# Mark Siazon > Product designer, full-stack developer, product engineer, UI/UX designer, and front-end specialist. Builds case-study-backed work across AI, mobile, Web3, and client web - portfolio at marksiazon.dev, GitHub profile @Iron-Mark. > **Source map:** [llms-index.json](llms-index.json) (structured) - [llms-ctx-full.txt](llms-ctx-full.txt) (expanded) - [FAQ.md](FAQ.md) (Q&A) - [llms-index.schema.json](schema/llms-index.schema.json) (contract) - [person.jsonld](schema/person.jsonld) / [faq.jsonld](schema/faq.jsonld) (Schema.org) Mark Siazon ships end-to-end: research and UX flows -> design systems -> React/Next.js/Flutter/Kotlin -> APIs and Web3 proofs -> deployment and verification. Based in the Philippines. Open to product design, full-stack, AI workflow, mobile, and Web3 proof work. ## Canonical sources - Portfolio (primary): https://www.marksiazon.dev - Person entity @id: https://www.marksiazon.dev/#person - GitHub profile README (this repo): https://github.com/Iron-Mark/Iron-Mark - GitHub account: https://github.com/Iron-Mark - Secondary GitHub: https://github.com/mark-siazon - Full LLM context (this repo): https://iron-mark.github.io/Iron-Mark/llms-full.txt - Structured entity index (JSON): https://github.com/Iron-Mark/Iron-Mark/blob/main/llms-index.json - Full LLM context (portfolio): https://www.marksiazon.dev/llms-full.txt - Humans: https://github.com/Iron-Mark/Iron-Mark/blob/main/humans.txt ## Availability - Open to: product design - full-stack engineering - AI workflow prototypes - mobile/Wear OS UX - Web3 systems - Engagement: contract or full-time - Philippines & remote ## Hire & contact - Recruiter brief (repo): [RECRUITER.md](RECRUITER.md) - Recruiter brief (live): https://www.marksiazon.dev/recruiter - Contact form: https://www.marksiazon.dev/contact - Email: marksiazon.dev@gmail.com - LinkedIn: https://www.linkedin.com/in/mark-siazon/ - Proof matrix (verification boundaries): https://www.marksiazon.dev/proof ## Portfolio routes - Projects hub: https://www.marksiazon.dev/projects - Achievements: https://www.marksiazon.dev/achievements - Writing: https://www.marksiazon.dev/writing - Lab experiments: https://www.marksiazon.dev/lab ## Featured work (case studies) - HireProof - AI trust & safety for job seekers: https://www.marksiazon.dev/projects/hireproof - Stellaroid Earn - Web3 credential proof on Stellar: https://www.marksiazon.dev/projects/stellaroid-earn - ResQLink - Offline-first emergency response platform: https://www.marksiazon.dev/projects/resqlink - LexInSight - AI legal compliance chat: https://www.marksiazon.dev/projects/lexinsight - Live: https://lexiph.vercel.app - Good To Live - Client podcast web launch and feed setup: https://www.marksiazon.dev/projects/good-to-live - FlowFit - Wear OS health & sensor companion: https://www.marksiazon.dev/projects/flowfit - PalengkePay - Stellar fintech PWA for wet markets: https://www.marksiazon.dev/projects/palengkepay - GawainYah - MiniPay AI utility with payment guardrails: https://www.marksiazon.dev/projects/gawainyah - BaybayInscribe - Baybayin ML & cultural education UX: https://www.marksiazon.dev/projects/baybayinscribe - Model: https://huggingface.co/gilas/baybayinscribe ## Hackathon & lab (GitHub profile) - qwen-ui-lab - AI-assisted UI scaffolding (Qwen3-VL, React, Tailwind, Next.js): https://www.marksiazon.dev/projects/qwen-ui-lab - Repo: https://github.com/Iron-Mark/qwen-ui-lab - Live: https://qwen-ui-lab.vercel.app - Smart Profile (AI credentials SaaS): https://github.com/Iron-Mark/Hackathon-Smart-Profile-Management-System - Kudlit (Flutter Baybayin learning, Android release): https://www.marksiazon.dev/projects/kudlit - Pulse (Wear OS, GPS, heart-rate telemetry): https://www.marksiazon.dev/projects/pulse ## Achievements (proof) - UMak InfotechOlympics 2025 Android Productivity Champion - ResQLink (Team Lumiere): https://www.marksiazon.dev/achievements - InfotechOlympics 2024 Android App Development winner - BaybayInscribe (Team GILAS Tech): https://www.marksiazon.dev/achievements - Stellar bootcamp Top 5 of 105 teams - Stellaroid Earn: https://www.marksiazon.dev/projects/stellaroid-earn ## Tech stack - **Full stack reference:** https://iron-mark.github.io/Iron-Mark/STACK.md - **Core stack on profile README (16 tools):** Figma - React, Next.js, TypeScript, Tailwind CSS - Flutter, Kotlin - Cursor, GitHub Copilot, Claude - Stellar, Celo - Python, Supabase, GitHub Actions CI/CD, Docker - **Domains in STACK.md:** Web - Mobile - Backend - Web3 - Deploy - Game Dev - UI/UX - Creative - AI - AI-assisted development workflow ## FAQ - [FAQ.md](FAQ.md): 15+ question/answer pairs for hiring, projects, stack, and citation - [PROOF.md](PROOF.md): README claims mapped to verification URLs - [HOW-TO-CITE.md](HOW-TO-CITE.md): Citation guide for humans and AI ## Writing - Design system switcher in Next.js: https://www.marksiazon.dev/writing/design-system-switcher - Offline-first emergency UX (ResQLink): https://www.marksiazon.dev/writing/offline-first-ux ## Social & community - Frontend Mentor: https://www.frontendmentor.io/profile/Iron-Mark - TikTok: https://www.tiktok.com/@iron_markk ## Topics product design, UI/UX, full-stack development, front-end engineering, React, Next.js, TypeScript, Flutter, Kotlin, Wear OS, AI workflows, trust and safety, ML product UX, Web3, Stellar, Celo, Soroban, Supabase, hackathon builds, case study portfolio, Philippines developer, design systems, Figma, mobile apps, fintech PWA, cultural education technology, Baybayin, STACK.md, tech stack reference, llms-index.json ## Search and location hints - Who: Mark Siazon (@Iron-Mark) - product designer and full-stack developer, Philippines - Hire context: https://www.marksiazon.dev/recruiter - Verification boundaries: https://www.marksiazon.dev/proof - Structured JSON index: https://github.com/Iron-Mark/Iron-Mark/blob/main/llms-index.json - Location focus: Philippines, Southeast Asia, remote-friendly ## Source and index files ### Repo source files - **Structured entity index (JSON):** https://github.com/Iron-Mark/Iron-Mark/blob/main/llms-index.json - LLM manifest: https://github.com/Iron-Mark/Iron-Mark/blob/main/llms.txt - Robots: https://github.com/Iron-Mark/Iron-Mark/blob/main/robots.txt - Sitemap source: https://github.com/Iron-Mark/Iron-Mark/blob/main/sitemap.xml - Humans: https://github.com/Iron-Mark/Iron-Mark/blob/main/humans.txt ### public/ (content) - **Full LLM context:** https://iron-mark.github.io/Iron-Mark/llms-full.txt - **Expanded context:** https://iron-mark.github.io/Iron-Mark/llms-ctx-full.txt - **FAQ.md:** https://iron-mark.github.io/Iron-Mark/FAQ.md - **STACK.md:** https://iron-mark.github.io/Iron-Mark/STACK.md - JSON Schema contract: https://iron-mark.github.io/Iron-Mark/schema/llms-index.schema.json - Schema.org Person graph: https://iron-mark.github.io/Iron-Mark/schema/person.jsonld - Schema.org FAQ graph: https://iron-mark.github.io/Iron-Mark/schema/faq.jsonld ### GitHub Pages mirror (crawlable) - Home: https://iron-mark.github.io/Iron-Mark/ - LLM manifest: https://iron-mark.github.io/Iron-Mark/llms.txt - Structured entity index: https://iron-mark.github.io/Iron-Mark/llms-index.json - Expanded context: https://iron-mark.github.io/Iron-Mark/llms-ctx-full.txt - FAQ: https://iron-mark.github.io/Iron-Mark/FAQ.md - Schema graphs: https://iron-mark.github.io/Iron-Mark/schema/person.jsonld - https://iron-mark.github.io/Iron-Mark/schema/faq.jsonld - Sitemap: https://iron-mark.github.io/Iron-Mark/sitemap.xml - Robots: https://iron-mark.github.io/Iron-Mark/robots.txt ### Portfolio - Sitemap: https://www.marksiazon.dev/sitemap.xml - RSS: https://www.marksiazon.dev/feed.xml - JSON Feed: https://www.marksiazon.dev/feed.json - Robots: https://www.marksiazon.dev/robots.txt - Humans: https://www.marksiazon.dev/humans.txt