Data Science Team Lead - Real-Time Pricing & Pipelines

Fetcherr; Warszawa; On-site; PLN 300,000 - 520,000; Full time

Job summary

Fetcherr in Warsaw seeks an experienced Data Science Team Lead to guide data science and data engineering efforts. You will mentor a team of data scientists and engineers, own the data architecture, and accelerate real-time pricing and large-scale data pipelines.

You will lead architecture decisions, ensure data quality and observability, and collaborate with product and business stakeholders to translate complex models into actionable pricing strategies that drive revenue growth.

Qualifications

• 3+ years of proven experience leading data science / data engineers (people management required).
• 4+ years of experience in data science, with strong Python programming, advanced SQL, and data modeling experience.
• Proven experience designing and maintaining large-scale data platforms.
• Expertise with data orchestration tools (Airflow, Prefect, or Dagster).
• Cloud platform experience — GCP preferred (AWS/Azure acceptable).
• Strong communication, mentorship, and collaboration skills.
• BSc/MSc in Mathematics/ physics/ statistics/ Computer Science.
• Fluent English (spoken and written).

Responsibilities

• Manage a team of data scientists and data engineers responsible for building robust, scalable, and high-performance data pipelines and infrastructure.
• Analyzing existing models and algorithms, researching for new approaches in price optimization.
• Design, build and maintain distributed data processing workflows (batch & streaming).
• Drive best practices for data quality, validation, testing, and observability.
• Own and evolve Fetcherr’s data architecture in alignment with business and product goals.
• Manage sprint planning, task breakdown, code reviews, and performance feedback for your team.
• Contribute hands-on to key development tasks and architecture decisions.
• Recruit, mentor, and grow the data science engineering team.

Skills

People management

Python

SQL

Data modeling

Data pipelines

Airflow

Prefect

Dagster

GCP

AWS/Azure

Communication

Mentoring

English

Education

BSc/MSc in Mathematics/ Physics/ Statistics/ Computer Science

Tools

Docker

Apache Beam

Spark

BigQuery

Dataflow

CI/CD (GitHub/GitLab)

Job description

Fetcherr in Warsaw seeks an experienced Data Science Team Lead to guide data science and data engineering efforts. You will mentor a team of data scientists and engineers, own the data architecture, and accelerate real-time pricing and large-scale data pipelines.

You will lead architecture decisions, ensure data quality and observability, and collaborate with product and business stakeholders to translate complex models into actionable pricing strategies that drive revenue growth.