Proof of work ✦

Projects

Systems designed and shipped. Every entry includes the problem, architecture decisions, and what I'd do differently.

codenames where NDAs apply

  • Wallet & custody

    NCW, Fireblocks, BitGo, ERC-4337

  • Chains & infrastructure

    OP Stack, Fabric, custom EVM, bridge systems

  • AI systems

    Agent workflows, local LLMs, ranking and orchestration

The through-lines

Wallet systems

Project Atlas, Project Harbor, Project Orbit, Project Scales

A through-line across non-custodial wallets, custody choices, key-management UX, and production transaction orchestration.

Infrastructure

DocTrace, Project Ember, CredSeal, Keystone Bridge, Canopy Chain

L2 operations, Fabric architectures, cross-chain verification, and the trade-offs behind custom or specialised blockchain infrastructure.

AI delivery

StayWise, Project Beacon, Project Enclave, Project Herald

Applied AI systems focused on ranking, retrieval, orchestration, and practical workflow leverage instead of generic demo-layer novelty.

All work

Full project archive across delivery contexts.

20 projects in view

  • Jun 2023

    a favourite ✦

    DocTrace — File-less Records on Hyperledger Fabric

    SoluLab · Tech Lead | Senior Blockchain Developer

    Hyperledger Fabric

    Record-issuing platform for an Austin records company. Certificates, licences and permits live as structured data on a permissioned Fabric network, so anyone can verify one without calling the issuer.

    what shipped

    • DocTrace became an authorised Texas DIR vendor and won a CIO Review award
    • Anyone can verify a record without an account and without contacting the issuer
    Case study: DocTrace — File-less Records on Hyperledger Fabric ↗
    • Hyperledger Fabric
    • Go (Chaincode)
    • Fabric CA
    • CouchDB
    • IPFS
    • Node.js
    • MongoDB
    • React

  • Jan 2026

    Project Herald — AI Social Media Post Agent

    Tech Alchemy · Blockchain | Technical Architect

    Autonomous agent that monitors industry trends, messages the founder on Telegram for approval, drafts LinkedIn posts in the founder's voice, and publishes on confirmation. Built with Claude API.

    what shipped

    • Founder went from 0 to 3-4 posts/week without spending time on drafting
    • Approval rate: ~60% approve on first draft, ~30% after one edit, ~10% skip
    • Python
    • Claude API
    • Telegram Bot API
    • LinkedIn API
    • LangChain

  • Jan 2026

    Project Scales — Custody Platform Evaluation (Fireblocks vs BitGo)

    Tech Alchemy · Blockchain | Technical Architect

    Ethereum, Bitcoin, Polygon

    Real cost analysis and architecture comparison for a multi-asset presale platform. BitGo at $23K/yr vs Fireblocks at $52K/yr — what the numbers don't tell you.

    • Fireblocks SDK
    • BitGo SDK
    • Node.js
    • PostgreSQL

  • Dec 2025

    Project Beacon — AI Mentoring Platform

    Tech Alchemy · Blockchain | Technical Architect

    AI-enhanced mentoring platform for guided matching, mentor workflows, and internal knowledge capture. Built as a multi-service product with NestJS, Angular, and Python-based AI services.

    what shipped

    • Matching became explainable instead of opaque
    • Mentor operations stayed manageable as the catalogue expanded
    • NestJS
    • Nx Monorepo
    • Angular
    • Python (Flask)
    • PostgreSQL
    • Claude API

  • Nov 2025

    Project Coffer — Upgradeable Token Vault (V1 & V2)

    Tech Alchemy · Blockchain | Technical Architect

    Ethereum mainnet, Base

    Upgradeable smart contract system deployed on Ethereum mainnet and Base chain. Proxy pattern with Admin, Proxy, and Implementation components.

    what shipped

    • V1 deployed: 5,038,195 total gas
    • V2 deployed: 5,057,173 total gas (new features added cleanly)
    • Solidity
    • Hardhat
    • OpenZeppelin
    • ethers.js

  • Nov 2025

    StayWise — AI Hotel Recommendation API

    Personal · Independent build

    REST API for intelligent hotel matching: budget, location, amenities, rating, and availability. NestJS + MongoDB with full Swagger documentation and Docker deployment.

