Tech Jobs in Ontario, CA
172,812 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.
Chinese Speaking Pharmacist - cross-train b/w Fremont & Cupertino [Per-Diem & Part-Time Opportunity]
Company: Jade Pharmacy
Location: Fremont, CA
Posted Aug 11, 2025
Must speak Chinese (Mandarin, or Cantonese). Prefer someone with retail pharmacy experience. Able to work at both Fremont and Cupertino location a PLUS.
Security Guard Private Event
Company: PSD
Location: La Jolla, CA
Posted Aug 11, 2025
Assist with crowd control, guest directions, and general support. Professional demeanor and excellent communication skills. Job Type: Temporary / Part-Time.
HVAC Refrigeration Service Technician
Company: Nextech
Location: San Diego, CA
Posted Aug 12, 2025
EPA certification and a valid driver’s license. Diagnose and repair HVAC/R systems, including electrical, mechanical, and electronic components.
Engineering Student Assistant - Structure Construction - Technician/Field Work (Glendale, CA)
Company: University Enterprises, Inc.
Location: Glendale, CA
Posted Aug 12, 2025
Must possess a valid California driver’s license. The California Department of Transportation (Caltrans), is seeking to hire a Student Assistant, under close…
Practice Manager - Cosmetic Laser Dermatology
Company: Platinum Dermatology Partners
Location: San Diego, CA
Posted Aug 12, 2025
Must pass pre-employment background and credit check; valid driver’s license required. Valid driver's license with an acceptable driving history is required.
Part Time Organizer (Contract Position)
Company: SURJ (Showing Up for Racial Justice) Santa Clara County
Location: San Jose, CA
Posted Aug 12, 2025
Trains leader-organizers on a variety of core organizing skills including base building tactics, meeting facilitation, public speaking, media engagement, the…
Business Analyst - Data and AI Programs
Company: Meta
Location: Fremont, CA
Posted Aug 12, 2025
Cross-Functional Collaboration - Effectively communicate analyses, complex data concepts, and recommendations to technical and non-technical stakeholders across…
Critical Care Nurse (CCT RN)
Company: PRN AMBULANCE, LLC
Location: Carson, CA
Posted Aug 12, 2025
Active, unencumbered nursing license in the state of California or the ability to obtain state licensure upon offer of hire. Daily overtime over 8 hours.
Healthcare Assistant Security Manager
Company: Blackstone Consulting, Inc
Location: San Diego, CA
Posted Aug 12, 2025
Possess a valid government-issued driver’s license or state-issued I.D. Active state issued guard card preferred. To remain active, engaged, and moving;
Sales Associate
Company: Colorvision International, Inc.
Location: Long Beach, CA
Posted Aug 11, 2025
Equipment/Machinery Used: The nature of this work generally requires use of a computer keyboard, camera, tripod, cash register, printers, fax machine,…
Junior Graphic Designer
Company: Alpinestars
Location: Torrance, CA
Posted Aug 12, 2025
Bachelor’s degree or equivalent in Graphic Design, Visual Communication, or a related field. Familiarity with social media content formats and trends.
Applied AI Engineer
Company: Axle Mobility
Location: Los Angeles, CA
Posted Aug 12, 2025
Axle is rebuilding the back office of commercial vehicle operations with AI-native tools for the people who keep the world moving: drivers, technicians, service…