ReflectionAI

ReflectionAI

Member of Technical Staff - Research Software Engineer

New York · Staff+

H1B sponsorship availableDetected 132 days ago
Distributed SystemsAlgorithmsKubernetesMachine LearningPyTorchData EngineeringResearchCommunication

About the role

  • This includes RL training loops, distributed GPU systems, and large-scale data pipelines.
  • You will work closely with researchers to transform new ideas into reliable, scalable training systems.
  • Designing and optimizing large-scale training loops and data pipelines.

Responsibilities

  • Reflection is a research lab making intelligence open and accessible for everyone to use, customize, and build on.
  • We build open models that let anyone control their intelligence and help shape the future of AI.
  • Sponsorship support: We sponsor visas to help exceptional talent join our team and support long-term immigration pathways where applicable.
  • Team building: We have regular off-sites, happy hours, and team celebrations.
  • Joining Reflection means building from the ground up as part of a talent-dense team.

Requirements

  • You have deep experience in at least one of the following: Distributed Training & Inference or Data Infrastructure

Skills

  • Distributed data processing frameworks

Compensation

  • Salary and equity structured to recognize and retain our talent globally.
  • Health & wellness: Comprehensive medical, dental, vision, and life, with an annual wellness allowance.

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.
  • 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.

Company info

  • make intelligence open and accessible to all.
  • Bridge the gap between research and production by turning cutting-edge algorithms into scalable training systems.
  • You will design and optimize the core infrastructure behind frontier AI models - from reinforcement learning training loops and distributed GPU training to massive-scale data pipelines.
  • Our systems train models across thousands of GPUs and process petabyte-scale datasets.
  • We care deeply about numerical stability, throughput, and reproducibility.
  • This team owns and evolves the core infrastructure behind our training systems.
  • We focus on:
  • Reinforcement learning training infrastructure
  • Distributed training and inference systems
  • Experiment infrastructure and reproducibility
  • Large-scale data pipelines
  • The goal is to build the engineering foundation that allows researchers to iterate quickly while training models at massive scale.
  • Machine learning algorithms
  • Distributed systems
  • High-performance computing
  • You care deeply about performance, numerical stability, and reproducibility.
  • You thrive in high-agency environments and enjoy solving hard technical problems.

Visa & Work Authorization

  • We sponsor visas to help exceptional talent join our team and support long-term immigration pathways where applicable.

This listing is sourced directly from ReflectionAI's careers page and normalized into a canonical job model.