…
Operations & Services Manager
Company: Lifemoves
Location: San Jose, CA
Posted Aug 01, 2025
A valid [State] driver’s license and reliable transportation are required. Guides and supports supervisees in understanding and setting their own healthy…
Operations & Services Manager
Company: Lifemoves
Location: San Jose, CA
Posted Aug 01, 2025
A valid [State] driver’s license and reliable transportation are required. Guides and supports supervisees in understanding and setting their own healthy…
Carpenter Assistant
Company: Chrome Hearts
Location: Hollywood, CA
Posted Aug 01, 2025
Must own your own basic carpenter and safety tools, and equipment. Knowledge of woodworking tools, carpentry machinery, and basic furniture tools.
Seasonal Part Time Sales Associate
Company: Things Remembered
Location: Palo Alto, CA
Posted Aug 01, 2025
This includes compliance with all federal, state, and local laws and maintaining a safe work environment. Follow proper cash handling procedures.
Inside Sales Representative/Customer Service
Company: Steel Vision Concepts Inc
Location: San Jose, CA
Posted Aug 01, 2025
Conduct warm calls to potential clients and follow up on leads generated through various marketing efforts. Proven experience in inside sales or a related field…
Senior Welder - Chula Vista, CA
Company: General Dynamics Information Technology
Location: Chula Vista, CA
Posted Aug 01, 2025
Uses measuring instruments and hand tools to positions pieces requiring welding into jigs, holding fixtures, guides, and steps.
Part-Time / Per Diem Auditor (CPA)
Company: Kanee Group, CPAs.
Location: Milpitas, CA
Posted Aug 01, 2025
Active CPA license (with CBA “A” designation) in good standing. Ensure appropriate documentation and quality control consistent with AICPA and state board…
Flexible Substitute Teacher Jobs - Los Angeles
Company: The Education Team
Location: Los Angeles, CA
Posted Aug 01, 2025
Collaborate with school staff and adjust to different classroom settings. Follow lesson plans and keep the day running smoothly. Minimum of 2 days per week.
HVAC Service Technician
Company: Lennox NAS
Location: San Jose, CA
Posted Aug 01, 2025
This technician performs field activities associated with supporting the installation, maintenance and servicing of heating, ventilating and air conditioning…
Route Delivery Driver / Merchandiser 4:00 am -12:30 pm
Company: Associated Services
Location: San Jose, CA
Posted Aug 01, 2025
Valid driver's license and clean driving record. You will be driving an Isuzu truck with a 14' box end. This will include snacks, beverages, coffee and break…