Work
Live products I’ve designed, built, and launched.
Personal finance, budgets & bank CSV import
SpendBeacon
A full-stack SaaS that turns bank CSV/Excel exports into clear spending insights. Free rules-based categorization; Premium AI maps unusual layouts, auto-categorizes merchants, and answers questions about your money.
Features
- CSV/Excel import for any bank (mBank, PKO BP, ING, and more)
- Rules-based and AI categorization with learning from corrections
- Safe-to-spend, budgets, subscription radar, and alerts
- AI finance coach with merchant-level reports
- Stripe subscriptions, JWT/OAuth auth, PWA, PL/EN i18n
Stack
Next.jsFastAPIPostgreSQLRedisCeleryGroq AIStripePWA

Schedule, notes, and lessons in one place
Lekcjo
A platform for tutors and their students — booking, online classroom, and materials together. Parents pick open slots, lessons happen with video, board, and notebook in one window, and homework lands where it belongs — not in a chat thread.
Features
- Scheduling with open slots parents can book
- Online lesson room: video, board, and notebook
- Lesson notes and homework shared with the student
- Built for solo tutors and small schools — no marketplace fees
- Clear pricing: Solo and School plans
Stack
Next.jsTypeScriptTailwind CSSReal-time classroomScheduling
Want something similar?
For a compact build that can fit evenings and weekends, send a short brief — I’ll say quickly whether I have capacity.