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Johann L. Email & Phone Number
Lead developer Ruby on Rails
at
Effy
LinkedIn matched
✓ Verified Jun 2026
3 data sources
Profile completeness 100%
Current company
Role
Lead developer Ruby on Rails
Location
Greater Strasbourg Metropolitan Area, France, France
Company size
Who is Johann L.? Overview
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Quick answer
Johann L. is listed as Lead developer Ruby on Rails at Effy, a company with 328 employees, based in Greater Strasbourg Metropolitan Area, France, France. AeroLeads shows a matched LinkedIn profile for Johann L..
Johann L. previously worked as Ruby on Rails lead developer at Effy and Ruby on Rails developer at Effy. Johann L. studied at 42.
Company email context
Email format at Effy
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Effy
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Profile bio
About Johann L.
Ruby on Rails developer, passionate and self-taught since my youngest age, I joined the 42 school in September, 2013.I mainly acquired my skills through various personal projects, from the creation of video game bots, Twitter bots, various crawling and task automation tools, all the way up to setting up servers and communities.Professionally, I had the opportunity to put my skills at the service of Hivency for nearly a year, where I created a real-time matching algorithm and integrated various social networks before going green with Effy to work on a service helping people improve the energy efficiency of their homes and moving to sustainable energies.
Listed skills include Public Speaking, Powerpoint, Leadership, Teaching, and 8 others.
Current workplace
Johann L.'s current company
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9 roles
Johann L. work experience
A career timeline built from the work history available for this profile.
Ruby On Rails Lead Developer
Current
Mar 2023 - Present
Ruby On Rails Developer
Founded 10 years ago, Effy is a major french energy efficiency actor.For the second time, I joined an existing agile team of 4 developers and a product owner, to improve and maintain an internal application.This time, I mainly worked remotely, with a team working both remotely and on-site.
Jan 2021 - Mar 2023
Ruby On Rails Developer
Founded 10 years ago, Effy is a major french energy efficiency actor.I joined an existing agile team of 4 developers and a product owner, to improve and maintain an internal application.Amongst other things, I was able to intervene on the following tasks:- Development of new critical features, covered by functional tests- Improvements on functional test.
Apr 2019 - Oct 2019
Developer
Sncf Is A Joke - Personal Project
It's a Twitter bot that posts daily statistics about delays on french railways (SNCF).It requests disruptions data from an external API and computes statistics from them (accumulated delay, main causes of delays, specific stations that gathered the most delays), before displaying them as Tweets.The bot can be seen in action on the @sncfisajoke Twitter.
Nov 2018 - Mar 2019
Co-Founder - Devops Engineer
Mufibot - Personal Project
Mufibot was a bot for the famous video game Dofus, used by several hundred people every day.It simulated the behavior of an in-game character as well as the game's client itself, allowing users to automate a multitude of tasks on several dozen accounts simultaneously.Maintained for more than 3 years, it has been the most used botting software on Dofus.
Apr 2015 - Jul 2018
Developer
Mufibottouch - Personal Project
MufibotTouch was the first bot ever made for the mobile and tablet version of Dofus.It was a complete game simulation and was working on the closed beta version of the game.It automated many tasks in the game and was completely autonomous, as it was able to operate for several days without any human intervention.The initial game analysis was done without.
Jan 2016 - Sep 2017
Web Application Developer
Founded in 2016, Hivency is a solution that enables brands to discover influencers.I joined the startup a few months following its creation.Amongst other things, I was able to intervene on the following tasks:- Creation of the new platform version to ensure maintenability for the years to come- Creation of a real-time matching algorithm following multiple.
Sep 2016 - Aug 2017
Web Application Developer - Internship
Quickevents
Jul 2014 - Oct 2014
Team & coworkers
Colleagues at Effy
Other employees you can reach at effy.fr. View company contacts for 328 employees →
LT
Laurent Tournier
Colleague at EffyBordeaux, Nouvelle-Aquitaine, France, France
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BB
Benjamin Bernet
Colleague at EffyValence, Auvergne-Rhône-Alpes, France, France
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PL
Poe Li
Colleague at EffyNew York, New York, United States, United States
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HV
Hugues Villemain
Colleague at EffyParis, Île-de-France, France, France
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SA
Stéphane Augusto
Colleague at EffyGreater Paris Metropolitan Region, France
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LB
Loïc Binga
Colleague at EffyMontigny-lès-Cormeilles, Île-de-France, France, France
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SR
Sarah Remmache
Colleague at EffyGreater Paris Metropolitan Region, France
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FM
File Master
Colleague at EffyGambir, Jakarta, Indonesia, Indonesia
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MM
Mathieu Moriceau
Colleague at EffyGreater Paris Metropolitan Region, France
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JM
Jean Marie Alavez
Colleague at EffyAuvergne-Rhône-Alpes, France, France
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Laurent Tournier
Colleague at EffyBordeaux, Nouvelle-Aquitaine, France, France
View →
BB
Benjamin Bernet
Colleague at EffyValence, Auvergne-Rhône-Alpes, France, France
View →
PL
Poe Li
Colleague at EffyNew York, New York, United States, United States
View →
HV
Hugues Villemain
Colleague at EffyParis, Île-de-France, France, France
View →
SA
Stéphane Augusto
Colleague at EffyGreater Paris Metropolitan Region, France
View →
LB
Loïc Binga
Colleague at EffyMontigny-lès-Cormeilles, Île-de-France, France, France
View →
SR
Sarah Remmache
Colleague at EffyGreater Paris Metropolitan Region, France
View →
FM
File Master
Colleague at EffyGambir, Jakarta, Indonesia, Indonesia
View →
MM
Mathieu Moriceau
Colleague at EffyGreater Paris Metropolitan Region, France
View →
JM
Jean Marie Alavez
Colleague at EffyAuvergne-Rhône-Alpes, France, France
View →
1 education record
Johann L. education
FAQ
Frequently asked questions about Johann L.
Quick answers generated from the profile data available on this page.
What company does Johann L. work for?
Johann L. works for Effy.
What is Johann L.'s role at Effy?
Johann L. is listed as Lead developer Ruby on Rails at Effy.
Where is Johann L. based?
Johann L. is based in Greater Strasbourg Metropolitan Area, France, France while working with Effy.
What companies has Johann L. worked for?
Johann L. has worked for Effy, Sncf Is A Joke - Personal Project, Mufibot - Personal Project, Mufibottouch - Personal Project, and Hivency.
Who are Johann L.'s colleagues at Effy?
Johann L.'s colleagues at Effy include Laurent Tournier, Benjamin Bernet, Poe Li, Hugues Villemain, and Stéphane Augusto.
How can I contact Johann L.?
You can use AeroLeads to view verified contact signals for Johann L. at Effy, including work email, phone, and LinkedIn data when available.
What schools did Johann L. attend?
Johann L. studied at 42.
What skills is Johann L. known for?
Johann L. is listed with skills including Public Speaking, Powerpoint, Leadership, Teaching, Microsoft Word, Research, Tutoring, and Event Planning.
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