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.
Machining Supervisor
Company: Mass Precision Inc
Location: San Jose, CA
Posted Aug 08, 2025
High school diploma or equivalent; technical certification or associate degree in a related field preferred. Oversee the maintenance and repair of fabrication…
Retail Sales Associate
Company: My Wireless - AT&T Authorized Retailer
Location: National City, CA
Posted Aug 08, 2025
Experience prospecting through outbound calls. Training and developing your skills to become a top My Wireless Retail Sales Associate, which leads to…
Cybersecurity Risk Analyst, Senior
Company: Booz Allen
Location: San Diego, CA
Posted Aug 08, 2025
Bachelor’s degree in a related Technology field. 5+ years of experience performing cybersecurity compliance testing using industry standard tools, including…
Senior Tax Accountant
Company: Confidential
Location: San Diego, CA
Posted Aug 08, 2025
CPA or EA certification required; CPA certification preferred. Prepare and review federal, state, and local tax returns for businesses, including 1120, 1120-S,…
Security Guard-Unarmed Security Officer
Company: WestCoast Security & Investigative Agency
Location: El Cajon, CA
Posted Aug 08, 2025
The officer assigned to this post will be expected to have good communication skills and enjoy working with people as he/she will be coordinating with internal…
Executive Chef
Company: Laurel Hardware
Location: West Hollywood, CA
Posted Aug 08, 2025
Ensure all local and state health department standards are met. Follow all local and state fire life safety guidelines. Monitor food quality and presentation.
Behavioral Health Nurse Manager- RN-Full Time (Mid-Shift)
Company: Coast Plaza Hospital
Location: Norwalk, CA
Posted Aug 08, 2025
Treats everyone as their customer; utilizes scripting and other tools to ensure consistency in customer service; Expresses recognition and shows appreciation to…
Professional Armed Security Officer
Company: Close Range International, Inc.
Location: Los Angeles, CA
Posted Aug 08, 2025
This position would require you to comply with LA City and company policy, LAPD Grooming Standards, follow post orders, have previous Law Enforcment or Military…
Consumer Products Marketing Assistant
Company: American International Industries
Location: Commerce, CA
Posted Aug 08, 2025
Social Listening and Competitive Research; keeping up-to-date on the latest products, trends, and insights across platforms (social media, blog, digital…
Electrical Trainee
Company: Power Design, Inc.
Location: Los Angeles, CA
Posted Aug 08, 2025
Assemble, install, test, and maintain electrical or electronic wiring, equipment, appliances, apparatus, and fixtures using hand tools and power tools.
SOC Analyst (Onsite)
Company: Family Health Centers of San Diego
Location: San Diego, CA
Posted Aug 08, 2025
Conduct proactive threat hunting using a SIEM, EDR and other relevant tools. This position will monitor, analyze, investigate, and threat hunt cybersecurity…
Senior IT Infrastructure Consultant - Client Advisory & Technical Leadership
Company: Bayport Networks, Inc
Location: Mountain View, CA
Posted Aug 08, 2025
Experience leading technical teams or serving as technical escalation point. Handle escalated technical issues requiring senior-level analysis.