Learnixo
The free platform that gets you to senior engineer level

Stop Learning Tools. Start Building Systems.

Understand production systems deeper than 90% of developers — real architecture, real code, zero paywalls.

No black boxes. No toy examples. From your first route to your first production deployment.

Used by developers who landed senior roles1426+ production-grade lessons300+ interview Q&As built in
120+CoursesStructured paths
1260+LessonsProduction-grade
16+Real ProjectsClone & ship
100%Free, ForeverNo paywall, ever

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Real Output, Not Toy Code

What You'll Actually Build

Every course ends with a working system you can clone, run, and show in an interview.

BackendClinic Appointment API
$POST /api/v1/appointments
→ 202 Accepted {"appointmentId":"APT-91","status":"PROCESSING"}
$GET /api/v1/clinics/CLN-1/metrics
→ {"confirmed":142,"completed":98,"cancelled":7,"funnel":{"rate":"69%"}}
InfrastructureTerraform AWS Deploy
$terraform apply -var-file=prod.tfvars
aws_lambda_function.api: Creating...
aws_ecs_service.api: Creating...
Apply complete! Resources: 24 added, 0 changed, 0 destroyed.
Event-DrivenKafka Saga Flow
AppointmentCreated saga-id: S-441
↳ InsuranceVerified patient: PAT-901
↳ ConfirmationSent email: p@clinic.io
✓ CONFIRMED [saga complete in 284ms]

The Reality

The Real Reason You're Still Stuck

It's not your ability. It's the content. Most courses are built to sell subscriptions, not to make you dangerous.

The Problem

  • YouTube tutorials that never explain the 'why'
  • Paid platforms charging $200/month for basics
  • Courses that use toy examples, not real code
  • No structure — random videos, no clear path
  • Interview prep sold as separate expensive add-ons
  • Zero production patterns or architecture guidance

The Learnixo Way

  • Deep-dive lessons explaining every decision
  • Completely free — every course, every lesson
  • Real production code from day one
  • Guided paths from beginner to senior engineer
  • 300+ interview Q&As built into every course
  • Clean Architecture, CQRS, DDD — the real stack

Built For You If…

Who Is Learnixo For?

This isn't a platform for everyone. It's built for a specific developer — one who wants depth, not just answers.

Developers tired of toy examples

Developers tired of toy examples

You've done the beginner tutorials. You build CRUD apps fine. But real systems — auth, queues, deployments — still feel like a black box.

You'll understand every layer of a production system.
Engineers prepping for senior interviews

Engineers prepping for senior interviews

System design rounds, architecture questions, 'tell me about a time you built X' — most courses don't prepare you for any of this.

You'll have real projects and patterns to talk about.
Builders who want full control

Builders who want full control

You don't want to just use a framework — you want to understand the decisions behind it. Why CQRS? Why Kafka? Why JWT over sessions?

You'll know the trade-offs, not just the syntax.
Self-taught devs levelling up

Self-taught devs levelling up

You're productive but missing the structured foundation. Clean Architecture, DDD, testing, CI/CD — things bootcamps skip entirely.

You'll fill the gaps that are holding your career back.

Simple Process

How It Works

From zero to shipping production code in three steps.

Pick a Course
Step 01

Pick a Course

Choose from structured learning paths across React, .NET, SQL, AI, and DevOps. No account needed.

Build & Practice
Step 02

Build & Practice

Follow step-by-step lessons with real code, then reinforce with practice tasks and lesson checkpoints.

Ship Real Projects
Step 03

Ship Real Projects

Clone and run complete production projects with full setup guides — from local dev to deployment.

From Zero to Shipping

Your First Week on Learnixo

No fluff, no filler. Here's exactly what you'll have built by the end of each day.

Day 1

Environment set up, first REST API running

  • Dev toolchain configured
  • Hello World → real endpoint
  • First working GET/POST route
Day 3

Full CRUD app with JWT auth

  • Database connected with ORM
  • JWT login and protected routes
  • Error handling and validation
Day 7

Production-grade system deployed

  • CI/CD pipeline on GitHub Actions
  • Tests at 80%+ coverage
  • Docker image shipped to cloud

Recommended Path

Start Here 👇

New to dev? Follow this 3-step path to go from zero to full-stack. Each course builds directly on the previous one.

Most Popular

Top Courses Right Now

Thousands of developers have used these courses to land their next role.

AI/ML/NLP Research Track

Beginner to Advanced

AI/ML/NLP Research Track
4.9(1.3k students)
Beginner → Advanced16 lessons14h 30m

A complete practical path from Python and Kaggle fundamentals to machine learning, NLP, transformers, multilingual assistants, and beginner research workflow.

1.3k enrolledStart Free
Bestseller
react

React Development

Frontend Engineering

React Development
4.9(2.3k students)
Beginner → Senior15 lessons6h 30m

Master React from first component to production-grade apps. Covers hooks, state management, TypeScript, performance, testing, and interview prep.

