AI Startup Interviews - The Complete Playbook
Reading time: ~42 min | Interview relevance: Critical | Roles: ML Engineer, Founding ML Engineer, Research Engineer, Head of ML, Applied Scientist
The Real Interview Moment
You are on a Zoom call with the CEO of a Series A AI startup. They are a former Google Brain researcher with three first-author NeurIPS papers. Behind them is a whiteboard covered in architecture diagrams. They lean forward and say: "We have 8 engineers, $15M in funding, and 14 months of runway. Our product uses LLMs to automate legal document review. We're serving 30 enterprise customers. I need someone who can own our entire ML stack \text{---} training data pipeline, model fine-tuning, evaluation, serving, monitoring. Everything. We do not have separate ML platform, data engineering, or MLOps teams. You would be the team. Can you walk me through how you would approach the first 90 days?"
This is not an abstract question. This is a real conversation happening at hundreds of AI startups right now. The startup interview is fundamentally different from a Big Tech interview. There is no structured rubric, no bar raiser, no hiring committee. The CEO and CTO are evaluating one thing: can this person do the actual work we need done, starting immediately?
You will not get 45-minute coding rounds testing algorithms you will never use. Instead, you will get a take-home project that mirrors real work. You will have a 2-hour pairing session where you write production code together. You will sit in a room with the founders and they will decide \text{---} often that same day \text{---} whether to extend an offer.
The speed is exhilarating. The stakes are different. And the questions you should ask are completely different from Big Tech interviews.
Welcome to AI startup interviews. Everything moves faster \text{---} including both the opportunities and the risks.
What You Will Master
- How AI startup interviews fundamentally differ from Big Tech
- Stage-specific differences: pre-seed, seed, Series A, Series B+
- The take-home project and how to excel at it
- Founder interviews and what founders are really evaluating
- Equity evaluation: how to assess startup offers realistically
- Red flags that signal a startup to avoid
- How to evaluate culture, technical debt, and team quality
- Negotiation strategies for startup offers
Part 1 \text{---} How Startup Interviews Differ
The Fundamental Differences
Side-by-Side Comparison
| Dimension | Big Tech | AI Startup |
|---|---|---|
| Process length | 6-16 weeks | 1-4 weeks |
| Number of rounds | 6-8 | 3-5 |
| Coding style | LeetCode algorithm problems | Take-home projects, pair programming, real-world problems |
| System design | Whiteboard, hypothetical systems | "How would you build our actual product?" |
| Behavioral | Structured (STAR, LP) | Unstructured conversation with founders |
| Decision-making | Committee / hiring panel | Founder / CTO decides (often same day) |
| What they test | Can you solve hard problems in a structured environment? | Can you do the actual job, starting now? |
| Leveling | Precise levels (L4, L5, L6) | "ML Engineer" or "Senior ML Engineer" \text{---} less granular |
| Reference checks | Formal, after interview | Often informal, before or during process |
| Negotiation | Structured comp bands | More flexible, less structured |
The single biggest advantage of startup interviews for candidates: they test real-world ability. If you are someone who struggles with LeetCode but excels at building production ML systems, startups may be a better fit. The downside: there is less standardization, more variation, and more ambiguity in the process.
Part 2 \text{---} Stage-Specific Differences
How Startup Stage Affects the Interview
The startup's stage dramatically affects what they look for, how they interview, and what they offer.
Stage Comparison
| Dimension | Pre-Seed / Seed | Series A | Series B+ |
|---|---|---|---|
| Team size | 2-10 | 10-40 | 40-200+ |
| ML team size | 0-2 (you might be first) | 2-8 | 8-30+ |
| Your role | Build everything from scratch | Own a major ML area | Specialize in a domain |
| Technical bar | Breadth over depth | Strong breadth + some depth | Depth in specific area |
| Interview focus | Can you build? Are you resourceful? | Can you build and scale? | Can you optimize and lead? |
| Equity | 0.5-2% | 0.1-0.5% | 0.01-0.1% |
| Salary | $120-180K | $150-250K | $180-300K |
| Risk | Very high | High | Medium |
| Process formality | Minimal | Some structure | Closer to Big Tech |
| Decision speed | Days | 1-2 weeks | 2-4 weeks |
Pre-Seed / Seed Interview - What to Expect
The founder interview (30-60 min):
- Founders will assess: Are you smart? Are you resourceful? Will you build whatever is needed?
- They will describe the vision and want your reaction - do you have good ideas? Do you poke holes thoughtfully?
