About Sourav
French
Conversational
English
Native or bilingual
Hindi
Native or bilingual
Experience
- SitInCloudHead of R&D / AI Engineer (CIFRE PhD)January 2024 - Today (2 years and 6 months)Paris, France• • Cybersecurity scale-up — OwlyShield (ransomware detection), OwlyScan (darknet search)• • Lead R&D on AI for cybersecurity products; own model design, training, and integration with production systems.• • Shipped LLM-based teaser generation pipeline (OpenAI API, LangChain) for personalized marketing content, deployed in production.• • Built scalable web crawling infrastructure (Python, Playwright, BeautifulSoup) for darknet data extraction.• • Designed channel-aware embedding strategies for transformer-based multivariate time series forecasting —83% parameter reduction with no loss in accuracy (IEEE ICTAI 2025). • • Developed cross-modal anomaly detection framework (CRAFT) for cybersecurity telemetry; accepted SEC 2026. • • Built generative pipelines (GPT-2, RQ-VAE + autoregressive transformers) for synthetic tabular and time series data, improving downstream malware detector training.
- SitInCloud & ESILVResearch InternApril 2023 - October 2023 (6 months)• • Implemented deep learning models (autoencoders) for ransomware detection from system I/O telemetry; integrated into OwlyShield product pipeline.• • Built malware classification models on system behavior features; co-authored two papers (CRISIS 2024).
- IRIF (CNRS & Université Paris Cité)Research InternApril 2022 - August 2022 (4 months)• • Developed pruning optimizer for deep networks (ResNet, WideResNet) on CIFAR / ImageNet, combined with adversarial training. Supervisor: Dr. Adrian Vladu.
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Education
- PhD, Time Series and LLMsDe Vinci Research Center
- MSc, Data Science and AIUniversité Côte d'Azur2023Optimization, ML, DL , Statistics