About Alexandra
French
Fluent
English
Fluent
Russian
Native or bilingual
Spanish
Conversational
Experience
- LittleBigCodeData ScientistJanuary 2020 - Today (6 years and 5 months)
- ACCORProduct Manager & Data ScientistHOSPITALITYAugust 2021 - Today (4 years and 10 months)Paris, FranceWorked closely with product, design, and marketing stakeholders to align model output with business goals across multiple projects.______________________________________________________________________POC: Hotel Review Tagging & Sentiment Analysis – Internal NLP SystemRequested by Accor’s marketing and product teams to track guest satisfaction at scale• Ledthereplacementofabiasedthird-partytaggingsolution,aligning stakeholders on an in-house strategy to improve transparency and reduce licensing costs.• Deliveredatransformer-basedNLPpipelineacross110hotelfeatures, increasing tag coverage by 9× and enabling configurable sentiment scoring.• ShippedaStreamlitdashboardformarketingtoexploretaginsightsand hotel benchmarks; proposed trend alerts to surface shifts in guest sentiment.____________________________________________________________________Personalised Travel Recommendation Engine – Internal Recommender SystemDeveloped to tailor destination suggestions across Accor’s direct-booking platform and marketing emails• Built and deployed a recommendation system based on guest preferences and booking history, designed to handle sparse user data.• Integratedwithcloudinfrastructureforscalableretrainingandreal-time targeting across email and platform channels.• ConductedA/Btestingon5,000+users,resultingina5%liftin click-through rate on targeted suggestions.____________________________________________________________________Automated Visual Quality Control for Hotel Imagery – Internal CV SystemDeveloped for Accor’s global marketing and brand teams• Automatedreviewof5K+hotelimages,reducingvalidationtimeby70%.• Improvedtherateofhigh-qualityimagesfrom91%to98%throughautomated enhancement techniques.• DeliveredaPowerBIdashboardforregionalcompliancemonitoring.
- SNCF RéseauData Scientist & EngineerJuly 2020 - July 2021 (1 year)Paris, FranceDigitisation of Safety Documents – Internal Processing ToolDeveloped for on-site technicians and safety teams to improve data access and entry• Developed an OCR pipeline to extract structured tabular data from scanned PDFs, processing 1,000+ documents and extracting 1M+ technical elements with over 90% accuracy.• Replacedmanualdataentry,targetingan80%reductioninprocessingtime; delivered measurable time savings for operations teams under real usage constraints.• BuiltanddeployedDjango-basedmicroservicesfordocumentupload, extraction, and web monitoring, supporting live batch processing in production.Mastered: Tesseract, OpenCV, Git, Django, Air Flow, Pytest, Power BI, Grafana, NCF
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Education
- M.Sc. of NeuroscienceEcole Normale Supérieure2019M.Sc. of Neuroscience
- B.Sc, Physics and Applied MathematicsMoscow Institute of Physics and Technology (State University) (MIPT)2015B.Sc, Physics and Applied Mathematics