- Cultural fit is everything - you will work 10 feet from these people every day
- They may ask you to design the MVP ML system on the spot
What founders look for at this stage:
- Willingness to do unglamorous work (data labeling, pipeline debugging, customer calls)
- Speed of iteration - can you build something in a week, not a quarter?
- Comfort with ambiguity - the problem may change daily
- Full-stack capability - you might need to build the API, the model, the data pipeline, and the monitoring
Series A Interview - What to Expect
Typical process: Intro call, take-home project (4-8 hours), technical deep dive (2-3 hours), team meet (1-2 hours), founder conversation (30-60 min).
What they test:
- Can you own a major ML area end-to-end?
- Do you write production-quality code?
- Can you make good trade-offs between speed and quality?
- Will you fit with the existing team?
Series B+ Interview - What to Expect
Process becomes more structured: closer to Big Tech with dedicated coding, system design, and behavioral rounds. But the culture and pace are still startup-like.
What they test:
- Deep expertise in a specific ML domain
- Experience scaling ML systems
- Ability to mentor and lead (if senior)
- Alignment with company direction
Part 3 - The Take-Home Project
Why Startups Use Take-Homes
Most AI startups include a take-home project in their interview process. Reasons:
- It tests real-world ML ability (not LeetCode ability)
- It reveals code quality, documentation, and engineering practices
- It simulates actual work more closely than a 45-minute coding round
- It is more respectful of candidates' time than 5 hours of onsite rounds (debatable)
What Good Take-Home Projects Look Like
| Aspect | Good Take-Home | Red Flag Take-Home |
|---|---|---|
| Time | 4-8 hours, clearly stated | "Should take a weekend" or no time estimate |
| Scope | Well-defined problem with clear deliverables | Open-ended with no evaluation criteria |
| Relevance | Related to the actual work | Generic ML exercise unrelated to the company |
| Evaluation | Clear rubric or criteria shared upfront | "We'll review it" with no criteria |
| Compensation | Compensated (best) or acknowledged | Free labor disguised as interview |
How to Excel at a Take-Home Project
The structure of an excellent take-home submission:
The README is the most important deliverable. It should include:
- Problem understanding - restate the problem in your own words
- Approach - what you tried and why
- Decisions and trade-offs - why you chose Model A over Model B
- Results - metrics, with analysis of strengths and weaknesses
- What you would do with more time - shows awareness and prioritization
- How to run - clear instructions to reproduce results
Many candidates spend 90% of their time on the model and 10% on everything else. Startup evaluators often weight the README, code quality, and engineering practices as heavily as model performance. A candidate who gets 85% accuracy with clean code, good documentation, and clear trade-off discussion often beats a candidate who gets 90% accuracy with spaghetti code and no writeup.
Take-home best practices:
- Time-box yourself - if the stated time is 4-6 hours, do not spend 20 hours. Evaluators can tell, and it signals poor time management.
- Start simple - implement a baseline first. Then iterate if time allows.
- Document your decisions - "I chose XGBoost over a neural network because the dataset is small (5K samples) and tabular features dominate."
- Include error analysis - "The model struggles with Category X (40% recall). This is because the training data has only 50 examples for this category."
- Write clean code - proper function names, type hints (if Python), docstrings. This is a code quality test.
- Include tests - even basic ones show engineering discipline.
- Mention production considerations - "In production, I would add model monitoring for data drift and A/B testing for new model versions."
Part 4 - The Founder Interview
What Founders Are Actually Evaluating
The founder interview is unlike any round at Big Tech. Founders are not following a rubric - they are making a gut decision informed by pattern matching.
What founders look for:
| Signal | What It Means | How to Demonstrate |
|---|---|---|
| Ownership | Will you own problems end-to-end? | Describe projects where you owned the full lifecycle |
| Resourcefulness | Can you figure things out without resources? | Tell stories about working with limited data, compute, or time |
| Speed | Can you ship fast? | Describe projects with tight timelines and how you met them |
| Taste | Do you make good technical judgment calls? | Discuss trade-offs you made and why |
| Culture add | Will you improve the team culture? | Be genuine, collaborative, curious |
| Mission alignment | Do you care about this problem? | Research the company deeply; ask informed questions |
| Honesty | Are you candid about what you know and don't know? | Admit gaps openly; do not pretend to know things you don't |
Common founder interview questions:
- "If you joined on Monday, what would you do in your first 30 days?"
- "Here's our architecture. What would you change?"
- "We're choosing between building X and building Y. How would you decide?"
