Patryk – Typescript, Python, React

An AI-driven Phase for an Environmental Site Assessment report automation.

• Converted the copilot's proof-of-concept into a production application;
• Re-architected the React codebase, introduced React Query caching and React Hook Form + Zod validation, and split a monolithic UI into a maintainable component structure.
• Shipped full-stack features (authentication, API error handling, data filtering, generated-content management, site questionnaire) in React / Python / FastAPI, improving initial load time by ~45% and cutting redundant API calls by ~20%.

A large-scale apartment-rental platform company based in Norway. The company provides a digital platform that applies Artificial Intelligence (AI) and Business Orchestration and Automation Technologies (BOAT) to the residential real estate market.

• Led frontend for the leads feature of an apartment-rental platform (Next.js, React, TypeScript, Shadcn)
• Utilized an AI-assisted workflow: authored agent rules and reusable core components for Claude Code, and integrated MCP to convert Figma designs into code via automated screenshot-versus-design iteration.
• Cut design-to-code turnaround by ~60% and shipped complex multi-step forms in half the estimated time.

A cross-platform AI Assistant app for property management and a vendor search platform designed to act as a free home assistant. The platform simplifies the process of finding and hiring service providers for residential maintenance and improvement projects.

• Led the frontend of a cross-platform AI assistant for property management.
• Built backend features in NestJS (TypeScript) and FastAPI (Python)
• Integrated AI features for auto-answering emails and processing documents, handling 200+ documents per week.

A fintech platform designed to act as a "401(k) for homeownership," specifically targeting first-time homebuyers to help them save for a down payment. The app combines high-yield savings, deposit-matching rewards, and home-buying guidance to accelerate the purchase process.

• Led the complete UI redesign of a fintech app for first-time homebuyers (React)
• Built a reusable UI component library that cut feature-delivery time by ~35%
• Re-architected the codebase
• Mentored 2 junior developers and ran thorough code reviews
• Partnered with the Product Designer to resolve edge cases before implementation.

An app for large-scale marketing capaigns management powered by AI.

• Built Python / Django applications managing large-scale marketing campaigns across 20M+ data points.
• Founded and led an internal UI component library adopted across 12+ projects, standardizing frontend delivery firm-wide.
• Led development of a data-heavy React application and integrated AI/LLM features to generate marketing materials (slogans, images, email templates), reducing content-production time for campaign teams by ~90%.

A highly vetted freelance network that connects businesses with the top 3% of freelance talent globally. The cooperation involved contributions to various full-stack projects.

• Delivered projects across the stack as a contractor.
• Modernized CI/CD and developer tooling for a fintech identity-protection company (Bash, Node.js, TypeScript), reducing build times and manual release steps.
• Built a React Native app for cycling meet-ups.
• Additional work completed: REST APIs (Node.js, Firebase), a React UI for teaching a custom Jira-workflow scripting language, and the UFC Performance Institute landing page (Webflow, JavaScript).

A leading global live marketing and event infrastructure company headquartered in Basel, Switzerland.

• Led the frontend of a multi-tenant Vue platform for managing art fairs and galleries.
• Architected a shared UI component library and crafted the micro-interactions and UI polish that defined the product's design quality across tenants.