ZS Associates Summer Intern Interview: Complete Guide
Updated January 2026·10 min read
Rounds
2 rounds
Duration
45-60 minutes
Prep Time
3-6 weeks
Key Insight: Candidate-Led Format
ZS uses a candidate-led format where you drive the case from start to finish. You'll need to structure your own approach and decide what to analyze next. For Summer Intern candidates, this means showing strong foundational structuring skills and proactive hypothesis generation.
What Summer Interns Do at ZS
Summer internship program for undergraduate or MBA students. Interns work on real client projects for 8-10 weeks with the goal of receiving a full-time return offer.
- •Supporting case team analysis
- •Attending client meetings
- •Building slides and models
- •Learning consulting methodology
- •Networking with firm members
Interview Process
As an intern candidate at ZS, you'll typically face a condensed process:
- •1-2 case interviews (often combined into one super-day)
- •Shorter cases focused on fundamentals
- •Less emphasis on behavioral depth, more on potential
Skills Tested
Potential
Analytical basics
Learning agility
Cultural fit
What Makes ZS Different
Healthcare Focus
A key element of the ZS interview process.
Sales & Marketing Strategy
A key element of the ZS interview process.
Analytics-Driven
A key element of the ZS interview process.
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Start PracticingFrequently Asked Questions
How many interview rounds are there for ZS Summer Intern?
ZS typically conducts 2 rounds of interviews for Summer Intern candidates. Each round is approximately 45-60 minutes and includes both case and behavioral components. Internship interviews may be condensed into a single day.
What type of cases should I expect in a ZS Summer Intern interview?
ZS uses an candidate-led case format. Candidate-led cases with heavy emphasis on sales and marketing strategy, particularly in healthcare and life sciences. Cases often involve go-to-market and commercial excellence. For Summer Intern positions, interviewers will calibrate case difficulty to your experience level, emphasizing basic analytical skills.
How long should I prepare for a ZS Summer Intern interview?
Most successful Summer Intern candidates prepare for 3-6 weeks before their ZS interview. This includes mastering candidate-led cases, practicing mental math, and preparing behavioral examples.
What is unique about ZS's interview process?
ZS is known for its Healthcare Focus as well as Sales & Marketing Strategy and Analytics-Driven. Behavioral interview assessing leadership, analytical thinking, and fit with ZS's collaborative and data-driven culture. For Summer Intern candidates specifically, focus on demonstrating potential and learning agility.
What does a Summer Intern do at ZS?
Summer internship program for undergraduate or MBA students. Interns work on real client projects for 8-10 weeks with the goal of receiving a full-time return offer. Day-to-day responsibilities include supporting case team analysis, attending client meetings, building slides and models. The role targets current undergraduate or mba students.