- "What's the scrappiest thing you've ever built?"
- "Tell me about a time you had to learn a new ML domain quickly."
- "What's your biggest concern about joining a startup?"
- "If our current approach fails, what's Plan B?"
Founders respect candidates who push back thoughtfully. If the founder describes their ML approach and you see a potential issue, say so - diplomatically but clearly. "Have you considered the risk of data drift in this approach? At my previous company, we saw model degradation within 3 months because..." This shows you think critically and care about getting it right.
The "Architecture Review" Pattern
Many AI startups will show you their actual architecture during the interview and ask for your feedback. This is a critical evaluation moment.
How to approach it:
What NOT to do:
- Do not tear apart the architecture - the founders built it and are proud of it
- Do not propose a complete rewrite - that is unrealistic and disrespectful
- Do not ignore it and just talk about what you would build from scratch
- Do not be sycophantic - "It looks perfect!" is not helpful
What TO do:
- Acknowledge the strengths: "The choice to use a two-stage retrieval system was smart for this scale."
- Identify high-impact improvements: "The biggest risk I see is the lack of model monitoring - if data drift occurs, you won't know until customers complain."
- Propose pragmatic solutions: "Before building a full monitoring system, you could add simple data quality checks and model prediction distributions as a quick win."
- Ask about constraints: "Is there a reason you chose to self-host instead of using a managed service? Understanding the constraint helps me suggest the right improvements."
Part 5 - Equity Evaluation
The Most Important Topic No One Teaches You
Startup equity is the most misunderstood part of AI startup compensation. Understanding it is critical for evaluating offers.
How Startup Equity Works
Key terms you must know:
| Term | Definition | Why It Matters |
|---|---|---|
| Stock options | Right to buy company shares at a set price (strike price) | Your potential upside if the company succeeds |
| Strike price | The price you pay to exercise (buy) your options | Lower is better - more upside |
| Vesting schedule | Timeline over which you earn your options | Typically 4 years with 1-year cliff |
| Cliff | Period before any options vest | Usually 1 year - if you leave before cliff, you get nothing |
| 409A valuation | IRS-determined fair market value of shares | Sets your strike price; updated annually |
| Fully diluted shares | Total number of shares including all options and future pools | Determines your percentage ownership |
| Preferred vs Common | Investors get preferred shares (with protections); employees get common | In a bad exit, preferred shares get paid first |
| Liquidation preference | Investors get their money back before common shareholders | Can wipe out common shares in modest exits |
How to Evaluate an Equity Offer
Step 1: Get the numbers
You must ask for:
- Number of options offered
- Total fully diluted shares outstanding
- Current 409A valuation (strike price)
- Last funding round valuation
- Vesting schedule
- Option type (ISO vs NSO)
If a startup refuses to tell you the total number of fully diluted shares outstanding, this is a major red flag. Without this number, you cannot calculate your percentage ownership. "We'll share that after you accept" is unacceptable. Walk away.
Step 2: Calculate your ownership percentage
Your percentage = (Your options / Fully diluted shares) x 100
Example:
- Your options: 50,000
- Fully diluted shares: 10,000,000
- Your percentage: 0.5%
Step 3: Value the options at different outcomes
| Exit Valuation | Your 0.5% Share | Minus Strike Price | Minus Taxes (~40%) | Net Value |
|---|---|---|---|---|
| $50M | $250K | ~$230K | ~$138K | ~$138K |
| $100M | $500K | ~$480K | ~$288K | ~$288K |
| $500M | $2.5M | ~$2.48M | ~$1.49M | ~$1.49M |
| $1B | $5M | ~$4.98M | ~$2.99M | ~$2.99M |
| $0 (failure) | $0 | $0 | $0 | $0 |
Step 4: Apply a probability-weighted value
This is the critical step most people skip. What is the probability of each outcome?
| Outcome | Probability (Series A) | Value at 0.5% | Expected Value |
|---|---|---|---|
| Company fails | 60-70% | $0 | $0 |
| Modest exit ($50-100M) | 15-20% | $138-288K | ~$35K |
| Good exit ($200-500M) | 8-12% | $500K-1.5M | ~$100K |
| Great exit ($1B+) | 3-5% | $2.5M+ | ~$100K |
| Expected value | ~$235K (over 4 years) |
Key insight: The expected value of typical startup equity is often $50-100K per year - comparable to or less than the RSU value gap if you chose Big Tech. Equity is a bet, not compensation.
