John Barbagallo
Taking contract work Print career record

04 case studies · 2022 – 2026

Case studies

Each one with its evidence: real captures where I have them, numbers only with their source, and the limits stated on the page. The record has the dates.

  1. SplitForge tools index listing 27 privacy-first CSV and Excel tools

    01Founder, sole developer · 2025 – present

    SplitForge

    Twenty-seven tools. Zero uploads.

    Twenty-seven CSV and Excel tools that run entirely in the browser. The file never leaves the machine, because there is nothing for it to leave to.

    • TypeScript
    • React / Next.js
    • Web Workers
    • Streams API

    Browser application Live

  2. WARSPUR storefront home: rooster crest, the line Raise the standard, and the notice that the first drop is forging now

    02Founder, builder · 2026 – present

    WARSPUR

    A store one person can run.

    An apparel brand needed a storefront one person could build, own and keep running. It is a WordPress and WooCommerce store with Elementor on the merchandising pages, live with its first drop.

    • WordPress
    • WooCommerce
    • Elementor
    • PHP

    E-commerce Live

  3. 03Webmaster, sole owner of the stack · 2022 – 2025

    National treatment network

    One person, thirty-plus sites.

    A national treatment network that lived on phone calls, with a growing set of WordPress sites carrying paid traffic and nobody who owned the whole stack. I took it on end to end and ran it alone for three and a half years.

    • WordPress
    • PHP / MySQL
    • Linux
    • Plesk
    • Salesforce
    • CallTrackingMetrics
    • DNS / SSL

    Web operations Anonymised · client clearance pending

  4. Trade Review Lab overview on a synthetic demonstration file: the latest trading day's gross, round trips and wins, the Overview tab, and the reconciliation block reading reconciled with eight checks listed

    04Designer, sole developer · 2026 – present

    Trading Cockpit

    Every figure traced to a fill.

    A private, single-user trading-analytics app for one futures day trader: broker export in, round trips rebuilt by first-in first-out pairing, every analytic withheld until the file reconciles to itself. Advisory only. It never executes a trade.

    • React 19
    • Vite
    • Firebase Auth / Firestore / Functions
    • IndexedDB
    • vitest

    Trading analytics Private deployment · synthetic data shown

Business services, website care and managed call intake run through Barbagallo Digital. That is a business, not a case study; the record has its dates.