Thinking...
Yuehan John
BUILDER · FOUNDER · AI DEVELOPER
// SUMMARY
Yuehan John has been writing code since age 14 — across Thailand, Finland, and Silicon Valley — accumulating 8 years of hands-on product and software experience across AI, marketplaces, and community platforms. He has led teams, raised pre-seed funding through Antler, and organized large-scale events, demonstrating rare breadth for his age: technical depth, commercial instinct, and the operational range to build from zero. Currently working as AI Developer at Kokit, and founding Since Labs, an AI-native agency.
// KEY METRICS
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YRS BUILDING
€0K+
RAISED
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EVENT ATTENDEES
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HRS SAVED
// CAREER TIMELINE · 2015 — 2026
// 2015 · AGE 10 · CHINA → THAILAND
Relocated to Thailand for international schooling. Eight years, English-medium.
International Relocation
Enrolled in international school in Thailand. Eight years across cultures, English-medium from the start.
Cross-Cultural Foundation
Not rooted to one market, one language, or one way of thinking — built in from age 10.
// 2019 · AGE 14 · SELF-TAUGHT
Self-taught Python. Finished a year's course in one month. Then HTML and CSS.
Python — 1 Year in 1 Month
Started with Python turtle, got addicted. Finished the full curriculum independently in four weeks.
First Websites
Built sites in plain HTML and CSS. No framework, no roadmap — the builder identity formed here.
// 2020 · AGE 15 · THAILAND
First income: homework sales, car washing. Learned Unity and C#. Shipped games.
First Income Streams
Monetized homework answers and a car-washing service. Commercial instinct predates the technical career.
Unity · C# · Game Dev
Learned Unity and C#; built and shipped small games independently. Code as a product, not just a hobby.
// 2021 · AGE 16–17 · THAILAND → FINLAND
Ran a night-market stall. Moved to Turku, Finland alone at 17.
Night-Market Retail Stall
Sourcing, pricing, direct customer sales. Margins are real and customers are merciless.
Relocated to Finland Alone
A car accident became a catalyst. Decided on a Nordic university and packed up for Turku, Finland alone at 17.
JavaScript · Java · AP Exam
Self-taught JS, Java, and advanced Python. Compressed a semester-long AP course into one week and passed comfortably.
// 2022 · AGE 17 · TURKU, FINLAND
Entered the startup ecosystem. First AI work: stock prediction, YOLO image recognition.
Boost Turku
Began attending Boost Turku events — first real immersion in the startup ecosystem and founder culture.
Stock Prediction Model
Built, trained, tuned, and tested an ML stock-prediction model end to end in Google Colab.
YOLO · Image Recognition
Trained image-recognition models (YOLO). First serious AI work before pivoting to agents.
// 2023 · AGE 18 · TURKU
Led a 5-person international team. Built the whole product. Realized agents beat algorithms.
Fucard
AI loyalty and analytics app for restaurants and SMBs. Owned the full build — led a 5-person international team through execution.
Shift to AI Agents
Reoriented from ML modeling to AI agent development. The application is the moat, not the algorithm.
TurkuAMK Robotics Club
Co-founded the Robotics Club — opened university resources to students across all disciplines.
// 2024 · AGE 19 · FINLAND + SILICON VALLEY
Won the incubator. Flew to Silicon Valley. 200+ freelancers onboarded.
#1
Startup Journey — 1st Place
Competed solo against 10+ teams. Won first place. Earned a 2-week Silicon Valley trip.
Silicon Valley
Met Slack's co-founder/CTO, Notion's CEO, MySQL's founder, HackerOne's ex-CEO. Visited Stanford.
Newbility MVP
Built an AI freelancer-vetting tool for Upwork/Fiverr solo — working MVP, customer interviews, real traction.
200+
Freelance Marketplace
Pivoted to a video-editor marketplace. Led 3 developers, 200+ freelancers onboarded, 2,000+ waitlist, 100+ clients.
Founder Institute
Completed the 4-month program through weekly elimination rounds.
// 2025 · AGE 20 · TURKU
Organized a 200-person, 3-day hackathon. From zero to the city's biggest event.
200
Since AI Hackathon
200 attendees, 3 days, €10k prize pool, fully catered. Led 3-person core team and 50-person on-site crew.
300 Applications in 1 Month
Marketing drove 300 applications before the event. Became one of Turku's largest events on its first edition.
EiR · Boost Turku
Entrepreneur in Residence — mentored early-stage founders across the ecosystem.
Arise — AI Consultant
AI Consultant at TurkuAMK's Arise project: building AI-driven robots to support factory workers, from zero to proof-of-technology.
// 2026 · AGE 21 · ACTIVEACTIVE
Pre-seed from Antler. AI infrastructure for an entire company. Founded an agency.
Pre-seed
Silt — Co-Founder
One canvas for a team's AI chats, decisions, and reasoning trails. Built MVP and raised pre-seed from Antler.
Kokit — AI Developer
Built AI-native infrastructure from scratch: per-employee AI agents on a shared company knowledge base with tracked decisions.
Since Labs — Founder
AI-native agency building automation and AI infrastructure for traditional SMBs.
CAD Thailand
Built the website for CAD Chiang Mai — a 2,000-year-old cultural event drawing ~20,000 attendees.
// COMPANIES & ORGANIZATIONS
FucardAI loyalty and analytics app for restaurants. Led 5-person international team.
Robotics ClubCo-founded TurkuAMK's Robotics Club — opened university resources to students across disciplines.
KaewtaartDelivered a project for one of Thailand's leading supply companies.
NewbilityAI freelancer-vetting tool. Pivoted to video-editor marketplace — 200+ freelancers, 2,000+ waitlist.
Founder InstituteCompleted the 4-month program through weekly elimination rounds.
Since AINon-profit for AI accessibility. Ran the Since AI Hackathon — 200 attendees, €10k prizes.
Boost TurkuMentored early-stage founders across the Turku startup ecosystem.
Arise · TurkuAMKBuilt AI-driven robots to support factory workers, from zero to proof-of-technology.
Business TurkuWorked with Turku's city-level business development organization.
SlushWorked with Europe's leading startup conference.
AntlerRaised pre-seed for Silt through Antler's global VC and accelerator program.
SiltAI canvas for team reasoning and decisions. Raised pre-seed from Antler.
CAD ThailandBuilt the website for CAD Chiang Mai — a 2,000-year-old cultural event drawing ~20,000 attendees.
KokitBuilt AI-native infrastructure from scratch — per-employee agents on a shared company knowledge base.
Since LabsAI-native agency building automation infrastructure for traditional SMBs.
Want to build together?
I'm open to interesting problems.