Gábor is available for hire
Hire GáborGábor Szalontai
Verified Expert in Engineering
Front-end Developer
Budapest, Hungary
Toptal member since May 10, 2021
Bio
Gábor is a React developer with over six years of experience developing React applications for a wide range of clients, from startups to Fortune 500 companies. He contributed quality code to various UI libraries, customer-facing, and internal systems. Gábor joined Toptal to work with and learn from the most successful companies and engineers in the industry.
Portfolio
SEON Technologies
JavaScript, HTML, CSS, React, Figma, Amazon Web Services (AWS), Node.js...
Cookie.AI Inc
React, Storybook, JavaScript, HTML, CSS, Figma, Amazon Web Services (AWS), APIs...
DigitalBuilds Kft.
JavaScript, React, HTML, CSS, APIs, TypeScript, Material UI, Next.js, Ant Design
Experience
- JavaScript - 7 years
- HTML - 7 years
- CSS - 7 years
- React - 6 years
- Node.js - 4 years
- Redux - 3 years
- Amazon Web Services (AWS) - 3 years
- TypeScript - 2 years
Availability
Part-time
Preferred Environment
Visual Studio Code (VS Code), GitHub, JavaScript, React, Node.js, HTML, CSS, Amazon Web Services (AWS), Figma, TypeScript
The most amazing...
...delivery I've carried out is the entire front end of a React-based, production-ready solar panel marketplace, done in a week.
Work Experience
Senior Full-stack Developer
2022 - PRESENT
SEON Technologies
- Implemented a major part of the design system of the company.
- Enforced strict code quality during frequent code reviews and refinement meetings.
- Developed a major part of an internal-facing React application, Including the back and front end.
- Helped with mitigating issues affecting multiple development teams.
- Participated actively in community events and held presentations about React best practices.
Technologies: JavaScript, HTML, CSS, React, Figma, Amazon Web Services (AWS), Node.js, TypeScript, APIs
React Developer
2021 - 2022
Cookie.AI Inc
- Contributed to the React UI library of the stealth startup, implementing component designs based on Figma.
- Developed certain parts of an internal-facing React web application.
- Fixed bugs, participated in code reviews, and helped introduce React best practices.
Technologies: React, Storybook, JavaScript, HTML, CSS, Figma, Amazon Web Services (AWS), APIs, TypeScript
Co-founder | Front-end Developer
2021 - 2022
DigitalBuilds Kft.
- Contributed to outlining the vision for the startup and actively participated in building it. This included marketing, finance, and product development.
- Developed the front end of an online marketplace for solar panel construction for a Hungarian startup.
- Helped design the development workflow and set up the development environment for our team.
- Developed most of the front end of a story-sharing social media platform for an international client.
- Developed almost the whole front end of a quiz-based university search application for a Hungarian client.
- Created components and features for a best practices library using React backed by a GraphQL back end.
Technologies: JavaScript, React, HTML, CSS, APIs, TypeScript, Material UI, Next.js, Ant Design
Front-end Developer
2018 - 2021
Hearsay Systems
- Helped develop a web application for managing and serving websites for thousands of financial advisors across the US. Used React, JavaScript, HTML, CSS, and AWS.
- Maintained a content management system providing social media automation for American insurance companies. Used technologies such as JavaScript, React, Python, and AWS.
- Created a full-featured Redux-based website editor integrated into the existing company infrastructure.
Technologies: JavaScript, React, Redux, Amazon Web Services (AWS), HTML, CSS, Figma, APIs
Front-end Developer
2016 - 2018
EPAM Systems
- Collaborated actively with international product management, web development, and support teams.
- Adopted the basics of Agile development and worked in different Agile teams, using methodologies like Scrum and Kanban.
- Helped design the architecture of React and Redux front ends.
- Developed components for a React UI library for a portfolio management web app for Deutsche Bank wealth managers.
- Developed features for a MiFID II-compliant trading platform for Deutsche Bank wealth managers.
- Developed features for the front end and back end of an internal tool for Expedia. It was responsible for the management of localized texts appearing in A/B tests running on the site.
- Learned to use various AWS components and utilized them in actively used applications.
Technologies: JavaScript, React, Redux, Amazon Web Services (AWS), HTML, CSS
Junior Full-stack Developer
2015 - 2016
Simia Alba Kft.
- Learned the basic components and concepts of web development in a professional team. This includes product design, infrastructure, back end, front end, and project management.
- Developed features for a tender management platform used by 10-100 thousand users in Hungary, using Play Framework with Scala.
- Got introduced to React and utilized it in non-mission-critical apps.
- Designed and developed various websites for smaller Hungarian clients.
Technologies: JavaScript, React, HTML, CSS, Sass, Less, Adobe Illustrator
Experience
Solarbnb Online Marketplace
A React-based online marketplace for solar panel construction contracts. I participated in specifying the feature set of the app and created most of its front end. The app had an extremely fast-paced development cycle; we had to build the entire stack from scratch, and the MVP had to be done in about seven days.
MentorStories Web App
A Firebase-hosted, React-based web app with a .NET Core REST API back end. The goal of the application is to create a space for people to share the stories that inspired them during their careers and let others learn from them.
This project had about a 14-day-long development cycle. I participated in creating most of its front end and helped outline its feature set.
This project had about a 14-day-long development cycle. I participated in creating most of its front end and helped outline its feature set.
UniMatch App
A Firebase-hosted React-based application backed by a .NET Core REST API. The platform's goal is to attract potential students to different universities across the globe in a quiz-styled manner.
I helped create the matching algorithm and most of the front end and outline the feature set of the application.
I helped create the matching algorithm and most of the front end and outline the feature set of the application.
Education
2011 - 2015
Pre-degree Certificate in Physics
Eötvös Lóránd University - Budapest, Hungary
Certifications
SEPTEMBER 2018 - SEPTEMBER 2021
AWS Certified Solutions Architect Associate
AWS
Skills
Libraries/APIs
React, Node.js
Tools
GitHub, Slack, Jira, Figma, Adobe Illustrator
Languages
JavaScript, HTML, CSS, Sass, TypeScript, Less
Frameworks
Material UI, Redux, Ant Design, Next.js
Platforms
Visual Studio Code (VS Code), Amazon Web Services (AWS)
Other
APIs, Storybook
Collaboration That Works
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