Reflection

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Reflection is a company focused on building open superintelligence and making it accessible to all. The Product Manager will own product development end-to-end, working directly with research teams ...

Our Mission 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.

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Infographic showing various job openings at Reflection in the United States as of May 2026, with employment types broken down into 100% Full Time. Highlights an 100% Physical job distribution.

Member of Technical Staff - Evaluations

Reflection

Manhattan, NY โ€ข On-site

Full-time

Posted 22 days ago


Job description

Job Summary:
Reflection is focused on building open superintelligence and making it accessible to all. The role involves conducting comparative analysis to enhance model capabilities and developing evaluation frameworks that improve model performance through collaboration with various teams.
Responsibilities:
โ€ข Conduct critical comparative analysis to advance our understanding of model capabilities
โ€ข Build and refine evaluation systems and processes that create tight feedback loops between data, evals, and model behavior
โ€ข Develop generalizable evaluation frameworks that capture what matters for reasoning, alignment, and usefulness.
โ€ข Collaborate closely with pre-training, post-training, and applied teams to translate insights into model improvements.
โ€ข Push the boundaries of whatโ€™s measurable, from synthetic evals to human feedback and real-world interaction data.
Qualifications:
Required:
โ€ข Strong statistical analysis and experimental design skills to rigorously measure model improvements
โ€ข Familiarity with LLM evaluation methodologies: static benchmarks, human preference evals, and/or agentic tasks
โ€ข High agency and thrive in a fast-paced startup environment; bias for impact over process
โ€ข Excited to work in a new frontier lab, defining how we measure and accelerate progress toward more capable models
โ€ข Collaborative, detail-oriented, and motivated by building the feedback loops that make models truly improve
Company:
Reflection is an AI lab building frontier open weight models. Our team previously built frontier LLMs at labs like DeepMind, OpenAI, and Anthropic. Founded in , the company is headquartered in New York, NY, US, , with a team of 51-200 employees. The company is currently Growth Stage.