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Reflection’s mission is to build open superintelligence and make it accessible to all.
We’re developing open weight models for individuals, agents, enterprises, and even nation states. Our team of AI researchers and company builders come from DeepMind, OpenAI, Google Brain, Meta, Character.AI, Anthropic and beyond.
Role Overview:As a member of the technical staff focused on infrastructure at Reflection you will lead the development of a world-class AI research platform, enabling scalable and efficient language model and reinforcement learning training and inference. You will design and implement infrastructure capable of scaling across large GPU clusters and create production-ready inference solutions for cutting-edge AI models. This role offers the opportunity to shape the foundational infrastructure that powers the next generation of AI systems.
Key Responsibilities:Build and optimize large-scale, high-performance AI research infrastructure for Reinforcement Learning (RL).
Develop scalable training platforms capable of leveraging tens of thousands of GPUs.
Create efficient inference solutions, including vLLM-like platforms for non-LLM models and production-ready serving systems.
Collaborate with research teams to align infrastructure capabilities with experimental needs and goals.
Maintain a strong focus on performance, scalability, and reliability in all infrastructure components.
Extensive experience building large-scale, high-performance solutions in the AI or software engineering domain.
Proficiency in high-performance programming languages such as C++ or Rust.
Proven experience building infrastructure at top AI or technology companies.
Strong understanding of distributed systems, GPU acceleration, and scalable architectures.
A passion for advancing the state of AI research and its real-world applications.
We believe that to build superintelligence that is truly open, you need to start at the foundation. Joining Reflection means building from the ground up as part of a small talent-dense team. You will help define our future as a company, and help define the frontier of open foundational models.
We want you to do the most impactful work of your career with the confidence that you and the people you care about most are supported.
Top-tier compensation: Salary and equity structured to recognize and retain the best talent globally.
Health & wellness: Comprehensive medical, dental, vision, life, and disability insurance.
Life & family: Fully paid parental leave for all new parents, including adoptive and surrogate journeys. Financial support for family planning.
Benefits & balance: paid time off when you need it, wellness and time-saver stipend, commute benefits, education stipend, and relocation support.
Opportunities to connect with teammates: lunch and dinner are provided daily. We have regular off-sites and team celebrations.
