Case studies · 05

Five systems, five domains, one technical owner.

Every project has a full case study: problem, architecture, key decisions and verifiable numbers.

  1. 01 / 05· In production

    B2B SaaS · Pharma Procurement

    Haelias

    Solo CTO / Principal Engineer (with contributor support on UI) · 2022 – present

    Italian pharmacies handle procurement through phone calls, emails and faxes to multiple wholesalers, negotiate prices verbally and reconcile invoices by hand.

    • 5.5M+Live MongoDB documents
    • ~14kIn-stock cross-supplier products
    • 143Express endpoints (single `main.ts`)
    Read case study
  2. 02 / 05· Pre-launch

    DeFi + AI agent layer

    Mandate.Finance

    Founding Product Engineer & Technical Co-founder · 2026 – present

    Build a DeFi platform where autonomous AI agents manage real on-chain funds while preserving user self-custody, gasless UX and real-time oversight.

    • 11Components production-deployed
    • 5Weeks to ship
    • 1,300+Total commits
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  3. 03 / 05· Active

    Italian public sector · Cultural heritage · Blockchain data products

    Bando Ecomic Lotto 3 — MiC PNRR (DPaaS / DPass)

    Technical-functional lead on ArtCertify + blockchain Data Products (RTI Activa Digital + Civita Mostre) · 2025 – Jun 2026

    The Italian Ministry of Culture (Digital Library / ICDP) issued the Ecomic Lotto 3 'Advanced Fruition' tender (Dialogo Competitivo, D.Lgs.

    • 4Blockchain Data Products designed
    • 6Consuming pilot use cases
    • 3RTI application platforms
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  4. 04 / 05· Completed

    DeFi · Vault infrastructure · AI-native layer

    Factor

    Founding Engineer · Top contributor on Discover · 100% sole author on VaaS / Agent · 2023 – 2025

    Build the infrastructure for an end-to-end DeFi vault-as-a-service experience: ERC-4626 contracts with manager-adapter pattern, a typed SDK, two production UIs (power-user + depositor) and — from 2026 — an AI-native layer exposing vaults a…

    • 2023 – 2025Active period
    • ~140k LOCOwned codebases
    • 468 + 253Commits on Discover · Studio
    Read case study
  5. 05 / 05· Active

    AI-native tooling · Cursor companion · Local-first mobile

    DeckAgent

    Solo founder / full-stack product — daemon, PWA, Cursor extension, iOS + Watch app · 2026

    Agentic coding on Cursor is still desktop-bound: away from the Mac you lose visibility into running agents, plans, chats and repo files, and you cannot queue the next Composer prompt without opening the laptop.

    • Daemon · PWA · Extension · iOS · WatchProduct surfaces
    • TestFlightiPhone beta
    • andrea0x.deckagentExtension
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Coverage

Domains × projects

Which skill pillars each system touches.

  • Haelias
    • Traditional Software Engineering
    • Cloud & DevOps
    • IT Management & Digitalization
  • Mandate.Finance
    • Traditional Software Engineering
    • AI Engineering
    • Cloud & DevOps
    • Web3 / Blockchain
    • IT Management & Digitalization
    • Business Strategy
  • Bando Ecomic Lotto 3 — MiC PNRR (DPaaS / DPass)
    • AI Engineering
    • Web3 / Blockchain
    • IT Management & Digitalization
    • Business Strategy
  • Factor
    • Traditional Software Engineering
    • AI Engineering
    • Cloud & DevOps
    • Web3 / Blockchain
  • DeckAgent
    • Traditional Software Engineering
    • AI Engineering
    • Cloud & DevOps

Contact

What is the next move?

A 30-minute call to understand context, goals and constraints. No commitment.

hello@andrea0x.me · @andrea0x_eth

Selected Work · Andrea Ritondale