# Bálint Szekeres (0xb4lint)

> Technology Director & Partner at feat. agency, Budapest. Laravel, Vue & TypeScript engineer. Founder of Mailway.

Markdown version of https://b4lint.hu for agents and terminals. Guide for agents: https://b4lint.hu/llms.txt

## 0. hello world

Born and raised @ [Balaton, Hungary](https://en.wikipedia.org/wiki/Lake_Balaton).

I'm Technology Director and a Partner at **[feat. agency](https://feat.agency)**, a *creative & technology-driven independent communication agency in Budapest*. I architect the stack behind our client work — Vue 3 + Laravel applications for well-known multinational brands — along with the internal tooling and reusable packages that power the agency's delivery pipeline.

On the product side, I'm building **[Mailway](https://mailway.net)**, my own email infrastructure platform: a single gateway between applications and their email providers, with observability, automatic failover, and a searchable archive built in.

On the open source side, I maintain **[vite-plugin-webfont-dl](https://github.com/feat-agency/vite-plugin-webfont-dl)** (2M+ downloads) and have contributed to Laravel, Symfony, and Vite, among others.

I've been shipping to production since 2014 — starting as a backend developer at one of Hungary's largest creative & marketing agencies, where I built dozens of high-concurrency, nationwide consumer promotions, designed the Git workflow behind the team's rapid deployments, and went on to lead seven developers. Along the way there were custom content management systems, decision-support tools, and a few IoT experiments — a heating mug powered by hashtags and a drone with a cookie ejector.

## 1. highlights

### 1.0 projects

- [mailway.net](https://mailway.net) *(founder)*
- [app.mcdonalds.hu](https://app.mcdonalds.hu)
- [sajtbisztro.hu](https://sajtbisztro.hu)
- [daken.hu](https://daken.hu)
- [youngart.hu](https://youngart.hu)
- [autotartosberlet.ayvens.com](https://autotartosberlet.ayvens.com)
- [targoncavasarlas.hu](https://targoncavasarlas.hu)
- [feat.agency](https://feat.agency)
- [campona.hu](https://campona.hu)

### 1.1 community

- [feat-agency/vite-plugin-webfont-dl](https://github.com/feat-agency/vite-plugin-webfont-dl) — npm: [vite-plugin-webfont-dl](https://www.npmjs.com/package/vite-plugin-webfont-dl)
- [digitalocean/nginxconfig.io](https://github.com/digitalocean/nginxconfig.io) — [nginxconfig.io](https://www.digitalocean.com/community/tools/nginx)

### 1.2 GitHub contributions

Merged pull requests by [0xb4lint](https://github.com/0xb4lint) to:

- [laravel/framework](https://github.com/laravel/framework/pulls?q=is%3Apr+author%3A0xb4lint+is%3Amerged)
- [laravel/docs](https://github.com/laravel/docs/pulls?q=is%3Apr+author%3A0xb4lint+is%3Amerged)
- [symfony/symfony](https://github.com/symfony/symfony/pulls?q=is%3Apr+author%3A0xb4lint+is%3Amerged)
- [filamentphp/filament](https://github.com/filamentphp/filament/pulls?q=is%3Apr+author%3A0xb4lint+is%3Amerged)
- [vitejs/vite](https://github.com/vitejs/vite/pulls?q=is%3Apr+author%3A0xb4lint+is%3Amerged)
- [nunomaduro/larastan](https://github.com/nunomaduro/larastan/pulls?q=is%3Apr+author%3A0xb4lint+is%3Amerged)
- [spatie/image-optimizer](https://github.com/spatie/image-optimizer/pulls?q=is%3Apr+author%3A0xb4lint+is%3Amerged) *(avif support)*
- [nodemailer/smtp-server](https://github.com/nodemailer/smtp-server/pulls?q=is%3Apr+author%3A0xb4lint+is%3Amerged)
- [ebess/advanced-nova-media-library](https://github.com/ebess/advanced-nova-media-library/pulls?q=is%3Apr+author%3A0xb4lint+is%3Amerged)
- [intervention/image](https://github.com/intervention/image/pulls?q=is%3Apr+author%3A0xb4lint+is%3Amerged)
- [feat-agency/avif](https://github.com/feat-agency/avif) *(avif research)*

## 2. skills

```
skills/
├── languages/       PHP, TypeScript, Node.js, Bun, Bash, Python, C++, Swift, Rust
├── frameworks/      Laravel, Filament, Symfony, Vue, Vite, Pinia, Playwright
├── infra/           NGINX, MySQL, ClickHouse, Redis, Docker, AWS, Azure, Google Cloud, Hetzner
└── ai/              Anthropic, OpenAI
```

## 3. experience

### 3.1 [feat.](https://feat.agency) — Budapest, Hungary [2019 - ]

- **Technology Director, Partner** — February 2019 -

### 3.0 [HPS Group](https://hps.hu) — Budapest, Hungary [2014 - 2019]

- **Business Unit Director of Development** — January 2019 - February 2019
- **Lead Developer** — May 2018 - December 2018
- **Backend Developer** — August 2014 - April 2018

## 4. education

### 4.2 [University of Pannonia - Faculty of Information Technology](https://mik.uni-pannon.hu) [2009 - 2014] — Veszprém, Hungary

os: Win7 → Ubuntu → Debian → Fedora → Linux Mint → macOS · net: broadband

**BSc Student of Engineering in Information Technology**

- Basics of natural sciences
- Economics and social sciences
- Programming module *(C, C++, Java)*
- System engineering module
- Information systems module
- Laboratory exercises

### 4.1 [Táncsics Mihály Secondary Grammar School](https://tancsics.hu) [2005 - 2009] — Kaposvár, Hungary

os: XP → Vista → Win7 · net: ADSL

**Advanced math class**

- **97%** IT matura
- Elevated levels of IT matura
- First dynamic websites: PHP + MySQL

### 4.0 [Primary School of Balatonlelle](http://iskola.balatonlelle.hu) [1997 - 2005] — Balatonlelle, Hungary

os: Win95 → Win98 → XP · net: 56k dial-up

- Several math competitions
- First lines of code: Turbo Pascal
- First HTML page, hand-crafted in Notepad++

## 5. misc

### 5.0 competitions

**1st place** at the VIII. University of Pannonia [24-Hour Programming Competition](https://prog24.mik.uni-pannon.hu)

The challenge was to build a client program with an AI agent. Players hunted each other in a virtual paintball game across multiple unknown maps.

Articles: [VEOL](https://www.veol.hu/egyetem/programozok-ejszakaja-1617257/), [Computerworld](https://computerworld.hu/tech/robotagyakat-programoztak-147801.html)

### 5.1 certifications

- VMware vSphere Certificate [2012]
- ECDL [2009]
- Driver's license [2009]
- English language exam — B2 [2008]

### 5.2 social

- [facebook](https://www.facebook.com/0xb4lint)
- [linkedin](https://www.linkedin.com/in/0xb4lint/)
- [github](https://github.com/0xb4lint)
- [e-mail](mailto:szekeres@b4lint.hu)
- [phone](tel:+36303329153)