Learning path

Backend Developer Roadmap

Free courses that cover what every backend job assumes: a server-side language, a database, version control, a terminal and containers. You write and run real code on every lesson, and each course ends with a free certificate.

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2,463,124+ codders enrolled across these courses

498 lessons547 challenges2,602 quiz questions

Beginner friendly
AI-assisted coding help
Hands-on interactive lessons
Audio narration on every lesson
Quizzes to test your knowledge
8 free certificates along the path

The backend developer roadmap, step by step

5 courses8 sections498 lessons547 challenges2,602 quiz questions

Each step is an existing Coddy course. Take them in order, or start from the one you are missing - progress is saved per course either way.

1
Step 1
PythonDedicated page
Start this stepStartVariables, control flow, functions, data structures, files and errors, then classes and modules. The server-side language for this path; Go is the alternative if you prefer a compiled, typed one.Start Dedicated page
3 sections, in order
219 lessons268 challenges1,070 questions6 projects
2
Step 2
SQL and databasesDedicated page
Start this stepStartSELECT, WHERE, JOIN, GROUP BY, subqueries, indexes and schema design against live tables. The half of backend work that happens in the database.Start Dedicated page
2 sections, in order
1. Fundamentals72 lessons76 challenges360 questions1 project
2. Beyond the Basics27 lessons28 challenges167 questions
99 lessons104 challenges527 questions1 project
3
Step 3
Linux and the command lineDedicated page
Start this stepStartFiles, permissions, processes, pipes and bash basics. Backend code runs on Linux servers, and debugging it means being at home in a terminal.Start Dedicated page82 lessons80 challenges440 questions3 projects
4
Step 4
Git and version controlDedicated page
Start this stepStartCommits, branches, merging, conflicts, remotes and undoing mistakes. Every backend team ships through Git; every code review happens in it.Start Dedicated page58 lessons55 challenges370 questions2 projects
5
Step 5
Docker and containersDedicated page
Start this stepStartImages, Dockerfiles, volumes and networking. How a backend service is packaged so it runs the same on your laptop, in CI and in production.Start Dedicated page40 lessons40 challenges195 questions1 project

What you get

Everything you'll use to learn to code

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playground.js

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1const greeting = "Hello, Coddy!"

2function sayHi(name) {

3 return greeting + " " + name

Test #1

Test #2

Test #3

Input

"Alex"

Output

"Hello, Coddy! Alex"

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Every way to learn

Read, listen, test yourself, ask the AI, or look up anything you've already covered. Every lesson meets you where you are.

Intro to Variables

Audio

A variable is a named container that stores a value you can reference later in your program.

In Python, you create one by writing the name, an equals sign, then the value you want to store.

The value can change over time - reassigning the name simply points it to a new value.

1xSarah

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Earn certificates for every course you complete. Add them to your LinkedIn profile and resume to showcase your coding expertise to employers.

Certificate of Completion

This certifies thatJohn Doehas successfully completed

Python Fundamentals

DateJan 2026

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Why start backend development with Coddy

You build the real thing. Real Python programs, real SQL against live tables, real Git commits and real Docker images, all in the browser - the same loop a backend developer runs a hundred times a day.
Foundations before frameworks. Django, Express and Spring are a few weeks each once you have a language, SQL and Git; they are months of confusion without them. This path is the part frameworks assume.
AI hints that read your failing code and last error and point at the cause - the off-by-one, the missing JOIN, the wrong branch - without pasting the solution.
One free certificate per course, each verifiable at its own URL and shareable on LinkedIn.

Frequently asked questions about becoming a backend developer

What does a backend developer actually do?

A backend developer writes the code that runs on the server rather than in the browser: the APIs a web or mobile app calls, the logic that decides what happens when a user places an order, and the code that reads and writes the database. Day to day that means a server-side language, SQL, Git, a terminal and, increasingly, the containers the code ships in - which is exactly what this path covers.

Which language should I learn first for backend development?

Python, for most people: it is readable, it is used for backends at every size of company, and it doubles as a scripting language for the automation around them. Go is the other strong choice on Coddy, especially if you are drawn to infrastructure and high-performance services. Pick one, finish it, and the second is far quicker.

Do I need to learn SQL to be a backend developer?

Yes. Almost every backend application sits on a relational database, and an ORM only hides SQL until the first slow query or the first data migration. Knowing how to write a JOIN, an index-friendly WHERE and an aggregate by hand is one of the clearest signals of a backend developer who understands their system.

Does this path teach a web framework like Django, Flask or Express?

Not yet. The path deliberately stops at the foundations a framework assumes - a language, SQL, Git, the terminal and Docker - because those are what most self-taught backend developers are missing when a framework tutorial stops making sense. Framework courses are on the curriculum roadmap and will join this path as new steps.

How long does it take to become a backend developer?

This path is roughly 500 lessons. At an hour a day, Python takes about six weeks, SQL two to three, and Git, Linux and Docker about a month together, so three to four months to finish the foundations. Job-ready usually means adding a framework and one real project on top of that.

Is the backend path free, and do I get a certificate?

Every course on the path is free, including the lessons, the browser-based editors and terminal, the AI hints and the certificates. You get one free certificate per finished course - Python, SQL, Git, Linux and Docker - each verifiable at its own URL.

Other learning paths

The same courses, arranged for a different role. Progress carries over: a course finished on one path counts on every path that includes it.

All learning paths

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