What AI Frameworks
Do Employers Want?

Job postings list dozens of frameworks. Learn which ones actually matter
and which are just copy-paste from outdated templates.

Framework Paralysis Is Killing Your Progress.

New frameworks launch weekly. By the time you master one, three more appear on job postings.

Job descriptions list 15 frameworks. Nobody knows all of them—not even the hiring managers.

You spent months learning a framework that employers stopped asking for six months ago.

Focus on What Actually Gets You Hired.

The World-Class AI Engineer Cohort

I analyze hundreds of AI job postings monthly. Here's the reality: employers want 3-4 core frameworks deeply, not 15 superficially. Learn which frameworks have staying power and which are just buzzwords.

1

Decode Job Postings

Learn what employers actually need vs. wish-list padding

2

Master the Core Stack

Focus on high-demand, transferable frameworks

3

Demonstrate Real Proficiency

Build projects that prove your framework expertise

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.

Every Month Learning the Wrong Framework Is a Month Wasted

8
Weeks
6
Seats per Cohort
24
Live Hours with Zen

Frequently Asked Questions

What are the most in-demand AI frameworks in 2026?

Based on current job market analysis: 1) LangChain/LangGraph for agentic applications—appears in 60%+ of AI engineering roles, 2) PyTorch for any ML-adjacent work, 3) FastAPI/Flask for API development, 4) Vector databases (Pinecone, Weaviate, Chroma) for RAG applications, 5) Cloud AI services (AWS Bedrock, Azure OpenAI, GCP Vertex). The key insight: employers want depth in orchestration frameworks (LangChain) and practical deployment skills over obscure ML libraries.

Should I learn LangChain or its alternatives like LlamaIndex?

Learn LangChain first—it has the highest job market demand and the largest ecosystem. Once proficient, learning alternatives like LlamaIndex or Haystack becomes straightforward since concepts transfer. Many employers list 'LangChain or equivalent,' meaning they want the conceptual understanding. Focus on one deeply rather than knowing five superficially.

Should I learn many frameworks or master a few?

Master a few. Here's why: job interviews test depth, not breadth. A hiring manager would rather see one complex LangChain project with custom agents, memory management, and production deployment than five tutorial-level projects across different frameworks. Deep expertise in high-demand frameworks beats shallow knowledge across many.

How do I keep up with framework changes without burning out?

You don't need to keep up with everything. Follow these rules: 1) Ignore frameworks until they appear in multiple job postings for 3+ months, 2) Focus on concepts over syntax—if you understand RAG deeply, the framework is just implementation, 3) Update your skills annually, not monthly, 4) Watch what well-funded AI companies are hiring for—they set trends others follow.

Which frameworks should my portfolio projects demonstrate?

Your portfolio should show: 1) LangChain/LangGraph for at least one agentic or RAG project, 2) A vector database implementation, 3) API development and deployment (FastAPI preferred), 4) Basic ML workflow (even if using pre-trained models). Skip: obscure academic frameworks, deprecated tools (looking at you, early AutoGPT clones), and anything without production deployment.

Do startups and enterprises want different frameworks?

Yes, with overlap. Startups favor: rapid iteration tools (LangChain, Vercel AI SDK), open-source models (Llama, Mistral), and cloud-agnostic solutions. Enterprises favor: cloud-native AI services (Azure OpenAI, AWS Bedrock), governance-friendly frameworks, and established tools with enterprise support. Target your learning to your desired employer type, but core LangChain skills transfer to both.

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.

How much time will this take?

You'll spend 3 hours every Tuesday in the live session and roughly 3 hours of async work in between, for 8 weeks. The Tuesday session time is fixed.

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.