Personal details

Marcell T. - Remote front-end developer

Marcell T.

Timezone: Budapest (UTC+2)

Summary

I strongly believe that Code Quality Matters. I hold myself to high standards even in smaller projects, and in my spare time I keep learning about the latest technologies and architectural design patterns.

My favorite topics are performance optimization and concurrency, but I am keen on and proficient in a wide variety of technologies (especially if it has something to do with C# or React which I love). Even though most of my work experience revolves around building ASP.NET Core Web APIs and React/Redux(/TypeScript) frontends, I have had projects involving Windows Forms, WPF, Xamarin Forms / Android, numerous console apps, etc.

Besides learning, I also love to share my knowledge with others. My favorite part of leading the development team at my current workplace is being able to mentor junior devs who share my passion in ever improving their design, code quality and performance.

Check out my self-built blog where I document my developer journey: https://marcelltoth.net

Work Experience

Senior Frontend Engineer
11sigma | Feb 2020 - Present
HTML/CSS
Node.js
API
Responsive Design
TypeScript
React
JavaScript
Webpack
RESTful API
At 11sigma I joined an elite team of experienced engineers working for https://stoplight.io/ on their API documentation product. Our daily tasks vary greatly from UX design to performance optimization dealing with huge amounts of data, to working with Product to find the best solution for our customers, to mentoring junior engineers who just recently began their journey in web development.
Full Stack Developer, Team Lead
Appsint Ltd. | Mar 2017 - Present
C#
TypeScript
React
Webpack
Redux
.NET Core
ASP.NET Core
With a small team we are building the "Wordpress of Enterprise Systems". A single code base powers multiple vasty different enterprise projects ranging from ticketing to complex workflow-heavy ERP solutions. Besides hands on development, since 2018 I am in charge of leading the development team and mentoring our junior devs. When I started, the project was a mess, a monolithic, badly structured WebForms application (a few classes with 5-15k lines each), which would not even compile in one step. Source Control was very simple (single branch TFVC repo), and no automated build process of any kind. Under my supervision this was slowly transformed into its current state: A well structured ASP.NET Web API (soon .NET Core) with good separation of concerns, a separate React based SPA frontend, supported by a well defined git workflow, automated CI and our custom built CD application.

Personal Projects

PriceSailor
2019
OAuth 2.0
Domain-Driven Design
TypeScript
React
GraphQL
ASP.NET Core
I am building a full web platform for the parcel forwarding service PriceSailor. The back end is an ASP.NET Core 3 GraphQL API using Domain Driven Design, the frontend is based on Typescript / React / Apollo.
Neptun LiteIconOpenNewWindows
2018
Web Scraping
Xamarin.Android
Open Source Software
This project is in Hungarian (although the code is in English), but the main idea is: Students here have a very outdated system which makes it really hard to check your schedule, exams or other everyday information. So I decided to build a mobile app to help this. As there is no official API, I have to scrape the official website, but it works very reliably, the app is used by a few hundered students every month.