
Jakub
From Poland (UTC+2)
8 years of commercial experience
Lemon.io stats
1
projects done430
hours workedJakub – Node.js, Typescript, React
Jakub is a full-stack developer with extensive experience working with Node.js, React.js, Typescript, and Next.js. He has up-to-date knowledge of technologies, a positive attitude, and the skill to ask the right questions, making him a valuable developer for any project. Jakub has extensive experience in the Fintech domain and is ready to work in healthtech, education, or gaming. With a strong passion for education and technology, he has led a variety of international projects and mentored interns and junior developers.
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Let’s get started today!Experience Highlights
Creator, Lead Engineer
A UI generator that accelerates frontend 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.
Founder and Lead Software Engineer
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.
Tech lead & Engineer
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.
Front-end Developer
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.
Lead Tech Engineer
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.
Co-founder and Lead Engineer
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.