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.
Cybersecurity Risk Analyst
Company: Skechers USA Retail, LLC
Location: Manhattan Beach, CA
Posted Sep 02, 2025
Strong analytical skills for translating technical vulnerabilities into business risk scenarios and communicating security risks to non-technical stakeholders.
Registered Nurse Community Health
Company: AlliedUp Cooperative, Inc.
Location: San Jose, CA
Posted Sep 02, 2025
Active California RN license (required). Primary Care Triage: Assess walk-in patients and phone calls; provide safe, accurate clinical advice.
CNC Lathe Machinist
Company: Futuristics Machine, Inc.
Location: San Diego, CA
Posted Sep 02, 2025
Our manufacturing company is looking for an experienced CNC Lathe Machinists who can run a variety of CNC machines and help to enhance the productivity of our…
Sr. Maintenance Mechanic - Electrician
Company: Takeda Pharmaceutical
Location: Los Angeles, CA
Posted Sep 02, 2025
Repair, overhaul and perform corrective and preventive maintenance on plant equipment, electrical circuit and electrical controls to include but not limited to,…
Transition Specialist Representative - Silicon Valley or San Francisco
Company: Paycom Payroll Llc
Location: San Jose, CA
Posted Sep 02, 2025
The Transition Specialist Representative leads the Paycom implementation by partnering with Outside Sales Reps, Client Relations Representatives (CRR), Paycom…
Software Engineer, Ecosystems
Company: Aptos Labs
Location: Palo Alto, CA
Posted Sep 02, 2025
The Position requires a Bachelor’s degree in Computer Science, a related field or foreign equivalent, plus 5 years of progressively responsible experience as a…
Plumber Technician/Service
Company: RS Plumbing Solutions Inc
Location: Rancho Dominguez, CA
Posted Sep 02, 2025
Must possess a valid California driver's license. Strong mechanical knowledge with proficiency in using hand tools and power tools.
Machining Supervisor
Company: Mass Precision Inc
Location: San Jose, CA
Posted Sep 02, 2025
High school diploma or equivalent; technical certification or associate degree in a related field preferred. Oversee the maintenance and repair of fabrication…
Accountant
Company: LHH
Location: San Diego, CA
Posted Sep 02, 2025
Compile monthly financial summaries, analyze performance trends, and develop forward-looking cash flow models to guide decision-making.
AT&T Customer Service Associate
Company: Confidential
Location: Los Gatos, CA
Posted Sep 02, 2025
Enjoy a career enriched with opportunities where you will continuously develop your professional knowledge while being a part of our diverse and inclusive…
Accountant 25-00395
Company: Alura Workforce Solutions
Location: Long Beach, CA
Posted Sep 02, 2025
This role is ideal for someone with a strong accounting background who can step in and contribute quickly in a part-time, onsite capacity.
Executive Sous Chef
Company: Catamaran Resort Hotel & Spa
Location: San Diego, CA
Posted Sep 02, 2025
Must be able to attain a valid San Diego County Food Handler certification upon hire. Collaborates with the Executive Chef to develop, cost, and implement menus…