Backend: The server-side part of an application that handles logic, data, security and communication with databases and other services.
Example
Checking the password on the server and creating a login session is backend work.
Why Backend matters for IT interns
Knowing whether a bug is in the frontend or backend saves time when you start debugging.
Where you will hear it
You will hear this term in development teams, in code reviews and technical discussions, and in technical interviews. If someone uses it and you are not sure what they mean in your project, it is completely fine to ask; every team uses terms a little differently.
Related terms
- API: A defined way for one piece of software to talk to another.
- Authentication: Checking who someone is — usually with a password, an OTP or "Sign in with Google".
- Authorization: Checking what someone is allowed to do after they have logged in.
- Code Quality: How easy code is to read, understand, test and change — not just whether it works.
- Code Review: When teammates read your code changes before they are merged, to catch problems and suggest improvements.
- Compiler: A tool that converts the code you write into something the computer can run, and reports mistakes before the…
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Related guides
- Which Technology Should I Learn for an IT Internship?
- Frontend vs Backend for an Internship
- Technical Interview Questions for Freshers
Frequently asked questions
What is Backend?
The server-side part of an application that handles logic, data, security and communication with databases and other services.
What is an example of Backend?
Checking the password on the server and creating a login session is backend work.
Why does Backend matter for IT interns?
Knowing whether a bug is in the frontend or backend saves time when you start debugging.
Explore more internship terms
The IT Internship Glossary explains 199 terms you will hear before and during your internship, with simple definitions and real examples.
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About the author
Dhaivat has 16+ years of experience in the IT industry, working on AI and cloud technologies, project delivery, and engineering leadership. He has interviewed and mentored many interns, wrote The Lost Intern, and runs the non-commercial Career Impact Initiative, mentoring students for free.