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Senior Data Scientist (Availability)

Bulgaria🌐 Remote💼 Full-time🗓 2026-05-27 → 2026-07-31

Core

Lead end-to-end ML projects to solve core domain challenges in rate matching, alternative search, multi-objective optimization, and cache freshness prediction for a B2B travel platform.

Role type

Senior Data Scientist (ML Engineer)

Builds

Production ML models and data pipelines for B2B travel APIs

Domain

TravelTech / B2B APIs

Deliverable

production ML models

Required skills

Machine Learning (Gradient Boosting, Classification, Regression), Entity Matching, Recommendation Systems, Ranking, PySpark, SQL, Python (production code), Airflow

Preferred skills

NLP & Embeddings, Dynamic Pricing, Multi-objective Optimization, Probability Theory, Mathematical Statistics

Technologies

CatBoost, LightGBM, FAISS, KNN, Airflow, PySpark

Responsibilities

Formulate hypotheses and set tasks for ML projects, build robust production data pipelines with Data Engineers, translate business goals into mathematical models, develop and validate machine learning models to improve B2B user experience

Seniority

Senior, hands-on IC

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