CAREER SIMULATOR · FROM JUNIOR TO MIDDLE

Your first job as an ML engineer starts here

Not another lecture course, but a simulator: you get "hired" by the Datacore company and solve 23 real business problems — from your first EDA report to deploying a model to production and defending a project before the CTO.

Start for free See the curriculum
The first 2 modules are free, no card required. Then — $20/month.

Two minutes: the whole path from Junior ML to architect

Three tracks as one arc: classic ML on business problems, an agent closing an operational process, and a mock certification exam. Plus three real interview questions — the same ones the simulator uses. Pause any scene and read it at your own pace.

0:00

Who this simulator is for

We close the gap between "finished a course" and "can do the job": we teach work situations, not algorithms in a vacuum.

🎓

Course graduates

You finished Andrew Ng or a bootcamp, but interviews ask about real cases, data leaks and business-driven metrics. Here you'll gain that experience.

💼

First-year juniors

You're already on a team but feel the gaps: validation, imbalance, deployment, drift. The simulator is eighteen months of work experience, compressed.

🔄

Switchers from engineering and analytics

You know Python — what's missing is ML thinking: framing the problem, choosing the metric, and shipping a model to production. That's exactly what we train.

How it works

Every module is a work week at Datacore: a marketplace with a fintech product where you've been "hired" as a junior.

1

You receive a task from the team

Team lead Lena, senior Igor and PM Max set tasks the way it happens in real life: "the warehouse is overstocked", "the model fell apart in production", "marketing argues about discounts".

2

You study the theory for the task

Theory comes exactly at the task's scope, based on the best courses (Andrew Ng's ML and Deep Learning Specializations) — but translated into the language of work situations, with visual diagrams.

3

You solve the practice with a walkthrough

Real Python/sklearn/PyTorch code, typical pitfalls and a "senior's" code review: what's wrong with the split, where the leak hides, why the metric lies.

4

You pass the quiz and grow your grade

5–10 test questions with every answer explained. 70%+ passes the module. Complete all 20 core modules — and receive the Middle-track ML Engineer certificate.

The curriculum: 23 modules

From the first day at the office to defending a project before the CTO. The level rises gradually: Junior → Junior+ → Middle-track → Middle → Middle+.

01 First day: what ML is, the lifecycle, team roles FREE
02 Python and Pandas: your first EDA report on sales data FREE
03 Statistics and A/B tests: did the discount help? PRO
04 Linear regression: predicting delivery cost PRO
05 Classification: a customer churn model PRO
06 Quality metrics: why 99% accuracy is a failure PRO
07 Feature engineering: credit scoring PRO
08 Trees and ensembles: boosting vs the forest PRO
09 A production incident: validation and data leaks PRO
10 Hyperparameter tuning: Optuna without fanaticism PRO
11 Anti-fraud: 1:1000 imbalanced classes PRO
12 Clustering: customer base segmentation PRO
13 Recommender systems: "frequently bought together" PRO
14 Time series: demand forecasting for the warehouse PRO
15 NLP: auto-classification of support tickets PRO
16 Neural networks: PyTorch, backprop, overfitting live PRO
17 Computer vision: defect control on the conveyor PRO
18 ML System Design: designing the whole system PRO
19 MLOps: deployment, monitoring, data drift PRO
20 Finale: defending the project before the CTO + certificate PRO
21 Advanced · The Design Doc: problem space, error costs, reviews PRO
22 Advanced · Metric hierarchy, adversarial validation, baselines PRO
23 Advanced · System A/B, drift types, fallbacks, ownership PRO

Modules 21–23 are a bonus track based on the book "Machine Learning System Design" (Babushkin, Kravchenko, Manning). Every module includes visual diagrams: from gradient descent to recommendation architectures.

🤖 The second track: agentic engineering

From Junior to Senior AI Engineer. Twenty cases on building agentic assistants inside a real company — and taking them to market. One storyline: the CEO asks for a "marketing factory", you turn the idea into a working system.

