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Member of Technical Staff - Data Platform

Reflection· Engineering
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New York, NY, San Francisco, CA, LondonFull-timePosted 7mo ago

About the role

Builds and operates the core data systems and pipelines powering Reflection's research, training, and production environments. Focused on reliable, scalable ingestion and orchestration for batch and streaming workloads, reproducible experimentation, and a unified data layer across the model development lifecycle.

Responsibilities

  • Design ingestion and orchestration patterns for both batch and streaming workloads.
  • Build scalable compute and storage foundations (formats, engines, runtimes) that support large-scale data processing.
  • Ensure reproducible pipelines through versioning, backfills, and isolated execution environments.
  • Provide trusted data quality, lineage, and governance signals so teams can make confident production decisions.
  • Maintain predictable cost and performance through guardrails, budgets, and continuous system tuning.
  • Enable a unified data layer that supports research, training, and production across the model development lifecycle.

Qualifications

  • Strong data engineering background with experience shipping production-grade pipelines at scale.
  • Experience designing and owning end-to-end data systems handling large-scale batch and streaming workloads.
  • Comfortable debugging complex pipeline failures, optimizing for cost and performance, and maintaining data quality.
  • Thrive in a high-agency, fast-paced environment; bias toward action and impact.
  • Excited about zero to one challenges — building new systems rather than maintaining legacy ones.
  • Collaborative, clear communicator, comfortable working across research and infrastructure boundaries.
  • Motivated by creating the trusted data backbone for the world's most capable open-weight AI systems.

Skills

Required:Data engineeringEnd-to-end data systemsDebugging pipelines

Benefits

  • Top-tier compensation: Salary and equity structured to recognize and retain our talent globally.
  • Stock options: Everyone who joins and contributes to Reflection's success gets to share in the upside through stock options.
  • Health & wellness: Comprehensive medical, dental, vision, and life, with an annual wellness allowance.
  • Meals: Lunch and dinner are provided in the office daily.
  • Life & family: 22 weeks paid parental leave for all new birthing and non-birthing parents, including adoptive and surrogate journeys.
  • Vacation days: Unlimited paid time off in the U.S. and 30 days in the U.K.
  • Sponsorship support: We sponsor visas to help exceptional talent join our team and support long-term immigration pathways where applicable.
  • Team building: Regular off-sites, happy hours, and team celebrations.
Last updated Oct 1, 2026. Interested? Apply on the company site.

About Reflection

Building frontier open intelligence

Building frontier open intelligence.

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