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Senior Platform Engineer, ML Data Systems

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Khan Academy

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Location:
United States, Mountain View

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

137871.00 - 172339.00 USD / Year
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Job Description:

We’re looking for an ML Data Engineer to evolve our eval dataset tools to meet the growing platform needs of AI-based tutoring at Khan Academy. We’re looking for someone who can gather internal requirements, design schema based on well-known dataset patterns, and deploy, document, and train people on an internal dataset management framework. The systems you design will need to integrate with trace management and human labeling APIs. You’ll work closely with other AI engineers, platform developers, and labeling teams to ensure our data is clean, representative, and ready for both human and automated evaluation. This role bridges ML operations, data engineering and data science— enabling our AI systems to learn from reliable, well-structured datasets that reflect the diversity and nuance of real learners.

Job Responsibility:

  • Evolve and maintain pipelines for transforming raw trace data into ML-ready datasets
  • Clean, normalize, and enrich data while preserving semantic meaning and consistency
  • Prepare and format datasets for human labeling, and integrate results into ML datasets
  • Develop and maintain scalable ETL pipelines using Airflow, DBT, Go, and Python running on GCP
  • Implement automated tests and validation to detect data drift or labeling inconsistencies
  • Collaborate with AI engineers, platform developers, and product teams to define data strategies in support of continuously improving the quality of Khan’s AI-based tutoring
  • Contribute to shared tools and documentation for dataset management and AI evaluation
  • Inform our data governance strategies for proper data retention, PII controls/scrubbing, and isolation of particularly sensitive data such as offensive test imagery.

Requirements:

  • Bachelor’s or Master’s degree in Computer Science, Data Engineering, or a related field
  • 5 years of Software Engineering experience with 3+ of those years working with large ML datasets, especially those in open-source repositories such as Hugging Face
  • Strong programming skills in Go, Python, SQL, and at least one data pipeline framework (e.g., Airflow, Dagster, Prefect)
  • Experience with data versioning tools (e.g., DVC, LakeFS) and cloud storage systems
  • Familiarity with machine learning workflows — from training data preparation to evaluation
  • Familiarity with the architecture and operation of large language models, and a nuanced understanding of their capabilities and limitations
  • Attention to detail and an obsession with data quality and reproducibility
  • Motivated by the Khan Academy mission “to provide a free world-class education for anyone, anywhere.”
  • Proven cross-cultural competency skills demonstrating self-awareness, awareness of other, and the ability to adopt inclusive perspectives, attitudes, and behaviors to drive inclusion and belonging throughout the organization.

Nice to have:

  • Experience with labeling platforms (e.g., Label Studio, Scale AI, Toloka) or human-in-the-loop systems
  • Understanding of ML evaluation techniques, including prompt-based and generative model metrics
  • Exposure to MLOps practices such as model registry, feature store, or continuous evaluation
  • Background in education technology or other human-centered AI applications.
What we offer:
  • Competitive salaries
  • Ample paid time off as needed
  • 8 pre-scheduled Wellness Days in 2026 occurring on a Monday or a Friday for a 3-day weekend boost
  • Remote-first culture - that caters to your time zone, with open flexibility as needed, at times
  • Generous parental leave
  • An exceptional team that trusts you and gives you the freedom to do your best
  • The chance to put your talents towards a deeply meaningful mission and the opportunity to work on high-impact products that are already defining the future of education
  • Opportunities to connect through affinity, ally, and social groups
  • 401(k) + 4% matching & comprehensive insurance, including medical, dental, vision, and life.

Additional Information:

Job Posted:
December 09, 2025

Employment Type:
Fulltime
Work Type:
Remote work
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