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.
Software Engineer
Company: Zoom
Location: San Jose, CA
Posted Jul 29, 2025
Must have 5 years of experience in utilizing design and coding, object-oriented design, object-oriented design principles, master design patterns, and…
Jr Sous Chef
Company: DO & CO
Location: Redondo Beach, CA
Posted Jul 29, 2025
We refine the classics, develop the unknown and grow constantly – sometimes beyond our own expectations. Support in producing and creating high-end pastry…
Porter/Janitor
Company: LOCG LLC
Location: San Jose, CA
Posted Jul 29, 2025
Stock and maintain supply rooms. Perform and document routine inspections of quality using mobile application. Proven working experience as a janitor.
Seasonal Retail Merchandising Associate (Part-Time)
Company: Warner Bros. Discovery
Location: Burbank, CA
Posted Jul 29, 2025
We will need that out-of-state license number to check your driving history. A valid driver’s license for CA. A record of safe driving with at least 6 months of…
Per Diem – Clinical Oncology Pharmacist – Ambulatory Infusion
Company: UCLA Health
Location: Los Angeles, CA
Posted Jul 29, 2025
In additional to verifying orders and making clinical interventions, the individual will also oversee compounding in alignment with USP, Board of Pharmacy, and…
Senior Tax Accountant
Company: Number Nerds
Location: San Diego, CA
Posted Jul 29, 2025
CPA or EA license (Required). Champion continuous improvement across workflows, tools, and client service delivery. Tax accountant: 5 years (Required).
Pharmacist I - Nights - Scripps Green
Company: Scripps Health
Location: La Jolla, CA
Posted Jul 29, 2025
ACLS certification required prior to being trained to respond to codes, can be obtained within 6 months of hire. Documents the care provided to patients.
Software Development Engineer
Company: Zoom
Location: San Jose, CA
Posted Jul 29, 2025
Requires a Bachelor's degree in Computer Science, Computer Information Systems, a related field, or a foreign degree equivalent;
Pastry Sous Chef
Company: DO & CO
Location: Redondo Beach, CA
Posted Jul 29, 2025
Supervise, motivate, and assist a team of kitchen associates. Must be able to perform with a sense of urgency and a hands on approach to kitchen needs.
Project Accountant – Construction, Engineering Maintenance and Repair Industry
Company: MTS
Location: Wilmington, CA
Posted Jul 29, 2025
Assist project teams with sub-contractor payments accurately and within assigned timeline. Proficient in data entry, accounts payable, accounts receivable and…
Marketing Manager
Company: MG Properties
Location: San Diego, CA
Posted Jul 29, 2025
Ability to communicate in person, telephone, and other communications tools. Proficiency using project and workflow management tools (e.g., Asana, Workfront,…
ASSISTANT CONTROLLER
Company: MTS
Location: Wilmington, CA
Posted Jul 29, 2025
Assist with the accounting aspects of licensing and permit management for projects, ensuring compliance with local and state requirements.