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Jakub – Node.js, Typescript, React, experts in Lemon.io

Jakub

From Poland (GMT+2)

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Full-stack Web DeveloperMiddle-to-senior
Hire developer
8 years of commercial experience
AI
Beauty
E-commerce
E-learning
Edtech
Healthtech
Human resources
Open source
AI software
SaaS
Lemon.io stats
1
projects done
430
hours worked
1
offers now 🔥

Jakub – 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.

Main technologies
Node.js
7 years
Typescript
7 years
React
7 years
Next.js
6 years
Additional skills
Express.js
Heroku
MySQL
MongoDB
Jenkins
Docker
PostgreSQL
Prisma
Stripe API
Vercel
Nest.js
OpenAI
OpenAPI
AWS
Ready to start
ASAP
Direct hire
Potentially possible

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Experience Highlights

Creator, Lead Engineer
Nov 2023 - Ongoing10 months
Project Overview

A UI generator that accelerates frontend development by up to 30 times.

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Responsibilities:
  • 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.
Project Tech stack:
Remix
Typescript
OpenAI
OpenAPI
Tailwind CSS
AI
Stripe API
Web Workers
Founder and Lead Software Engineer
Dec 2020 - Ongoing3 years 9 months
Project Overview

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.

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Responsibilities:
  • 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.
Project Tech stack:
Next.js
Apollo GraphQL
Apollo Client
Nest.js
Prisma
Typescript
Docker
Docker Compose
Stripe API
OpenAI
OpenAPI
Monorepo
AWS
Vercel
Tech lead & Engineer
Oct 2023 - Dec 20232 months
Project Overview

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

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Responsibilities:
  • 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.
Project Tech stack:
Next.js
Tailwind CSS
Stripe API
Front-end Developer
May 2020 - Jun 20211 year
Project Overview

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

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Responsibilities:
  • 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.
Project Tech stack:
React
Typescript
SCSS
Sentry
Datadog
MobX
Stripe API
Jest
Cypress
Lead Tech Engineer
Feb 2020 - Jun 20204 months
Project Overview

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

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Responsibilities:
  • 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.
Project Tech stack:
React Hooks
React
Typescript
SCSS
Laravel
API
Co-founder and Lead Engineer
Oct 2019 - Jan 20203 months
Project Overview

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

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Responsibilities:
  • 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.
Project Tech stack:
Next.js
Typescript
Nest.js
TypeORM
Styled-components

Languages

English
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