Customer Success interview prep.

Behavioural questions to expect

1. Walk me through your CV.
2. Tell me about your most impactful renewal save or expansion.
3. Tell me about a weakness, a failure, or feedback you've received and worked on.
4. Why customer success - and why this segment vs SMB / consumer / pure sales?
5. Which customer segment or GTM motion would you want to own, and why?
6. Why the firm?
7. How would you describe the firm's product + customer base + what a book looks like here?
8. How does customer success actually drive value at an enterprise SaaS firm?

Technical concepts to master

• Health score + segmentation + coverage

  Health score composition · Segmentation by ACV + lifecycle + risk · High-touch vs tech-touch vs PLG coverage · Time allocation + portfolio rebalancing

• Onboarding + TTV + adoption

  Kickoff + success plan · TTV (time to value) · Activation + adoption depth · Mutual Action Plan (MAP)

• QBR + executive cadence

  QBR structure (value delivered + value to come + risk + asks) · EBR (Executive Business Review) · Sponsor + champion mapping · Customer Advisory Board (CAB)

• Expansion mechanics + commercial partnership

  Expansion vectors - seats / usage / modules / tier · Signal-triggered expansion plays · Sales + CS partnership on expansion · Renewal motion (T-120 / T-90 / T-60 / T-30)

Practical drills

• A top-10 customer at the firm has gone red: usage down 40% in 60 days, the executive sponsor left last quarter, the new sponsor is unknown to the team, and renewal is in 6 months. Walk me through your 90-day rescue plan.
• the firm's mid-market segment has GRR at 88% and NRR at 102%; the strategy calls for GRR 93% + NRR 115% in 4 quarters. Walk me through your plan.
• Your CRO + CFO escalate: the firm's biggest customer (~7% of ARR) is threatening churn at renewal in 4 months unless you commit to a custom build outside the roadmap. The sponsor cites a workflow gap; sales says competitors are circling. Walk me through how you handle it.

Smart-question anchors

• Book + coverage - the segment mix, the typical book size + ACV, the high-touch / tech-touch / digital split
• Metrics + targets - the firm's NRR / GRR / expansion targets, what a CSM is actually measured + compensated on
• Health-score + at-risk system - the tooling + signals, the at-risk playbook, how escalations actually flow
• Cross-functional - the CS / sales partnership on expansion, the CS / product feedback loop, the CS / support boundary
• Onboarding + TTV - the standard onboarding sequence, TTV expectations by segment, the implementation team interface

Sourced from

Gainsight - Customer Success Index + NRR / GRR / Health Score canon · ChurnZero - CS playbook + at-risk + onboarding canon · OpenView Partners - SaaS benchmark reports (NRR, GRR, expansion bands) · Bessemer Venture Partners - State of the Cloud + NRR canon · CSM Practice + Catalyst - CS interview-prep guides · Sixteen Ventures / Lincoln Murphy - CS + outcomes-based engagement