Senior Data Engineer - Mexico (Remote, Part-Time)

Welocalize; México; A distancia; MXN 200,000 - 400,000; A tiempo parcial

Descripción de la vacante

A global data solutions company is looking for a Senior Data Engineer to create datasets and visualizations. Requires over 10 years of experience in data engineering and expert Python skills. The position is part-time and remote, offering flexible hours and competitive pay. Strong attention to detail and quality control are essential.

Formación

• 10+ years of professional experience in data engineering or applied data science.
• Expert-level proficiency in data wrangling and visualization.
• Deep understanding of prompt crafting and reproducible workflows.

Responsabilidades

• Design and build datasets for varying complexity levels.
• Write concise prompts for business analysts.
• Reproduce target visualizations with fidelity.

Conocimientos

Expert-level proficiency in Python

Data modeling

Quality control

Attention to detail

Herramientas

pandas

matplotlib

seaborn

plotly

Descripción del empleo

Overview

Welocalize is seeking a Senior Data Engineer with world-class Python expertise and a sharp eye for data quality, engineering rigor, and visualization fidelity. In this role, you will create realistic datasets, write intuitive prompts, and develop high-quality “golden plots” to power insightful data tasks. You'll bridge technical precision with real-world plausibility—crafting examples that meet strict quality rubrics and correctness criteria.

Role Details

Location: Remote

Commitment: Part-time, flexible hours

This is a large-scale project with a leading global tech company, with an immediate start and a first delivery in September

Compensation: Competitive hourly rate

Responsibilities

• Dataset Design & Curation
  • Design and build realistic toy/dummy datasets at varying complexity levels (simple, moderate, complex).
  • Ensure datasets reflect real-world scenarios while remaining clean, reproducible, and well-structured (CSV format).
• Prompt Engineering
  • Write concise, natural-language prompts (<40 words) tailored for business analysts.
  • Ensure prompts are grammatically precise and align with project style (non-technical, not overly directive, no raw metric requests).
• Golden Plot Creation
  • Reproduce target visualizations with aesthetic and analytical fidelity.
  • Write clean, reproducible Python code using libraries like pandas, matplotlib, seaborn, and plotly.
  • Maintain high-quality code standards: well-commented, organized, and reproducible.
• Correctness Criteria & Documentation
  • Define correctness criteria tailored to open-ended insight prompts.
  • Ensure criteria are flexible, accurate, and avoid assuming fixed solutions.
  • Provide supporting documentation with expected values and metrics (e.g., means, correlations, test results).
• Quality Assurance
  • Rigorously check each example against quality rubrics (correctness, completeness, clarity, justification).
  • Maintain a high standard of accuracy across data, prompts, and visualizations.

Qualifications

• 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.

Preferred Qualifications

• Experience with statistics, hypothesis testing, and storytelling with data.
• Background in producing training data, developer tools, or reproducible research.
• Strong writing skills for crafting precise prompts and correctness criteria.

Disclaimer

• Please note: As this opportunity is intended for experienced professionals, applicants will be required to complete both an English proficiency assessment and a Python skills test. These evaluations are designed to ensure the necessary level of expertise for the role. We kindly ask that only those with relevant experience apply.

If you\'re a data expert who thrives on quality, clarity, and impactful engineering, we’d love to hear from you.