SEY Solutions
Software that solves real problems.
iOS apps, web platforms, and automation systems built by Jack Dempsey. An electrical apprentice who taught himself to code.
Things I've built and shipped.
Trades tools, finance apps, automation systems, and whatever's next.
FlagshipSparkyToolkit
Professional iOS field companion for Australian electricians
Professional iOS field companion for Australian electricians. 27+ AS/NZS-compliant calculators, test records, 885-page standards reference, and an AI assistant. Live on the App Store.
Melt
Debt Payoff Planner
Debt payoff planner for Australians. Snowball and avalanche strategies, month-by-month plans, and interest savings visualised. Offline, no accounts, AUD-first, free.
ElecCalc.au
Free Australian Electrical Calculators
25 free electrical calculators built for Australian electricians. Cable sizing, voltage drop, maximum demand and more. Works offline, no login required.
Smart Batch
eProfiling Card Filler Chrome Extension
A Chrome extension that automates eProfiling for Australian electrical apprentices. Scans progress, identifies gaps, optimises card generation with a greedy algorithm, and batch submits in seconds.
Apprentice turned
indie builder.
I'm a 4th year electrical apprentice working on commercial and industrial sites across South Australia. The tools we use at work are outdated, so I taught myself to code and started building better ones.
That side project became SparkyToolkit. Then I built a stock management system. Then a debt payoff planner. Then a subscription tracker. Turns out, once you start solving problems with software, you see them everywhere.
I'm not limited to one industry. I build whatever needs building, and I share most of it for free. SEY Solutions is named after the last three letters of Dempsey. A personal brand for a simple mission: ship useful software.
Got an idea? Let's chat.
Whether it's an app, a workflow tool, or something you can't quite describe yet, I'd like to hear about it. Or just say hi.