AI Startup Jobs in Orange County
There are currently 759 AI startup jobs in Orange County from 10 companies. Top hiring companies include Anduril, Mach Industries, Omen AI. Defense & Aerospace roles make up the largest share of open positions.
10 of the 10 companies hiring in Orange County (100%) have verified funding data — most commonly Series C (3), Series G+ (2), Series A (2). Source: Fast AI Jobs company dataset, November 2026.
Top Hiring Companies
Anduril
Defense technology company building autonomous systems and AI-powered defense capabilities to transform military and border security operations.
Mach Industries
Defense technology company building unmanned defense systems and distributed manufacturing.
Omen AI
Omen AI builds miniaturized spectroscopic sensors that continuously monitor coolant, oil, and water in AI data centers and industrial machinery, detecting contamination and equipment wear in real time. Its hardware replaces the industry's slow lab-sampling process, helping operators avoid costly cooling-loop failures in liquid-cooled AI infrastructure.
Airwallex
Airwallex is a venture-backed fintech building cross-border payments and global financial infrastructure for businesses operating internationally. It offers multi-currency business accounts, global payments, cards, and embeddable money-movement APIs, and is expanding into AI-native and agentic finance products. The company runs dual global headquarters (Singapore and San Francisco) with a significant US presence and hiring footprint.
HeartFlow
HeartFlow develops AI-powered, non-invasive cardiac imaging software that analyzes CT scans to build personalized 3D models of coronary arteries, helping physicians diagnose coronary artery disease without invasive procedures. Founded in 2007 as a Stanford bioengineering spinout, the company completed its Nasdaq IPO (HTFL) in August 2025.
SonderMind
SonderMind operates a technology-enabled mental health therapy network that connects patients with licensed therapists and psychiatric providers, integrating with insurance to make therapy more accessible. The company also provides measurement-based care tools for providers.
Nourish
Nourish connects patients with registered dietitians for insurance-covered nutrition counseling, using telehealth and care coordination to support long-term behavior change.
CloudKitchens
CloudKitchens provides kitchen infrastructure and software that enable food and beverage operators to expand delivery, pickup, and food production with lower upfront capital and time.
Recent Job Listings
FAQ
How many AI startup jobs are available in Orange County?
There are currently 759 AI startup jobs in Orange County from 10 companies on Fast AI Startup Jobs.
How many of the companies hiring in Orange County are funded?
10 of the 10 companies hiring in Orange County (100%) have verified funding data, most commonly Series C (3 companies), Series G+ (2 companies), Series A (2 companies). Funding stage and amount are tracked for roughly 97% of all companies in the Fast AI Jobs dataset.
Which companies are hiring the most in Orange County?
The top hiring companies in Orange County include Anduril, Mach Industries, Omen AI. Visit each company profile for detailed job listings and company information.
What types of roles are most common in Orange County?
Defense & Aerospace roles make up the largest share of AI startup jobs in Orange County. Other common categories include engineering, research, product, and operations roles.
How often are these job listings updated?
Job listings are refreshed daily from official company career pages and public job boards. All links point directly to original application pages.
Where do the job links go?
Job links point to official company career pages or public job listings, not re-hosted application forms.