Brainco
Machine Learning Engineer, Applied AI Co-Op Intern, Winter 2027
San Francisco Bay Area · Intern · Internship
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About the role
- Joining now means shaping both the company and a new category of applied AI.
- You'll work alongside exceptional peers on some of the hardest problems in applied AI.
- It's the kind of work you'll still be proud of in ten years from now.
Responsibilities
- Build and improve data pipelines and support model training, evaluation, and optimization
- Work with structured and unstructured data (e.g., text, documents, logs)
- Collaborate closely with senior engineers, AI researchers, and product teams
- Learn best practices through code reviews, design discussions, and hands-on mentorship
- Enjoy owning problems end-to-end with guidance and support
- Brain Co. builds AI-native operating systems for large, regulated institutions.
- Every project here ships to production and is expected to create measurable customer value and impact.
- This internship is designed for current undergraduate students (juniors and seniors) who want hands-on experience applying modern AI techniques-especially large language models-to real-world challenges.
Compensation
- Competitive co-op compensation
Benefits
- Opportunity to work on real production systems used globally
- Are a current undergraduate student, specifically a junior or senior, pursuing a degree in Computer Science, Machine Learning, Data Science, or a related field
- Have coursework or project experience in machine learning or AI
Company info
- Rebuild how the world works, to make institutions work better for the people they serve.
- ABOUT BRAIN CO.
- Each system is built for a specific industry, powered by agents that push real workflows forward.
- Underneath it all is Atlas, our proprietary platform that keeps customers in control, secure by design, and never locked into one model.
- Brain Co. is entering its next phase of production deployments on a national scale with an elite team built from Palantir, Google, Meta, and Nvidia, and a growing footprint across government, insurance, health, and financial services.
- As an AI/ML Engineer Co-op Intern, you'll work alongside experienced engineers and researchers to help design, build, and deploy machine learning systems that solve high-impact problems in healthcare, government, and energy.
- You'll gain exposure to the full ML lifecycle while receiving mentorship and ownership over meaningful projects.
This listing is sourced directly from Brainco's careers page and normalized into a canonical job model.