Data Science Specialist (Mid) (Ref:rrE8F)

An exciting opportunity to join our client's team at a leading media and entertainment company in Central and Eastern Europe. We are looking for a Data Science Specialist (Mid) to join this organization.

Responsibilities

A) Build & expand predictive/analytics tools modules:

• Implement new decision pages and reusable metrics.
• Add analysis angles from the existing backlog.
• Translate analytics into action outputs.

B) Take over & improve existing deliverables:

• Operationalize lifecycle segments/personas/churn outputs
• automated refresh, drift checks, and QA.
• Improve the existing churn model and upgrade personas.

C) Measurement & experimentation:

• Partner with CRM/Marketing on measurement of interventions (email campaigns, triggered messages).
• Build a practical evaluation framework: holdouts, A/B test design support, uplift, etc.

D) Work closely with Data Engineering

• Write production-friendly SQL.
• Help define data contracts for key marts used by tools and models.

Requirements

• Must-have skills
• Solid ML foundations
• classification, clustering, validation, leakage prevention, feature engineering.
• Strong Python (pandas, numpy), clean coding practices, and ability to ship maintainable notebooks/scripts (GIT).
• Strong SQL (joins, window functions, incremental logic; comfortable reading complex transformations).
• Comfortable with product analytics and causal thinking basics (A/B tests, cohorts, retention curves).
• Prompt engineering (hands-on): Ability to design, iterate, and evaluate prompts for real business outputs.
• Ability to explain results to non-technical stakeholders
• Nice-to-have:
• Familiarity with recommendation systems evaluation (top N metrics, coverage/diversity, cold-start).
• Exposure to Cloud Data Lake (Bigquery, Databricks, Snowflake), dbt, Airflow concepts (even if not deep).
• Streamlit / dashboard building or strong SW development experience.
• Any experience with embeddings/metadata or vector similarity is a plus.
• Agentic AI experience: Familiarity with agentic workflows (LLMs that use tools) to automate parts of analytics/ops. Experience with concepts like tool use, memory/state and RAG is a plus.

In addition to the salary, the company offers the following benefits

• Medical Plan
• Access to premium healthcare services with options to include family members.
• Hospitalization Insurance: Coverage through Groupama for peace of mind during unexpected medical events.
• Employee Assistance Program (EAP): Confidential support for personal and family challenges.
• On-site Massage: Relax and recharge at work.
• Meal Vouchers
• Holiday Vouchers
• Volunteering Days: 4 paid days to give back to the community.

What is RSight®

RSight® is a next-generation recruitment solution, committed to the values of fairness, transparency, and human-centric hiring. RSight® aims to redefine recruitment, putting people and potential at the heart of every opportunity.