Backend Developer

What is a Backend Developer?

A backend developer builds the part of a product nobody sees but everybody depends on. When you log in, search for something, or place an order, backend code decides what is allowed, where the data lives, and what happens next. The work is about modelling a problem correctly, storing data so it stays consistent, and exposing it through APIs that other developers — including frontend developers — can use without surprises.

• REST and GraphQL APIs
• Authentication and permission systems
• Database schemas and queries
• Payment and billing logic
• Background jobs and scheduled tasks

A high-level preview of the areas this journey covers. Your detailed roadmap comes next.

1. 1Programming fundamentals
2. 2A backend language such as Python, Java or Node.js
3. 3Git and GitHub
4. 4Databases and SQL
5. 5API design
6. 6Authentication and security basics
7. 7Caching and background jobs
8. 8Testing
9. 9Deployment and monitoring

• You like thinking about how a system fits together
• You enjoy logic and data more than visual design
• You are careful about correctness and edge cases
• You like problems with a definite right answer
• You want to understand what happens under the hood

Worth knowing before you commit. Every path has these.

• Mistakes can corrupt real data, so care matters more than speed
• Debugging spans services, queues and databases at once
• Security failures are quiet until they are expensive
• Designing a schema you won't regret takes experience
• Progress is less visible than on the frontend