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.
Restaurant Manager
Company: Benihana - Cupertino
Location: Cupertino, CA
Posted Sep 19, 2025
Must possess a valid driver’s license where applicable. Communicates with guests and employees to solve problems and ensures complete guest satisfaction.
Armed Waterborne Security Officers – Full-Time
Company: Six Maritime
Location: San Diego, CA
Posted Sep 19, 2025
Meet all state/local licensing requirements before employment. Ability to pass a background check in accordance with federal, state, and local laws.
CNC Jr. Operator DAY SHIFT
Company: C&H Enterprises
Location: Fremont, CA
Posted Sep 19, 2025
Keep machine tools in clean and working order. The activities include safe operation of CNC equipment, saws, grinders, sanders, fixtures, hand tools and…
Accountant
Company: Whishman Management LLC
Location: Mountain View, CA
Posted Sep 19, 2025
Expense Oversight: Audit and process employee expense credit card transactions and petty cash expenses. Vendor Invoice Management: Review vendor invoices,…
2025-2026 6-12 English Teacher - One-Year Appointment (September 29, 2025, - June 12, 2026)
Company: Francis Parker School
Location: San Diego, CA
Posted Sep 19, 2025
Weekly collaboration with teaching partners to maintain and develop consistency within course offerings. Daily classroom instruction; including planning and…
Customer Service and Sales Representative
Company: Confidential
Location: Cerritos, CA
Posted Sep 19, 2025
Acting as a trusted point of contact to advice customers on service offerings and develop effective solutions to meet their specific needs.
Staff Accountant (Full Charge Bookkeeper)
Company: Casa Loma College
Location: Sherman Oaks, CA
Posted Sep 19, 2025
Support and work with outside agencies (banks, payroll tax state agencies, etc). Advanced Excel (pivot tables, data analysis).
Part-Time Staff Accountant - E2
Company: Tipsy Elves
Location: San Diego, CA
Posted Sep 19, 2025
Education: Bachelor's degree in Accounting, Finance, or related field preferred (or equivalent experience). Preparation and entry of other AP accruals.
Registered Nurse (RN) - Per Diem
Company: Hydration Room
Location: Santa Monica, CA
Posted Sep 19, 2025
In this per diem Registered Nurse (RN) role, you’ll administer IV and injection therapies, provide patient education, and support overall wellness through…
Metal Detailer/Finisher
Company: C&H Enterprises
Location: Fremont, CA
Posted Sep 19, 2025
The activities include safe operation of machinery, saws, grinders, sanders, fixtures, hand tools and material handling equipment. Ability to learn new skills.
Data Engineer - Cloud Infrastructure
Company: Apple
Location: San Diego, CA
Posted Sep 19, 2025
You will be responsible for providing technical guidance, sharing observability know-how, leveraging AI pipelines, and mentoring the team to develop and deliver…
Endpoint Security Analyst
Company: Marvell
Location: Santa Clara, CA
Posted Sep 19, 2025
Bachelor’s degree in Cybersecurity, Information Technology, Computer Science, or a related field. Assist in the deployment, configuration, and maintenance of…