Expert Sapiens
Expert marketplace built for the age of AI agents hiring humans.
161 visitors·33K impressions·28d
MarketplaceFounder2026
Wonsuk Choi — Full-Stack Engineer & Founder
Full-stack engineer & founder. I build web, iOS, and Android apps for fragmented markets — healthcare, immigration, legal, real estate — designed to grow organically through search.
Available for consulting
Work with me →Usually responds within 24h
Projects 10
Apostille First
Apostille and document legalization service for Korea-issued documents. Faster, simpler, fully guided.
12 visitors·1.8K impressions·28d
LegalFounder2026
Mr. Visa Korea
Visa help in Korea powered by AI trained on the most up-to-date South Korean visa information. Knowledge base kept current for users and experts to efficiently navigate scattered immigration data.
63 visitors·3.8K impressions·28d
ImmigrationFounder2026
Airlinkee
Professional link page platform for experts. Share services, booking links, socials, and credentials from a single, beautiful page with AI-powered assistance and analytics to convert visitors into clients.
39 visitors·6.7K impressions·28d
SaaSFounder2026
Seoul Homes
Real estate platform for foreigners in South Korea. One of the most visited property sites for expats - rentals, sales, and short-term stays across Seoul and beyond.
14K visitors·235K impressions·28d
Real EstateFounder2026
Seoul Translate
Professional translation services in Seoul for apostille-ready documents, immigration paperwork, and business contracts.
15 visitors·627 impressions·28d
TranslationFounder2026
Seoul Apostille
Map-based directory for administrative agents in South Korea. Register to find and connect with verified apostille and document agents near you.
LegalFounder2026
Wonsuk Choi
Portfolio website and product hub. Also building the backend for Optimizer, a private all-in-one internal platform replacing multiple third-party tools, currently used privately with a public release planned later.
7 visitors·1.2K impressions·28d
PortfolioFounder2026
Medipanion
Multilingual platform helping foreigners navigate healthcare in Korea.
56 visitors·3.7K impressions·28d
HealthcareFounder2025
Online Medical Tools
Free online medical calculators and health tools. Compute health metrics like BMI, kidney function, and fitness measurements directly in the browser.
11 visitors·8.6K impressions·28d
HealthcareFounder2026
Looksee Health App
Scan packaged food and cosmetic products to reveal what's really inside. Detailed ingredient breakdowns, health scores, and safety ratings to help you make smarter choices.
HealthcareFounder2026
MassageGo
On-demand massage platform connecting freelance masseurs with customers. Solved the industry's tech gap with programmatic SEO for organic growth.
862 visitors·27K impressions·28d
WellnessFounder2026
Island Seeker
AI-powered business directory for Guam. Personalized recommendations, real-time insights, and curated local knowledge for residents and travelers.
212 visitors·41K impressions·28d
Local ServicesFounder2026
Teoraspace
SEO agency for AI search engines focused on AI discovery and distribution.
15 visitors·3.3K impressions·28d
AI & SEOFounder2026
AI & SEOFounder2026
Vietnam Legal Support
Legal support services for Vietnam. Helping individuals and businesses navigate Vietnamese law with clear, accessible guidance.
LegalFounder2026
Tools 1
- How I Added 13 Languages to My Next.js Site Without Wrecking SEO
- Coolify vs Vercel (2026): Real Cost Breakdown and What You Give Up
- My AI Coding Workflow in 2026: What I Actually Use and What I Skip
- Type-Safe Next.js App Router: Server Actions, Params, and Error Handling That Actually Scale
- Supabase Multi-Tenancy: Schema, RLS, JWT Claims, and Production Gotchas