A01 The CEO’s Monday idea: “let’s build a marketing factory” FREE
A02 Your first agent: a draft email from one CRM row FREE
A03 The inbox simulator: an agent triages campaign replies PRO
A04 Prompts are code PRO
A05 Grounding in company knowledge PRO
A06 How do you know it works PRO
A07 Workflow or agent? PRO
A08 The content factory: planner, writer, editor, fact-checker PRO
A09 Tools and integrations PRO
A10 Agent memory PRO
A11 Human in the loop PRO
A12 The $12,000 invoice PRO
A13 When the agent breaks PRO
A14 Debugging a bad run PRO
A15 The malicious email PRO
A16 Shipping agents PRO
A17 The improvement loop PRO
A18 Designing for trust PRO
A19 Unit economics and the CFO memo PRO
A20 Capstone: defending the platform PRO

The track is part of the same $20/month subscription — no extra cost. The first two modules are free, just like in the main course. The whole track earns a separate "AI Agent Engineer" certificate.

🏛 The third track: Claude Certified Architect prep

Twenty modules cover all thirty objectives of the official CCAR-F exam, distributed by domain weight. It ends with a mock exam: 60 questions in 120 minutes, a 720 threshold on a 100–1000 scale, and a report giving percent correct per domain — the shape of the real one.

C01 The loop that decides when to stop FREE
C02 Coordinator and subagents FREE
C03 Invoking a subagent and what to hand it PRO
C04 Multi-step workflows with enforced order PRO
C05 Agent SDK hooks PRO
C06 Decomposing a complex task PRO
C07 A tool the model gets right the first time PRO
C08 Distributing tools and wiring MCP servers PRO
C09 The built-in tools PRO
C10 CLAUDE.md: hierarchy and scoping PRO
C11 Slash commands and skills PRO
C12 Plan mode vs direct execution PRO
C13 Claude Code in CI/CD PRO
C14 Explicit criteria and few-shot PRO
C15 Structured output via tool use and JSON Schema PRO
C16 Validation, retries and feedback loops in extraction PRO
C17 Batching and multi-pass review PRO
C18 Context in long conversations and large codebases PRO
C19 Escalation, ambiguity and error propagation PRO
C20 Human review, confidence calibration and provenance PRO

The track is part of the same $20/month subscription — no extra cost. The first two modules are free. Completing the track and passing the mock exam earns a "CCAR-F Exam Ready" certificate.

Independent preparation. This course is not affiliated with Anthropic and is not an official certification; the CCAR-F exam is taken separately.

🎤 The interview simulator

A separate practice section: answer the question out loud — open the model answer — compare. That's how people prepare for real interviews.

🌱

Junior ML Engineer

12 screening and first-technical questions: ML basics, metrics, overfitting, validation. Free after registration.

⚙️

Middle ML Engineer

12 production questions: leaks, imbalance, A/B tests, drift, deployment. Everything separating "took a course" from "ran live systems".

🏗

ML System Design

8 full design-interview tasks — recommendations, anti-fraud, demand forecasting, search, ETA, scoring, moderation, LLM support — with framework-guided model answers.

Pricing

Start for free. Cancel the subscription anytime — your progress is kept.

Starter
$0
  • Modules 1–2 in full
  • The Junior interview track (12 questions)
  • Quizzes with answer explanations
  • Progress saving
  • No credit card
Start for free

FAQ

Do I need programming experience?

Basic Python — yes (variables, functions, loops). Pandas, sklearn and PyTorch are introduced gradually inside the modules. If Python is new to you, take any one-week intensive in parallel.

How is this different from Coursera courses?

Courses teach theory by topic. We teach work situations: "the model fell apart in production — find out why", "marketing demands a rollout — prove it's wrong". The theory inside rests on the classic curricula (Andrew Ng and others), but the structure is a career, not a textbook's table of contents.

How long does it take?

A module takes 45 minutes to 3 hours. At a pace of "2 modules a week" the whole path to the certificate takes 10–12 weeks.

What certificate do I get?

There are three, and they are independent. "Middle-track ML Engineer" is issued for the 20 core modules and the final exam. "AI Agent Engineer" is issued for the 20 modules of the agentic engineering track. "CCAR-F Exam Ready" is issued for the 20 modules of the certification track plus a mock exam scored 720 or higher. All are personal, carry a unique ID, and can be printed or added to LinkedIn. Note that the third attests readiness for the Claude Certified Architect exam rather than replacing it — only Anthropic issues the official certification.

Can I cancel the subscription?

Yes, anytime. PRO access remains until the end of the paid period, and your progress and certificate are kept forever.

Land your first ML job — today

Registration takes 30 seconds. The first two modules are waiting for you, free.

Start the simulator →