Tech Jobs in Ontario, CA
172,812 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.
Security Officer - Armed
Company: Allied Universal
Location: La Jolla, CA
Posted Aug 11, 2025
A valid driver's license will be required for driving positions only. As a condition of employment, applicants will be subject to a background investigation in…
Security Monitoring Analyst
Company: ESET, LLC
Location: San Diego, CA
Posted Aug 11, 2025
Perform PR activities in the field of security according to the assignments of a superior employee (e.g., lectures at universities, conferences, etc.).
Enrolled Agent, Tax Planner
Company: J&L Creative Solutions, Recruiters
Location: San Jose, CA
Posted Aug 11, 2025
Represent clients during audits, appeals, and other interactions with the IRS or state tax authorities. Prepare and file federal and state tax returns for…
Installer – FF788
Company: Express Employment Professionals
Location: Reseda, CA
Posted Aug 11, 2025
Reliable transportation and valid driver’s license preferred. Proficient with power tools, hand tools, and fabrication equipment. _*Full time – Temp to hire*_.
Luxury Retail Sales Associate
Company: The Retail Network
Location: Palo Alto, CA
Posted Aug 11, 2025
Assist and guide customers through multiple purchasing decisions such as custom design orders and diamond options. Full company paid training provided.
Sales Associate - San Diego, CA - Johnson & Johnson MedTech, Orthopaedics
Company: Johnson & Johnson
Location: San Diego, CA
Posted Aug 11, 2025
A valid driver's license issued in the United States. The overall responsibilities of the Sales Associate position include providing clinical and customer…
Graphic Designer - Association Office
Company: YMCA of Silicon Valley
Location: San Jose, CA
Posted Aug 11, 2025
Experience in video production, photography, and/or website design/management preferred, but not required. Has the functional and technical knowledge and skills…
Aesthetic Registered Nurse
Company: Skin Laundry Comparably
Location: Campbell, CA
Posted Aug 11, 2025
Attentive, able to listen and read customers to ensure high Skin Laundry standards are always met. Assists with training (precepting), coaching, and developing…
Substitute Teacher
Company: Tradewind Subs
Location: Los Angeles, CA
Posted Aug 11, 2025
Certification: A valid California teaching credential or Emergency 30-Day Substitute Permit is needed-or a willingness to obtain one.
Substitute Teacher
Company: Tradewind Subs
Location: Los Angeles, CA
Posted Aug 11, 2025
Certification: A valid California teaching credential or Emergency 30-Day Substitute Permit is needed. Education: A bachelor's degree from an accredited…
Pharmacy General Manager
Company: Honeybee Health
Location: Culver City, CA
Posted Aug 11, 2025
*Technology enablement:* Collaborate with product and engineering teams to ensure our tools support long‑term operational goals and deliver actionable analytics…
Data Scientist
Company: Leidos
Location: San Diego, CA
Posted Aug 11, 2025
Design and develop advanced statistical and machine learning models utilizing state-of-the-art methods. Experience performing research to develop data science…