Reflection AI ยท 3 months ago
Member of Technical Staff - Pre-Training
SF
Full-time
Onsite
Mid, Senior LevelReflectionai is focused on building open superintelligence and making it accessible to all. They are seeking a Member of Technical Staff to research and build solutions related to algorithms and model architecture while optimizing training infrastructure and contributing across the entire stack.
Computer Software
Responsibilities
Research and build solutions across algorithms, scaling laws, data processing, optimizers, and model architecture
Design and run scientific experiments to advance our understanding of scaling large language models and data efficiency
Implement state-of-the-art methods from the deep learning literature
Lead small research projects independently while collaborating on larger initiatives
Optimize the training infrastructure for efficient scaling
Contribute across the entire stack, from low-level optimizations to high-level model design
Qualification
Required
Graduate degree (MS or PhD) in Computer Science, Machine Learning, or related discipline
Solid software engineering capabilities with experience building large-scale systems
Experience with large-scale ETL workflows and training data preparation
Deep understanding of large-scale ML, especially as it relates to language models, distributed training, and scaling
Proficient in Python and deep learning frameworks (PyTorch preferred)
Navigate trade-offs between research objectives and practical engineering realities
Thrive in a fast-paced, high-agency startup environment with bias toward action
Strong communication capabilities and comfort working collaboratively
Passionate about advancing the frontier of intelligence
Preferred
PyTorch preferred
Benefits
Comprehensive medical, dental, vision, life, and disability insurance.
Fully paid parental leave for all new parents, including adoptive and surrogate journeys.
Financial support for family planning.
Paid time off when you need it.
Wellness and time-saver stipend.
Commute benefits.
Education stipend.
Relocation support.
Lunch and dinner are provided daily.
Regular off-sites and team celebrations.
Company
Reflection AI
Frontier open intelligence accessible to all. Our team previously built frontier LLMs at labs like DeepMind, OpenAI, and Anthropic.
11-50 employees
H1B Sponsorship
Reflection AI has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (5)
Funding
Current Stage
Early StageCompany data provided by crunchbase