stephenrogan/interview-prep-cs

Interview Prep for CS Roles

Structures interview preparation for CS positions at any level. Moves beyond generic "tell me your strengths" prep to CS-specific question patterns, story banks, and strategic discussion readiness.

How to Use

Provide:

• The role you are interviewing for (title, level, company if known)
• Your background (current role, tenure, key achievements, portfolio size)
• What you know about the role (job description, team size, reporting structure, company stage)
• Areas you feel strong in and areas you are worried about
• Any specific questions you have been told to prepare for

Question Patterns by Level

CSM / Associate Level

Focus: Can you do the job? Tactical execution, customer empathy, communication skills.

| Question Pattern | What They Are Assessing | How to Prepare | |-----------------|----------------------|---------------| | "Walk me through how you would onboard a new customer" | Process thinking, customer empathy, attention to detail | Have a clear onboarding framework. Show you think in milestones, not just tasks | | "Tell me about a time you saved an at-risk account" | Problem-solving, initiative, customer relationship skills | STAR format. Emphasise what you diagnosed, not just what you did | | "How do you prioritise when everything is urgent?" | Time management, judgment, ability to say no | Show your framework (book prioritisation or similar). Give a specific example of a trade-off you made | | "How would you handle a customer who is unhappy with the product?" | Empathy, de-escalation, accountability | Show you lead with acknowledgement, not defence. Give a real example |

Senior CSM / Principal Level

Focus: Can you operate independently and think strategically? Portfolio management, commercial acumen, cross-functional influence.

| Question Pattern | What They Are Assessing | How to Prepare | |-----------------|----------------------|---------------| | "How do you build a strategic account plan?" | Strategic thinking, proactive (not reactive) management | Walk through your framework. Reference account-strategy-builder approach | | "Tell me about an expansion you drove" | Commercial acumen, value-led selling, timing judgment | STAR format. Show how you identified the signal, built the case, and executed | | "How do you work with product to influence the roadmap?" | Cross-functional influence, evidence-based advocacy | Show how you aggregate feedback, quantify demand, and present to product | | "How do you handle a competitive threat?" | Strategic response, customer advocacy, composure under pressure | Walk through a real example with the diagnostic, response, and outcome |

CS Manager / Director Level

Focus: Can you build and lead a team? Hiring, coaching, process design, metric ownership.

| Question Pattern | What They Are Assessing | How to Prepare | |-----------------|----------------------|---------------| | "How would you structure a CS team for a company at [stage]?" | Organisational design, segmentation thinking, resource allocation | Have a framework for team structure by company size, motion (PLG vs. enterprise), and portfolio complexity | | "How do you measure CS success?" | Metric literacy, commercial orientation, strategic thinking | Go beyond NPS and CSAT. Discuss NRR, GRR, time-to-value, expansion rate, and how they connect to business outcomes | | "Tell me about a process you built or rebuilt" | Operational thinking, continuous improvement, scalability | STAR format with specific outcomes (time saved, consistency improved, measurable business impact) | | "How do you develop your team?" | Coaching capability, leadership style, talent development | Show you have a framework (goal-setting, peer coaching, structured 1:1s) with specific development outcomes |

VP CS Level

Focus: Can you own the function? P&L thinking, board communication, cross-functional leadership, strategic vision.

| Question Pattern | What They Are Assessing | How to Prepare | |-----------------|----------------------|---------------| | "How do you think about CS as a P&L function?" | Commercial orientation, financial literacy | Frame CS in terms of revenue protection (GRR), revenue growth (expansion), and efficiency (cost per dollar retained) | | "What would your first 90 days look like?" | Strategic planning, prioritisation, organisational awareness | Have a structured 30-60-90 plan that demonstrates you listen before you act | | "How do you present CS to the board?" | Executive communication, metric selection, strategic framing | Show you can distil the CS function into 3-4 metrics a board cares about with narrative context | | "How do you think about the role of AI/agents in CS?" | Strategic vision, operational innovation | Frame agent augmentation as a leverage thesis (multiply CSM impact) not a cost-cutting thesis (replace CSMs) |

