Tech Jobs in Ontario, CA
172,792 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.
Assistant Chef - RWC (Part Time)
Company: Boys & Girls Clubs of the Peninsula
Location: Redwood City, CA
Posted Aug 14, 2025
Food Handler's certification (or willingness to obtain upon hire). Track inventory levels for ingredients, tools, and equipment. Assistant Chef - RWC Part Time.
Client Services Representative
Company: Confidential
Location: Lynwood, CA
Posted Aug 14, 2025
A high school diploma or GED is required; coursework or a degree in Business, Marketing, or a related field is strongly preferred.
Customer Service Rep
Company: Dcut Marketing Inc
Location: San Jose, CA
Posted Aug 14, 2025
This is an *entry-level role* — great for anyone looking to break into the professional world while building real-world customer service skills.
Aluminum TIG Welder
Company: International Marine and Industrial Applicators
Location: San Diego, CA
Posted Aug 14, 2025
Utilize personal basic tools and equipment for welding tasks if not provided by the workplace. Configure welding machines according to job requirements or…
Roofer/Laborer
Company: Lights Up Today Inc.
Location: Manhattan Beach, CA
Posted Aug 14, 2025
We’re seeking field technicians and crew leads to do Residential and Commercial Christmas Light Installations. Must want to spread Christmas cheer!
SPECIALTY PHARMACIST
Company: MedQuickRx
Location: Los Angeles, CA
Posted Aug 14, 2025
Collaborate with healthcare teams to develop individualized treatment plans. As a Pharmacist, you will play a crucial role in patient care by ensuring the safe…
IT Solutions Architect
Company: Booz Allen
Location: San Diego, CA
Posted Aug 14, 2025
Collaborate with systems and network engineering teams to assess current-state environments and identify migration dependencies.
Sous Chef
Company: Water Grill San Diego
Location: San Diego, CA
Posted Aug 14, 2025
Dining Discount for you and up to 5 guests. You will be the expert on kitchen operations from ordering, to troubleshooting variances, to developing the line…
Dual Immersion Teacher (Bilingual Spanish & English) - Certificated
Company: Voices College-Bound Language Academies
Location: San Jose, CA
Posted Aug 14, 2025
Collaborate closely with other teachers, consultants, and the principal to align curriculum across subjects, improve own and others’ instructional practices and…
Aluminum Pulse Mig Welder
Company: International Marine and Industrial Applicators
Location: San Diego, CA
Posted Aug 14, 2025
Utilize personal basic tools and equipment for welding tasks if not provided by the workplace. Configure welding machines according to job requirements or…
Telemetry RN*
Company: Legacy Personnel, Inc.
Location: Santa Clara, CA
Posted Aug 14, 2025
Bachelor's degree in nursing or related field. Registered Nurse License (in the state where care is provided). Graduate of an accredited nursing program.
Plumbing Technician
Company: Soo HIpp Plumbing and Drains
Location: Torrance, CA
Posted Aug 14, 2025
Perform quality plumbing services, including sales, repairs, maintenance, and installations. 3+ years of professional plumbing experience*.