Tech Jobs in Ontario, CA
172,845 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.
Regional Support/Marketing Specialist - San Diego, CA (Carmel Valley)
Company: Anywhere Real Estate
Location: San Diego, CA
Posted Jul 24, 2025
Assist in the recruitment of agents, including pulling local non-affiliated Agent production reports, new Agent license data, and contact information; setting…
General Laborer 2 - 3
Company: QED Systems Inc
Location: San Diego, CA
Posted Jul 24, 2025
Must have experience using hand tools, power tools, or shop machinery. One year of experience working in shipyards or at construction sites.
Registered Nurse - Emergency Department (ED) | Per Diem
Company: Halcyon Nurse Staffing
Location: Van Nuys, CA
Posted Jul 24, 2025
Current and Valid CA state RN license. Graduate of accredited Nursing Program. Administer medications, IVs, and emergency interventions.
Security Guard
Company: Splinter Securities
Location: San Jose, CA
Posted Jul 24, 2025
Hiring security guards for night club event and festivitieslocated in downtown San Jose .
Project Manager
Company: 1st Century Bank
Location: San Diego, CA
Posted Jul 24, 2025
This individual contributor role is central to advancing the bank’s client experience, internal efficiencies, and long-term strategic objectives by managing…
Mobile HVAC Technician
Company: HVAC Recruitment
Location: San Jose, CA
Posted Jul 24, 2025
Mentor junior technicians and act as a field technical resource. *3–5+ years* of field experience in commercial or light-commercial HVAC systems (industry…
Private Chef (Northern Chinese Cuisine) | Live-in Position | Beverly Hills, CA
Company: SeaGo HR
Location: Beverly Hills, CA
Posted Jul 24, 2025
Must have *valid work authorization* to work in the United States. Maintain a high standard of *food quality, kitchen hygiene*, and *organization*.
SENIOR JAVA GOLANG DEVELOPER - ONSITE - MENLO PARK, CA
Company: RJM Technologies, Inc.
Location: Menlo Park, CA
Posted Jul 24, 2025
Engage in technical design discussions and contribute ideas through whiteboarding and collaboration. Design and develop core modules and features within a…
HVAC Technician - Level 2
Company: Sunbelt Rentals, Inc.
Location: Carson, CA
Posted Jul 24, 2025
Must have a valid driver's license and clean driving record free from points. Must have an HVAC Certificate, which recognizes some level of formal training as…
Manufacturing Data Analyst
Company: The New IEM, Llc
Location: Fremont, CA
Posted Jul 24, 2025
Communicate findings clearly and concisely to both technical and non-technical audiences. Bachelor’s degree in Data Science, Data Analytics, Statistics,…
Custodian
Company: Salk Institute for Biological Studies
Location: La Jolla, CA
Posted Jul 24, 2025
Must be willing to maintain First Aide/CPR/AED training/certification. Washes light and air diffusers with appropriate tools and ladders as needed to reach…
Commercial Licensor Marketing Analyst
Company: Apollo Professional Solutions, Inc.
Location: El Segundo, CA
Posted Jul 24, 2025
Proven ability to manage cross-functional communication, including setting meeting agendas, summarizing outcomes, and driving next steps.