# Kai Brokering

> Founder of VoiceOS (YC X25). If you want to reach me, find me on X

Location: San Francisco, California, United States
Profile: https://flows.cv/kaibrokering

Hi, I’m Kai 👋 I’m a full-stack engineer focused on building user-friendly products that make everyday life easier. I’m especially interested in how Voice AI can be used in practical, helpful ways. As a co-founder of a Voice AI startup, I’m always looking for ways to integrate this technology more naturally into how we communicate.

I grew up in Tokyo and moved to the U.S. at 15. Living between two cultures has shaped how I think and work, and it’s something I bring into every project I take on.

Always happy to connect—especially if you’re working on Voice AI or anything that blends tech with real-world impact.

## Work Experience
### Founder & Full-Stack Engineer @ VoiceOS
Jan 2025 – Present | San Francisco Bay Area
VoiceOS: Building a voice-driven operating layer for productivity.

### Founder & Full-Stack Engineer @ VoiceOS
Jan 2025 – Jan 2025 | San Francisco Bay Area
RcruitOS: Built an AI voice-agent hiring platform under contract with Fortune 500 companies to automate high-volume phone interviews.

### Founder & iOS App Developer @ VoiceOS
Jan 2024 – Jan 2025 | San Francisco Bay Area
NuPhone:
Designing and developing an AI receptionist app for iOS that’s available 24/7 to answer missed calls, qualify leads, and schedule appointments.

### Founder & Full-Stack Engineer @ VoiceOS
Jan 2023 – Jan 2024 | San Francisco Bay Area
Voice API:
Designed and developed an API dashboard that enables engineers to efficiently create and deploy voice AI agents. Built with an event-driven architecture, it seamlessly integrates with diverse systems, including telephony platforms, mobile and web applications, and real-time communication frameworks like WebRTC.

### Software Engineer, Rakuten Drone @ Rakuten
Jan 2022 – Jan 2022 | Tokyo, Japan
Software Development for Drone Status Monitoring: Engaged in the creation of a cutting-edge software solution aimed at optimizing drone status monitoring for Rakuten's delivery services.

Development of E-Commerce PWA for Drone Delivery: Actively participated in a team to develop a Progressive Web App (PWA) for Rakuten's innovative Drone Delivery service.

### Software Engineer Intern @ NASA Ames Research Center
Jan 2020 – Jan 2020 | Mountain View, California, United States
Created a database with US-made drone parts to connect OEMs and suppliers. The data included the origin of every component making up the drone part. This data was used by a NASA team designing a search-and-rescue drone for the U.S. Coast Guard. (Under NDA--cannot share detailed information.)

### Engineer Intern @ NASA Langley Research Center
Jan 2019 – Jan 2019
Modeled 3D components of the ACS3 Solar Sail using CAD software. Created prototypes of the parts using various 3D printers, which were then used for testing the design and practicing assembling the solar sail.


## Education
### Y Combinator
Jan 2025 – Jan 2025

### Launch Accelerator in Early Stage Startup
University of California, Berkeley
Jan 2024 – Jan 2024

### Citris Foundry in Startup Entrepreneurship
University of California, Berkeley
Jan 2023 – Jan 2024

### Bachelor of Engineering - BE in Computer Engineering
University of California, Santa Cruz
Jan 2019 – Jan 2023


## Contact & Social
- LinkedIn: https://linkedin.com/in/kai-brokering
- Website: https://www.kaibrokering.com/
- Website: https://voiceos.com/

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Source: https://flows.cv/kaibrokering
JSON Resume: https://flows.cv/kaibrokering/resume.json
Last updated: 2026-03-20