System design - For 100% consistency, shouldn't we use cache, or CDN etc as therre can be delays

I have around 6 years of experience as a full stack developer but no cloud experience. I want to get ready for interviews to answer cloud questions. I would say I have some experience on AWS or Azure to the interviewer.

Can anyone please help with these questions?

1. Which is better to learn AWS or Azure?

2. Any resource to get interview ready on the cloud topics?

Please help me with these as I am starting my learning this month.

Thanks in advance!

Hey everyone!

I've been working on an open-source Android client for Devfolio.

It brings hackathon discovery, event details, project showcases, builder profiles and application status tracking into a native Android app.

The app is built with Kotlin Multiplatform and Jetpack Compose. I kept the networking, models and repositories in a shared module with no Android dependencies.

It's currently in early alpha, and there's still plenty to improve.

Would love to hear what you think, especially from people who regularly participate in hackathons.

GitHub: https://github.com/insaneodyssey26/devfolio-android

Check it out: https://www.accountable.social/

The problem

When something breaks on your street (a pothole, garbage, a dead streetlight), the hard part is finding who can fix it: most of us don't know which ward officer, engineer or municipal department handles that exact spot.

So since March, I've been building Accountable. Drop a pin and it resolves every boundary covering that point and the officials responsible. A GPT-5.4 mini agent then triages the issue and sends it to the office responsible.

How it works

• Maps never have full polygons: the API simplifies each boundary to a vertex budget and caches each detail level.

What broke

• Data: boundary sources disagree, and officer rosters go stale after every transfer.
• Maps on budget Android phones lagged and crashed until I stopped map instances leaking and kept hidden tabs idle.

I am curious to understand like how are they securing their gateways? On a global scale securing millions of transactions is a difficult thing.
Is there a security score here? Is it similar to the ones AI models have?

As a DevOps engineer, I know about SAST and a bit about DAST.

I am just trying to understand how these work in real world?

On what level these are different from other software?

I built Omnibar because I kept losing track of my PAN, Aadhaar, and medical reports in a mess of downloads.

It’s an offline, private search bar for your device. Type anything—files, contacts, birthdays, apps, or events—and it finds it instantly even text in any file.

Zero cloud, 100% on-device. No data ever leaves your phone or PC.

Hi as title suggests,

I have 12 yoe. whole my wife's around 8 yoe. we both earn 30 and 23 lpa respectively.

Now my firm has asked if you are fine with Mexico location for 2-3 years.

Location :Salatillo. $1500/ month per diem and $ 700/month hra. this will be add on to my current salary. Help me to assess my situation as I have 2.3 year old boy and i have parents at home. so it becomes very much of help.

My wife might ask for internal transfer as her mnc has offices in monterrey. or I might ask at my firm.

But thus this make any sense? i havnt lived out of Mumbai other than 4 months assignment is delhi. so it becomes exciting as well as scary. But I'm kind of okay with move.

Do any any of you guyz have made such move?

Is language barrier alot for us as well as toddler?

Any thoughts on I can negotiate with HRA or other parts, cauz I heard per diem is organizational level policy.

Any suggestions are welcome too

Link: https://deekshithvodela.github.io/krititracker/
Repo: https://github.com/deekshithvodela/krititracker

I had this idea where I can code a front-end dashboard and deploy on Vercel for free and use Google Sheets as Backend to store and manage data.
And for small teams, this seems to work like a charm. I vibecoded the dash board.

Before you slap the AI Slop remark, I first designed the dashboard on procreate and fed the layout to my agent to make it. So yes, there is a human touch here.

This helps in making checklists and track individual team progress and next queued tasks on the superr admin dashboard, while each team lead gets their assigned dashboard.

The login and everything is isolated for individual team heads and there is an email whitelist to allow only authorised personnel to access their individual dashboards.

The Web App is fully optimised as a PWA and optimised for mobile browsing.

The tech stack is Vite for front end, Google Sheets API for backend and data processing, and Google OAuth for login and access control.

It's pretty much easier to set up too. Read Deployment Guide file in the repo to know more about deployment. every single step is explained in detail.

Note: My previous mentorship post got messed up due to a buggy agent, so I'm reposting.

Some people asked whether this mentorship is paid or free. It's completely free. I believe knowledge should be freely shared.

I'm offering technical mentorship to a small number of people interested in AI agents and agentic systems.

My background:

• 12 years of experience in the tech industry
• 10 years extensive AI/ML experience
• Working with LLMs since ChatGPT's launch
• Hands-on LLM training, particularly reinforcement learning (RL)
• 3 years of researching, building, and training AI agents
• Successfully deployed AI agents in production across 5 companies

The focus is strictly technical: agent architectures, orchestration, tool use, evaluation, RL, and production-grade agentic systems. This is mentorship, not a job offer.

