Akos Szabacsi, Developer in Budapest, Hungary
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Akos Szabacsi

Verified Expert  in Engineering

Full-stack Engineer and Developer

Location
Budapest, Hungary
Toptal Member Since
February 5, 2024

Akos is an experienced full-stack engineer with 7+ years of diverse experience, including proficiency in the React, TypeScript, and Node.js stack complemented by tech lead and software architect roles. His journey encompasses various industries, including eCommerce, healthcare, automotive, flight simulation, and investment banking. Akos has navigated complex landscapes and contributed his technical expertise to deliver impactful solutions. Since 2018, he's been freelancing across Western Europe.

Portfolio

Maths Education Platform (Berlin, Germany)
React, TypeScript, Cypress, React Testing Library, RxJS, Storybook...
Dietary Supplement eCommerce Site (Switzerland)
React, TypeScript, Sanity.IO, Next.js, Vercel, Chakra UI, Shopify, Percy...
Rail Logistic Application (Wien, Austria)
React, Material UI, TypeScript, Storybook, Microfrontends...

Experience

Availability

Part-time

Preferred Environment

Visual Studio Code (VS Code), Linux, Figma, GitHub, Jira, Confluence, Slack, Teams

The most amazing...

...project I've ever participated in is developing an eCommerce website, drawing in one million monthly visitors.

Work Experience

Senior React/Typescript Developer (contractor)

2023 - 2023
Maths Education Platform (Berlin, Germany)
  • Developed a React-based front-end of a math education platform for students across the DACH region, financed by the German Federal Government.
  • Helped the team to improve its testing strategy and methods. Shared my React Testing Library knowledge.
  • Encouraged and helped the team to use Storybook more and use it efficiently, consequently increasing the quality of reusable components and documentation.
Technologies: React, TypeScript, Cypress, React Testing Library, RxJS, Storybook, UI Components, Amazon Web Services (AWS), Front-end, User Interface (UI), APIs, Web Development, Unit Testing, Context API, JavaScript

Senior React/Typescript Developer

2022 - 2022
Dietary Supplement eCommerce Site (Switzerland)
  • Introduced TypeScript to replace JavaScript, ensuring better code quality and readability.
  • Introduced component testing methods and visual testing methods. The project had no test coverage before I joined.
  • Improved the checkout and purchase process by using a better alternative in Shopify API.
Technologies: React, TypeScript, Sanity.IO, Next.js, Vercel, Chakra UI, Shopify, Percy, UI Components, Front-end, User Interface (UI), APIs, Web Development, Unit Testing, Context API, React Query, JavaScript

Senior React/Typescript Developer

2021 - 2022
Rail Logistic Application (Wien, Austria)
  • Collaborated with a design team to map a design system from Figma into a React component library used by multiple squads/teams within the company.
  • Took ownership of a major component library, drastically improving component reusability and quality within the company.
  • Refactored and simplified several major components to fix or reduce the general overengeering problems the company had before.
Technologies: React, Material UI, TypeScript, Storybook, Microfrontends, React Testing Library, UI Components, Front-end, User Interface (UI), APIs, Web Development, Unit Testing, Context API, JavaScript

Senior React/Typescript Developer

2021 - 2021
Healthcare eCommerce site (Dublin, Ireland)
  • Mentored senior colleagues with no prior knowledge of React and TypeScript.
  • Orchestrated the migration of multiple pages from legacy Angular/.NET code to a React-based statically generated site (GatsybJS), leveraging Contentful as a headless CMS.
  • Integrated the new statically generated React site with the existing website rendered by Angular/.NET, seamlessly incorporating functionalities such as login across the entire platform.
  • Implemented end-to-end (E2E) and visual testing methodologies by integrating Cypress and Percy into the development workflow.
  • Implemented an atomic design hierarchy for our components and thoroughly documented them using Storybook.
Technologies: React, TypeScript, Gatsby, Contentful, Accessibility, HTML, CSS, Nx, UI Components, Amazon Web Services (AWS), Front-end, User Interface (UI), APIs, Web Development, Unit Testing, Context API, React Query, JavaScript, Tailwind CSS

Full-stack Engineer

2018 - 2021
Freelance
  • Designed and created an enterprise resource planning (ERP) system as a lead developer for an auto glass service company.
  • Built and designed an adventure search and reservation web app as a lead developer.
  • Developed an Industrie 4.0 computer numerical control (CNC) machine status monitor application.
Technologies: React, TypeScript, Node.js, MongoDB, PostgreSQL, GraphQL, REST, React Testing Library, C#, Cypress, Docker, Git, Next.js, CSS, Front-end Architecture, Front-end Design, HTML, JavaScript, NestJS, UI Components, Front-end, User Interface (UI), SQL, HTML Email, Full-stack, APIs, Web Development, Unit Testing, Context API

Quantitative Developer

2017 - 2018
Citi
  • Implemented an efficient distributed testing framework for running against pricing libraries.
  • Created and integrated a user-facing internal web app front end for running test scenarios.
  • Developed and implemented a currency data visualization application to provide real-time market insights for traders.
Technologies: React, Node.js, Python, C++, TeamCity, Redux, Git, CSS, Front-end Architecture, Front-end Design, HTML, JavaScript, UI Components, Front-end, User Interface (UI), Flask, SQL, Full-stack, APIs, Web Development

Software Developer

2015 - 2017
CAE
  • Migrated a core flight simulation program to a modern programming language.
  • Designed and implemented a cost estimation tool for an internal department.
  • Designed and implemented a tool for tracking the maintenance process of full-flight simulators.
Technologies: React, Electron, Node.js, AngularJS, C#, C++, Git, CSS, Redux, Front-end Architecture, Front-end Design, HTML, JavaScript, UI Components, Front-end, User Interface (UI), SQL, Full-stack, APIs, Web Development

Powerlifting Tracker App

Developed an application to revolutionize coach-athlete communication, program sharing, and progress tracking in powerlifting. I built it using React, TypeScript, and Node.js with PostgreSQL as the database.

Virtual Reality Based Flight Simulation Platform

As the focus of my thesis project, I researched and developed an innovative solution that utilizes virtual reality technology to map user motions onto 3D-printed aviation instruments and control panels.
2012 - 2016

Bachelor's Degree in Mechatronics Engineering and Complex Systems

Obuda University - Budapest, Hungary

Libraries/APIs

React, Node.js, React Testing Library, Context API, React Query, RxJS

Tools

Jira, Confluence, Slack, Git, Figma, GitHub, CircleCI, TeamCity

Languages

TypeScript, GraphQL, CSS, SCSS, HTML, JavaScript, C++, SQL, Python, C#

Platforms

Visual Studio Code (VS Code), Docker, Amazon Web Services (AWS), Linux, Vercel, Shopify, Contentful

Paradigms

Unit Testing, REST, Functional Programming, Mechanical Design, Microfrontends

Storage

PostgreSQL, MongoDB

Frameworks

NestJS, Cypress, Next.js, Flask, Tailwind CSS, Electron, AngularJS, Redux, Material UI

Other

Front-end Architecture, Front-end Design, UI Components, Front-end, User Interface (UI), Full-stack, APIs, Web Development, Teams, TypeORM, Gatsby, HTML Email, System Programming, Electric, Storybook, Sanity.IO, Chakra UI, Percy, Accessibility, Nx, Sensor Data

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