Equity Red Flags
| Red Flag | Why It Matters | What to Do |
|---|---|---|
| Won't share fully diluted count | Cannot calculate ownership | Walk away or insist |
| High liquidation preference | Investors get paid first; your shares may be worthless in modest exits | Ask about the cap table and investor terms |
| Short exercise window | If you leave, you must exercise (buy) options within 90 days or lose them | Negotiate for extended exercise window (7-10 years) |
| No 409A valuation | Potential tax and legal issues | Ask when the last 409A was done |
| Excessive option pool | Large unallocated option pool dilutes your percentage | Ask how much of the pool is allocated vs reserved |
| Ratchet provisions | Investor anti-dilution protections that dilute employees disproportionately | Ask about anti-dilution provisions |
Many startup candidates mentally value their equity at the "best case" outcome. If a recruiter says "your equity could be worth $5M if we reach unicorn status," this is technically true but deeply misleading. The expected value is the probability-weighted average across all outcomes, including the 60-70% probability of the company failing. Value your equity at the expected value, not the best case.
Part 6 \text{---} Red Flags and Due Diligence
Red Flags in the Interview Process
| Red Flag | What It May Indicate |
|---|---|
| Take-home takes 20+ hours | They do not respect your time; may be extracting free work |
| No clear ML use case | "We'll figure out how to use AI" \text{---} no product-market fit |
| Founder cannot explain the business model | High risk of running out of money |
| Extremely high churn in ML team | Culture or leadership problems |
| "We just need someone to implement the model" | They see ML engineers as code monkeys |
| No data or very little data | The ML problem may not be solvable yet |
| Founder dismisses your technical concerns | They do not value engineering judgment |
| Pressure to decide immediately | "Exploding offer" is a red flag in any context |
| No technical co-founder | ML may be an afterthought, not core to the product |
| Extremely low salary "made up by equity" | You cannot pay rent with equity |
Red Flags in the Product and Technology
| Red Flag | What It May Indicate |
|---|---|
| "AI-powered" but no real ML | Wrapper around GPT API with no differentiation |
| No evaluation or monitoring | They do not know if their ML works |
| Massive technical debt | You will spend months cleaning up instead of building |
| No data pipeline | Building infrastructure from scratch takes 6+ months |
| Over-complicated architecture for simple problems | Poor technical judgment |
| "We'll train our own foundation model" | Unrealistic for most startups; requires $10M+ compute |
Due Diligence Questions to Ask
Ask the founders:
- What is your runway? How many months of funding remain?
- What are the key milestones for the next funding round?
- How many customers do you have? What is the revenue?
- What is the ML team's retention rate over the past 2 years?
- Who are your investors? Can I speak with them?
- What is the biggest technical risk facing the ML product?
Ask current/former employees (find them on LinkedIn):
- What is the culture actually like?
- How much autonomy does the ML team have?
- Is the founder/CTO receptive to technical feedback?
- What is the typical work-life balance?
- Why did people leave?
Research independently:
- Crunchbase: funding history, investors, founder background
- Glassdoor: employee reviews (filter for ML/engineering)
- LinkedIn: team composition, growth rate, turnover patterns
- Product Hunt / G2: customer reviews, product quality
- GitHub: open-source contributions (quality indicator)
The best due diligence signal is talking to former employees. If multiple ML engineers left within 12-18 months, that is a strong negative signal. If former employees speak highly of the company even after leaving, that is a strong positive signal. Ask your recruiter if you can speak with someone who recently left - their willingness to facilitate this tells you a lot.
Part 7 - Types of AI Startups
The Landscape
Not all AI startups are the same. Understanding the category helps you evaluate the opportunity.
| Category | Examples | ML Depth | Risk | Potential |
|---|---|---|---|---|
| Foundation model companies | Anthropic, Cohere, Mistral | Very High | Medium-High | Very High |
| Vertical AI (SaaS) | Harvey (legal), Hippocratic (health) | Medium-High | Medium | High |
| AI infrastructure | Weights & Biases, Modal, Anyscale | Medium | Medium | High |
| AI-native products | Perplexity, Jasper, Midjourney | Medium | Medium-High | High |
| AI wrappers | Thousands of GPT wrappers | Low | Very High | Low |
| ML tooling | LangChain, LlamaIndex, Guardrails AI | Medium | High | Medium |
| Robotics + AI | Figure AI, Covariant | Very High | High | Very High |
How the Category Affects Your Interview
Foundation model companies: Interview resembles a research lab. Expect deep ML theory, scaling laws, training infrastructure, and research discussion. Technical bar is extremely high. These companies hire like DeepMind or OpenAI.
