Hello there, I'm Kai Yin!
I build software that powers real products. Currently shipping AI/ML stacks from neural network to SoC at Upbeat Technology.
If you'd like the structured view, here's my resume .
Below is the narrative version for why I keep betting on fast-moving ventures and what I've shipped along the way.
Biography
Growing up in Taichung, I was always curious about how things worked—and what lay beyond what I could see. That curiosity deepened when I discovered Silicon Valley (2014–2019). The show captured something I hadn't seen before: people just building things. Lots of things. From messy apartments to half-baked startups. They didn't always succeed, but they kept shipping. That moment shifted something for me. If they could do it, why couldn't I?
But I also noticed something else. Taiwan's hardware semiconductor industry was world-class - TSMC, Delta Electronics, MediaTek, Foxconn, the whole ecosystem. Yet our software story still felt incomplete. I decided I wanted to be part of bridging that gap: connecting Taiwan's hardware strength with software innovation to build products that actually matter.
National Yang Ming Chiao Tung University gave me the foundation. B.Eng. and M.Eng. in Electrical & Computer Engineering. More importantly, those years taught me how to keep learning. I discovered my biggest strength wasn't any particular technology—it was slowing down, looking deeper, and finding patterns in messy problems. That mindset still guides how I work today.
My internships at ITRI and GallopWave were my first chance to connect theory with reality. I built motion-forecasting networks for real local Taiwan's traffic. I designed 3D point-cloud pipelines for L4/L5 autonomous vehicles. I saw how good engineering isn't about perfect theory—it's about making things work reliably when real data gets messy and unpredictable.
At InQuartik, a patent-intelligence SaaS company, I shifted from research robotics to products that real users depended on. This was terrifying at first. Someone's business, someone's payroll, someone's actual problem if my code broke. I learned about maintainable architecture. CI/CD. Collaborating with product teams who needed features yesterday. I also learned how fast market needs change what we build—and how quickly we must adapt.
Now I'm at Upbeat Technology, a venture team building RISC-V SoCs with dedicated AI accelerators. We're designing neural network stacks from research to production silicon. Since I joined, I've watched the team grow, our product move from R&D to production, and revenue multiply. Beyond the technical work, I'm learning something new: what it actually takes to turn an idea into a company.
Career Timeline
Roles that shaped how I build software — from research labs to real-world impact.
- Software Engineer @ Upbeat TechnologyJul 2024 → Present (1y 8m)
- Shipped AI compiler stack to production silicon
- Scaled neural network models to run efficiently on resource-constrained SoCs
- Software Engineer Intern @ InQuartikJan 2022 → Dec 2023 (1y 11m)
- Cut manual marketing workload by 60% through HubSpot & Apollo CRM automation
- Built multi-tenant Vue + Spring MVC features for patent analytics SaaS
- Software Engineer Intern @ Industrial Technology Research Institute (ITRI)Oct 2021 → Oct 2022 (1y)
- Built motion-forecasting networks and 3D point-cloud pipelines for Taiwan's autonomous vehicle ecosystem
- Software Engineer Intern @ GallopWaveJun 2021 → Sep 2021 (3m)
- Delivered C++ testing harness for embedded visual-inertial odometry systems
- Validated across IMU/Camera/GPS configurations for real-time robotics applications
Selected Builds
A few products and projects that capture what I like to ship.
House168
2024 → Now4,000+ real estate agents and agencies depend on this platform. Delivered full-stack solutions.
- Full-stack
- Data Engineering
doudou.jobs
2025 → NowSingapore's Employer of Record brand needed an ERP that actually works. Built full-stack system serving HRNetGroup's doudou marketplace.
- Full-stack
- System Design
- ERP
Motion Prediction on Waymo Open Dataset
20228th place globally on Waymo Open Dataset—multi-agent trajectory forecasting for autonomous vehicles. Honored to be part of the team with my senior lab mentor, which greatly enriched my research experience.
- Autonomous Driving
- Waymo
- Deep Learning
Multi-Modal Motion Prediction using Temporal Ensembling with Learning-based Aggregation
2024Open source IROS 2024 paper codebase on multi-modal motion prediction for autonomous vehicles.
- Computer Vision
- Deep Learning
- PyTorch
- Motion Prediction
- L4/L5 Autonomous Vehicles
- Argoverse 2 Dataset