Senior AI Data Engineer – Chile (Remote, Part-time) – Santiago, Chile

Welocalize is seeking aSenior 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 DetailsLocation: RemoteCommitment: Part-time, flexible hoursThis is a large-scale project with a leading global tech company, with an immediate start and a first delivery in SeptemberCompensation: Competitive hourly rateKey ResponsibilitiesDataset 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 (• Reproduce bolthires 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. Required 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 Apply tot his job