Vertical AI (SaaS): Interview focuses on applied ML and domain understanding. Can you fine-tune models for a specific domain? Do you understand the customer's workflow? Technical bar is high but weighted toward applied skills.
AI infrastructure: Interview focuses on systems engineering, distributed systems, and developer experience. ML depth matters less than ML infrastructure depth. Think: "How do you build a model serving platform?" not "How does attention work?"
AI-native products: Interview tests product sense combined with ML. Can you design an ML feature that users love? Can you iterate quickly based on user feedback? Technical bar is moderate; product intuition matters more.
AI wrappers: Be cautious. Many "AI startups" are thin wrappers around API calls with no real ML. The interview may be easy because the ML work is shallow. The risk is high because the moat is shallow.
If an "AI startup" cannot clearly articulate what ML problem they solve, how they differentiate from competitors, and why their approach requires ML engineering (not just API calls), be very cautious. The AI hype cycle has created thousands of companies that call themselves "AI startups" but have no meaningful ML. Your career is better served working on real ML problems.
Part 8 - Compensation and Negotiation
Startup Compensation Framework
| Component | Pre-Seed/Seed | Series A | Series B+ |
|---|---|---|---|
| Base salary | $120-180K | $150-250K | $180-300K |
| Equity | 0.5-2.0% | 0.1-0.5% | 0.01-0.15% |
| Signing bonus | Rare | Sometimes | Often |
| Benefits | Minimal | Basic | Competitive |
| 401k match | No | Sometimes | Usually |
| Healthcare | Basic | Standard | Good |
How to Negotiate Startup Offers
Salary negotiation:
- Know the market rate for your experience level at similar-stage startups
- Use Big Tech offers as anchors \text{---} "My alternative is $450K TC at Google" sets context
- Be honest about what you need - many founders are flexible on salary if you are transparent
- Consider total cash needed: mortgage, family, savings goals
- Do not accept below-market salary purely based on equity promises
Equity negotiation:
- Always negotiate on percentage, not number of shares
- Ask for the fully diluted share count to calculate percentage
- Negotiate for an extended exercise window (7-10 years instead of 90 days)
- Ask about acceleration on change of control (double-trigger acceleration)
- Understand ISOs vs NSOs and the tax implications
Non-monetary negotiation:
- Title: At startups, title matters for your next job. Negotiate for "Senior" or "Staff" if justified.
- Remote flexibility: Many startups are flexible on location. Ask.
- Conference budget: Access to NeurIPS, ICML, etc. is valuable for career growth.
- Compute budget: Personal cloud compute for research/experimentation is valuable.
- Advisor role (if not joining full-time): Some people advise startups part-time for 0.1-0.25% equity.
Foundation model companies (Anthropic, Cohere, Mistral) pay closer to Big Tech levels - $300-600K+ total compensation \text{---} because they compete directly with Google, Meta, and OpenAI for the same talent. Vertical AI startups and smaller startups pay less in cash but may offer more equity. AI infrastructure companies fall somewhere in between.
Part 9 \text{---} Making the Decision: Startup vs. Big Tech
The Decision Framework
The Honest Trade-Off Table
| Dimension | Big Tech | Startup |
|---|---|---|
| Compensation (guaranteed) | High ($400-600K+ at senior level) | Lower ($200-350K cash) |
| Upside | Stock appreciation (predictable) | Equity upside (unpredictable, potentially massive) |
| Learning breadth | Narrow (specialize) | Wide (do everything) |
| Learning depth | Deep (world-class peers) | Moderate (learn by doing) |
| Resume signal | Strong (recognized everywhere) | Variable (depends on startup outcome) |
| Autonomy | Low-Medium | Very High |
| Impact visibility | Low (you are one of many) | High (you are the ML team) |
| Job security | High (but layoffs happen) | Low (startups fail) |
| Work-life balance | Good (mostly) | Variable (often intense) |
| Career trajectory | Predictable (levels, promos) | Unpredictable (could be VP of ML or unemployed) |
Part 10 - Startup Interview Preparation
The 2-Week Startup Prep Plan
Startup interview timelines are compressed - you may need to prepare in 2 weeks, not 4.
Week 1: Research and Fundamentals
- Deep dive into the company: product, customers, business model, competitors
- Read the company's blog, technical posts, and any published papers
- Understand the ML domain: what are the hard problems in their space?
