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App & AI Developers in San Jose

AI MVPs, AI agents, AI chatbots and mobile apps for Silicon Valley startups and Bay Area companies, from our office in San Jose.

Zeebrix has an office in San Jose, California, building AI MVPs, AI agents, RAG chatbots, AI features for existing SaaS products, and mobile apps in Flutter and React Native for Bay Area startups and companies. Work runs on Pacific Time, discovery and key milestones can happen in person around the Bay Area, and every project is quoted at a fixed scope and price. A production AI MVP typically costs $30K–$70K and ships in 6–10 weeks.

A Silicon Valley office with fixed-price delivery

Bay Area founders usually face a choice between local agencies billing open-ended hours at Silicon Valley rates and offshore teams that are asleep during standup. Our San Jose office works Pacific Time, and every engagement is quoted as a fixed scope and fixed price before the build starts.

We are happy to run discovery workshops and milestone handovers in person around San Jose and the wider Bay Area. Day-to-day work runs on a shared Slack channel with a working demo every two weeks.

What Bay Area teams ask us to build

Most of the work that comes to us from the Valley falls into a few types:

  • A production AI MVP for a pre-seed or seed startup, built on the stack it will scale on
  • AI copilots and assistants added to an existing B2B SaaS product
  • RAG systems that answer questions from internal documents, with citations and access control
  • AI agents that triage email, enrich CRM records and qualify inbound leads
  • iOS and Android apps in Flutter or React Native with AI features built into the experience

How a project runs

It starts with a free 30-minute discovery call, in person or by video. After discovery you receive a fixed-scope statement of work with a fixed price and timeline. We then build in two-week sprints with a live demo at the end of each one, handle deployment and App Store and Google Play submission, and hand over the code, credentials and documentation. Ongoing support and improvement retainers start at $2,500 a month.

What we build

AI MVP Development

A production-ready first version in 6–10 weeks.

AI Integration

Claude, OpenAI or Gemini features inside the product you already run.

AI Agent Development

Agents connected to your CRM, inbox and internal tools.

Mobile App Development

iOS and Android apps in Flutter or React Native.

Typical cost and timeline

Every project is quoted as a fixed scope and fixed price after a free 30-minute discovery call. Typical ranges:

ProjectUSDTimeline
AI feature added to an existing product$10K–$25KQuoted after discovery
AI chatbot or focused AI app on your data$15K–$40K4–8 weeks
AI MVP for a startup$30K–$70K6–10 weeks
Cross-platform mobile app (iOS + Android)$30K–$70K10–16 weeks

Recent projects

Mindway: mental wellness app in React Native with daily check-ins and personalised content.
Epic Water: water management app with IoT device integration and real-time dashboards.
Bioferm: industrial process monitoring platform.

Frequently asked questions

Is Zeebrix based in San Jose?

Yes. Zeebrix has an office in San Jose, California, and a second office in Perth, Western Australia. Call the San Jose office at +1 (650) 713-6601. We work 24/7, every day of the year.

Can we meet the team in person?

Yes. Discovery workshops and key milestone handovers can happen in person around San Jose and the Bay Area. Day-to-day work runs on a shared Slack channel with a live demo every two weeks.

How much does an AI MVP cost in Silicon Valley?

A production AI MVP, with authentication, billing, analytics, admin tooling and the AI features themselves, typically costs $30K–$70K and ships in 6–10 weeks. We quote a fixed price after a free discovery call instead of billing open-ended hours.

Do you add AI features to existing SaaS products?

Yes. Adding a well-defined AI feature such as summarisation, intelligent search or an in-app assistant to an existing product typically costs $10K–$25K, because your product, authentication and data layer already exist.

Do you only work with Bay Area companies?

No. We work with companies across the United States and Australia. The San Jose office simply means Bay Area clients get local hours and the option to meet in person.

Talk to the team

Free 30-minute discovery call. You leave with a scope outline and a price range, whether or not you work with us.

Zeebrix San Jose · +1 (650) 713-6601 · info@zeebrix.com

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