Tech Jobs in Ontario, CA
172,772 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.
Cybersecurity Engineer, Littoral Combat Ship Software Support (San Diego, CA)
Company: Peraton
Location: San Diego, CA
Posted Sep 26, 2025
Will have 10 years + experience analyzing log data, performing traffic analysis, executing audits, performing digital footprint and risk intelligence analysis,…
Brakes/HVAC Repair Technician - Union City, CA
Company: Top Tempo Technical
Location: Union City, CA
Posted Sep 25, 2025
Position requires mechanical experience ideally with autos, trucks, or heavy industrial equipment as well as common sense, a willing attitude and good work…
Interior Design Project Manager
Company: V2 Lighting International
Location: Beverly Hills, CA
Posted Sep 25, 2025
You will be working closely to the core aspects of the company and be invoiced in tasks such as coordinating meetings and client orders, Managing marketing…
Customer Care Specialist
Company: Suna Solutions
Location: San Diego, CA
Posted Sep 25, 2025
Make outbound and receive inbound calls to prospective leads, including real estate agents, referral partners, past clients, and recruits.
Security Shift Supervisor
Company: Marksman Security LLC
Location: Culver City, CA
Posted Sep 26, 2025
Must have a valid state security guard card. Bachelor's degree in criminal justice and/or business, or related field preferred. Must type at least 40 WPM.
In-Store Free Sample Associate
Company: Advantage Solutions
Location: San Diego, CA
Posted Sep 26, 2025
No prior experience is required as we provide training and team support to help you succeed. In this position, you'll drive sales by engaging customers through…
Delivery & Assembly Contractor Fitness and Furniture –San Jose CA
Company: AIT Worldwide Home Delivery
Location: San Jose, CA
Posted Sep 26, 2025
Must own hand and power tools and have the experience and mechanical aptitude to build products to manufacturer specifications.
Welder
Company: Machina Labs
Location: Los Angeles, CA
Posted Sep 26, 2025
The position will be responsible for ensuring compliance with industry standards, particularly AWS D17.1 Aerospace Welding Specifications, and for driving…
Plumbing Lead Installer
Company: Honeydo plumbing inc,
Location: Long Beach, CA
Posted Sep 25, 2025
Plumbing lead installer requirements include maintaining a clean driving record, driving company truck jobs and preforming installations of plumbing systems.
Compliance Analyst - Technology Compliance
Company: The Trade Desk
Location: Los Angeles, CA
Posted Sep 26, 2025
Ability to make effective and independent judgments, including the ability to develop creative solutions to difficult problems.
IAM Engineering Analyst
Company: Robotics Technologies
Location: Los Angeles, CA
Posted Sep 26, 2025
Nor will ROBOTICS TECHNOLOGIES LLC require in a posting or otherwise U.S. citizenship or lawful permanent residency in the U.S. as a condition of employment…
Auxiliary Security Officer
Company: Marksman Security LLC
Location: Culver City, CA
Posted Sep 26, 2025
Opening doors and greeting employees, visitors and contractors in a. ■ Able to interact with employees, visitors and contractors, providing.