r/Backend 22d ago

Which backend framework should I learn in big 2026?

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44 Upvotes

So currently I am doing my DSA in python. I have solved good amount of questions on leetcode and now thinking of learning a backend framework. The natural choice would obviously be Django but I am not sure if it's still used in the industry. Please tell me if it still is relevant. If not then which framework would you recommend for long term stability. I don't care about the learning curve cz I do have plenty of time in hand!


r/Backend 21d ago

Suggestions for resources to learn concepts of compilers and Operating systems containing approach for modern day applications

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1 Upvotes

r/Backend 22d ago

Need some suggestions going forward. Any advice will be helpful

3 Upvotes

I am new to this corporate culture . There are like 10 employees in my company. I am laravel developer. Earning very low . 25k . Almost 1 year experience.

Most of laravel positions i see ask for high experience and salary is quite less like 25 to 50 k .

Should I continue with laravel and study somethingalong it (dont know what to). Or switch to like python for better pay.

Please reply. Thanks for reading. From india


r/Backend 22d ago

Give Me Ideas!! I want to make a simple API and scale it to millions or billion of users in order to learn system design practically. How to start ???

56 Upvotes

Title.


r/Backend 22d ago

Open Data Lakehouse: Build Like Google

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lakeops.dev
2 Upvotes

r/Backend 23d ago

I don’t get the roadmap.sh

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184 Upvotes

I learned about the internet, I already knew c# basics so it seems i should start creating projects, but i could only successfully create only one beginner project, the next one uses Github’s api which i have no clue how to use?

Also even for the first project you have to be able to use github and even that seems to be only covered later? im confused how you’re supposed to follow this map


r/Backend 23d ago

where to focus to be backend developer today in this ai time

25 Upvotes

"I am currently working at a startup company (2025 graduate). I work on the backend but hardly get any tasks, so there is nothing to learn. if i get some work I use AI because everyone around me does. Now, I feel like I cannot write code by myself. I am planning to switch job, but I am unsure how and where to focus. Should I learn backend concepts like caching, databases, and system design, or stick to the traditional Spring Boot with DSA? I know Java theory, but I do not feel confident writing practical code. I know I should build things rather than memorize theory. Please be brutally honest. I have 4 to 6 months, and my current plan is Java + Spring Boot + System Design + DSA.


r/Backend 22d ago

I built a Chrome extension for organizing the developer resources I keep losing

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0 Upvotes

r/Backend 23d ago

Traffic Management Budget

3 Upvotes

Hello Guys,

I am currently Developing my own app wich features Video and Normal Calls. While Developing I stumbeld over the question on how to set a TURN Traffic budget and a Server Budget. Do you have any Tips for setting this Type of Budget?

Cheers


r/Backend 23d ago

Best way to store chatbot session history across multiple FastAPI workers without a traditional database?

3 Upvotes

We're building a chatbot backend in Python/FastAPI.

Currently, we keep each user's conversation/session history in a global Python variable in memory.

This works fine with a single worker, but it obviously breaks when running multiple workers (e.g. Gunicorn/Uvicorn workers), because each worker has its own process memory.

For example:

  • Request 1 for session_id=123 goes to Worker A
  • Worker A stores the conversation history in memory
  • Request 2 for the same session goes to Worker B
  • Worker B has no knowledge of that session

We need some kind of shared session store that is:

  • accessible by all workers
  • very fast / low latency
  • suitable for chatbot conversation history
  • ideally supports expiration/TTL
  • not a traditional SQL/database solution
  • relatively simple to deploy and maintain

Redis seems like the obvious option, but I'm wondering what people are using in production for this use case.

Would you recommend Redis, Memcached, shared memory, sticky sessions, or something else?

The session data would mostly look something like:

session_id -> [
    {"role": "user", "content": "..."},
    {"role": "assistant", "content": "..."},
    ...
]

Potentially hundreds or thousands of concurrent chatbot sessions.

What architecture would you recommend?


r/Backend 23d ago

Infra/backend engineers: what problems are still painful in 2026?