- Prepare a take-home-ready setup: clean dev environment, familiar tools
- Practice explaining your work to non-ML audiences
Week 2: Applied Preparation
- Practice the take-home format: build an end-to-end ML project in 6 hours
- Practice pairing: code with a friend watching and asking questions
- Prepare your "first 90 days" plan for this specific company
- Prepare due diligence questions
- Research the founders (publications, talks, LinkedIn, Twitter)
Startup ML Interview Preparation Checklist
Before Applying
- Research the company deeply: product, funding, team, competitors
- Evaluate: is this a real ML company or an API wrapper?
- Check founder backgrounds: technical credibility, track record
- Look for red flags: high turnover, no clear ML use case, unrealistic claims
Before the Interview
- Prepare your "first 90 days" plan for this specific company
- Practice building an end-to-end ML project in 6 hours
- Prepare 5 project stories with emphasis on breadth and resourcefulness
- Prepare due diligence questions about runway, equity, culture
- Research the founders' technical background and publications
During the Process
- Ask for the fully diluted share count
- Ask about the exercise window for stock options
- Talk to current employees (ask the recruiter to arrange this)
- Evaluate the technical stack honestly - can you work with it?
- Assess the founders: Do you respect them? Would you enjoy working with them?
Before Accepting
- Calculate your equity's expected value (probability-weighted)
- Compare total compensation honestly: startup cash + expected equity vs. Big Tech TC
- Talk to former employees
- Check Glassdoor, Blind, and LinkedIn for signals
- Make sure you can afford the salary (do not rely on equity for living expenses)
Part 11 - Sample Questions and Answers
Founder Interview Sample
Question: "If you joined on Monday, what would you do in your first 90 days?"
Strong answer:
"Days 1-14: Understand the system and customers. I would read every piece of documentation, talk to every team member, and get the current ML system running locally. I would also sit in on 3-5 customer calls to understand how they use the product and where ML fails them.
Days 15-30: Audit and identify wins. I would audit the current ML pipeline: data quality, model performance, serving latency, monitoring gaps. I would identify 2-3 quick wins - things I can improve in a week that have measurable impact. These might be: adding model monitoring, fixing data quality issues, or tuning model hyperparameters.
Days 30-60: Ship the first improvement. Based on the audit, I would pick the highest-impact improvement and ship it. This might be improving model accuracy on a specific use case, reducing serving latency, or building an evaluation pipeline that does not exist yet. I want to deliver measurable value within 60 days.
Days 60-90: Build the roadmap. Now that I understand the system, the customers, and the quick wins, I would propose a 6-month ML roadmap. This would prioritize: (1) reliability and monitoring, (2) model performance improvements, and (3) new ML capabilities. I would present this to the team and get feedback before committing.
The key principle: earn trust by shipping value before proposing big changes."
Take-Home Project Sample
Prompt: "Build a model to classify customer support tickets into categories. We've attached a dataset of 10,000 labeled tickets. Spend 4-6 hours. We care about your approach and engineering quality as much as model performance."
Excellent submission characteristics:
-
README (30% of evaluation weight):
- Clear problem restatement
- EDA findings: class distribution, text length distribution, common patterns
- Approach: "I tried TF-IDF + logistic regression as a baseline (78% accuracy), then fine-tuned a DistilBERT model (89% accuracy)"
- Trade-off discussion: "The DistilBERT model is 10x slower to serve but 11% more accurate. For a support ticket classifier, I'd recommend the DistilBERT model because latency is not critical (tickets are processed asynchronously)."
- Error analysis: "The model struggles with tickets that span multiple categories. 60% of errors are on multi-label tickets."
- What I'd do with more time: data augmentation, multi-label classification, active learning
-
Code (40% of evaluation weight):
- Clean, well-structured Python
- Proper train/validation/test split
- Reproducible (random seeds, requirements.txt)
- Basic tests
- Clear function names and docstrings
-
Results (30% of evaluation weight):
- Precision, recall, F1 per class
- Confusion matrix
- Example correct and incorrect predictions
- Comparison of baseline vs. fine-tuned model
Next Steps
AI startup interviews test different skills than Big Tech: breadth over depth, resourcefulness over process, shipping over perfection. The equity component adds a dimension of financial evaluation that requires careful analysis. If you value autonomy, speed, and the chance to build something from scratch, startups offer an experience that Big Tech cannot match.
Next, learn how DeepMind interviews differ - with their emphasis on research depth, mathematical rigor, and collaborative problem solving: DeepMind Interviews.
