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stephane rohmer

Makes your data speak

stephane rohmer
49 years old
Toulon (83000) France
Professional Status
Employed
Available
About Me
I consider myself as a data enthusiast. I have been immersed into an unbounded technical environment for a year. I am keen to help you out with your data and give the insight you need.
Resume created on DoYouBuzz

Data Scientist

Orange
Since August 2018
  • Tuning of machine learning algorithmes for anomalies detection and automatic suggestion of corrections (clustering, svm, classifiers)
  • Build of a Qlik dashboard for full monitor of network deployement (quality of service, efficiency of subcontractors, followup of spare parts usage and inventory)
  • Data clean up and embedding in order to perform a better tuning of algorythm and better forecast of delivery time and spare parts consumption
  • Forecast of the end of life of a product sold by Valeo.
  • 14000 references automatically clustered with spectral algorithm, optimized entropy
  • 14000 time series analyzed and processed with kalman filter
  • benchmark of predictive algorithms:
    linear regression, support vector machine, neural network (MLP)
Company Description
Leader of car-parts industry - Aftermarket Supply chain department
  • Big Data related: development of an application that predicts weather contingencies and operation duration based on 18 years of weather records history and safety working limits. Parameters taken into account: wind speed, wind direction, wave hight, wave direction, curent strength and direction.
  • Offshore management of lay and repair operation of submarine cable
  • Involved on bids in reponse to calls for tenders mainly on risk analysis and operationnal planning
  • Accountable for the high availability of the submarine remote operating vehicle, and all jointing and testing equipment.
  • Work in multicultural environment (Japan, Norway, UK, Germany, USA, Turkey, Greece, Indonesia, Morocco, South Africa ...)
  • Achievements:
    96% of operation within scheduled time
    4.6/5 is my average rating by customers
  • Project Owner of the main tool that describes the wired network of Orange France. That tool was directly used by more than 3 000 users daily and it was interfaced with more than 150 other applications
  • Management of the merging of two huge datasets into one single tool that describes exhaustively the wired network of Orange.
  • Business Plan: highlight business opportunity, accountable of ROIC of IT investment.
    Yearly Budget management > 2 millions euros
  • Improvement of Network and Platform supervision tools. Put in place data flow aggregator and alarm correlation system. Reduction from 48 to 2 supervision -interfaces
  • Change Management: set training and communication plans
  • Roadmap evolution: manage according to finance, time and technical constrains the product roadmap.
  • Increasing user satisfaction (from 40% to 85%) mainly on HMI improvement, and service availability
  • deployement of tools for realtime monitoring of TVoIP.
    150 TV streams over 5000 dslam on real time monitoring
  • Management of the test bed, availability, interconnexion and compatibility, test for commissioning new releases or investigation of problem on life network
  • Integration specification and test strategy writing in order to implement vendor specific tools to Orange Supervision Network
  • High expertise on the use of network protocol analysis probes.
  • Adaptation of test strategy and its optimization in order to match time requirement. I succeed in mutualizing some of the acceptance and integration test, and improving automatisation.
  • Configuration Management
  • Fault Management
  • Performance Management
  • Integration of supervision tools based on protocol Analysis
  • Definition of indictors based low level protocol messages. Early adopter of the solution, we brought a lot of the Network Operator knowledge. The indicators I drew served QoS analysis, Fault detection, Marketing purpose, and Fraud detection.