Selected product work & experiments

AI-assisted product prototype and concept documentation for a Brazilian toll payment app aimed at unifying fragmented highway concessionaire payment experiences into one mobile application. Defined business concept, user flows, functional requirements and high-level app architecture to support partner discussions with concessionaires and payment providers.

Independent marketplace product work exploring how short-term rental hosts can improve direct bookings, identify calendar gaps and turn public listing data into actionable recommendations. Hands-on learning in marketplace positioning, booking funnels, AI-assisted audits and go-to-market validation — not positioned as a full-time startup.

A set of structured prompts and AI roles used for product documentation, PRD drafting, UX review and architecture thinking. Created as a practical support system for specification-driven product work.

Concept for a recruiter-facing portfolio assistant based on structured CV and case study content. The goal is to make professional experience easier to explore through questions, not to replace human evaluation.

Internal prospecting tool for finding cabin rental owners and booking discovery calls. URL scraping, lead management, email sending with tracking, and follow-ups.

Experimental AI-powered content creation workflow: from topic research, through brief, draft, to publication and distribution. Designed for solo creators and small businesses.

Public repository containing PRD templates, decision logs, product documentation fragments, AI agent instructions, and design system notes. Built iteratively as a byproduct of real product work.

Concept for a simple web tool and open-source utility to convert corporate documentation to Markdown — a format better suited for AI and RAG systems.

Personal project organizing career development, reputation building, and off-job asset creation. Includes content experiments, newsletter, and long-term thinking about professional independence.

Subscription-based bathroom cleaning service for the Polish market. Customers subscribe to 2–4 monthly visits; cleaners monitor and restock supplies.

Premium auto detailing subscription service for the Polish market. Subscription-based car detailing with professional service.

Task management app designed for ADHD. Kanban (WAITING → READY → DOING → DONE), daily Impact and Stabilizer tasks, WIP limits, impact/effort scoring.

Concept for a subscription plant startup combining physical products (plants, pots, fertilizers) with education and a mobile app. Includes B2C/B2B model, crowdfunding strategy, and risk map.

Concept for an eco-friendly courier service based on rail transport. Prepared landing page, offer structure, and MVP concept. Served as an exercise in problem validation and value communication.

Concept for a premium street-food chain (hot dogs) with a strong product differentiator (signature sauces) and a well-thought-out franchise model. Work on brand, team model, and operational culture.

Product insight from user feedback — a meal and shopping planner that accounts for variable child pickiness. Project stopped at problem discovery and market signal analysis.

Concept for a product podcast based on real decisions, failures, and behind-the-scenes of product work — without corporate narratives. At the idea and format stage.