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.
Controller/HR - Specialty Construction
Company: Confidential
Location: San Diego, CA
Posted Sep 10, 2025
Manage payroll and benefits for field and office staff. Work with banks, bonding agents, and insurance partners. Oversee hiring, onboarding, and compliance.
Registered Nurse - Primary Care / Ambulatory
Company: Matrix Providers
Location: San Diego, CA
Posted Sep 10, 2025
Possess and maintain a current unrestricted license to practice as a Registered Nurse in any 50 States, the District of Columbia, the Commonwealth of Puerto…
Senior Software Engineer - Backend Java
Company: Disney Entertainment and ESPN Product & Technology
Location: Glendale, CA
Posted Sep 10, 2025
As a valued technical member of this agile team, you will work closely with other Software Engineers, Systems Engineers, Product Owners, Project Management, and…
Entry Level HVAC Service Technician
Company: Service Champions Heating & Air Conditioning
Location: San Jose, CA
Posted Sep 10, 2025
Use a variety of hand and power tools to inspect, repair, and maintain furnaces, condensers, and compressors. Capability to work in tight spaces, climb ladders,…
Registered Nurse
Company: Arc of San Diego
Location: San Diego, CA
Posted Sep 10, 2025
CA license as Registered Nurse. . You will provide care to clients with intellectual and developmental disabilities in their own home.
Agentic AI Engineer
Company: Pop-Up Talent
Location: Redwood City, CA
Posted Sep 10, 2025
You'll develop and build high-scale services with *Node.js and Python*, deliver enterprise-scale interfaces with *React*, and play a key role in advancing our…
Audit Staff
Company: Duffy Kruspodin LLP
Location: San Diego, CA
Posted Sep 10, 2025
Active CPA license or eligibility to sit for CPA exam. Begin to identify engagement discrepancies and technical issues and conduct basic technical research.
Associate Teacher
Company: The Buckley School
Location: Los Angeles, CA
Posted Sep 10, 2025
The Buckley School is comprised of faculty who are brand new teachers to experts in their field with over 40 years of experience.
Applied Scientist II, RBKS AI
Company: Amazon.com Services LLC
Location: Sunnyvale, CA
Posted Sep 10, 2025
Research and implement the state-of-the-art computer vision and machine learning methods to deliver high-quality artifacts that meets product specifications.
Plumber (Experienced)
Company: Drain Doctor
Location: San Jose, CA
Posted Sep 10, 2025
Must have a valid driver's license. Diagnose and repair plumbing issues in residential and commercial settings. Minimum of 2 years of experience as a plumber.
Furniture Sales & Interior Design Specialist
Company: Hoot Judkins Furniture
Location: Redwood City, CA
Posted Sep 10, 2025
2+ years of sales, interior design or customer service experience. Interest in furniture, interior design, or home décor (preferred).
Security Officer (BELL GARDENS, CA. 90201)
Company: Fortiss LLC / Parkwest Casinos
Location: Bell Gardens, CA
Posted Sep 10, 2025
Must be able to obtain and maintain a current California gambling establishment employee permit, badge or license. Must possess a valid California Guard Card.