Christian G.

Data Scientist

690 dollar
Freelancer
21 years
Paris, FRANCE

My experience

More

FreelanceMarch 2019 - Present

* Support Business and IT executive in defining data architecture, governance, modeling and integration
* Identify scenarii where advanced analytics and machine learning can drive real business impact
* Delivery solutions that make business ambition become a tangible reality
* Transform organisations toward data-centric cultures
More

KERING, Datalab & AnalyticsJune 2013 - Present

In charge of analytics and merchandise planning solutions for all Kering luxury brands: Gucci, Bottega Veneta, Saint-Laurent, Balenciaga, S. MacCarthney, A. McQueen. Responsible for definition of strategic roadmap, software selection, projects delivery, and support to live applications. Management of 15 internals (project managers, functional and technical experts) and 6M EUR yearly budget, 2000+ users.
Main achievements #1: Implementation of shared BI service governance model solutions

covering demand management, delivery and support lifecycles, all based on Agile best practices. Convergence of 6 main fashion brands into a common data model and shared analytics solution that enabled consolidation and benchmark, Increased service level to users from 60 to 90% , Renegotiation of supplier fees up to 60%
Main Achievement #2: Implemented a cloud-based operational cache, based on cloud and NoSQL architecture, where all customer-events converge into a real-time customer 360°

overview that supports front office digital application in store and on line
Main Achievement #3: Implemented a collaborative innovation space called ``datalab'',
providing data scientists the technology and support to run early algorithms research activities.
2 machine learning projects under industrialization aiming at marketing campaign personalization and sales forecast optimization.
Main Achievement #4: Supported SAP FMS and BW4Hana implementation.

Functional expertise: Executive stakeholder management, indirect management in matrix-like organizations, agile delivery through feature teams
Technical expertise: Microstrategy, Tableau, Exadata, Kafka, Solr, Cassandra, Nifi, Python, Scala, Spark, S3, Druid, Superset, SAP FMS, BW4HANA
More

KeringJanuary 2014 - February 2019

Manager of BI and Planning applications for Luxury Couture division: Gucci, Saint-Laurent, Bottega Veneta, Balenciaga, Stella McCartney and ALexandra McQueen. From early demand management to project delivery and maintenance in run mode, my team supports all cycles of Data, analytics and business planning applications lifecycles using best in class technologies such as Board, Microstrategy, Oracle Exadata, ODI and RPAS. We also provide innovative solutions using big data solutions (S3 / Spark / Druid / Cassandra / SOLR) and custom HTML5 frontends, enabling a powerful customer 360° and related omnicanal strategy, or industrializing machine learning algorythms in the fields of marketing campaign personnalization or sales forecast improvement.
More

CTAC FranceFebruary 2010 - December 2014

Creation of a consultancy specialized in SAP Retail and Merchandise Planning system
implementation. Grew from 0 to 15 employees, and obtained the Value Added Reseller status for

SAP solution distribution partnership.
More

TraficJanuary 2013 - October 2013

Design and lead implementation of merchandise planning solution, using SAP BI-IP for budgetting /
Open to Buy and integrated ABAP/Excel development for a custom-made assortment plan

application.
More

CTACJanuary 2009 - January 2013

Started and developed a consultancy specialized in SAP retail. In parallel of delivering projects to

our customers, I ensured all aspects of business administration and development: strategy, pre-sales, partnership, recruitment and coaching of consultants, commercial relationships. I was at the same time ensuring the lead role delivering SAP projects to our customers on the field.
Retail customers: Miss Etam (NL), Casino, Jack Wills (UK), Trafic (BE), Tally Weijl (CH), 3Suisses, GoSport
Main achievements: growing from 0 to 15 employees and 2M EUR sales /year, secured a reseller agreement with SAP France (VAR).
Business expertise: Entrepreneur and business administration, seasonal/fashion merchandise management, omni-channel retail operations.
Technical expertise: SAP BW, BI-IP, ABAP (OO), IS-Retail, Business Object
More

