Backend Developer (Python)
A Python backend developer builds the APIs and services behind an app: the business logic, the data and how it all runs in production.
- Design and build REST endpoints
- Model data and write SQL that stays fast as data grows
- Add caching, background jobs and authentication
- Debug and improve services running in production
- A REST API with authentication and pagination
- A SQL schema with indexes and migrations
- A containerised service with Docker
Where it leads: Senior backend engineer, platform or data engineering, then system design and architecture.
Every skill, at the level the job needs
Updating… · change the level or company to see how it shifts
api-design
core- HTTP URL
- What are APIs
- Content Negotiation
- HTTP: HyperText Transfer Protocol
- HTTP messages
- Understand TCP / IP
python
core- Type casting
- Basic Syntax
- Exceptions
- Exception handling
- Basic data types
- Variables
sql
core- Relational DB theory
- Relational Data Model
- RDBMS Benefits and Limitations
- SQL and Databases
- NoSQL DBs
- Basics SQL
git-github
core- git init
- What is Version Control?
- Why use Version Control?
- git config
- Local vs Global Config
- Git
backend
core- HTTP: HyperText Transfer Protocol
- Domains
- DNS
- Browsers
- Frontend
- Why use Rust?
datastructures-and-algorithms
core- Language Syntax
- Control Structures
- Python
- Pseudocode
- Pseudocode basics
- Functions
What the levels mean
- L1 · AwareKnows what it is and when it's used
- L2 · BasicsCan use it with guidance
- L3 · WorkingUses it independently on the job
- L4 · StrongHandles hard cases, reviews others
- L5 · ExpertDesigns with it, teaches it
Interviews, by kind of company
Your route adds an interview track that matches the company you choose.
Large IT services firms: aptitude, fundamentals, technical and HR rounds.
Online assessment, coding rounds, a design round.
Hard timed coding rounds, system design, behavioural interviews.
Questions
What does a Backend Developer (Python) need to know?
API Design, Backend Developer, Python Developer, SQL Roadmap at a working level, plus Docker Roadmap, Learn Git and GitHub, Linux Roadmap, PostgreSQL DBA, Redis Roadmap. The skills section above lists every one with its level.
How long does it take to become a Backend Developer (Python)?
About 387 hours of study from scratch. At 10 hours a week that's roughly 39 weeks; anything you already know is skipped after the readiness test.
I already know some of this. Do I start from zero?
No. The optional readiness test finds what you already know and your route skips it.
Does the route change for product companies or senior roles?
Yes. Choose your level and the kind of company above: the skills and target levels adjust, for example deeper data structures and system design for product companies.
Other roles in the Backend track
They share many skills with this one, so progress carries over if you switch.
Services and APIs with Java and Spring Boot.
APIs with Node.js and Express.
Fast, concurrent services in Go.
Services and APIs with C# and ASP.NET Core.