    what shipped

    • API returns relevant results for free-text queries without pre-defined keyword matching
    • p95 query latency: ~800ms (structured MongoDB query ~50ms, LLM passes ~750ms)
    • NestJS
    • TypeScript
    • MongoDB
    • Docker
    • Swagger
    • Claude API

  • Oct 2025

    CredSeal — Blockchain Credential Verification

    Personal · Independent build

    Hyperledger Fabric v2.4+

    Credential verification system on Hyperledger Fabric. Hashes academic and professional documents on-chain without storing raw data outside client infrastructure — built for government-grade data sovereignty.

    what shipped

    • Chaincode handles 500+ credential operations/minute on a 3-peer test network
    • Revocation is non-destructive — full audit trail preserved
    • Hyperledger Fabric
    • Go (Chaincode)
    • AWS EKS
    • MongoDB
    • CouchDB
    • Node.js

  • Aug 2025

    Keystone Bridge — Fabric–Polygon Cross-Chain Credentials

    Personal · Independent build

    Hyperledger Fabric + Polygon Amoy

    Commit-reveal pattern bridging Hyperledger Fabric (private) and Polygon Amoy (public) for academic credential verification. Anchors private-chain state to a public blockchain without exposing raw data.

    what shipped

    • End-to-end verification flow working on Fabric v2.4 + Polygon Amoy
    • Full implementation documented as a Gist (see project link)
    • Go (Chaincode)
    • Solidity
    • JavaScript SDK
    • Truffle
    • Polygon
    • Hyperledger Fabric

  • Jul 2025

    Project Enclave — 100% Offline Document Q&A

    Tech Alchemy · Blockchain | Technical Architect

    Local LLM pipeline for querying documents without any internet connection. GPT4All + LlamaCpp + Chroma vector DB. No data leaves the machine — built for sensitive enterprise and legal document use cases.

    • Python
    • GPT4All
    • LlamaCpp
    • Chroma (Vector DB)
    • LangChain
    • Sentence Transformers

  • Jun 2025

    Project Forge — Product System & Delivery Architecture

    Tech Alchemy · Blockchain | Technical Architect

    End-to-end product architecture work spanning flows, sequence diagrams, product documents, epics, and system framing before delivery. A leadership-heavy example of technical planning before execution.

    what shipped

    • Better alignment between product and technical planning
    • Fewer hidden dependencies discovered mid-sprint
    • Product Docs
    • Sequence Diagrams
    • Confluence
    • Architecture Planning
    • Delivery Design

  • May 2025

    Project Relay — Multi-Restaurant Marketplace

    Tech Alchemy · Blockchain | Technical Architect

    Marketplace platform spanning admin operations, customer ordering, delivery workflows, and backend coordination. A multi-surface product with strong operational complexity.

    what shipped

    • Better operational control across marketplace roles
    • Cleaner separation between role-specific UI and shared order logic
    • Admin Panel
    • User App
    • Delivery App
    • Node.js
    • Marketplace Backend

  • Mar 2025

    Sentinel Audit — Token, Staking & Vesting Contracts

    Personal · Independent build

    Ethereum

    Security and logic review of three production-bound upgradeable contracts: ERC-20 token, staking platform, and vesting schedule. Caught four critical issues before mainnet deployment.

    what shipped

    • 4 critical issues remediated before mainnet deployment
    • Contracts redeployed with fixes; second audit confirmed clean
    • Solidity
    • OpenZeppelin UUPS
    • Hardhat
    • ethers.js
    • Slither
    • Mythril

  • Feb 2025

    Project Harbor — Fireblocks Embedded Wallet

    Tech Alchemy · Blockchain | Technical Architect

    Ethereum, Base, Polygon

    Production non-custodial wallet built on Fireblocks NCW with backend orchestration, transaction policy handling, and a cleaner UX for key-management-heavy flows.

    what shipped

    • Wallet onboarding time reduced once recovery and enrolment flows were collapsed into fewer steps
    • Signing reliability improved after moving transaction-state handling away from optimistic UI assumptions
    • Fireblocks NCW
    • Node.js
    • TypeScript
    • MongoDB
    • Web3 Provider

