Hi, my name is

Rémi Langdorph.

aka merlleu 🛠️

A passionate backend developer. I love to work on large-scale projects, solve complex problems and discover new techs. I am currently co-founder & lead developer at War Legend, and engineering student at ESILV Paris majoring in Cloud Computing & Cybersecurity.

About Me

Tech enthusiast for years, I love to learn and discover new technologies at scale.

Since 2018 I work on WLS.GG, an online tournament platform for video games with over 900.000 users. I am responsible for the backend development, the infrastructure and the security of the platform. With a Rust/Go backend, a Cassandra/ScyllaDB/Elasticsearch database and a Kubernetes infrastructure, I have the opportunity to work on a wide range of technologies.

Now that WLS.GG is stable, I am looking for new challenges and opportunities to learn and grow.

Here are my favorite technologies of the moment:
  • Rust
  • Go
  • Python
  • Cassandra / ScyllaDB
  • Redis
  • Kubernetes

Experience

Co-founder & Lead Developer - War Legend
June 2018 - present

Backend development: APIs written in Rust, Go and Python, using Cassandra/Redis/MariaDB/Elasticsearch.

Infrastructure: Kubernetes on-premise, self-hosted Gitea, CI/CD, zero-trust, on-premise ScyllaDB cluster of 5 large nodes.

Supervision of a team of 4 developers, worked on large-scale projects for Epic Games and Societe Generale.

Creation of WLS.GG ecosystem, a set of tools & websites to organize competitive events on games like Fortnite, 900k+ users.

Development of Rust advanced parsing libraries for Fortnite network replay files, for backend, frontend using WebAssembly and native desktop client.

Freelance Backend Developer - Les Flammes Awards
2023 - 2024

Worked on the voting website lesflammesawards.com, a french ceremony that rewards Rap community’s favorite artists.

Developed a new Rust API using Cassandra/Redis and Firebase Auth, migrated to Kubernetes from Monolithic PHP app, helped Frontend integration, 250k+ users in a week.

For the second edition, I developed a Rust API to replace Firebase Auth, with abuse detection, rate limiting and 2fa with email along. I also replaced the PHP pages with static pages and a Rust renderer service for dynamic content.

Education

2021 - 2026
Engineering Degree in Cloud Computing & Cybersecurity
ESILV Paris

Majoring in Cloud Computing & Cybersecurity. C#/Python Development.

Project Management / Soft Skills.

Student associations: programmed embedded systems using STM32 and nRF microcontrollers with Embassy-rs. Designed and programmed a 4G telemetry system for a Formula Student car using RP2040 and SIM6700.

Open Source Projects

Abilisk Firewall
Rust Work In Progress Kubernetes
Abilisk Firewall
A distributed firewall for dedicated servers to allow traffic from Kubernetes nodes public ips.
Postfix Relay API
Rust Docker Email Production Ready
Postfix Relay API
Send emails from anywhere using a simple API, using Postfix and Rust, without compromising security.
scylla-macros-flex
Rust Production Ready ScyllaDB
scylla-macros-flex
A rust crate to implement improved parsing of Rust structs from ScyllaDB data.
LDV-Dashbot
Python Docker Reverse Engineering
LDV-Dashbot
Reverse-engineered my school's app & website, and made a library to interact with their servers and automate tasks.
Pinte
C# School Project Windows App
Pinte
2nd year project at ESILV, a MSPaint to work with BMP files in C#.
Word Search
C# School Project Console App Game
Word Search
2nd year project at ESILV, a word search console game in C#.

Get in Touch

You can contact me on Linkedin or email :)