Julien Kieffer
Mentor
(2 reviews)
US$20.00
For every 15 mins
3
Sessions/Jobs
ABOUT ME
Senior Product Engineer
Senior Product Engineer
Gratuated from a master's degree from the A rated " Grande École" Art & Métiers, Majored in Complex System Engineering, I've been managing Data Analytics and Web development teams and projects for over 8 years.
Passionate, smart and higly efficient, I use problem solving, communication, pedagogy and TDD to insure high quality, continuous delivery to grow your product value.
French, English
Paris (+01:00)
Joined December 2019
EXPERTISE
5 years experience
4 years experience
6 years experience
4 years experience
1 year experience
5 years experience
2 years experience
REVIEWS FROM CLIENTS
(2 reviews)
Dan Lee
February 2020
Very careful and contentious
SS
January 2020
Julien is friendly, approachable with complex problems, and quick to offer various solutions!
SOCIAL PRESENCE
python-fixer
python wrapper for fixer.io
Python
8
0
prestashop-facebook-pixel
Repo to ad' Pixel into your prestashop website.
PHP
3
2
764 Reputation
0
4
12
EMPLOYMENTS
CTO
Vingtcinq - Digital Factort
2016-01-01-Present
CTO & Associate to VingtCinq.
*TECH LEADERSHIP*
Customers' project development, Code reviews, Best practices formalization & follow up, ...
CTO & Associate to VingtCinq.
*TECH LEADERSHIP*
Customers' project development, Code reviews, Best practices formalization & follow up, Technological watch & investment
*STAFF MANAGEMENT & STRATEGY*
Recruitment plannication, New sta integration, Skills development, Ressources allocation, Projects priorization
*RESULTS*
From 4 to 20 Staff
15 Staff recruited
35 Projects Delivered, 20 Customers Happy
Django
Test driven development
RESTful API
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Django
Test driven development
RESTful API
Vue.js
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Team Leader
GFK
2012-03-01-2015-12-01
Supervision of a 4 people back office team , in charge of a central activity in the world of distributor panels.
Main missions:
- Busin...
Supervision of a 4 people back office team , in charge of a central activity in the world of distributor panels.
Main missions:
- Business processes standardization & improvement.
- Production Planning and monitoring, KPIs implementation and monitoring.
- Specific activities prioritization and organization.
SQL
Excel
Excel VBA
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SQL
Excel
Excel VBA
NumPy
Pandas
Numerical Methods
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PROJECTS
Internal Application for Purchasing
2019
For a French top ranked company, specialized in public work, I managed, planed and handle an on field purchasing app.
App allows to:
- B...
For a French top ranked company, specialized in public work, I managed, planed and handle an on field purchasing app.
App allows to:
- Browse and search products through a multi layered catalog, ranked by category, suppliers and locations.
- Send order to both supplier and accounting services
Data is synced with company's ERP to keep the catalog updated.
Django
Ionic 4
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Django
Ionic 4
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OCPI Hub
2020
OCPI is a protocol to share Electric Vehicle charging data.
From documentation, I've developed a Django Based App' for:
- Implemented mo...
OCPI is a protocol to share Electric Vehicle charging data.
From documentation, I've developed a Django Based App' for:
- Implemented modules:
Locations, Sessions & CDRs
Within those modules it is possible to :
- Fetch data from partners API
- Recieve Push request from partners
- Expose data to customers
Token based authentification allows record level permissions, while I had to implement custom DRF Pagination, Authentication Backend, Error Handling and Response formatting.
Django
PostgreSQL
Test driven development
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Django
PostgreSQL
Test driven development
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