AI Coding Interview Preparation:
What You Actually Need

AI coding interviews differ from traditional SWE interviews.
Learn what to expect and how to prepare efficiently.

Not Sure What AI Coding
Interviews Actually Test?

You've prepared LeetCode but AI roles ask different types of questions you haven't seen.

You're not sure if you should study algorithms, ML, or LLM APIs for the coding round.

Take-home projects feel overwhelming without knowing what evaluators actually look for.

What AI Coding Interviews Actually Cover

The World-Class AI Engineer Cohort

AI engineering coding interviews test practical skills over algorithm puzzles. Most focus on Python proficiency, API integration, and working with data structures relevant to AI.

1

Python Fundamentals

Classes, decorators, async/await, type hints, and common libraries like Pandas

2

Data Manipulation

JSON processing, text parsing, embeddings, and basic data pipelines

3

LLM Integration

API calls, prompt construction, response parsing, and error handling

4

Basic Algorithms

String manipulation, array operations, and tree/graph traversal (not LeetCode hard)

Meet Your Mentor

Zen van Riel

My aim has been the same for years: become a world-class AI engineer. Every career move I've made has been measured against that.

I started as a software tester on a $500/month internship in the Netherlands. Taught myself to code, learned to ship real systems, and worked my way to Senior Engineer at GitHub.

Then I left GitHub. I joined an AI research lab as Member of Technical Staff, where I currently build products for secure AI monitoring.

The cohort draws directly from my real experience so you can make progress fast.

I run this special cohort with only a few people because hands-on work with me is what it takes to bring you to become a world-class AI engineer.

Career progression from Intern to Senior Engineer

Real Results

Vittor

Vittor

AI Engineer

Built and deployed his portfolio piece, then landed the AI role

"The coaching played a huge part in my success. I focused on AI fundamentals, the certification path, and soft skills like professional writing. Having access to expert guidance gave me confidence during interviews and helped me feel I was on the right path.

I built my own platform (simple but functional) and deployed it on AWS. I used it in my portfolio and showcased it during interviews. The way complex topics were explained, especially the restaurant analogy for AI systems, really stuck with me. Focusing on doing the basics well was absolutely essential."

What You Will Get

8 Weekly Tuesday Sessions

3 hours each for 24 live hours total.

Project Scoping at Kickoff

We set the scope of what you'll ship and the milestones to get there before the live sessions start.

Code Reviews

Reviews of your code from Zen during the cohort.

Lifetime Demo Access

Every architecture demo is recorded and yours to keep.

Demo Day

You present what you built and get feedback from Zen, with a recording you can use in your portfolio.

12 Months Community Access

Included with the cohort.

AI Interview Prep Is Different. Start Studying the Right Things.

8
Weeks
6
Seats per Cohort
24
Live Hours with Zen

Frequently Asked Questions

How do AI coding interviews differ from traditional SWE interviews?

AI coding interviews emphasize: (1) Python proficiency over language-agnostic algorithms, (2) Working with APIs and JSON data, (3) Text processing and embeddings, (4) Practical problems over puzzle-style questions. You'll see fewer dynamic programming and more data pipeline tasks. The bar for algorithmic complexity is usually lower, but the bar for clean, production-ready code is higher.

What are common AI coding interview questions?

Typical questions include: Build a simple RAG pipeline, Implement semantic search with embeddings, Parse and chunk documents for LLM processing, Build a retry mechanism for API calls, Implement caching for LLM responses, Process streaming responses, Evaluate LLM output quality. Most test your ability to write clean Python that works with LLM APIs.

Do I need to grind LeetCode for AI engineering roles?

Less than for traditional SWE roles. Most AI interviews stick to medium-difficulty array/string problems. Focus on: hash maps, two pointers, basic recursion, and tree traversal. Skip hard DP problems unless targeting FAANG. Spend more time on Python-specific skills and LLM integration patterns than algorithm puzzles.

How long should I prepare for AI coding interviews?

With a software engineering background: 2-4 weeks of focused practice. Focus areas: (1) Week 1-2: Python patterns and LLM API integration, (2) Week 2-3: Practice problems combining data and LLMs, (3) Week 3-4: Mock interviews and timed practice. If you're newer to Python, add 2-4 weeks for fundamentals first.

How do I succeed at AI take-home coding projects?

Key factors: (1) Read requirements carefully and meet all criteria, (2) Write clean, documented code with type hints, (3) Include a README explaining your approach and trade-offs, (4) Add basic tests showing your code works, (5) Don't over-engineer—match the scope to the time given. A clean, working solution beats a complex half-finished one.

How much time should I dedicate to coding practice daily?

1-2 hours daily is optimal for interview prep. Split between: 30 minutes on algorithm practice, 30 minutes on Python patterns, 30-60 minutes building mini LLM projects. Consistency beats marathon sessions. Most candidates see significant improvement in 3-4 weeks of daily practice.

I've signed up for cohorts before and dropped out. How is this different?

It probably isn't, and you should hold the money. Most cohort dropouts are people who couldn't articulate what they were shipping when they signed up. That's why the consult exists, and why I turn down most applications. If we get on the call and you can't tell me what you'll have shipped at the end of week 8, I'll point you to the AI Native Engineer community until you can.

I'm not pivoting careers. I want to build a product. Does this still work?

Yes, the cohort works for people shipping their first serious AI system whether the goal is to land a senior role or to launch a product. The shipped system serves both equally well.

Do I need prior AI experience?

You need to be able to code in Python or TypeScript. Complete beginners can follow the classroom they get access to before the cohort sessions to come in well-prepared.

What does it cost?

It's a four-figure investment that we discuss during the 30-minute consult, alongside whether the cohort is the right fit for your project.

Can I do this while working full-time?

Yes, most attendees do. The live session is one Tuesday a week and the async work fits around your existing schedule, as long as you can carve out roughly 6 hours a week.

I accept those who have the highest chance of success.

In the 30-minute call we discuss your goals and whether you are ready for the program.