William Blair

About the Company

William Blair is the premier global partnership with expertise in investment banking, investment management, private wealth management, institutional sales and trading, and equity research. We provide advisory services, strategies, and solutions to meet our clients' evolving needs.
As an independent and employee-owned firm, together with our strategic partners, we operate in more than 20 offices worldwide.*

*Includes strategic partnerships with Allier Capital, BDA Partners, and Poalim Capital Markets.

Social Media Disclaimer: williamblair.com/Disclosures#social

Listed Jobs

Company Name

William Blair

Job Title

Working in Technology (WiT) Data Science - Summer 2026

Job Description

**Job Title:** Working in Technology (WiT) Data Science – Summer 2026 **Role Summary:** A 10‑week undergraduate internship focused on data science, machine learning, and data engineering. Interns develop and deploy analytical models using Azure and Spark, assemble complex datasets, extract insights, and present findings to business stakeholders. The role supports mission‑critical projects across technology and analytics teams. **Expectations:** - Enrolled in a bachelor’s program (Statistics, Business Analytics, Data Science, Computer Science, or related field). - Anticipated graduation between December 2026 and June 2029. - Demonstrated knowledge of statistical programming, SQL, and data engineering concepts. **Key Responsibilities:** - Work on multiple data science, ML, and data‑engineering projects in Azure cloud and Spark environments. - Assemble and clean large, complex datasets to meet functional and non‑functional business requirements. - Analyze data sources to derive actionable business insights and improve ROI. - Develop, test, and deploy predictive models using a range of ML algorithms. - Translate model results into business recommendations and present findings through reports, dashboards, and presentations. - Collaborate cross‑functionally with business and technical stakeholders to identify and prioritize project requirements. - Partner with data and analytics experts to enhance data system functionality. **Required Skills:** - Proficiency in R or Python for data manipulation and statistical analysis. - Working knowledge of SQL and experience with relational and NoSQL databases. - Familiarity with statistical and data‑mining techniques. - Experience with ML/DL algorithms and frameworks (e.g., scikit‑learn, TensorFlow, PyTorch). - Knowledge of text mining, NLP, or social network analysis. - Ability to use data discovery and visualization tools (e.g., Power BI, Tableau). - Hands‑on data engineering experience with structured and unstructured data. **Required Education & Certifications:** - Currently pursuing a Bachelor’s degree in Statistics, Business Analytics, Data Science, Computer Science, or a closely related field. - Expected graduation between December 2026 and June 2029. ---

Chicago, United states

On site

07-02-2026

Company Name

William Blair

Job Title

Executive Assistant, Investment Banking (12mth Fixed Term Contract)

Job Description

Job Title: Executive Assistant, Investment Banking Role Summary: Provides comprehensive administrative coordination for an investment banking team, eliminating routine tasks to enhance productivity. Manages complex travel, calendars, expense reports, data maintenance, meetings, and office operations while representing the firm professionally in all communications. Operates independently with discretion, analyzing requests, identifying efficiencies, and training junior staff as needed. Expectations: 12‑month fixed‑term contract. High‑school diploma required; bachelor’s degree preferred. Minimum five years’ experience in an office environment, preferably in professional services. Must work independently, maintain confidentiality, and adapt quickly in a fast‑paced setting. Key Responsibilities: - Arrange complex travel itineraries and submit timely expense reports. - Proactively manage calendars, anticipate conflicts, and coordinate meeting logistics. - Update and maintain contact databases; compile and analyze data for reports, charts, and presentations. - Provide office support: answer phones, greet clients, distribute mail, manage filing systems, take minutes, create documents, and process invoices. - Support projects and process improvement initiatives; apply independent judgment on policy interpretation. - Train and mentor junior administrative staff. - Respond to additional duties as required. Required Skills: Microsoft Word, Excel, PowerPoint, Outlook; excellent verbal and written communication; strong problem‑solving and critical‑thinking abilities; effective multitasking; high attention to detail; strong organizational and prioritization skills; teamwork and confidentiality; adaptability to change; capacity to thrive in a fast‑paced environment. Required Education & Certifications: High‑school diploma required; bachelor’s degree considered a plus; no mandatory certifications.

London, United kingdom

On site

Mid level

25-02-2026