Declining Price Token Sales with Anchor - Building a Dutch Auction on Solana
After building a hello world, a price oracle, and a piggy bank, this exercise introduces the two concepts the piggy b...
Software Engineer.
20+ years building maintainable, high-performance products. Deep experience in Payments — now bringing that to Solana.
going onchain - open to opportunities
Side projects
Pic2Sticker
AI-powered sticker SaaS. Upload any photo, get a custom sticker. Full product with payments, AI pipeline, and automated marketing.
Divvy
Expense splitting app for groups. Clean UI, real-time balances, smart settlement suggestions.
Also on GitHub
anchor-dutch-auction
Declining price token sales with PDAs and SPL escrow
anchor-piggy-bank
Time-locked SOL savings program with Anchor
anchor-price-oracle
On-chain price oracle with ownership and access control
anchor-hello-world
Minimal first Anchor program for Solana
expo-solana-wallet
Cross-platform Solana wallet built with Expo
solana-faucet
Solana faucet with Phantom and Solflare wallet support
trust_chain
Decentralized app for real-world asset verification on Solana
acts_as_togglable
Named bang toggle methods for ActiveRecord booleans
Tech stack
Ruby on Rails
20 years building and shipping production web applications.
Solana / Anchor
Building on-chain programs and smart contracts on Solana.
Rust
Systems programming for smart contracts and performance-critical applications.
React / TypeScript
Frontend development for web3 dApps and modern web applications.
AI / LLM Integration
Building autonomous agents that automate reports, marketing, and continuous development.
DevOps
Infrastructure, deployments, databases, and monitoring.
Learning in public
Time-Locked SOL Savings with Anchor - Building a Piggy Bank on Solana
After building a hello world and a price oracle, this exercise brings together several Solana concepts: time-based lo...
Building a Price Oracle on Solana with Anchor
After building a Hello World program, the next step is managing real state on-chain. A price oracle is a great exerci...
About me
Hey, I'm Jose. I've been building web applications for 20 years, most of them with Ruby on Rails.
Right now I'm pivoting into Solana and blockchain development, writing Anchor programs, and documenting everything I learn along the way.
I also run Pic2Sticker, an AI-powered sticker SaaS I built from scratch.
Based in Bangkok.
Get in touch
Open to remote Solana or Rails positions.
Based in Bangkok.