Technical Staff, Data - SF

US.svg
United States
Location
Remote in
United States
San Francisco
Compensary
Undisclosed
Category
Data Engineer
Date posted
June 12, 2025
Job type
Full-time
Experience level
Mid level

Role Overview:


Data quality and diversity is the foundation for training the best agents in any domain. As a member of the Data Team at Reflection, you will play a pivotal role in shaping how we collect and analyze human, synthetic, and internet data. This is an interdisciplinary role that primarily requires engineering, research, and communication skills, along with a sharp attention to detail and willingness to “roll up your sleeves” and look at the data.

Key Responsibilities

1. Experiment and Benchmark Design

  • Develop techniques for collecting, augmenting, filtering, or synthesizing training and evaluation data using creativity and analytical thinking

  • Design experiments, in collaboration with machine learning researchers, to assess the impact of different datasets on model performance

  • When required, manage human annotators working on data collection efforts – this could include tracking payments and hours, training annotators, and providing technical support, feedback, and quality control

2. Qualitative and Quantitative Data Analysis

  • Analyze collected data, e.g. coding tasks, both qualitatively and quantitatively

  • Evaluate model behavior to identify its strengths and weaknesses

  • Clearly communicate findings with machine learning research and product teams

3. Data Engineering

  • Design, implement, and optimize scalable data pipelines to support reinforcement learning and supervised finetuning

  • Leverage LLMs to perform data filtering, cleaning, and augmentation

Qualifications:

  • Software engineering background with experience building data processing pipelines at scale, particularly with LLM integration 

  • Proficiency in Python or other programming languages (Go, TypeScript, etc.)

  • Detail-oriented and analytical, with the ability to conduct careful qualitative and quantitative data analysis.

  • Excellent organizational and communication skills to collaborate closely with cross-functional teams and manage human data operations

  • Experience with machine learning, reinforcement learning, and LLMs is a plus, but not strictly required.

What We Offer:

  • The opportunity to work at the forefront of AI research and data collection for training cutting-edge models.

  • Collaboration with a team of world-class researchers and engineers from top AI labs and companies.

  • Competitive compensation and benefits, with opportunities for professional growth.

Companies size
1-10
employees
Founded in
2024
Headquaters
Paris, France
Country
France
Industry
Software Development
Social media
Visit website

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