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.
Entry Level Customer Service Associate
Company: Confidential
Location: El Cajon, CA
Posted Sep 16, 2025
Communicate professionally and regularly with other entry-level team members to troubleshoot any issues swiftly and efficiently.
Temporary Water System Maintenance Worker
Company: California Water Service Group (CWSG)
Location: Los Altos, CA
Posted Sep 16, 2025
Must possess a High School diploma or equivalent, a valid California Class C Driver’s license, and be insurable under the Company’s policy.
Full Cycle Accountant
Company: Sprout LA
Location: Torrance, CA
Posted Sep 16, 2025
The accountant ensures that all financial transactions comply with local, state, and federal regulations while identifying areas for cost control and process…
CNC Machinist
Company: DANTE VALVE COMPANY
Location: Bellflower, CA
Posted Sep 16, 2025
Complete manufacturing reports related to machined parts. The CNC Machinist is responsible for using computer-controlled machines to fabricate parts from…
Assistant Project Manager
Company: AE Recruiting LA
Location: Santa Clara, CA
Posted Sep 16, 2025
Must have a car/driver’s license. Must have experience in the construction field. Assist Project Manager by overseeing construction projects on site.
Customer Care Representative
Company: OTS Empire, inc
Location: Santee, CA
Posted Sep 16, 2025
Work alongside senior leaders to develop and implement effective sales strategies. Utilize customer service and sales techniques to educate customers about new…
Residential Porter (Part-Time)
Company: WasteXperts by Ally Waste
Location: Menlo Park, CA
Posted Sep 16, 2025
*Valid driver’s license (non-CDL) and clean driving record (no major violations in the last 3 years or more than 2 minor violations*, *including a handheld…
AWS Greengrass Architect
Company: Vegazva Group
Location: Brea, CA
Posted Sep 16, 2025
Bachelor’s or Master’s degree in Computer Science, Electrical Engineering, or related field. Design and implement edge computing solutions using AWS Greengrass…
Housekeeper/Laundry Aide
Company: Hillcrest Heights Healthcare Center
Location: San Diego, CA
Posted Sep 16, 2025
Handles reasonable guests’ complaints/requests and informs others when required to ensure patient and guest satisfaction.
Assistant Project Manager
Company: Milroy Construction Inc.
Location: Los Altos, CA
Posted Sep 16, 2025
This position is ideal for candidates with a background in construction management, engineering, or architecture, as well as those with project engineering…
Special Education Teacher
Company: Professional Tutors of America, Inc.
Location: Chula Vista, CA
Posted Sep 16, 2025
Utilize learning technologies to facilitate effective teaching and track student progress. Foster a nurturing atmosphere that encourages students to express…
Medical Insurance Customer Service Representative
Company: Medical Professionals
Location: San Jose, CA
Posted Sep 16, 2025
Answer incoming calls efficiently in a high call volume setting. Must have knowledge of proper phone etiquette and delivering high level of customer service.