Welocalize

Senior Data Engineer

Welocalize

part-time

Posted on:

Origin:  • 🇹🇷 Turkey

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Job Level

Senior

Tech Stack

PandasPython

About the role

  • Design and build realistic toy/dummy datasets at varying complexity levels (simple, moderate, complex) in CSV format
  • Write concise, natural-language prompts (<40 words) tailored for business analysts and aligned with project style
  • Reproduce target visualizations with aesthetic and analytical fidelity using Python (pandas, matplotlib, seaborn, plotly)
  • Write clean, reproducible, well-commented Python code and maintain high-quality code standards
  • Define correctness criteria and provide supporting documentation with expected values and metrics (e.g., means, correlations, test results)
  • Rigorously check each example against quality rubrics (correctness, completeness, clarity, justification)
  • Collaborate within the Data Validation team on large-scale project deliverables for a global tech company

Requirements

  • 10+ years of professional experience in data engineering or applied data science
  • Expert-level proficiency in Python (data wrangling, visualization, statistical testing)
  • Deep understanding of data modeling, prompt crafting, and reproducible workflows
  • Exceptional attention to detail and quality control
  • Proven success in high-impact technical environments
  • Experience with statistics, hypothesis testing, and storytelling with data (preferred)
  • Background in producing training data, developer tools, or reproducible research (preferred)
  • Strong writing skills for crafting precise prompts and correctness criteria
  • Willingness to complete English proficiency assessment and a Python skills test
  • Immediate availability for an immediate start and first delivery in September