Jakub – Node.js, Typescript, React

An AI-powered platform that facilitates learning software development in an environment resembling real-world work settings. As the first platform of its kind, we have integrated AI code reviews on GitHub into the learning process. We have successfully taught over 1,000 developers.

• Developed and designed the entire platform from the ground up;
• The application received the "Best Project Award" at EduCamp, leading to an invitation to an acceleration program for Jakub;
• Integrated Stripe for recurring subscription management;
• Established GitHub integration to streamline development processes;
• Implemented Trello-style drag and drop functionality for enhanced user experience;
• Developed a GraphQL API as an intermediary for service communication;
• Created a simplified Continuous Integration (CI) process for automated deployments on Heroku;
• Designed and implemented a versatile, reusable design system;
• Skilled in debugging and hot fixing to ensure optimal platform performance;
• Collaborated closely with the product designer in a dynamic, agile workflow;
• Developed a Telegram bot to function as a straightforward Content Management System (CMS) for the platform;
• Undertook extensive refactoring of the codebase and maintained up-to-date dependencies;
• Created a shared TypeScript ecosystem across the entire project, encompassing both frontend and backend;
• Experienced in working with Single Page Applications (SPA) and Server-Side Rendering (SSR), and developed a hybrid system using Next.js tailored to the project's needs.

Jakub single-handedly built a self-learning AI platform that generates complete divorce document sets for Polish courts. The solution has already saved hundreds of assistant work hours that were previously spent on manual document creation. Now, the company can scale its remote divorce services without hiring additional staff.

• Designed and implemented the entire platform architecture (front-end, back-end, infrastructure);
• Integrated AI agents using OpenAI and LangChain for document generation workflows;
• Automated document creation based on complex legal scenarios and Polish court requirements;
• Built a Google Drive-based storage system for generated documents;
• Set up infrastructure on Google Cloud using Terraform and Vercel;
• Implemented authentication and access control for remote legal teams;
• Delivered a scalable solution that reduced manual workload and enabled business growth without extra hiring.

An AI Agent that autonomously finds new leads for a wood export company across Europe. The agent operates just like a human employee via email, with its own personality and communication style. It helps discover around 1,000 new leads daily, significantly boosting the sales funnel and increasing company revenue.

• Designed and developed an AI lead generation agent with human-like communication;
• Automated the B2B outreach process via email, including personalized messages and follow-ups;
• Integrated data sources to identify relevant European wood product buyers;
• Built a system that consistently delivers ~1,000 new leads daily;
• Helped the company scale lead generation without additional sales team hires;
• Monitored and iterated on AI behavior to maintain natural interaction and conversion rates.

A UI generator that accelerates front-end development by up to 30 times.

• Developed and successfully integrated GPT-4 Vision as part of the UI generation process;
• Enhanced speed and performance through the implementation of web workers;
• Built and launched a Minimum Viable Product (MVP) from scratch in just one month.

A video learning platform built from scratch using Next.js 14, which offers professional courses for UX/UI designers.

• Developed a full-stack architecture utilizing Next.js versions 13 and 14;
• Successfully delivered a functional Minimum Viable Product (MVP) within one month;
• Integrated Sanity as the Content Management System (CMS) and Stripe for payment processing.

It is a dashboard for ordering and managing wholesale custom packaging orders.

• Developed Single Page Applications (SPA);
• Integrated Stripe for payment processing;
• Worked on and integrated a backend API using Ruby on Rails;
• Collaborated with a team of developers;
• Developed a library of UI components;
• Conducted training sessions and mentored junior developers;
• Implemented Sentry for error tracking and monitoring.

It is a job board for IT. The main feature was to add new job posts by companies and apply to existing offers.

• Developed Single Page Applications (SPA);
• Integrated PayU for payment processing;
• Authored unit tests using Jest (react-testing-library);
• Worked on and expanded the PHP backend API;
• Collaborated with and managed a second front-end developer;
• Engaged with the client in an Agile development environment;
• Optimized application performance for better user experience;
• Implemented Sentry for error tracking and application monitoring.

It was a platform for ordering massage therapists at your doorsteps.

• Constructed a UI library to enhance maintenance and scalability;
• Designed both back-end and front-end architectures;
• Established a continuous integration pipeline for automating tests and deployments;
• Developed the back-end and front-end of the application within 3 months.