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Staff Data Engineer

Tonal

Salary not specified
Nov 19, 2025
San Francisco, CA, US
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Tonal is looking to shape the backbone of their data platform by designing and scaling systems that bring together massive volumes of workout, sensor, and health-related data while ensuring security, reliability, and trust. This role requires a deep understanding of compliance and security standards and the ability to build infrastructure that protects sensitive information while fueling product innovation, AI, and analytics.

Requirements

  • Strong skills in SQL, Python, and distributed data processing (Spark, Databricks, or similar).
  • Experience building pipelines with DBT, Airflow, F Fivetran, or related tools.
  • Background in data modeling and warehousing with systems like Snowflake, Databricks, or Redshift.
  • Hands-on experience working with regulated environments and sensitive data.
  • Familiarity with frameworks such as HIPAA, SOC 2, and NIST for security and compliance.
  • Skilled in access control design, audit logging, encryption, and governance.
  • Experience with fitness, healthcare, IoT, or sensor data.

Responsibilities

  • Architect secure and scalable data systems that support Tonal’s growth and meet regulatory standards.
  • Build and optimize data models and pipelines across diverse sources: sensors, workouts, health integrations, CRM, payments, and content.
  • Establish controls for access, encryption, anonymization, monitoring, and auditability.
  • Define and enforce best practices for managing sensitive data, including PHI and PII.
  • Conduct risk assessments and implement safeguards guided by NIST frameworks.
  • Support SOC 2 audits by documenting and demonstrating effective security controls.
  • Continuously evolve the platform, introducing new tools and frameworks to balance innovation with strong regulatory posture.

Other

  • 8+ years of experience in data engineering, or 6+ years with a Master’s degree (or equivalent).
  • Collaborate with teams across Product, Engineering, Sports Science, and Healthcare to translate needs into compliant solutions.
  • Mentor engineers and scientists, setting high standards for secure data engineering.
  • Excellent communicator who can explain complex tradeoffs to both technical and non-technical audiences.
  • Known for technical leadership and mentoring, raising the bar for engineering quality.