Miss EtamSeptember 2012 - January 2013

Lead the blueprint of a merchandise and assortment planning solution in SAP using BI-IP.
More

Jack WillsMarch 2012 - October 2012

Solution architect for a merchandise planning tool implemented with SAP BI-IP.
Project lead for a complete green-field BI implementation using SAP BW and BO.
More

3 Suisses InternationalJune 2010 - September 2012

Solution architect and project lead for a complete merchandise + catalog planning solution

implementation using SAP BI-IP.
More

Groupe CasinoSeptember 2011 - March 2012

Solution architect for blueprint of a custom pricing application based on SAP-BI-IP + ABAP

development.
More

Go SportFebruary 2011 - September 2011

Solution architect and project lead for a merchandise planning implementation in SAP BI-IP.
More

TALLY WEiJLFebruary 2010 - May 2011

Solution architect and project lead for a merchandise planning implementation in SAP BI-IP.
More

PrintempsJune 2008 - January 2010


Context : Greenfield implementation of IS-Retail, BW and MAP (BI 7.0, ECC6) for a french fashion retailer.
Mission Details: I was in charge of implementing the new MAP solution in collaboration with SAP Germany to provide product managers with both strategic and operational planing applications in BW for their seasonal merchandise procurement.
Specific tasks I handled:
BW customizing (extractors, data modelling, reports creations)
ABAP developments
Creation of planing web application
MAP customizing: Master data planing in BI and data retraction in ECC6 Retail via Release Workbench.
More

FreelanceJanuary 2001 - January 2009

I participated in 10+ SAP implementations as a freelance consultant & developer in the field of Business intelligence, merchandise and financial planning : Retail customers: Reliance Retail (India),, Body Shop (UK),, Printemps, BricoDépôt. Other industries: Rolex, Hewlett Packard, Orange (UK), Arcelor, L’Oréal, Lyreco. Technical expertise: BW (certified), SAP ECC and IS-Retail, BPC, BI-IP, SAP Merchandise & Assortment Planning, ABAP (OO), FI (certified), CO (certified). Business expertise: business intelligence and analytics retail operations, financial planning and control, supply chain operations.
More

LyrecoFebruary 2008 - June 2008

full project life cycle.
Context : Implementation of a corporate financial planing solution for a stationery distributor (BI 7.0, ECC6).
Mission Details: I was in charge of implementing a financial planing tool based on BI-IP technology to provide management across 25 countries with a unique budget application
Specific tasks I handled:
BW customizing (extractors, data modelling, reports creations)
ABAP developments
STS workflow customizing
Creation of planing web application
Project management and team leading
More

L'Oreal S.A.July 2007 - February 2008

full project life cycle.
Context : BW implementation following the go live of a new central purchasing SRM system (BI 7.0, R/3 4.6C).
Mission Details: I was in charge of designing the BW data flow (datasources, ODS and cubes) and reports related to the new procurement flows brought by the SRM application. Reports mainly consisted of monitoring purchase orders, goods receipt, invoices, GR/IR clearing account management, financial reports and actual/budget control.
Specific tasks I handled:
BW customizing (extractors, data modelling, reports creations)
ABAP developments
Creation of web reports and Bex reports

More

The Body ShopFebruary 2007 - May 2007

Context : Support and assist the BI team of a major retailer in re-designing their BW system after several years of live activity (BW 3.5, R/3 4.6C, POSDM).
Mission Details:
I was responsible for remodelling FI flows (general ledger) and CO flows (PCA, CCA et OPA) in BW. Objective was to optimize detail level and data volume to fit end-users requirement.
Enhancement of a BPS application for Customer Loyalty Card planning and remodelling of the web planning interface.
More

Reliance RetailNovember 2006 - January 2007

Full project life cycle.
Context : Greenfield IS-Retail and BW implementation for a starting retail business that now has several thousands point of sales in India (BI7.0, ECC6, POSDM).
Mission Details: My role was to coordinate the new BI team (6 consultants) through a greenfield BW implementation. Objective was to setup a complete reporting tool covering all business flows (procurement, sales, stocks and point of sales) within 5 weeks.
In order to achieve such a quick implementation I had to provide the team with both technical training as well as expertise of the retail industry KPIs.
Specific tasks I handled:
BW customizing (extractors, data modelling, reports creations)
ABAP developments
Enhancement of POSDM standard solution through Badis
Creation of web reports
Project management and team leading
Organisation of technical support processes and SLAs

