About the role#
We are looking for an ML Engineer Intern to join our team in San Francisco. You will work directly with our founders to research, train, and ship models that power our core intelligence layer. Our platform processes hundreds of millions of professional profiles and company records, and you will be responsible for turning that raw data into structured insights. This is a full-time, on-site role for Summer 2027.
What you'll do#
- Research, train, and ship models from prototype to production.
- Solve ML problems to convert web-scale data into structured intelligence.
- Return accurate search results for professional titles across multiple languages.
- Resolve entity records across millions of entries.
- Infer organizational charts from raw people data.
- Detect company technologies based on unstructured web signals.
- Classify job transitions and map raw job titles to canonical titles, seniority levels, and job functions.
What you'll need#
- Currently pursuing a Master's or PhD in Computer Science, Machine Learning, NLP, or a related field.
- Strong fundamentals in NLP, information retrieval, or entity resolution.
- Familiarity with transformer architectures.
- Experience building retrieval systems, classifiers, or embedding models.
- Exposure to contrastive learning, metric learning, or representation learning.
- Experience using LLMs for structured extraction, classification, or data generation.
- Strong Python and PyTorch skills.
- A grinder with a founder mentality.
- Bonus points for published research, experience with entity resolution at scale, taxonomy development, multilingual NLP, open-source contributions, or distributed training on GPU clusters.
Location & details#
- Location: San Francisco, California.
- Term: Summer 2027.
- Modality: On-site.
- Sponsorship: Available.
- Compensation: Paid internship.
About Crustdata (YC F24)
Crustdata provides real-time company and people data through APIs and webhooks. The firm supports developers building AI agents for sales, recruitment, and investment platforms. Founded in 2024, the company operates out of San Francisco. It employs 42 people and maintains a team size between 11 and 50 staff members.
How to get in at Crustdata (YC F24)
Applying early to Crustdata gives you a distinct advantage before the candidate pool becomes unmanageable. Intern Insider sends an instant alert the moment a role matching your target is published anywhere, so you apply among the first, early applicants get seen before the pile grows. It is a simple way to stay ahead of the competition during the recruitment cycle. You can also improve your chances by reaching out to the right people. Intern Insider surfaces the recruiters behind the company's roles so you can reach out directly to ask about the role or a referral, which materially improves response rates. Direct outreach often provides more clarity than a standard application.