2.3k enrolledStart Free
In Demand
dotnet

.NET & C# Development

Backend Engineering

.NET & C# Development
4.9(1.9k students)
Beginner → Senior229 lessons75h

Full C# and .NET path: language foundations, quality code, all GoF design patterns, then build the OrderFlow API with DI, EF Core, JWT, CQRS, Redis, SignalR, Polly, OpenTelemetry, and Docker.

1.9k enrolledStart Free
Bestseller
sql

SQL Mastery for Data Engineering

Data Engineering

SQL Mastery for Data Engineering
4.9(1.7k students)
Beginner → Expert8 lessons7h 20m

Master every SQL skill needed for data engineering roles — JOINs, aggregations, CTEs, window functions, query optimisation, data transformation, and 300 interview-ready questions.

1.7k enrolledStart Free

Developer Stories

What Developers Are Saying

I went from copying Stack Overflow snippets to writing production APIs with proper auth, error handling, and CI/CD. The .NET course is the real deal.

MT

Marcus T.

Backend Engineer → Senior at a fintech startup

Every lesson shows you the pattern AND explains why. That 'why' is what was missing everywhere else. My interview performance jumped immediately.

PK

Priya K.

Junior Dev → Full-Stack Engineer

The Kafka EDA project alone was worth more than a $400 Udemy course. I cloned it, ran it, and explained it confidently in my system design interview.

JR

Jordan R.

Software Engineer interviewing at FAANG

Real-World Projects

Don't Just Learn. Build & Ship.

Browse production-grade projects with complete step-by-step guides. Clone the repo, follow the setup guide, and understand every line — this is learning by doing at the senior level.

  • Full setup and run guides with real commands
  • Production architecture walkthroughs
  • Technologies used in actual enterprise systems
  • Runs locally — no cloud account needed
Browse All Projects

Why Learnixo?

Other platforms charge hundreds. We don't — and the quality is the same.

Paths, Not Random Articles

Every course has a deliberate order. You go from zero to senior without wondering what to learn next.

No Black Boxes

Every decision is explained. Why CQRS? Why JWT? Why that folder structure? You understand the 'why', not just the 'how'.

Interview-Ready from Day One

300+ real interview Q&As built into every course. Not a separate product — part of the learning.

Take Back Control

Stop paying $200/month to rent access to knowledge. Every course, every lesson, every project — permanently free.

Start in Seconds

No account. No onboarding flow. No email required. Open a lesson and start building in seconds.

Actively Maintained

New courses and lessons added regularly. Content is kept current — not outdated tutorials from 2019.

Built by Engineers, for Engineers

Content Written by Someone Who Has Shipped It

AH

Asma Hafeez

Senior Systems Engineer · .NET · Azure · AI · Healthcare

FHIR / HL7AzureProduction .NETHealthcare AI

8+ years engineering production healthcare platforms — FHIR interoperability, Azure cloud infrastructure, real-time AI pipelines, and .NET APIs. Every lesson reflects patterns from real enterprise codebases, not academic exercises.

Privacy first

No tracking, no account required — your progress stays in your browser.

Healthcare AI expertise

Built by a senior engineer with deep experience in FHIR, Azure healthcare, and production AI.

Production-grade content

Lessons cover Clean Architecture, CQRS, DDD, JWT auth, Redis caching, and real CI/CD pipelines.

Learn by building

Every concept is anchored to working code you can clone, run, and ship.

Structured Journeys

Learning Paths

Curated sequences of courses — from zero to job-ready. Pick a path, follow it in order, and know exactly what to learn next.

Beginner → Job-Ready

30-Day Program

Become a Backend Developer

Go from beginner to job-ready backend developer in 30 structured days. Build 4 real projects, deploy to production, and build a portfolio that gets you hired.

4 courses ~60hStart
Beginner

Start Here

Coding Foundations

The complete beginner path — HTML, CSS, JavaScript, TypeScript, and Git. Build real web pages and small apps from lesson one.

5 courses 18hStart
Beginner → Intermediate

Learning Path

Python Developer

Master Python from first print statement to production APIs — syntax, data structures, OOP, FastAPI, databases, and testing.

4 courses 22hStart
Beginner → Senior

Full Stack Path

Web Development

Go from HTML to full-stack developer — React frontend, Node.js or .NET backend, SQL database, and cloud deployment.

6 courses 32hStart
Beginner → Intermediate

Data Engineering Path

Coding for Data

SQL, Python for data, cloud data warehouses, ETL pipelines, and analytics dashboards.

5 courses 25hStart
Beginner

Learning Path

Front-End for Beginners

Build beautiful, interactive web pages from scratch. No experience needed — start with HTML and finish with a React portfolio.

4 courses 15hStart
Intermediate

Systems Path

Understand Linux Deeply

Stop guessing what's happening on your servers. Master the Linux filesystem, processes, networking, shell scripting, and system administration.

4 courses 20hStart
Intermediate → Senior

Systems Engineering Path

Build Your Own System

Design and build production systems from scratch — distributed architecture, event-driven patterns, databases, observability, and deployment.

