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.
Security Operations Jr. Analyst
Company: Athens Services
Location: Irwindale, CA
Posted Sep 22, 2025
Valid California driver’s license with a clean driving record. At other times, you will be deployed to the field to provide direct security support, ensuring…
AI & Machine Learning Engineer (Multiple Roles, Remote & On-Site)
Company: MLabs
Location: Los Angeles, CA
Posted Sep 22, 2025
This information is managed securely in accordance with MLabs Ltd’s Privacy Policy and Information Security Policy, and in compliance with applicable data…
Welder / Assembler – Electron Beam & Fusion Welding
Company: Coneybeare
Location: Covina, CA
Posted Sep 22, 2025
Join a precision manufacturing team performing electron beam welding, helium-arc welding, fusion welding, microscope soldering, and fine precision assembly on…
Senior Field Application Engineer – Robotics & Automation
Company: Solomon Technology Corporation
Location: Walnut, CA
Posted Sep 22, 2025
You’ll be the technical expert on robot setup, integration, and troubleshooting — ensuring our AI vision systems work seamlessly in factory environments.
Finish Carpenter/Installer
Company: Draz Investments Group
Location: Los Angeles, CA
Posted Sep 22, 2025
Familiarity with construction estimating is a plus. Knowledge of mold remediation, plastering, and trim carpentry. Sand and prepare surfaces for finishing.
Custodian Technician_APR
Company: Blackstone Consulting Inc.
Location: Palo Alto, CA
Posted Sep 22, 2025
Knowledge of safe disposal of chemical liquids and other hazardous components. Knowledge of use and maintenance of industrial cleaning equipment and appliances.
Sales and Marketing Director
Company: Ivy Living
Location: Milpitas, CA
Posted Sep 22, 2025
Create trust and connect with prospective residents and their families through phone calls and tours of the community. Knowledge of MS Word, Excel, and Outlook.
CSR - Customer Service Representative
Company: Willow Glen Pet Hospital
Location: San Jose, CA
Posted Sep 22, 2025
1-2 years of experience in the customer service field required (previous receptionist experience preferred). Ensures the front office is appropriately stocked…
Plumbing Install Technician
Company: Service Champions
Location: Brea, CA
Posted Sep 22, 2025
Current and valid driver's license in the state where you will be working. Ensure all installations and repairs comply with local, state, and federal plumbing…
Experienced Welder
Company: US Telecom Services
Location: Sun Valley, CA
Posted Sep 22, 2025
Experiences in Mig welding and use of common metal shop tools. Strongly committed to Safety and Quality. Reliable and consistently on-time.
Supply Chain and Operations Data Analyst
Company: Coherent Corp.
Location: Santa Clara, CA
Posted Sep 22, 2025
Bachelor's degree in Supply Chain Management, Operations Management, Business Analytics, or a related field. Collaborate with cross-functional teams, including…
Landscape Construction - Class A Driver and Equipment Operator
Company: Jensen Landscape Services
Location: Encinitas, CA
Posted Sep 22, 2025
CDL class A driver’s license with 2 years clean DMV record. Operation, care, use and maintenance of all hand tools, power tools and construction equipment…