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.
Staff GPS Receiver Principal Investigator
Company: Northrop Grumman
Location: Los Angeles, CA
Posted Oct 01, 2025
Experience with one or more of the following: time metrology, time synchronization, time and frequency transfer, design of precision timing system, clock…
Sr Staff Software Engineer
Company: Northrop Grumman
Location: Los Angeles, CA
Posted Oct 01, 2025
Designs, develops, implements, verifies and tests algorithms and software and simulation tools to perform guidance, navigation and control of aircraft,…
Modeling & Simulation Software Engineer 3 (AHT)
Company: Northrop Grumman
Location: Los Angeles, CA
Posted Oct 01, 2025
BS degree in software engineering, aerospace engineering, physics, systems engineering, or a related field is required with 5 years of experience or an MS…
Utilities Plumber
Company: UC San Diego
Location: San Diego, CA
Posted Oct 01, 2025
Required to hold a California driver's license, have a driving record in accordance with local policies/procedures, and/or enroll in the California Employer…
Staff Software Engineer
Company: Northrop Grumman
Location: Los Angeles, CA
Posted Oct 01, 2025
Experience with model-based system engineering tools (Cameo). Present your ideas to internal and external groups; lead proposal activities; and represent…
Special Education Teacher, Special Education School
Company: Wayfinder Family Services
Location: Los Angeles, CA
Posted Oct 01, 2025
In the least restrictive environment in our state-certified, non-public school, teachers develop students’ communication, mobility and functional skills to…
Business Data Analyst
Company: Robotics Technologies
Location: Santa Clara, CA
Posted Oct 01, 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…
Software Engineer
Company: Northrop Grumman
Location: Los Angeles, CA
Posted Oct 01, 2025
Experience with Git-based or other software configuration management tools. Our Engineering and Sciences (E&S) organization pushes the boundaries of innovation,…
Multimedia Graphic Designer/Video Editor
Company: San Diego County Credit Union
Location: San Diego, CA
Posted Oct 01, 2025
Responsible for moving the SDCCU brand forward through the creation of motion graphics, video, graphic design and production of credit union marketing and…
M&S Software Process & Build Engineer 2 or 3 (AHT)
Company: Northrop Grumman
Location: Los Angeles, CA
Posted Oct 01, 2025
BS degree in software engineering, aerospace engineering, physics, systems engineering, or a related field is required with 2 years of experience or an MS…
Custom Woodworker // Skilled Carpenter
Company: Mash Industries
Location: Buena Park, CA
Posted Oct 01, 2025
You’ll contribute to some of the most high-profile and expansive projects in Southern California, collaborating with leading contractors, discerning clients,…
Principal/Embedded Software Engineer (SkillBridge)
Company: Northrop Grumman
Location: Los Angeles, CA
Posted Oct 01, 2025
Experience with full software lifecycle: specification, design, implementation, integration, debug, and maintenance are required. TRAVEL: Yes, 10% of the Time.