Senior AI Data Engineer - India (Remote, Part-Time)
Welocalize
Apply to this job India remote Until 8/23/2026 First posted September 28, 2025 Last posted September 28, 2025
Job description
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
Compensation: Competitive hourly rate
🔍 Key Responsibilities
- 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).
- 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).
- 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.
- 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).
- Rigorously check each example against quality rubrics (correctness, completeness, clarity, justification).
- Maintain a high standard of accuracy across data, prompts, and visualizations.
📊 Dataset Design & Curation
✏️ Prompt Engineering
📈 Golden Plot Creation
✅ Correctness Criteria & Documentation
🕵️ Quality Assurance
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.
If you're a data expert who thrives on quality, clarity, and impactful engineering, we’d love to hear from you.
About this role
Summary
Design datasets, craft prompts, create visualizations, ensure quality, and document for AI projects.
Job title
Senior AI Data Engineer
Experience level
10+ years
Industry
software
Location requirements
remote, part-time, India-based, flexible hours
Salary
Not specified
Management role
No
Skills & keywords
Required skills
pythondata wranglingvisualizationstatistical testingreproducible workflows
Preferred skills
statisticshypothesis testingstorytelling with datatraining datadeveloper tools
Specializations
data qualityvisualizationprompt engineeringdata modeling
Locations
Structured locations inferred from the posting.
India
Remote Country