Jobs / United States / William Blair Company LLC
Working in Technology (WiT) Data Science - Summer 2027
William Blair Company LLC · 🇺🇸 Chicago, Illinois, United States
Sponsorship verdict
Sponsorship possible
One solid signal, not two — worth applying, and worth asking about sponsorship early.
- Employer is on a government sponsor recordThe US Department of Labor certified 13 H-1B/E-3 labor condition applications for this employer between Oct 2025 and Jun 2026 (latest Jun 2026) — the step every H-1B hire needs first. USCIS also records 3 H-1B approvals in FY2023. Source: LCA disclosure data (US Department of Labor (OFLC)).
- The posting doesn’t mention sponsorshipSilence isn’t a refusal — ask the recruiter before investing much time.
- No salary bar for this routeH-1B has no fixed salary bar: the employer must pay at least the prevailing wage for the role and area. Cap-subject employers enter a lottery weighted by wage level. Source: https://www.federalregister.gov/documents/2025/12/29/2025-23853/weighted-selection-process-for-registrants-and-petitioners-seeking-to-file-cap-subject-h-1b, rules effective 2026-02-27.
- What William Blair Company LLC paid sponsored hires in similar roles1 certified filing for “Data Scientist” (Data Scientists) in IL: $130k–$130k, median $130k. Most were filed at wage level II (100%) — 2 lottery entries, ≈31% projected selection odds for cap-subject employers. Source: US Department of Labor LCA disclosure data (Oct 2025 – Jun 2026).
- Confirmed live todayWhen a source last listed this job as open.
US H-1B: cap-subject employers enter a lottery weighted by wage level — Level I gets 1 entry, Level IV gets 4 (DHS projected selection odds ≈15% at Level I to ≈61% at Level IV). Universities and non-profit research employers are cap-exempt. The $100,000 fee for new petitions from abroad is currently blocked by a court order (appeal pending).
A verdict summarises public evidence; it is not legal advice and never a guarantee — the employer and the immigration authority decide. Sign in to factor in where you can already work.
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Sponsor Radar — William Blair Company LLC
The US Department of Labor certified 13 H-1B/E-3 labor condition applications for this employer between Oct 2025 and Jun 2026 (latest Jun 2026) — the step every H-1B hire needs first. USCIS also records 3 H-1B approvals in FY2023. Source: LCA disclosure data (US Department of Labor (OFLC)).
Past sponsorship or register membership never guarantees sponsorship for this vacancy or for you. Full Sponsor Radar for William Blair Company LLC →
About the role
Solutions for Today’s Challenges. Vision for Tomorrow’s Opportunities. Join William Blair, the Premier Global Partnership. William Blair is seeking graduate students to join our innovative technology team for a 12-week internship program during the summer of 2027. The program is designed to promote technology careers among high performing individuals from underrepresented backgrounds in the technology field, including but not limited to women currently enrolled, or intending to enroll, in a technology-related academic program. Selected participants will have a unique opportunity to explore areas of statistical analysis, machine learning, deep learning, generative AI, data science, data visualization, and data engineering while supporting mission-critical business use cases. The summer program also includes technical training, mentorship, community service, and social events. Responsibilities include but may not be limited to: • Work on data science, machine learning, generative AI, and data engineering projects in Azure cloud and Spark environments • Assemble large, complex datasets that meet functional and non-functional business requirements • Analyze complex data sources to derive actionable business insights • Develop, test, and deploy predictive models using machine learning algorithms and translate results into business recommendations • Support AI use cases involving retrieval-augmented generation (RAG), document summarization, and information extraction • Assist with prompt engineering and benchmark dataset development for AI applications • Contribute to AI workflow automation and agent-based solutions • Assess AI model performance, bias, and failure modes and document findings • Prepare and validate data for AI applications, including embeddings, vector databases, and data quality processes • Communicate results through reports, dashboards, presentations, and demonstrations • Collaborate with business and technical stakeholders to identify and prioritize requirements • Work with data and analytics experts to continuously improve enterprise data systems Required Technical Skills: • Currently pursuing a Master's Degree in Statistics, Business Analytics, Data Science, Computer Science, or a related quantitative field, with anticipated graduation between December 2027 and June 2028 • Experience using Python and/or R to manipulate data and derive insights from large datasets • Working SQL knowledge and experience with relational and NoSQL databases • Knowledge and experience of statistical analysis, data mining, and predictive modeling techniques • Experience with machine learning, deep learning, and NLP concepts and frameworks • Familiarity with social network analysis concepts • Experience with data discovery, analytics, and visualization tools • Experience or academic exposure to working with structured and unstructured data Preferred Technical Skills: • Experience working with large and complex datasets through coursework, research, or projects • Exposure to cloud platforms (Azure/AWS), big data technologies (Spark, Kafka), or workflow orchestration tools (Airflow, Azure Data Factory) • Familiarity with Python data science and machine learning libraries such as Pandas, Scikit-learn, and PyTorch • Coursework, research, projects, or internship experience involving machine learning, NLP, generative AI, or large language models • Exposure to LLM APIs and frameworks such as LangChain, LlamaIndex, or Hugging Face • Exposure to AI engineering and MLOps concepts, including containers, experiment tracking, and model deployment • Understanding of Responsible AI principles, including data privacy, transparency, fairness, and human oversight #LI-CH A reasonable estimate of the current base salary range