REACTIVDEVS
Write software that survives production. Not just the tutorial.

ONLINE COURSE FOR DEVELOPERS

Write software that survives production. Not just the tutorial.

This course came out of a hundred 1:1 mentoring sessions. Git, tests, the API layer, architecture, CI/CD and soft skills. Everything your employer expects and no YouTube tutorial tells you.

$390$260early-bird price
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FROM THE FOUNDER

Why this course exists

I have delivered over a hundred 1:1 sessions with more than twenty developers, from complete beginners to seniors. The same thing came up every time: they can get code written, but nobody ever showed them what a properly run project looks like.

No git discipline, no tests, no pipeline, no structure. And above all no confidence to defend any of it in an interview or a code review. Tutorials never cover this, because in a tutorial nothing ever goes wrong.

This course is that mentoring, recorded. Same topics, same order, same format. We sit over the code together, I share my screen and explain why we do it this way and what would happen otherwise.

Jakub Kraus, founder of ReactivDevs

PAIN POINTS YOU KNOW

Does any of this sound familiar?

You can build a feature, but you have never seen what a properly run project looks like.

How the course fixes it: We build a repo from an empty folder: TypeScript, lint, husky, CI. You see every step and learn why it is there.

You use git like an incantation and your stomach drops at a rebase or a conflict.

How the course fixes it: A whole module of git, live. I break things on purpose and we resolve the conflicts together until it clicks.

You do not write tests, because you do not know what to test.

How the course fixes it: From unit tests to E2E in Playwright. You will learn to spot a test that catches nothing at all.

You hand-write fetches, types and state, and it costs you hours.

How the course fixes it: Swagger as a contract, a generated client and React Query. You will watch a pile of code simply disappear.

In an interview you freeze on the question of why you chose that approach.

How the course fixes it: Every decision is explained together with its alternative, so you can defend it in your own words.

13 modules from setup to a new job

Let's cover how it works

01

A professional repo setup

Why Vite over Next.js, TypeScript in strict mode, ESLint and Prettier that do not fight, scripts and husky. A repo you cannot commit broken code into.

Setup

02

Git for real

What actually happens on commit, team git flow, rebase versus merge, conflicts live, and a pull request a colleague can read in ten minutes.

Git

03

React as a craft

Hooks without superstition, where a component boundary belongs, custom hooks and a generic component via useController. No more files nobody can read.

React

04

Forms

react-hook-form and Zod as the single source of truth, conditional validation with superRefine, dynamic arrays and error states. The core of most business apps.

Forms

05

The API layer

Swagger as a contract, a generated client via Orval, React Query, a query key builder, invalidation, optimistic updates, pagination and MSW. Zero hand-written fetches.

API

06

Authentication

Login and logout flow, httpOnly cookie versus localStorage and the attacks it prevents, OIDC and Keycloak from the frontend, protected routes and refresh tokens.

Auth

07

Architecture and clean code

Clean code in practice, the design patterns you actually use, state management, clean architecture on the frontend, modularization, monorepos and microfrontends.

Clean

08

Testing

What to actually test, unit tests in Vitest, component integration tests, E2E in Playwright and a debug screen instead of Storybook. Tests that catch real bugs.

Tests

09

CI/CD and operations

GitHub Actions from scratch, a quality gate in the pipeline, preview deploys per PR, secrets via Google Secret Manager and SOPS, code review in practice.

CI/CD

10

Next.js versus SPA

SPA, SSR, SSG and ISR without the marketing. When Next.js is overkill and when Vite with React Query is enough. A decision you can defend.

SSR

11

AI on a production project

Where AI genuinely saves time and where it slows you down, three security tiers, AI in code review and what you still have to write yourself. The bridge to AI Developer.

AI

12

Soft skills

How to ask for money, taking feedback, 1:1s with your lead, team conflict, healthy versus broken process, and a recorded role-play defending a technical decision.

Soft

13

Career

Your LinkedIn profile section by section, reading job ads, a portfolio repo, the technical interview and the coding task. This is where it all pays off.

Career

FREE SAMPLE

Look inside before you pay

The full outline of all 13 modules plus four complete lessons: a pull request that can actually be reviewed, an API layer with no hand-written fetches, what to actually test and how to ask for money. 11 pages.

