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.
Data Scientist
Company: Leidos
Location: San Diego, CA
Posted Sep 23, 2025
Identify, prototype, and deploy appropriate (off-the-shelf, fine tuning, or custom) machine learning solutions utilizing state-of-the-art methods and in-depth…
Senior Software Engineer
Company: General Motors
Location: Mountain View, CA
Posted Sep 23, 2025
Responsible for the entire life cycle of the Android/QNX domain, including requirements analysis, creating design documents, code development and review,…
Framing Carpenter
Company: ADF Builders, Inc.
Location: San Diego, CA
Posted Sep 23, 2025
Looking for experienced carpenters (3-5 years), proficient in using hand tools & power tools, and woodworking machinery.
Marketing Manager
Company: GAFCON PM CM LLC
Location: San Diego, CA
Posted Sep 23, 2025
Bachelor’s degree in Marketing, Communications, Business, or related field. Experience with digital marketing tools and platforms (e.g., LinkedIn, WordPress,…
Assurance Staff Accountant (Entry Level)
Company: Abbott, Stringham & Lynch
Location: Campbell, CA
Posted Sep 23, 2025
Analyze account balances and fluctuations and develop expectations. Develop a working knowledge of firm technology, including engagement software and other…
Data Scientist
Company: Adobe
Location: San Jose, CA
Posted Sep 23, 2025
Master's or PhD in Computer Science, Data Science, Statistics, or a related field of study. Adobe will consider qualified applicants with arrest or conviction…
Equipment & Automation Engineer
Company: Rangeview Inc.
Location: El Segundo, CA
Posted Sep 23, 2025
Degree in mechanical engineering, mechatronics engineering, electrical engineering, or similar, or evidence of exceptional ability.
Lead Plumbing Installer (San Diego)
Company: Rooter Hero Plumbing
Location: San Diego, CA
Posted Sep 23, 2025
Valid driver’s license with minimal DMV infractions. Must own basic plumbing tools and battery-operated tools. Authorization to work in the U.S.
Construction Laborer
Company: CTM Apartment Services
Location: San Diego, CA
Posted Sep 23, 2025
Knowledge of basic construction tools and materials. This role requires a strong work ethic, attention to detail, and the ability to work in a fast-paced…
Data Scientist
Company: Leidos
Location: San Diego, CA
Posted Sep 23, 2025
Identify, prototype, and deploy appropriate (off-the-shelf, fine tuning, or custom) machine learning solutions utilizing state-of-the-art methods and in-depth…
Plumbing Service Technician (San Diego)
Company: Rooter Hero Plumbing
Location: San Diego, CA
Posted Sep 23, 2025
Valid driver’s license with minimal DMV infractions. Must provide own hand tools. Maintain tools, equipment, and company vehicles in excellent condition.
Junior Graphic Designer
Company: Set Active
Location: Beverly Hills, CA
Posted Sep 23, 2025
Bachelor's degree in Graphic Design, Visual Communication, or related field, or equivalent professional experience.