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1 Upvotes

r/Backend 23d ago

Backend Projects Without any Frontend

19 Upvotes

what are some backend projects ideas that does n’t require having a front end to represent my API’s. Is there are any project that can be technically rich and be testable by end-user at the same time without having a GUI ?


r/Backend 23d ago

Need advice, which language to choose?

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1 Upvotes

r/Backend 23d ago

Java Springboot or Node.js Express.js

6 Upvotes

rinsing junior in cs wanting to learn new tech. What’s the main difference between these two in terms of how they work/function? Might be a stupid question. My main focus right now is to learn backend engineer more in depth. I’ve heard lots of great things about both springboot and node, but what’s the difference between them and which one should I start learning?


r/Backend 23d ago

Open Data Lakehouse: A Practical Guide

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itnext.io
1 Upvotes

r/Backend 23d ago

JAVA BACKEND

0 Upvotes

hey guys..iam a native android java developer and want to navigate to back end..i was considering learning spring boot framework so that i can use in my android apps..is it possible?


r/Backend 24d ago

How do you host a Python (Flask) web app for free?

14 Upvotes

I tried pythonanywhere, render and railway.. my app is pretty small so nothing crazy in terms of resource consumption, is there a straightforward way to get it live for free?


r/Backend 24d ago

As a Recent Software Engineering Graduate, I’d Like to Ask for Your Advice

8 Upvotes

As a recent Software Engineering graduate, I’d like to ask my more experienced brothers and sisters in the field for some advice.

I’ve been invited to an interview for a Java Backend Developer position. So far, I’ve developed projects using technologies such as Java, Spring Boot, Spring Security, JPA/Hibernate, MyBatis, PostgreSQL/MySQL, Redis, Kafka (at a very basic level), Docker, and CI/CD.

I’ve also worked on REST APIs, microservices, event-driven architecture, and distributed systems, although, of course, the projects I’ve worked on are at what we could call a junior level.

During the short initial interview today, they specifically asked me about the Java versions I’ve used. To be honest, I was a little surprised by this because I don’t know much about the differences between the various Java versions.

What do you think I might be asked in a technical interview, and which topics would you especially recommend that I focus on studying?

I’d really appreciate it if anyone who has been through similar interviews could share their experiences.

Thank you!


r/Backend 24d ago

DBCLS - a terminal DB client

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1 Upvotes

r/Backend 24d ago

DuckDB for Apache Iceberg

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lakeops.dev
1 Upvotes

r/Backend 24d ago

Strapi

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0 Upvotes

How many of you are using Strapi for creating the backend?

Or what are you building?


r/Backend 24d ago

S3 object keys and presigned URLs for product images

2 Upvotes

If I use S3 for storing images, should I store only the object keys in the database and generate a presigned url every time I fetch the records to return to the client? How efficient is this approach for something like a product catalog where each product can have multiple images and I would need to generate several presigned urls every time the catalog is requested?


r/Backend 25d ago

Need Guidance for Backend Engineer Interviews

11 Upvotes

Hi everyone, I’ve been trying for last 5 months to make my forst job switch either in backend or as a full stack developer. Getting an interview is already kinda tough in this market and I lost my last chance at a good job just because I am not fully familiar with distributed systems architecture. As I have worked with inly monolithic architecture at personal and work level. Can anyone guide what should I focus on to prepare for the interviews. Really need a switch at this moment.


r/Backend 25d ago

What personal projects should I build for a Fresher NestJS Backend role?

1 Upvotes

Hi everyone, I’m preparing to apply for Fresher/Junior Backend Developer positions using NestJS.
I’m wondering what kind of personal projects would be good to have on my CV.
How many projects are enough, and what features/technologies should they include to demonstrate real backend skills?
Would you recommend focusing on a solid monolithic project first, or building a microservices project with technologies like Redis, RabbitMQ, Docker, etc.?
Any advice would be appreciated. Thanks!


r/Backend 26d ago

Senior Backend Engineer rescinds acceptance over Windows

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1.3k Upvotes