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.
Resident Manager II (Town Park Towers - 1358)
Company: EAH INC.
Location: San Jose, CA
Posted Sep 24, 2025
Must be able to develop and implement budgets and have tenant relations experience. The Resident Manager II is directly responsible for managing the site to…
Sales Assistant
Company: Confidential
Location: Pasadena, CA
Posted Sep 24, 2025
At least 1 year of experience in sales, customer service, or a similar entry-level, client-facing role. Collaborate closely with the enrollment team to design…
Construction Project Manager
Company: CORE CONSTRUCTION
Location: San Diego, CA
Posted Sep 24, 2025
Bachelor’s Degree in Construction Management, Architecture, Engineering, or related field preferred. Coordinate with internal teams, subcontractors, clients,…
Unarmed Flex Security Officer
Company: Prosegur
Location: Los Angeles, CA
Posted Sep 24, 2025
Availability to answer calls and solve issues during their shift. Instead, they are given PILOBEN (Pay in lou of benefits) so they can purchase them on their…
Welder - Level 1
Company: Precision Castparts Corp.
Location: South Gate, CA
Posted Sep 24, 2025
Person, as defined in those regulations, and able to supply evidence of that qualification prior to starting work or be authorized to receive controlled…
Accountant II
Company: Family Health Centers of San Diego
Location: San Diego, CA
Posted Sep 24, 2025
California law requires all drivers to obtain a valid California driver’s license within ten days of establishing residency.
Chef Instructor – Pastry and Baking Arts Adjunct
Company: Institute of Culinary Education (ICE)
Location: Pasadena, CA
Posted Sep 24, 2025
Conduct in-classroom demonstrations as required by curriculum. Demonstrate techniques and concepts as required by the curriculum.
Security Training /Development Specialist
Company: Platinum Security
Location: Los Angeles, CA
Posted Sep 24, 2025
Act as a resource for new hires, answering questions and providing performance feedback. Able to conduct in depth field training. Expected hours: 40 per week.
Ornamental Iron Fabricators & Welders Needed
Company: South Coast Iron
Location: Placentia, CA
Posted Sep 24, 2025
Shall be able to read and understand drawings, saw cut,layout, fit up, weld, use power tools, grind and any other duties that are required by the project.
Field Welder (LA CITY certified)
Company: Coneybeare
Location: Long Beach, CA
Posted Sep 24, 2025
Looking for mid-level certified field welder, millwright, installer, rigger in structural steel. Use power tools, hydraulic tools, and pneumatic machinery like…
Tax Manager
Company: LedgerWay, Inc.
Location: Los Angeles, CA
Posted Sep 24, 2025
Expertise in federal, state, and local tax laws, as well as tax planning strategies. The ideal candidate will have a minimum of 8 years of experience in tax…
Customer Support Team Member
Company: Confidential
Location: Los Angeles, CA
Posted Sep 24, 2025
Build in-depth knowledge of telecom products and services—including plan features, installation steps, and coverage areas—to effectively guide and educate…