Julien Lestel
CTO Cloud Consultant at CiTiO
Toulouse, Occitania, France
Summary
🤩
Rockstar🎓
Top SchoolJulien Lestel is a seasoned CTO and cloud architect with 13 years of hands-on experience delivering cloud-native, serverless, Big Data and DevOps solutions across SMEs and innovative startups in commerce, IoT, FinTech and AI. As CTO/Cloud Consultant at CiTiO he provides "CTO as a Service" and 24/7 cloud outsourcing, specializing in AWS/GCP, Terraform, Go and scalable infrastructure. He combines strategic leadership from prior CTO and managing partner roles with deep implementation skills—contributing to open-source projects like TeslaMate by improving Tesla API integrations and token management. Based in Toulouse, Julien is as comfortable defining cloud strategy as he is modifying core API logic, bringing pragmatic engineering to complex, production-grade systems.
13 years of coding experience
5 years of employment as a software developer
DUT, Informatique de gestion, DUT, Informatique de gestion at IUT BlagnacIngénieur Informatique, Nouvelles Technologies de l'Informatique pour l'Entreprise, Ingénieur Informatique, Nouvelles Technologies de l'Informatique pour l'Entreprise at IUP NTIE
Github Skills (8)
el10
api10
environment-variables10
apidoc10
elixir10
back-end-development9
mqttnet5
mqtt5
Programming languages (13)
Github contributions (5)
teslamate-org/teslamate
Oct 2023 - Jul 2026
A self-hosted data logger for your Tesla 🚘 [main maintainer=@JakobLichterfeld]
Role in this project:
Back-end Developer
Back-end DeveloperContributions:7 reviews, 17 PRs, 64 comments in 2 years 8 months
Contributions summary:Julien focused on enhancing the TeslaMate project's integration with the Tesla API, including dynamic endpoint configuration. Their contributions include adding environment variables for API host, authentication, and streaming configurations. They also implemented changes to handle API token management and refresh, and added support for invalid certificates on WSS connections. The user's work involved modifications across multiple project files, suggesting involvement in core API interaction logic and configuration.
data-loggerloggerhostedtesla-apimqtt
jlestel/myteslamate
Nov 2023 - Jul 2026
A self-hosted data logger for your Tesla 🚘
Contributions:33 pushes, 13 branches in 2 years 7 months
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