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 Expert - Onsite
Company: Intuit
Location: San Diego, CA
Posted Sep 24, 2025
Interact with customers both in-person and through Intuit’s state-of-the-art video communication tools. Minimum of 2 years of paid experience filing 30 or more…
Customer Support Associate
Company: Woodland Hills Associates CA
Location: Los Angeles, CA
Posted Sep 24, 2025
The Customer Support Associate role is a full-time, permanent opportunity with uncapped earning potential. By blending expertise in client relations, sales, and…
Marine Electrician II
Company: Continental Tide Defense Systems
Location: San Diego, CA
Posted Sep 24, 2025
Applicant must be familiar with NAVSEA, standard concepts, practices, and procedures within the field of electrical repair, fabrication, and installation.
Project Manager/Estimator - 20897
Company: Mattson Resources
Location: Los Angeles, CA
Posted Sep 24, 2025
Coordinate field staff, design team, and fabrication schedules to ensure timely delivery. Comfortable using project management tools and digital file…
Software Build Engineer
Company: Apple
Location: San Diego, CA
Posted Sep 24, 2025
Demonstrate willingness to ask for clarification and context to understand the big picture - Find multiple solutions to a problem, evaluate tradeoffs, and…
Data Scientist
Company: SCAN
Location: Long Beach, CA
Posted Sep 24, 2025
Bachelor’s degree in statistics, mathematics, computer science, or related field of study preferred. Master’s degree in statistics, mathematics, computer…
Residential Security & Executive Protection Agent
Company: Crisis24
Location: Palo Alto, CA
Posted Sep 24, 2025
Possess a valid and current driver’s license. Required – Possess a valid and current BSIS issued CA Guard Card and Exposed Firearm Permit.
Software Development Engineer
Company: Elekta
Location: San Jose, CA
Posted Sep 24, 2025
You will collaborate with cross-functional teams to design innovative, user-friendly solutions that enhance our product offerings and support interoperability…
Project Manager
Company: Scott Humphrey Corporation
Location: San Diego, CA
Posted Sep 24, 2025
Coordinate with architects, general contractors, field teams, and vendors. I’m currently working with a well-respected *glass and glazing contractor based in…
Tax Expert - Onsite
Company: Intuit
Location: San Jose, CA
Posted Sep 24, 2025
Interact with customers both in-person and through Intuit’s state-of-the-art video communication tools. Minimum of 2 years of paid experience filing 30 or more…
Business Developer – Blockchain Consulting Company
Company: Auxis Technologies, Inc.
Location: Long Beach, CA
Posted Sep 24, 2025
This role requires someone with a deep understanding of blockchain’s value across industries, excellent communication skills, and a proven track record of…
Senior CNC Machinist
Company: DMC Power, Inc.
Location: Carson, CA
Posted Sep 24, 2025
Ability to read and interpret mechanical/engineering documents and drawings; mechanical aptitude and good math skills; a keen eye for detail and results-driven…