Story Bank

Build a bank of 8-10 stories from your career that cover the most common interview themes:

| Theme | Story Needed | STAR Elements | |-------|-------------|--------------| | Save / retention | A time you saved an at-risk account | Situation: the risk. Task: your diagnosis. Action: the intervention. Result: the outcome (with numbers) | | Expansion / growth | A time you drove revenue growth | Situation: the signal. Task: building the case. Action: the conversation. Result: the expansion (with ARR) | | Difficult conversation | A time you delivered bad news or handled a conflict | Situation: the challenge. Task: what needed to be said. Action: how you said it. Result: the relationship outcome | | Cross-functional influence | A time you influenced product, engineering, or sales without authority | Situation: what you needed from them. Task: why it mattered. Action: how you built the case. Result: what changed | | Process improvement | A time you built or improved a process | Situation: the gap. Task: the design. Action: the implementation. Result: the impact (time saved, consistency, outcomes) | | Team leadership (for manager+) | A time you developed someone or led a team through change | Situation: the challenge. Task: your approach. Action: what you did. Result: the team outcome | | Strategic thinking | A time your strategic analysis changed how an account was managed | Situation: the complexity. Task: the analysis. Action: the strategy. Result: the outcome that would not have happened with a reactive approach | | Failure / learning | A time something went wrong and what you learned | Situation: what happened. Task: your role. Action: what you tried. Result: what you learned and changed. Be genuine -- not a "failure" that is actually a strength |

Interview Day Prep

| Phase | Actions | |-------|---------| | Night before | Review your story bank. Review the job description. Prepare 3 questions to ask the interviewer | | Morning | Review the company's recent news, product updates, and CS-relevant announcements | | 30 min before | Review your notes on the specific interviewer (LinkedIn) | | During | Listen more than you talk. Answer the question asked, not the question you wish they asked. Use the STAR framework. End answers with the result and what you learned | | After | Send a thank-you email within 24 hours referencing something specific from the conversation |

Output

For each interview, the skill produces:

• Likely questions for this specific level and company
• Suggested stories from your bank matched to each question
• STAR-structured answer outlines
• Questions to ask the interviewer (3-5 that demonstrate strategic thinking)
• Red flag assessment (areas where your experience may be thin and how to address them)

Quality Gates

• Do you have a story for each of the 8 story bank themes? Gaps in your story bank are gaps in your interview readiness. If you do not have a save story, a cross-functional influence story, or a failure story, build one before the interview
• Is every story quantified? A story without a number is an anecdote. "Retained EUR 85k in ARR" is evidence. "Saved the account" is a claim. Add the number
• Are your answers under 90 seconds when practised aloud? Time yourself. Answers that exceed 2 minutes lose the interviewer's attention regardless of content quality
• Do you have 3-5 questions to ask them? Questions that demonstrate strategic thinking ("How does your CS team measure success beyond NRR?" "What does the relationship between CS and Product look like here?") differentiate you from candidates who ask about benefits and PTO
• Have you researched the specific interviewer? One reference to something they posted, built, or said signals preparation. Zero references signal you are running a generic playbook

Principles

• Preparation is the differentiator. Two equally qualified candidates in the same interview: the one who prepared specific stories with quantified outcomes wins over the one who speaks generally about their experience
• Numbers win interviews. "I saved an account" is a claim. "I designed and executed a save play that retained EUR 85k in ARR -- the account renewed and expanded by 15% the following year" is evidence. Quantify every story
• The interview is a conversation, not an interrogation. Ask questions. Show curiosity about their CS organisation, their challenges, their metrics. The best interviews feel like a working session, not a Q&A
• Answer the question, then stop. The most common interview mistake is rambling past the answer because you are nervous. Practice answering in 60-90 seconds. If they want more detail, they will ask