Tech Jobs in Ontario, CA
172,792 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.
Cellular Sales Associate
Company: Square One Enterprise Inc
Location: San Diego, CA
Posted Aug 14, 2025
Imagine yourself meeting customers directly, sharing the latest wireless plans and phone options, and turning conversations into lasting relationships.
Resource Analyst
Company: California State University, Los Angeles
Location: Los Angeles, CA
Posted Aug 14, 2025
Four years of progressively responsible experience providing day-to-day administration of a program, and/or performing a variety of administrative and technical…
Electrician
Company: Arena Staffing
Location: Milpitas, CA
Posted Aug 14, 2025
Must have full PPE- Hard hat, steel toe boots, safety vest, and eye protection. Must have a minimum of 5 Years Recent Commercial Electrical Experience.
Finish Carpenter for Residential Home Contractor
Company: Silva Custom Construction, Inc.
Location: Morgan Hill, CA
Posted Aug 14, 2025
Owns own vehicle and basic tools; company to provide specialty/additional tools as needed. We are seeking a carpenter with 10-years minimum experience and…
Data Analyst 4
Company: TalentBridge
Location: San Jose, CA
Posted Aug 14, 2025
8 to 10 Years of industry experience in data/business analysis or a related field. We are looking for someone who is self-motivated, is willing to own an…
Plumber – Bay Area (San Jose)
Company: Flow City Plumbing
Location: San Jose, CA
Posted Aug 14, 2025
Utilize hand tools, power tools, and welding equipment for various plumbing tasks. Read and interpret blueprints, schematics, and technical drawings to…
Airbnb Cleaner
Company: ESPRO Cleaning Services LLC
Location: San Diego, CA
Posted Aug 14, 2025
Have your own chemicals and equipment for cleaning. Experience in commercial cleaning or hotel environments is advantageous. Job Types: Part-time, Contract.
Customer Service Associate - Convenience Stores
Company: Rebel Convenience Stores
Location: Los Altos, CA
Posted Aug 14, 2025
*Make it Rain (Responsibly):* Run the register like a pro, handle transactions accurately, and follow all cash-handling procedures.
Plumber
Company: Mike Counsil Plumbing
Location: San Jose, CA
Posted Aug 14, 2025
Valid California driver's license and the ability to pass both a background check and drug screening. Can you install, repair, and maintain residential drainage…
Pharmacist - Flu Clinics
Company: A-Line Staffing
Location: Menlo Park, CA
Posted Aug 14, 2025
Active RPh License in the state in which you are employed. 100% onsite in Menlo Park, CA. The pay for this position is $68.00 per hour.
Welder/Fabricator
Company: Jarikono grinding & machining corporation
Location: Torrance, CA
Posted Aug 14, 2025
\*Responsibilities\* - Fabricate and weld metal components according to specifications - Read and interpret blueprints, drawings, and schematics - Utilize hand…
Commercial Project Manager
Company: Solar Optimum
Location: Glendale, CA
Posted Aug 14, 2025
OSHA 30 certification will be beneficial. Ensure that all staff receive the required training and the tools required to execute the duties of their roles.