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.
Experienced HVAC Service Tech
Company: ARS-Rescue Rooter
Location: Santee, CA
Posted Sep 20, 2025
Valid driver’s license & clean driving record. EPA certification (or ability to obtain). Acquire necessary tools to perform professional HVAC service.
Plumber
Company: Poway Unified School District
Location: San Diego, CA
Posted Sep 20, 2025
Valid California Class C driver's license. Operate power and hand tools, such as pipe cutters, threading machines, sewer clean-out equipment and other types of…
Senior Artificial Intelligence (AI) Engineer
Company: Frank Rimerman and Co LLP
Location: San Diego, CA
Posted Sep 20, 2025
Bachelor’s or Master’s in Computer Science, Artificial Intelligence, Machine Learning, or a related field. The role will also design, implement, and optimize AI…
High end finished carpentry
Company: Trim craft san diego
Location: La Jolla, CA
Posted Sep 21, 2025
Experienced in the areas of finish carpentry, materials of construction, building systems, interdisciplinary coordination, and construction processes on…
Data Analyst
Company: Iron EagleX
Location: Coronado, CA
Posted Sep 20, 2025
Improve the quality of data use and usability by driving an understanding and adherence to the principles of data quality management including metadata, lineage…
Executive Sous Chef
Company: Confidential
Location: San Diego, CA
Posted Sep 21, 2025
Associate degree or bachelor's Degree in the Culinary Arts or a related field, (formal culinary education) required. Excellent time management skills required.
Customer Success Specialist
Company: The Guzman Group, Inc.
Location: Santa Clara, CA
Posted Sep 21, 2025
Act as a trusted technical advisor, guiding customers from onboarding to expansion to. Previous experience in a technical sales role, such as Customer Success,…
Carpenter / Laborer
Company: INSSKI Construction
Location: Woodland Hills, CA
Posted Sep 21, 2025
Problem-solving attitude and desire to grow in the construction field. Assist with general construction duties (installation, demolition, prep, repairs, punch…
Special Education Teacher
Company: Symbal Education
Location: Morgan Hill, CA
Posted Sep 20, 2025
Monitor and assess student progress, adjusting teaching strategies as needed. Collaborate with parents, caregivers, and other educators to support student…
Public Works Project Analyst I (Procurement and Contracts)
Company: Town of Los Gatos
Location: Los Gatos, CA
Posted Sep 20, 2025
Possession and maintenance of a valid California driver’s license may be required for some assignments or responsibilities.
K-12 Substitute Teacher
Company: Scoot Education
Location: San Jose, CA
Posted Sep 20, 2025
Earn up to $200 - $263 for day-to-day assignments and more for long-term pay varies by certification, school, and assignment. A TB risk assessment or test.
Customer Service Gaming Associate
Company: Knighted Ventures
Location: Gardena, CA
Posted Sep 20, 2025
Ability to pass a lifetime background check, credit check, and drug screen for state licensure. You'll help foster exceptional customer service by nurturing a…