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.
Graphic Designer | Presentation
Company: Microsoft
Location: Mountain View, CA
Posted Jul 30, 2025
Bachelor's Degree in Industrial Design, Product Design, Human Computer Interaction, User Experience, Interaction Design, or related field AND 3+ years…
Senior HVAC Technician
Company: Mauzy Cooling, Heating, Plumbing & Electrical
Location: San Diego, CA
Posted Jul 30, 2025
Maintain accurate records of work performed and materials used during service calls. Troubleshoot and diagnose issues using various tools and diagnostic…
Staff Analyst II
Company: City of Santa Clara
Location: Santa Clara, CA
Posted Jul 30, 2025
Assigned programs could include housing development, housing policy analysis, community development, public works capital improvement program project…
Estimator/Project Manager - Underground Utilities
Company: TC Construction Company
Location: Santee, CA
Posted Jul 30, 2025
Coordinating effectively with owners, developers, contractors, and subcontractors. Familiarity with industry software and tools is a plus.
House Cleaner
Company: Clean Day Services
Location: San Diego, CA
Posted Jul 30, 2025
Must speak English and have means of transportation. Perform general cleaning tasks such as dusting, sweeping, mopping, and vacuuming.
Sr. Software Engineer
Company: Yoh, A Day & Zimmermann Company
Location: San Diego, CA
Posted Jul 30, 2025
Track and manage IT assets (hardware/software), including inventory control, license compliance, tagging, and lifecycle reporting.
Accountant
Company: City of Bell Gardens
Location: Bell Gardens, CA
Posted Jul 30, 2025
Essential duties and responsibilities may include, but are not limited to, the following: Preparing journal entries; assists in the preparation of year end…
2nd shift CNC Vertical Mill Machinist III
Company: Volt Workforce Solutions
Location: Poway, CA
Posted Jul 30, 2025
Skilled at reading detailed blueprints, using measuring tools, and doing accurate math. Help develop work instructions with Engineering.
Custodian
Company: La Mesa-Spring Valley School District
Location: La Mesa, CA
Posted Jul 30, 2025
HAZARDS: Exposure to cleaning agents and chemicals. Operates custodial equipment such as vacuums, mops, small hand and power tools, buffer/scrubber machines,…
Security Guard - Retail Patrol
Company: Allied Universal
Location: San Jose, CA
Posted Jul 30, 2025
A valid driver's license will be required for driving positions only. A state, county, or city issued security license is preferred.
Data Analyst, Analytics Insights
Company: Activision
Location: Santa Monica, CA
Posted Jul 30, 2025
Bachelor’s degree in a technical field (e.g., data analytics, data science, statistics, economics, or mathematics).
ELECTRICIAN, FULL TIME (35-40 HOURS) FACILITIES WEST COAST DITRICT
Company: Navy Exchange Service Command
Location: National City, CA
Posted Jul 30, 2025
Troubleshoots installs maintains and repairs electrical wiring systems related switches switch gear distribution panels and outlet boxes circuits as well as…