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Mariadbplc
Mariadbplc

Senior Data Scientist

datafull-timeRemote - Bulgaria
SALARY
Not listed
WORK TYPE
remote
JOB TYPE
full-time
INDUSTRY
general
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About the role

About the Role

We're hiring a Senior Data Scientist with strong programming skills, a deep command of analytical methods, and the ability to turn complex data into clear business insights. You'll join a small, highly skilled team where your work has a direct impact on how the business operates and makes decisions.

This is a hands-on, high-autonomy role. You'll work across the full data stack-writing sophisticated SQL in BigQuery and MariaDB, building automation and tooling in Python, and leveraging AI-powered tools like Windsurf, Gemini, and Claude to work faster and smarter. You'll be expected to understand how data is structured end-to-end, from source systems through to the warehouse, and to know which analytical approach fits which business question.

You'll also be a key communicator-translating complex data into clear narratives for stakeholders across the organization. We need someone who can operate independently, manage their own priorities, and continuously raise the bar on what's possible with our data. If you have a genuine passion for analytics, a GitHub full of projects, and you're the kind of person who's always learning the next thing-we'd love to hear from you.

Key Responsibilities

  • Apply the right analytical methods-statistical analysis, regression, clustering, forecasting, classification-to solve real business problems at scale
  • Design and build end-to-end analytical solutions-from data extraction in BigQuery and MariaDB to actionable insights and automated reporting
  • Develop and maintain data pipelines, analytical frameworks, and tooling using Python and SQL
  • Use AI-powered development tools (Windsurf, Gemini, Claude, Cursor) to accelerate experimentation, code generation, and analysis
  • Leverage the latest AI features and tools (LLMs, embeddings, generative AI) to augment and automate analytical workflows
  • Build lightweight applications and APIs (FastAPI) to put models and insights into the hands of stakeholders
  • Own the data architecture decisions within your domain-schema design, data modeling, and pipeline reliability
  • Communicate results, trade-offs, and recommendations clearly to both technical and business audiences
  • Map and improve business processes through data-driven analysis and process design

Requirements & Qualifications

  • 7+ years of professional experience in data science, advanced analytics, or a quantitative field
  • Expert-level SQL - deep fluency in BigQuery and MariaDB or similar data platforms; you understand query optimization, partitioning, and data modeling
  • Strong Python and/or JavaScript skills - production-quality code, not just notebooks; experience with modern data and ML libraries
  • Deep understanding of analytical methods - regression, clustering, time series, A/B testing, classification; you know when to apply what and why
  • Solid understanding of data architecture - how warehouses, lakes, and pipelines are designed; how to structure data for both analytical and ML workloads
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