More

BRICO DEPOTFebruary 2006 - October 2006

Context : Greenfield IS-Retail and BW implementation for a major retailer part of the KingFischer group (BW 3.5, R/3 4.7, POSDM).
Mission Details: Deliver real-time supply chain and financial KPIs based on store data (sales data collected through POSDM) along with a sales planning application for store managers.
Specific tasks I handled:
BW customizing (extractors, data modelling, reports creations)
ABAP developments
Creation of web reports
Creation of sales planning application in SEM-BPS
Customizing of data retraction to IS-Retail
More

ArcelorJuly 2004 - January 2006

Mission Details:
I was responsible for the entire design and development of a cost simulation tool in SEM-BPS used to track primary costs posted to materials through all manufacturing steps.
I was responsible for the entire development of a planing application in SEM-BPS used to track and simulate impact of currency exchange rates on material costs.
Implementation of Inventory reporting and Quality management reporting including related BW data flows (extractors, cubes and reports).
More

RolexFebruary 2005 - June 2005

SEM-BPS consultant, full project life cycle.

Context : Implementation of a corporate financial planing solution for a luxury watches manufacturer (BI 3.0, SEM-BPS).

Mission Details: Objective was to deliver a complete web-based financial planing application with STS workflow and data retraction capability to R/3 for cost centres, internal orders and WBS element budgets (CO and PS module).

Specific tasks I handled:
BW customizing (extractors, data modelling, reports creations)
STS workflow customizing
Creation of web planing applications in SEM-BPS with forecast formulas and asset depreciation calculatio.
More

OrangeFebruary 2004 - June 2004

Context : assist SAP team in multiple evolution projects and daily support (BI 3.0, R/3 4.7 and IS-Retail).
Mission Details:
Propose a Proof of Concept for cross reporting of time sheet and planned activity type in BW.
Creation of Cost centres and Profit centres plan/actual reports.
Create data flow in BW to consolidate inventory information from multiple legacy sources.
4.7 R/3 upgrade

More

HPApril 2002 - February 2004

Context : assist SAP team in multiple roll-outs of procurement processes through several R/3 systems connected via EDI (R/3 4.7).
Mission Details:
I was responsible for project management and coordination of more than 10 roll-outs in various countries (Korea, Switzerland, Australia...)
Roll-outs consisted in local implementation of optimized procurement core model flows, taking into account inter-company billing legal constraints.
More

Compo HorticultDecember 2001 - March 2002

Mission Details:
Assist controller team in day to day financial activities on SAP (period-end closing, reporting), FI-GL

and COCCA customizing and report painter.
More

Futura FinancesNovember 2001 - December 2001

Mission Details: I was responsible for the implementation of Fixed assets (FI-AA) module for a national retailer (150 stores).

My stack

Technologies

Machine Learning, Solr

Others

Data Science, Druid, Data analysis, Analytics

Big Data

Apache Kafka, Big Data, Spark

ERP&CRM

SAP CO, SAP

Languages

Scala, SQL

Multimedia

Director

Databases

NoSQL

Other

Executive stakeholder management, Data Modelling, Apache Cassandra, SAP IS R, Apache NIFI, SAP IS, SAP ABAP OO, SAP ECC, SAP FI, SAP Netweaver > SAP BW, SAP ABAP, S3, IP, French, Developer, Manager, tableau, Demand Management, International Team lead, SAP Freelance consultant, SAP-netweaver- Business, Python Programming, Front Office, English

Business Intelligence

Business Objects, MicroStrategy, Business Intelligence

My education and trainings

Bachelor of Arts, European, Management - University of Westminster

Masters Field Of Study International Business - KEDGE Business School2000 - 2001