6 courses 35hStart
Intermediate → Senior

Senior Engineer Path

Go Beyond Tutorials

Stop copying tutorial code. Learn the patterns, principles, and architecture decisions that separate senior engineers from juniors.

5 courses 28hStart
Intermediate

AI Engineering Path

AI Developer

Build production AI applications — LLMs, embeddings, RAG pipelines, agents, and AI-powered APIs.

4 courses 18hStart
Mid → Senior

Interview Mastery

Senior .NET Interview in 4 Weeks

A structured 4-week path for senior .NET and C# interviews — modern language features, ASP.NET Core architecture, EF Core and distributed patterns, three .NET system design case studies, and daily simulator practice.

4 courses ~28h study + practiceStart
Intermediate → Senior

Interview Mastery

GenAI Interview in 14 Days

Structured hub on Learnixo: LLM basics, LangChain, RAG, MCP, Azure OpenAI, then practice in the interview simulator.

4 courses ~18h read + practiceStart

All Disciplines

Every Course We Offer

🔥 Most Popular
ai-for-developers

AI for Developers

Generative AI

AI for Developers
4.9(3.2k students)
Beginner → Intermediate6 lessons2h 30m

Understand how AI actually works — LLMs, tokens, embeddings, the OpenAI API — then build your first AI-powered app. No ML degree required.

3.2k enrolledStart Free
🔥 Hot & New
prompt-engineering

Prompt Engineering

AI Skills

Prompt Engineering
4.8(2.2k students)
Beginner4 lessons1h 15m

Go from basic prompts to advanced techniques — few-shot, chain-of-thought, ReAct, structured output, and building reliable AI pipelines.

2.2k enrolledStart Free

AI/ML/NLP Research Track

Beginner to Advanced

AI/ML/NLP Research Track
4.9(1.3k students)
Beginner → Advanced16 lessons14h 30m

A complete practical path from Python and Kaggle fundamentals to machine learning, NLP, transformers, multilingual assistants, and beginner research workflow.

1.3k enrolledStart Free

Build PharmaBot AI

All 10 Career Skills in One Project

Build PharmaBot AI
4.9(847 students)
Intermediate → Advanced13 lessons8h 30m

Build a production pharmacist chatbot from scratch — covering every skill that matters for an AI systems engineer in 2026: AI agents, RAG pipelines, practical LLM integration, FastAPI backend, prompt engineering, vector search, Azure cloud, security & privacy, team collaboration, and production delivery. One real project. Ten real skills. Fully deployed.

847 enrolledStart Free

Angular: Zero to Senior

Frontend Engineering

Angular: Zero to Senior
4.9(1.2k students)
Beginner → Senior11 lessons8h 30m

Master Angular from environment setup to production-ready apps. Covers components, directives, forms, routing, HTTP, NgRx state management, performance, testing, and full interview prep.

1.2k enrolledStart Free
Bestseller
react

React Development

Frontend Engineering

React Development
4.9(2.3k students)
Beginner → Senior15 lessons6h 30m

Master React from first component to production-grade apps. Covers hooks, state management, TypeScript, performance, testing, and interview prep.

2.3k enrolledStart Free
New
typescript

TypeScript: Zero to Hero

Frontend Engineering

TypeScript: Zero to Hero
4.8(1.9k students)
Beginner → Intermediate3 lessons1h 40m

Go from JavaScript to fully typed TypeScript — types, interfaces, generics, utility types, type narrowing, and TypeScript with React in production.

1.9k enrolledStart Free
New
nextjs

Next.js Full Course

Full-Stack React

Next.js Full Course
4.9(1.5k students)
Intermediate3 lessons2h

Build full-stack apps with Next.js App Router — Server Components, data fetching, API routes, auth, deployment to Vercel and Azure.

1.5k enrolledStart Free

Prove What You Know

Completion Certificates & Real Outcomes

Finish a course and get a shareable completion certificate — one you can link on your LinkedIn, paste into a portfolio, or show in an interview. Not just a badge. Proof that you built real systems.

  • Shareable certificate URL for each completed course
  • LinkedIn-ready — add directly to your profile
  • Course name, completion date, and skills listed
  • Verifiable link — employers can check it's real
Start earning certificates

Certificate of Completion

Learnixo · learnixo.io

This certifies that

Alex Chen

has successfully completed

.NET & C# Full-Stack Development

32 lessons · 12h of content · April 2026

C#ASP.NET CoreEF CoreCQRSJWT AuthDocker
Verified · learnixo.io/cert/abc123

Join the Learnixo Community

Ask questions, share what you're building, and get unstuck fast. Thousands of developers learning together — it's free to join, just like the courses.

100% Free · No account · No black boxes

Take Control of Your Career.
Build Systems. Ship Code. Get Hired.

Every lesson is free. Every project is real. Every pattern is production-grade. Stop consuming content — start shipping systems.

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Read by developers from

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