Senior Data Scientist – Search & Recommendations

Location: Remote work from Romania

Company

hirify.global is a technology services company headquartered in Cluj-Napoca with offices in Oradea, delivering software development and managed services for clients in retail, manufacturing, finance, and banking.

What you will do

• Analyze large-scale e-commerce search data to identify trends and improvement opportunities across search, ranking, recommendations, and personalization.
• Investigate query behavior, including zero results, reformulation, abandonment, position bias, click-through rate, and relevance versus business trade-offs.
• Define and interpret search KPIs and evaluate online experiments for ranking, personalization, recommendations, and hybrid or vector search.
• Build end-to-end metrics layers from event-level data and server-side search logs to datasets and visualizations.
• Lead analytical initiatives and collaborate with Product, Data Science, MLOps, and ML/Search Engineering teams.

Requirements

• Strong hands-on SQL and Python skills, particularly Pandas, with solid statistical knowledge and data visualization experience.
• Hands-on experience with e-commerce search funnels, query analysis, ranking analysis, and search relevance metrics.
• Experience defining and interpreting CTR, PDP view rate, add-to-cart, conversion, revenue, and zero-results metrics.
• Experience designing and statistically evaluating machine learning and search experiments across ranking, personalization, and recommendations.
• Experience working with event-level data and server-side search logs at large e-commerce scale.
• Ability to lead senior-level analytical initiatives, collaborate cross-functionally, and use AI tools responsibly to improve productivity and decision-making.

Nice to have

• Experience with GCP, distributed data systems, and analytical databases.
• Knowledge of NDCG, Recall@K, MRR, MAP, information retrieval, recommender systems, or ranking models.

Culture & Benefits

• Inclusive, merit-based workplace focused on diversity, respect, and innovation.
• Medical benefits, gym support, and personalized fitness options.
• Team events and a Healthy Habits Club.
• Flexible work-life arrangements and a hybrid community environment.
• Programs supporting physical, emotional, and social wellbeing.