DOWNLOAD THE SAMPLE (PDF)

No email, no signup. Just take it.

VALUE INCLUDED

Everything you get

The complete course, 13 modules and 46 lessons

$565

Starter repo with a production setup and quality gates

$127

Reference project from an empty repo to deployment

$171

Checklists for code review, pre-launch and interviews

$83

Soft skills and salary negotiation module

$127

Lifetime access and content updates

$97

Total value

$1,170

Waitlist price

$260
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COMPARISON

Code that works versus code that lasts

Without the course

The code works but you cannot explain why

Git is a lottery and you avoid rebase

You skip tests, users find the bugs

You deploy by hand and by prayer

Interviews expose the gaps in principles

You cannot ask for the money you deserve

With the course

You can defend every decision

Git holds no fear, rebase and conflicts included

Tests catch bugs before your users do

Every PR is checked and deploys itself

You answer from practice, not from definitions

You walk into the salary talk prepared

RESULTS FROM 1:1 MENTORING

What the people I mentored say

20+

clients in 1:1 mentoring

100+

1:1 lessons delivered

28

sessions with the longest client

Long

Senior full-stack developer · 16 sessions

Starting point
Broad awareness of new tech, but plenty of it he had never done for real. His company had no process.
What we worked on
A testing strategy from unit tests to E2E in Playwright, GitHub Actions, secret management, clean code and clean architecture, microfrontends, state management. Plus soft skills: negotiating pay, practising 1:1s and conflict situations.
Outcome
A step up to senior level and, above all, confidence. He can defend his decisions and proposed process changes to his own company.

Honza

Mid-level frontend developer · 12 sessions

Starting point
He knew React but lacked confidence. At work they pushed logic onto the frontend through Next.js even where it did not belong.
What we worked on
A mock interview, React deep dives, the Next.js versus Vite and React Query decision, MSW, his own app in a monorepo, pair programming on data fetching, design patterns and TypeScript, preparation for the coding task.
Outcome
A new job as a strong mid-level developer and a significantly better salary.

Martin

Junior React developer · 22 sessions

Starting point
Coming from the jQuery world. Hand-written fetches, almost nothing on authentication, self-taught from tutorials.
What we worked on
React Query and a generated client from Swagger, login and logout through mutations, react-hook-form and Zod, a generic Input via useController, three sessions on git alone, CI/CD and GitHub Actions, testing, Firebase, Next.js, interview preparation.
Outcome
A complete move from jQuery to React, the right tech stack and a real grasp of the principles. A 180-degree turn and a well-paid junior React developer job, even in this market.

Tobiáš

Entry level, moving off Drupal · 10 sessions

Starting point
Drupal, CSS and JavaScript. React from absolute zero.
What we worked on
Starting a project in Vite, hooks and custom hooks, react-hook-form and Zod, his own FormInput component, React Router and layouts, Swagger and Orval, login and logout, pipelines. Plus working with Cursor.
Outcome
He built an app from scratch, got the React fundamentals down and went looking for a more challenging role.

Zuzka

Junior developer, moving off Angular · 6 sessions

Starting point
An Angular background, no React at all. She wanted to stop second-guessing herself and gain confidence.
What we worked on
Getting into React and state, an Angular versus React comparison, interview preparation, Orval and React Query instead of a hand-written client, query keys and invalidation, working with git.
Outcome
Production-ready fundamentals, real confidence and a new job. Genuinely sharp.

ZERO RISK

14-day money-back guarantee

Go through the course. If within 14 days you find it did not deliver what I promise, email me and I will refund you. No questions asked. I carry the risk, not you.

THE WAITLIST

The course is done, I am recording it

The content is taught and proven on real people, and I am turning it into video right now. Join the waitlist and you will hear the launch date first. I hold the early-bird price of $260 instead of $390 for you. Joining is free and commits you to nothing.

$390$260early-bird price
JOIN THE WAITLIST

Free, no commitment · Early-bird price held · No spam

BEFORE YOU JOIN

Frequently asked questions

The content is finished and already taught; I am recording the lessons now. People on the waitlist hear the date first and get the early-bird price.