Mateusz Juszczyk
Verified Expert in Engineering
Full-stack Developer
Rzeszow, Poland
Toptal member since September 28, 2022
Mateusz is a full-stack developer specializing in SSR (Nuxt.js, Next.js) and back-end frameworks such as Nest.js. He built an aviation flight planning tool that supervises flights, led a team that developed an app enabling the purchase of hexagon-shaped parts of the earth as NFTs, and spearheaded the synchronization process of over two million products. Mateusz is known for his ability to spot aspiring patterns and frameworks, is a Mensa member, and enjoys tackling interesting projects.
Portfolio
Experience
- Node.js - 5 years
- Vue 2 - 4 years
- React - 4 years
- Next.js - 3 years
- Tailwind CSS - 2 years
- NestJS - 2 years
- TypeScript - 2 years
- Unit Testing - 1 year
Availability
Preferred Environment
Windows, Linux, Discord, JavaScript, Amazon Web Services (AWS)
The most amazing...
...app I've built allows you to print gifs that continue to animate after printing. The app also allows visitors to add new content.
Work Experience
Full-stack Developer
Classified
- Integrated the application with an external API that allowed users to download photos for stored products from that API.
- Responded to bugs reported on Jira and found during manual regression testing.
- Increased code coverage by adding the unit and end-to-end tests.
- Suggested new features to implement that were later included in the application.
- Worked in agile environments such as scrum and scrum with Kanban.
Full-stack Developer
Self-employed
- Created an app for managing advertising billboards using Google Maps API and React.
- Led a team that developed an app that allows buying hexagon-shaped parts of the earth as non-fungible tokens (NFTs).
- Developed a website for claiming airdrop of a new cryptocurrency which required integration with a blockchain wallet.
- Led a team developing a store that allows claiming physical items for the owners of eligible NFTs.
- Created beautiful and animated landing pages for companies from the electromobility, hotel, and restaurant industries.
- Transitioned existing pure HTML website to Next.js, which enabled i18n and drastically increased the PageSpeed score.
Full-stack Developer
Lokato International Ltd
- Developed a website for group real estate investment with the help of investments worth several million dollars.
- Built a platform for creating quizzes for investors in which they could win coupons that increase profit.
- Oversaw refreshing the portal's graphic layout, using custom designs and migrating styles from Material Design to Tailwind.
- Created a social networking site for businesses that allows for communication, news sharing, and customization of the portal look.
- Created an extensive WYSIWYG editor that supports various content formats such as videos, images, emoticons, and external media.
- Migrated the project's codebase from JavaScript to TypeScript.
Web Developer
Ideo Sp. z o.o.
- Integrated new payment methods in the country's largest online car parts store.
- Developed a mobile version of the store using the Google AMP framework.
- Supervised the synchronization process of over two million products with external supplier catalogs.
- Created an internal company blog, allowing more accessible communication between employees of different store departments.
Experience
Over.flights
https://www.over.flights/What initially started as a hobby side project has the potential to be soon used to train students at a particular aviation training center.
MyPeeps: Effective Community Management
I spearheaded the application's front-end architecture. Proposed and implemented changes that resulted in improving application loading and rendering times. I built reusable components and created a base Tailwind CSS style. Led a process of migration from Vue 2 to Vue 3 with TypeScript.
Papermate.io
https://papermate.ioIt was featured on a YouTube channel with over 500,000 subscriptions and, since then, has been regularly visited by users who regularly upload new content. It was developed using React, styled components, Node.js, and MongoDB.
Education
Master's Degree in Aerospace Engineering
Rzeszow University of Technology - Rzeszow, Poland
Engineer's Degree in Aerospace Engineering
Rzeszow University of Technology - Rzeszow, Poland
Skills
Libraries/APIs
React, Node.js, Mapbox GL, Vue 2, Socket.IO, jQuery, Vue, Stripe API
Tools
Prisma, Git, TecDoc
Languages
TypeScript, SQL, CSS3, JavaScript, HTML5, CSS, PHP, AMPscript, GraphQL
Frameworks
Next.js, Tailwind CSS, Express.js, Vuetify, NestJS, Redux, Laravel, Nuxt.js, Koa, OAuth 2
Paradigms
REST, Unit Testing, E2E Testing
Platforms
Mapbox, Blockchain, Shopify, Amazon Web Services (AWS), Windows, Linux
Storage
PostgreSQL, JSON, MongoDB, Amazon S3 (AWS S3), PostGIS
Other
English, TypeORM, User Experience (UX), GeoJSON, ADS-B, Fabric Design, Discord, Payment APIs, Cosmos, IPFS, Material Design, Engineering, 3D CAD, Electronics, Styled-components
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