Senior Data Scientist (Look-2-Book)

Location: Remote, hybrid, or onsite; available locations are Portugal, Kazakhstan, Montenegro, Cyprus, Georgia, and Thailand

Company

hirify.global is a global travel-tech company developing online booking platforms for travelers, travel agents, and business-travel companies.

What you will do

• Own machine learning projects end to end, from hypothesis formulation and task definition to production delivery and measurable business impact.
• Build scoring models that predict search-to-book conversion and model how conversion likelihood changes with price and availability.
• Develop multi-objective optimization solutions balancing margin, profitability, operational incidents, and B2B client preferences.
• Predict cache freshness to balance offer accuracy, response speed, and system load.
• Collaborate with Data Engineers on production pipelines and with Data Analysts on metrics, business context, and A/B tests.
• Develop, train, validate, test, and deploy models that improve the B2B user experience.

Requirements

• At least 4 years of hands-on experience as a Data Scientist or ML Engineer.
• Strong classic machine learning skills, including gradient boosting with CatBoost or LightGBM, classification, and regression.
• Experience with entity matching, recommendation systems, and ranking approaches such as KNN, FAISS, and pointwise, pairwise, or listwise learning-to-rank.
• Excellent SQL skills and practical experience processing massive datasets with PySpark.
• Production-quality Python development, testing, and experience bringing models to production with Airflow and Python microservices.
• Ability to translate business objectives into clear machine learning tasks and identify root business problems.

Nice to have

• Experience in TravelTech, e-commerce, or B2B APIs, including hotels, rates, or distributors.
• Knowledge of NLP, text embeddings, and matching textual rate descriptions, room types, or cancellation policies.
• Experience with dynamic pricing, multi-objective optimization, or Next Best Action systems.
• Strong foundations in probability theory and mathematical statistics.

Culture & Benefits

• Flexible working hours focused on results rather than a fixed 9:00 AM start.
• Choice of fully remote, office-based, or hybrid work.
• Internal adaptation, training, soft-skills, and leadership-development programs.
• Partial compensation for external training and conferences.
• English lessons, individual and group classes, and speaking clubs.
• Corporate prices for hotels and travel services, plus an additional MyTime Day Off supporting health and work-life balance.