Julien Montagut

Tech Lead & Senior Software Engineer

With over a decade of experience in software development, I'm now focusing on Rust, Gleam and modern programming stacks. I specialize in building high-performance applications, from CLI tools to distributed systems. Based in Bordeaux 🇫🇷, I work with clients worldwide.

Technical Expertise

Programming Languages

C# 10+ years

Rust 2+ years

Swift 3+ years

Lua 1+ years

Frameworks & Tools

.NET 10+ years

Tokio 2+ years

Axum 1+ years

Nix 1+ years

Professional Journey

Senior Backend Developer

@ Betclic

2022-2023

Bordeaux, France 🇫🇷

Led performance optimization initiatives for the sports betting platform:

▹ Reduced end-to-end system latency from 8s to 2s
▹ Developed microservices using C# .NET 7/8
▹ Implemented distributed architecture with MongoDB, Kafka, Redis, and gRPC
▹ Managed deployments using Jenkins and Terraform
▹ Set up monitoring and logging with Datadog and AWS

Senior Software Engineer

@ Dekra

2021-2022

Bordeaux, France 🇫🇷

Architected and developed the new vehicle inspection platform:

▹ Led backend development using .NET and C#
▹ Designed distributed architecture with MongoDB and Azure Service Bus
▹ Implemented performance testing suite using k6
▹ Promoted TDD and continuous delivery practices
▹ Collaborated in an Agile/SAFe environment

Lead Developer

@ CDiscount

2020-2021

Bordeaux, France 🇫🇷

Led the development of a live-shopping platform:

▹ Managed video integration on product pages with performance optimization
▹ Implemented authentication using Keycloak
▹ Led technical team and provided mentorship
▹ Conducted performance testing with Gatling
▹ Facilitated Agile ceremonies and technical planning

Senior Software Engineer

@ WIIDII

2019-2020

Bordeaux, France 🇫🇷

Architected and maintained microservices platform:

▹ Managed 100+ microservices using .NET Core and C#
▹ Worked with MongoDB, RabbitMQ, and REST APIs
▹ Orchestrated containers with Apache Mesos
▹ Implemented monitoring using ELK and Prometheus/Grafana
▹ Mentored new developers and promoted DDD practices

CTO

@ Clezer

2017-2019

Bordeaux, France 🇫🇷

Led technical vision for a fintech startup:

▹ Developed MVP for group payment card platform
▹ Built web app with React and mobile app with React Native
▹ Created backend services using TypeScript and NodeJS
▹ Managed infrastructure on Google Cloud Platform
▹ Led development team and handled technical recruitment

Technical Lead

@ RE'FLEKT

2015-2017

Munich, Germany 🇩🇪

Led AR/VR development for industry clients:

▹ Created AR applications for clients like Audi, Porsche, BMW
▹ Developed iOS applications in Objective-C
▹ Built AR applications using Unity Engine and C#
▹ Managed international development team
▹ Conducted technical workshops in German

Let's Connect

Looking for a seasoned developer to bring your project to life? Let's discuss how I can help you achieve your goals.

✉️ Get in Touch