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.
Senior Supermarket Rack Refrigeration HVAC Technician
Company: Walmart
Location: South Gate, CA
Posted Aug 02, 2025
Hold a valid state-issued driver’s license with a clean driving record and ability to pass a Motor Vehicle Record (MVR) report. Work vehicle and tools provided.
Plumber
Company: California State University (CSU) Northridge
Location: Los Angeles, CA
Posted Aug 02, 2025
Works on remodeling and installation of plumbing systems; makes rough sketches of installations; reads and interprets blueprints and specifications; estimates…
Estimator/Project Manager
Company: M.O.D. Restoration & Remodeling
Location: Altadena, CA
Posted Aug 02, 2025
Collaborate with project management teams to develop budgets and ensure cost control throughout the project lifecycle. Fire restoration: 2 years (Required).
Custodian III, University Village
Company: USC
Location: Los Angeles, CA
Posted Aug 02, 2025
Valid CA driver's license required. Valid driver's license may be required. Perform basic plumbing, carpentry, electrical, and painting maintenance and repair…
Journeyman Plumber
Company: RLH plumbing co
Location: Signal Hill, CA
Posted Aug 02, 2025
Driver’s license and reliable transportation. You will also help select and train apprentice plumbers to work alongside you in the field.
Commercial Service Porter
Company: Rush Enterprises
Location: San Diego, CA
Posted Aug 02, 2025
Must possess a current and valid CDL with a driving record that meets company guidelines. Keep parking lot organized, this is for new and used trucks for sale…
RN Clinical Supervisor - Hospice
Company: Apreva Hospice
Location: San Diego, CA
Posted Aug 02, 2025
Must be a licensed driver with an automobile that is insured in accordance with state and/or organization requirements and is in good working order.
Senior Supermarket Rack Refrigeration HVAC Technician
Company: Walmart
Location: Milpitas, CA
Posted Aug 02, 2025
Hold a valid state-issued driver’s license with a clean driving record and ability to pass a Motor Vehicle Record (MVR) report. Work vehicle and tools provided.
Security officer 1 - Security - Sharp System Services - Variable Shift - Per Diem
Company: Sharp Healthcare
Location: San Diego, CA
Posted Aug 02, 2025
Responds to routine calls in a timely manner. Sort, perform data entry, distribute, and file reports. This includes location of fire alarm boxes, emergency…
Senior Data Scientist
Company: Intuit
Location: San Diego, CA
Posted Aug 02, 2025
Bachelor’s degree in Engineering, Data Science, Statistics, Mathematics, Computer Science, Economics or related quantitative field; Master’s Degree preferred.
Journeyman Plumber - Contract
Company: Highland Plumbing
Location: Burbank, CA
Posted Aug 02, 2025
Comfortable working under a contractor who is actively involved and hands-on. We're upfront that this is not a permanent full-time hire at this stage.
Marine Welder - San Diego, CA
Company: Serco North America
Location: San Diego, CA
Posted Aug 02, 2025
Familiarity with NAVSEA, standard concepts, practices, and procedures within the field of electrical repair, fabrication, and installation.