  • Dec 2024

    Project Vector — Presale & DApps Platform

    Tech Alchemy · Blockchain | Technical Architect

    Ethereum, Base, EVM

    Web3 presale and DApps platform built for a broader wallet ecosystem, combining frontend DApps, backend CRM-style services, and token-sale delivery flows.

    what shipped

    • Product and operations teams had better visibility into live sale flows
    • User-facing experiences stayed cleaner because support-heavy logic was moved out of the frontend
    • Angular
    • Node.js
    • CRM Backend
    • DApps
    • Token Sale Flows

  • Nov 2024

    Project Orbit — Presale, CRM & DApps

    Tech Alchemy · Blockchain | Technical Architect

    Ethereum, Base, BNB Chain

    Multi-surface Web3 platform spanning DApps, presale infrastructure, CRM backend, and wallet-linked user flows. Built for a live product ecosystem rather than a single isolated feature.

    what shipped

    • Faster iteration across multiple business surfaces without duplicating core logic
    • Better operational visibility into wallet-linked user journeys
    • Angular
    • Node.js
    • NestJS
    • MongoDB
    • Solidity
    • Rubic

  • Oct 2024

    Project Pulse — Move-to-Earn Fitness Platform

    Tech Alchemy · Blockchain | Technical Architect

    Ethereum, Layer 2

    Web3 fitness platform combining token mechanics, NFTs, and user engagement loops. Built around move-to-earn and player-economy interactions under production delivery pressure.

    what shipped

    • Product incentives stayed coupled to auditable on-chain primitives
    • Iteration remained possible without redeploying every product change into smart contracts
    • Solidity
    • NFTs
    • Token Mechanics
    • Node.js
    • Web3 Product Delivery

  • Sep 2024

    Project Atlas — Multi-Chain Non-Custodial Wallet

    Tech Alchemy · Blockchain | Technical Architect

    Bitcoin, Ethereum, EVM chains

    Production non-custodial wallet platform supporting Bitcoin (BDK/UTXO), Ethereum, and EVM chains. Flutter frontend, Django backend, encrypted WebSocket sync, and CloudFront-backed delivery.

    what shipped

    • Multi-chain wallet supporting BTC, ETH, and major EVM networks
    • Bitcoin UTXO selection optimised for fee efficiency
    • Flutter (Dart)
    • Django
    • Python
    • Bitcoin Dev Kit (BDK)
    • Noise Protocol
    • WebSocket
    • AWS CloudFront
    • MongoDB

  • Aug 2024

    Project Ember — OP Stack L2 + Bridge

    Tech Alchemy · Blockchain | Technical Architect

    OP Stack (Ethereum L2)

    Production Layer 2 chain built on OP Stack for a high-volume token ecosystem. Includes L1/L2 bridge, backend oracle, and staking contracts for a live launch environment.

    • OP Stack
    • Solidity
    • Node.js
    • Smart Contracts
    • L1/L2 Bridge
    • Oracle

  • Jun 2024

    Canopy Chain — Custom EVM Blockchain

    Personal · Independent build

    Custom EVM (Go Ethereum fork)

    Fork of Go Ethereum with a custom 'Forest' consensus algorithm. Built to be marketed as one of the fastest EVM-compatible blockchains. Full node implementation in Go with Docker-based deployment.

    what shipped

    • Functional custom blockchain node with 2-second block times
    • Full EVM compatibility verified — Hardhat, Remix, MetaMask all work
    • Go
    • Go Ethereum (geth)
    • Docker
    • EVM
    • Custom Consensus

  • Apr 2024

    Project Ignite — IDO Platform & Payment Flow

    Tech Alchemy · Blockchain | Technical Architect

    Ethereum, BNB Chain

    IDO platform with token-sale contracts, admin operations, and Stripe-connected off-chain payment flows. Combined smart contracts with a business-friendly operator layer.

    what shipped

    • Operators could manage sale configuration without touching contracts directly
    • Payment exceptions became observable instead of buried in support tickets
    • Solidity
    • Node.js
    • Admin Frontend
    • Stripe
    • MongoDB

Client delivery, as proof

16 platforms I worked on at SoluLab as Tech Lead and Senior Blockchain Developer, written up by SoluLab: enterprise Fabric, wallets, DeFi, NFT marketplaces, tokenisation, gaming and supply chain.