Reflection ai

Reflection ai

Reflection is building a company-wide foundations platform to accelerate every engineering team by providing reliable, scalable developer infrastructure, SRE capabilities, and high-throughput data ingestion tooling. This team builds and operates the core platform layer that all engineering teams depend on, defining opinionated golden paths for cloud infrastructure, networking, and access patterns. The goal is to ensure engineers can ship quickly and safely without sacrificing reliability, security, or cost predictability, enabling the development of open foundational models.

Reflection ai

Reflection is a research lab dedicated to making intelligence open and accessible. We build open models that empower users to control their intelligence and shape the future of AI. As a Member of Technical Staff - Safety, you will be instrumental in ensuring the safety and reliability of our AI models. This role involves owning the red-teaming and adversarial evaluation pipeline, translating safety findings into concrete guardrails, and validating that every release meets our risk thresholds before deployment. You will develop scalable, automated safety benchmarks and research state-of-the-art jailbreaking techniques and defenses to proactively address potential vulnerabilities.

Reflection ai

Reflection is a research lab dedicated to making intelligence open and accessible. As a member of the Data Team, you will ensure the data used to train our models meets high standards for quality, reliability, and impact. You will work closely with world-class researchers on pre-training teams to translate abstract notions of "good data" into measurable standards for large-scale data campaigns. This role requires a blend of strong engineering fundamentals and a deep curiosity about data quality's influence on model performance.

Reflection ai

Reflection is a research lab dedicated to making intelligence open and accessible. As a member of the Data Team, you will ensure the data used to train and evaluate our models meets high standards for quality, reliability, and impact. You will work closely with world-class researchers on post-training teams to translate abstract notions of "good data" into concrete, measurable standards that scale across large data campaigns. This role requires engineers who combine strong engineering fundamentals with a deep curiosity about data quality and its impact on model behavior.

Reflection ai

Reflection is a research lab dedicated to making intelligence open and accessible. We build open models that empower individuals to control their intelligence and shape the future of AI. In this role, you will be instrumental in advancing AI innovation by focusing on data, which is critical for developing capabilities like agentic tool use, long-horizon reasoning, and robust safety alignment. You will collaborate with world-class researchers to design and implement our data strategy, directly influencing the performance of our AI models.

Reflection ai

Reflection is a research lab dedicated to making intelligence open and accessible. We are seeking a core member for our Applied AI team to lead Forward Deployed Engineering efforts with enterprise customers. This role involves translating advanced AI research into high-impact, real-world applications, owning the technical strategy and delivery of agentic systems from discovery to production launch.

Reflection ai

Reflection is a research lab dedicated to making intelligence open and accessible for everyone to use, customize, and build on. We are building open models that empower individuals to control their intelligence and shape the future of AI. As a Member of Technical Staff - Evaluations, you will play a critical role in advancing our understanding of model capabilities through rigorous analysis and by building and refining evaluation systems. Your work will create tight feedback loops between data, evaluations, and model behavior, leading to tangible model improvements.

Reflection ai

Reflection is a research lab dedicated to making intelligence open and accessible. We are seeking an exceptional technical leader to build and scale our post-training and evaluation capabilities within the Applied AI team. This role involves taking our open-weight models and adapting them for specific customer domains, tasks, and constraints. You will own the end-to-end technical strategy for model customization, from synthetic data generation and reward modeling through training and production deployment, working directly with customers and research teams.

Reflection ai

Reflection is a research lab dedicated to making intelligence open and accessible for everyone. We build open models that empower individuals to control their intelligence and shape the future of AI. As a Member of Technical Staff - Pre-Training, you will be instrumental in researching and building solutions across algorithms, scaling laws, data processing, optimizers, and model architecture. This role involves designing and executing scientific experiments to deepen our understanding of scaling large language models and data efficiency, while also implementing state-of-the-art deep learning methods. You will have the opportunity to lead small research projects independently and contribute to larger initiatives, optimizing training infrastructure for efficient scaling and working across the entire stack from low-level optimizations to high-level model design.