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X Development Logo

Senior Applied ML Research Engineer, Early Stage Project

X Development

$165,000 - $238,000
Sep 23, 2025
Mountain View, CA, US
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X is looking to build AI systems that can perform previously impossible tasks or achieve unprecedented levels of performance to make the practice of law radically more efficient and accurate.

Requirements

  • high-performance implementations of machine learning algorithms and productionization
  • Experience translating research concepts or novel techniques into robust, production-ready systems
  • Proficiency in MLOps, including model deployment, versioning and performance monitoring in production environments
  • Strong proficiency in Python and software engineering best practices (testing, designing architectures, version control, etc)
  • Achieved strong results with sophisticated model prompting, and with (at least one of) fine-tuning or applying RL to large language models
  • building AI software and systems for specific industries, either as research publications at top PL or ML venues, or as open source artifact(s)
  • delivering high quality solutions to large, complex software problems

Responsibilities

  • building AI systems that can perform previously impossible tasks or achieve unprecedented levels of performance
  • designing, implementing, and improving models achieving specific tasks
  • writing bug-free machine learning code
  • building the science behind the algorithms employed
  • making targeted contributions and move fast in the work of experimentation
  • translating research concepts or novel techniques into robust, production-ready systems
  • model deployment, versioning and performance monitoring in production environments

Other

  • Act like an owner; be fearless in diving deep, asking questions, proposing solutions, establishing consensus and then making things happen.
  • Work effectively with cross-functional teams of engineers, product managers, and domain experts
  • Provide direction and focus in areas of high ambiguity
  • Enjoy mentoring others and helping the team grow
  • Excel at building strong relationships with stakeholders at all levels