Tech Jobs in Ontario, CA
172,827 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.
Elementary Teacher Physical Education
Company: Stratford School
Location: Santa Clara, CA
Posted Aug 08, 2025
Bachelor’s degree in a related field required. Maintain certification in First Aid, CPR, and concussion awareness. Set up equipment prior to class.
Experienced Chefs & Cooks Wanted! Good people, good food only!
Company: Faz Restaurant Group
Location: San Jose, CA
Posted Aug 09, 2025
*A Skilled Professional:* You have a solid background as a cook or chef in a professional kitchen. Your experience with Mediterranean, Mexican, or New American…
Security Officer Corporate
Company: HD Supply
Location: Santee, CA
Posted Aug 08, 2025
Monitors closed-circuit televisions and telephone hotlines for the organization’s Learning Development Center and various business locations across the country.
Commercial Masonry Estimator
Company: GPac
Location: Los Angeles, CA
Posted Aug 08, 2025
Client Interaction: Provide expert guidance and support to clients, answering questions and addressing any concerns related to estimates or masonry work.
Construction Worker
Company: Reedhaus Development
Location: Los Angeles, CA
Posted Aug 08, 2025
Operate hand tools and power tools safely and effectively. Basic knowledge of construction methods, tools, and safety practices is preferred.
Armed Waterborne Security Officers – Full-Time
Company: Six Maritime
Location: San Diego, CA
Posted Aug 09, 2025
Meet all state/local licensing requirements before employment. Ability to pass a background check in accordance with federal, state, and local laws.
Customer Service Trainee
Company: Confidential
Location: Long Beach, CA
Posted Aug 09, 2025
With our recent expansion, we’re looking for motivated individuals to step into this entry-level role, where you’ll receive hands-on training, develop industry…
Commercial Refrigeration Technician
Company: R&R Refrigeration & A/C, Inc.
Location: San Jose, CA
Posted Aug 09, 2025
\* Broad range of Commercial Refrigeration experience, including but not limited to: chillers, ice makers, walk-in coolers, freezers, blast freezers, cooks…
ELECTRICIAN
Company: Los Angeles County Metropolitan Transportation Authority (CA)
Location: Los Angeles, CA
Posted Aug 08, 2025
Knowledge of (defined as a learned body of information that is required for and applied in the performance of job tasks)Methods, materials, equipment, and…
Full-Time Pharmacist [Short Term Assignment]
Company: Alto Pharmacy
Location: Los Angeles, CA
Posted Aug 08, 2025
Ensure compliance with state and federal pharmacy regulations. Consistent with the Americans with Disabilities Act (ADA) and similar applicable state laws, it…
Security Officer
Company: Public Security Inc
Location: Los Angeles, CA
Posted Aug 08, 2025
Monitor student drop-off and pick up. Use of cellular device to record arrival, breaks , meal period and departure times.
ACCOUNTANT 1513 (REV 07-02-25)
Company: City of Los Angeles
Location: Los Angeles, CA
Posted Aug 08, 2025
In the interview, the following competencies may be evaluated: Analytical Ability; Learning Ability; Self Management; Technology Application; Responsiveness and…