From Game Graphics to Platform Architecture.
Obsessively focused on making things fast, accurate, and visible on screen—first in real-time rendering, now in service architecture and operational reliability.
I started my career as a game developer, deeply immersed in graphics and shader engineering—obsessed with making what's on screen fast and pixel-perfect. As my focus expanded into web, app, and platform development, the performance instincts and structural discipline forged in real-time rendering became the foundation for everything I build today: service architecture, operational stability, and automation at scale.
Currently, I serve as CTO of Hypercape Inc., a global K-beauty distribution and fulfillment platform for Shopify sellers, brands, and creators—products ship globally from Korea. I architect Shopify-integrated dropshipping and fulfillment pipelines. I also run WeKlem Inc. as CEO, leading a cross-platform development studio specializing in web, app, and game engineering with patented technology.
I built the open-source Sneakoscope Codex (npm i -g sneakoscope), a trust layer for Codex CLI that coordinates bounded AI coding agents with machine-verifiable evidence. My path into platform architecture started in Unity game graphics and shaders.
I founded Mandarange (감귤오렌지) as a personal brand to share engineering insights, architectural patterns, and the philosophy of building systems that teams can understand, operate, and trust.
Philosophy in Practice
Ideas that guide the work
“At their core, developers now have to become planners. These days, I rarely write code myself. In the age of AI, what matters is not just 'What can you build?' but rather 'Can you define what should be built, and why?'”
“The essence of a developer isn't simply someone who codes, but more of an 'inventor'... those who set small hypotheses and consistently execute to create 'relatable fun and value' shine.”
“Do your absolute best within the given time, then put it out there and let people criticize you. This is my first principle—though it doesn't mean 'it's fine to be sloppy'.”
“AI doesn't get to say 'it's done'. To claim completion, you must provide a receipt. Fake mock data can never replace real execution evidence.”
Translated from Korean
“I started a company because 'I want to live doing what I want to do'. Gathering people who share the same dream and enabling them to do what they want to do—I will never forget this promise.”
“I want to build a world where kind people with dreams don't get crushed.”
“More than a prestigious school or degree, what matters to us is that person's intellectual honesty, attitude, persistence, and real problem-solving ability.”
How I Work
Philosophy in practice
Data IS the Product
SSOT is the top priority. Copies breed operational cost explosions. DB contradictions, circular refs, and ambiguous ownership are the most dangerous tech debt.
- Single Source of Truth for every domain concept
- Normalization eliminates contradictions, not for show
- Price, inventory, state—always ask “who is canonical?”
- Schema reviews before feature reviews
Operational Simplicity
Idempotent operations, transactional consistency, and clear state management. If an operation can fail halfway, it will. Design for it.
- Idempotency by default on every write path
- Transactional boundaries explicitly designed
- Retry-safe, crash-safe, restart-safe
- State machines over boolean flags
Security as Infrastructure
Not an afterthought bolted on later. Enforced at the DB and policy level. Audit trails, IP restrictions, admin tooling—manageable security for real-world ops.
- Row-level security and policy-level enforcement
- Audit trails on every mutation
- Admin tooling with IP restrictions and approval flows
- Secrets management as a first-class concern
Systems Beat Individuals
Dev Standards, PR/review routines, checklists, and decision records. Consistent systems always outperform individual heroics.
- Standards codified, not memorized
- PR templates and review checklists enforced
- ADRs for every non-trivial decision
- Onboarding measured in hours, not weeks
Documentation as Operational Tools
Not decoration. PRDs, playbooks, decision records, migration scenarios, and checklists. They recur because they work.
- Runbooks for every critical path
- Migration playbooks before every deploy
- Incident postmortems as learning infrastructure
- Living docs that evolve with the system
AI-Era Readiness
Documentation and structure must be machine-readable. AI doesn’t replace engineers—engineers who structure knowledge for AI access multiply their output.
- Machine-readable schemas and documentation
- AI-friendly code structure and naming
- Automated workflows that AI agents can extend
- Knowledge as a compounding competitive advantage
Domains
What I work with
Web / App
- Next.js / React (Redux Toolkit, perf patterns)
- Flutter / Dart (GetX, Flutter Web)
- Node.js / Python FastAPI
- Tailwind, VS Code extensions, FigJam plugins
- Cross-platform mobile (Android/iOS)
Backend / Platform / Data
- Java / Spring Boot / JPA
- Supabase / Postgres (RLS, PL/pgSQL)
- Redis (distributed locks)
- MySQL / SQLite / AWS
- Commerce & logistics systems
Game / Graphics
- Unity / C# (Addressables, Job System, ECS)
- URP / Photon PUN2
- Shader development
- Real-time rendering optimization
- Graphics pipeline engineering
AI Agents & Tooling
- Codex CLI / @openai/codex-sdk
- MCP (client and server SDKs)
- Cursor rules/commands, Claude Code skills
- OpenRouter, agent memory/context graphs
- Evidence-based AI development workflows
Timeline
Key milestones
Founded WeKlem Studio. Acquired certifications and filed initial patents.
Incorporated WeKlem as a corporation. Launched apps and games; exhibited at industry events.
Patent registered. Expanded WeKlem product portfolio.
Joined Hypercape Inc. as CTO to architect K-beauty commerce infrastructure.
Operating K-beauty commerce platform at Hypercape and cross-platform dev business at WeKlem.
Want to build something together?
Architecture reviews, technical consulting, or a new venture—I'm always open to interesting conversations.
Get in Touch