Tech Jobs in Ontario, CA
172,812 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.
Software Engineer Graduate (Dev Infra) - 2026 Start (BS/MS)
Company: ByteDance
Location: San Jose, CA
Posted Aug 12, 2025
Research and convert state of art computer engineering technology into the real product. Final year or recent graduate with a background in Software Development…
Customer Support Associate
Company: ABS Incorporated
Location: National City, CA
Posted Aug 12, 2025
Process all sales orders for business owners and follow through until the installation of their new service has arrived.
CALTRANS HIGHWAY MAINTENANCE WORKER
Company: Department of Transportation
Location: Los Angeles County, CA
Posted Aug 12, 2025
This classification requires a valid unrestricted class C driver's license. Working under the direction of a Caltrans Maintenance Supervisor or guidance of a…
AI Data Engineer
Company: Crowe LLP
Location: Los Angeles, CA
Posted Aug 12, 2025
Design, develop, and maintain robust data pipelines and ETL processes that enable the seamless integration, cleansing, harmonization, and transformation of data…
AI Security Engineer
Company: Crowe LLP
Location: Los Angeles, CA
Posted Aug 12, 2025
Excellent communication skills, with the ability to clearly articulate complex security topics to both technical and non-technical audiences.
Executive Chef
Company: MBK Senior Living
Location: La Mesa, CA
Posted Aug 12, 2025
In addition, at all times, during your employment, all associates must be in compliance with certain laws and regulations that affect the company, including but…
Commercial Service Plumber - Fremont
Company: AAA Facility Services
Location: Fremont, CA
Posted Aug 12, 2025
May install heating and cooling equipment and mechanical control systems. This position will be responsible for various plumbing responsibilities that include…
Security Officer for Day Shift High- Profile Luxury Boutique $21.00 Beverly Hills
Company: SMSSI of California, Inc.
Location: Beverly Hills, CA
Posted Aug 12, 2025
Possess valid CA Guard Card. Observe, report and protect all areas of the sites. Maintain a physical security presence while interacting with customers (if…
Campus Security Site Supervisor
Company: SMSSI of California, Inc.
Location: Santa Monica, CA
Posted Aug 12, 2025
Responsible for site-specific duties and tasks based on assignment, which may include customer service, loss prevention, retail security, lobby/visitor…
Fullstack Engineer, Selling
Company: Whatnot
Location: Los Angeles, CA
Posted Aug 12, 2025
They shape the technical foundation of the commerce journey, from seller tools, merchandising systems, sales formats, and checkout experience.
Sushi Chef
Company: Sushi Note
Location: Sherman Oaks, CA
Posted Aug 12, 2025
This position is paid an hourly rate plus tip pool. Experience with omakase service is preferred. Sherman Oaks, CA 91423 (Required).
Armed Security Guard - Downtown Transit Stations
Company: Allied Universal
Location: Los Angeles, CA
Posted Aug 12, 2025
A valid driver's license will be required for driving positions only. As a condition of employment, applicants will be subject to a background investigation in…