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.
Customer Service Representative - Telecom
Company: AMS Community Connections
Location: Culver City, CA
Posted Sep 17, 2025
Provide post-enrollment support by assisting with basic troubleshooting and answering service-related questions.
Senior Accountant
Company: CEMCO LLC
Location: City of Industry, CA
Posted Sep 18, 2025
This role routinely uses standard office equipment such as computers, phones, photocopiers, filing cabinets and fax machines. Prepare state and local reporting.
Jewelry Consultant (Sales) - Full-Time
Company: Shane Co.
Location: Cupertino, CA
Posted Sep 18, 2025
Focus on cultivating strong customer relationships, maximizing sales performance, sharing compelling product stories, and delivering an unparalleled experience…
Software Engineer - (Multiple Levels)
Company: Noblis
Location: San Diego, CA
Posted Sep 18, 2025
All qualified applicants will receive consideration for employment without regard to race, color, ethnicity, sex, age, national origin, religion, physical or…
Skilled Tradesman - Drywaller
Company: BluSky Restoration Contractors, LLC
Location: San Jose, CA
Posted Sep 17, 2025
High school diploma or GED; and at least one year of experience as a construction worker or experience in a related field preferred.
Production Machine Operator 3
Company: Parker Hannifin Corporation
Location: Gardena, CA
Posted Sep 18, 2025
Certifications: Vocational training, apprenticeships or the equivalent experience in related field. Assesses when changes or repairs need to be made to fixtures…
Skilled Laborer
Company: Onni Contracting (California) Inc
Location: Los Angeles, CA
Posted Sep 18, 2025
Follow instructions from supervisors and implement construction plans. Duties may include loading and unloading tools or raw materials, assembling scaffolding…
Software QA Engineer
Company: Intel
Location: Santa Clara, CA
Posted Sep 18, 2025
Bachelor's degree in computer science, computer engineering, electrical engineering, or a similar field and 1+ years' is relevant experience.
Porter- Limpieza
Company: Planned Companies
Location: East Palo Alto, CA
Posted Sep 18, 2025
Residential and commercial property owners, now more than ever, realize how big a role Janitors play in protecting the health of tenants, guests, and vendors.
Off Duty Officer - Retired Law Enforcement
Company: AEGIS Security & Investigations, Inc.
Location: Los Angeles, CA
Posted Sep 18, 2025
Investigating disturbances and answering alarms. Patrolling the work site on foot up to the full duration of the shift or as otherwise instructed to prevent and…
Accounting Manager
Company: NOW CFO
Location: San Jose, CA
Posted Sep 18, 2025
Ensure compliance with federal and state regulations. Conduct internal audits to assess financial status. As an accounting manager/consultant, the day-to-day…
Lead Porter
Company: Planned Companies
Location: East Palo Alto, CA
Posted Sep 18, 2025
Residential and commercial property owners, now more than ever, realize how big a role Janitors play in protecting the health of tenants, guests, and vendors.