Tech Jobs in Ontario, CA
172,792 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.
CAM Operator
Company: Cirexx International, Inc.
Location: Santa Clara, CA
Posted Aug 14, 2025
Must be able to read and interpret blueprints and other technical drawings. 5+ years experience as a CAM Operator in the printed circuit board manufacturing…
Security Guard
Company: Management & Training Corporation
Location: San Diego, CA
Posted Aug 14, 2025
Answer telephone calls and greet and assist visitors. Valid driver’s license with an acceptable driving record. Paid time off and paid holidays.
Sports Minded Sales Associate
Company: AAI Inc
Location: San Jose, CA
Posted Aug 14, 2025
Utilize business development techniques to identify and pursue new sales opportunities. Implement upselling strategies to maximize revenue from existing…
Senior DevOps Applications Engineer
Company: ASML
Location: San Diego, CA
Posted Aug 14, 2025
Logs all customer requests and updates calls utilizing the designated call handling and tracking system. Bachelor’s degree in Information Technology, Computer…
Outstanding Otology opportunity in San Diego, CA
Company: California Head and Neck Specialists
Location: America's Finest City - San Diego, CA - Enjoy the SoCal lifestyle
Posted Aug 14, 2025
Machinist
Company: Mativ Holdings, Inc.
Location: El Cajon, CA
Posted Aug 14, 2025
Machinist is responsible for the setup, programming and operation of a variety of machine tools to produce precision parts from the raw material stage to…
Jewelry Laser Welding Technician
Company: Jewelry Group
Location: Los Angeles, CA
Posted Aug 14, 2025
However, any previous experience in laser welding, jewelry making, metalwork, watch repair, dental lab work, or other related fields is a plus and will be taken…
Class A Truck Driver - Local Deliveries
Company: TCI Transportation Services, Inc.
Location: San Diego, CA
Posted Aug 14, 2025
$29.50/hour plus Overtime Pay. Aprox. 50 Hrs per week. Must clear background check - will access military bases. Weekly Paychecks | Direct Deposit Available.
Tank painter/Welder Worker/Machine Operator
Company: Hanson Tank
Location: Los Angeles, CA
Posted Aug 14, 2025
Prior heavy manufacturing experience and welding and or mechanical abilities preferred. Familiarity with hand tools helpful.
Program Associate at the Hollywood Hub
Company: Homeless Health Care Los Angeles
Location: Los Angeles, CA
Posted Aug 14, 2025
Meet, greet, and direct guests/clients to appropriate resources available on-site. The ideal candidate will be detail-oriented, organized, and take pride in…
Senior Service Technician – Industrial HVAC & Chiller Systems
Company: Smart-Tek
Location: Santa Clara County, CA
Posted Aug 14, 2025
Valid driver’s license and clean driving record; willingness to travel. In this role, you will troubleshoot, maintain, and repair advanced refrigeration,…
Senior Software Developer-Test Engineering
Company: General Motors
Location: Mountain View, CA
Posted Aug 14, 2025
Assists in maintaining optimal resource utilization across a functional area; calls out constraints and bandwidth limitations when appropriate.