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.
Tax Manager - Ultra High Net Worth Individual Practice - San Jose or San Francisco
Company: Frank Rimerman and Co LLP
Location: San Jose, CA
Posted Sep 05, 2025
Active CPA license in California - required. Experience with estate planning implementation via trusts is a plus for our larger individual clients.
Spot Welder II (Swing Shift) Temporary
Company: Vantedge Medical
Location: San Jose, CA
Posted Sep 05, 2025
Our teams work in unison, collaborating and problem-solving to serve the manufacturing needs of the top Medical Original Equipment Manufacturers (OEMs) around…
Senior Accountant (Hybrid)
Company: CV Resources
Location: San Diego, CA
Posted Sep 04, 2025
Backfill core accounting staff rotating to the implementation team. 5+ years of progressive accounting experience, preferably in healthcare, nonprofit, or…
Graphic Designer
Company: SIC Enterprise Inc
Location: Fullerton, CA
Posted Sep 04, 2025
Collaborate with the team to understand product features, target audience, and brand guidelines to ensure all design work aligns with our overall marketing…
Unarmed Security Officer – Open Interviews 10/08
Company: Platinum Security
Location: San Diego, CA
Posted Sep 05, 2025
Knowledge of first aid and CPR certification is advantageous. The ideal candidate will play a crucial role in maintaining a safe and secure environment for our…
Data Analyst
Company: Hill International, Inc
Location: San Diego, CA
Posted Sep 04, 2025
Performs data analysis and compiles technical reports and findings. Development of thorough test plans, ensuring proper functioning of reports and data…
Block Mason - Journeyman CMU
Company: Superior Skilled Trades
Location: San Jose, CA
Posted Sep 04, 2025
Must have full set of mason tools: lasers, string, mortar tools, cutting tools. This role involves precision CMU block installation and coordination with other…
Game Security Analyst (Apex Legends)
Company: Electronic Arts
Location: Los Angeles, CA
Posted Sep 05, 2025
Excellent communication skills, especially translating between individuals with and without strong technical knowledge. Experience with anti-cheat technologies.
HVAC Install Lead
Company: ASI Hastings
Location: San Diego, CA
Posted Sep 05, 2025
Licenses: Valid HVAC technician license and driver’s license. Skills: Strong technical knowledge, excellent problem-solving abilities, attention to detail, and…
Data Analyst - Business Analyst
Company: Super Micro Computer
Location: San Jose, CA
Posted Sep 05, 2025
Utilize tools such as MS Office (Excel, Word, PowerPoint), Smartsheet, and other business analysis tools to document and present findings.
Registered Nurse (RN)
Company: Hydration Room
Location: Encinitas, CA
Posted Sep 05, 2025
Pay: $48 / hour + competitive hourly tips (up to $20 / hour) bringing your potential earnings to $48 – $68 per hour! Schedule: This is a full-time position.
Staff Data Scientist
Company: Intuit
Location: San Diego, CA
Posted Sep 04, 2025
Solid communication skills: Demonstrated ability to explain complex technical issues to both technical and non-technical audiences.