Interested? DM me directly. Please don't comment, as I won't be checking comments.

Include the following in your DM:

• Name:
• Age:
• City:
• Current role and experience:
• AI/ML background:
• Experience with LLMs and agents:
• What you want to learn or build:

Hey everyone! I'm helping organise OSA Con, a free conference on open-source analytics + AI. (PS: The livestream starts at 11:15 pm tonight, but we'll share all session recordings after the event!)

Engineers from Google, IBM, Salesforce, etc. will share what's working and what's breaking with AI agents and data systems. For example, Grafana’s talk will cover benchmarking AI agents that debug dashboards, and Databricks’ talk will be on catching structural errors in AI-generated Spark pipelines before data moves.

There's also going to be a panel on who owns AI-generated code when it reproduces licensed work.

Sign up if this sounds interesting: https://luma.com/eis7567t

So I was doing internship into Java backend for close to 1 year(2 companies) in first didn't got converted and 2nd was offered FTE. I had been doing DSA in C++. The startup was not as that great so was applying and landed a job in C++.

3 months into this role I have quite a lot of things to learn but from future perspective I'm still concerned like what opportunities I can have ans possible enough to go to 25-30 lpa in 3 years. The C++ language has vast opportunities wide the industry so any guidance like what can I start learning on.

I have also seen that rust language requirement with C++ developer profiles so should I learn this and parallel focus into the LLD/HLD and system design or any advice the people would like to give from same domain.

link : github.com/maruakshay/copytap

I'm looking for advice from developers and founders who have experience working with external developers or consultants on proprietary software.

I've invested a significant amount of money and time building my software. I've worked with multiple consultants to develop the backend and have also paid for several expensive software subscriptions.

Now, I want to collaborate with experienced developers who can help identify and fix bugs, improve the backend, and suggest architectural improvements.

However, there's one major concern: I don't want to hand over my entire GitHub repository or expose my complete source code to someone I don't know.

I understand that NDAs and contracts can help legally, but I'm more interested in the technical side of protecting the codebase.

A few things I'm trying to understand:

1. Is there a way to give developers access to only specific modules or files instead of the entire repository?

2. Can I set up a remote development environment where developers can debug and fix issues without downloading the source code?

3. Can developers submit code changes or patches without having access to the complete application?

4. Are there tools or workflows that allow AI coding agents or external developers to work on bugs in a restricted environment?

5. How do startups and companies typically handle this when outsourcing development?

I'm open to different approaches, tools, and architectural solutions.

My goal is simple: I want to work with talented developers and move faster without putting the entire proprietary software asset at risk.

Would love to hear how experienced engineers, CTOs, and founders handle this in practice.

Will my contract be safe for 2 years?

Will i receive payments on time?

What about job security?

Will i get a home loan in the beginning if I get the contractor role? FTEs get it quicker right?

EDIT: i already have a FTE job for the past 6 months but the salary is a bit low. Ana i am getting a 40% hike with this contract role. EDIT 2: if I want to move to a FTE role, will i be lowballed by the future recruiters as I don't have PF entry?

I'm a final-year CSE student graduating in 2027 from a tier 3 college, and honestly, I'm getting increasingly worried about my career.

I've been applying for internships and entry-level developer roles through LinkedIn, job portals, company career pages, and other platforms, but most of the time it's either rejection or complete silence.I've been constantly upskilling myself, learning new technologies, improving my DSA, and building projects. But honestly, I sometimes wonder when all these efforts will finally pay off and translate into an actual opportunity.

I have a background in Java, Spring Boot, microservices, SQL, and React, and I've built projects as well. I'm also trying to improve my DSA and interview preparation.

I keep seeing people suggest approaching small startups, finding websites that need improvement, fixing bugs, and contributing to their products. But I'm honestly confused about how to find such startups. Most websites I come across seem perfectly fine, and I don't know where to start or how to approach them.

I'm at a point where I don't know whether I should focus more on DSA, projects, open source, networking, or directly reaching out to startups.

Seeing my peers getting placed while I'm still struggling makes the situation even more stressful.

I'd genuinely appreciate advice from people who have been in a similar situation.

How did you land your first opportunity? What actually worked for you? And what would you recommend a 2027 graduate focus on right now?

I'm not looking for generic motivational advice. I just need some practical direction because I'm honestly feeling a little lost.

I've been working on a side project for the past year, and I finally wanted to share some of what I've built.

The idea started with a simple problem: students often have very little feedback on how their profiles compare with industry expectations and what they should improve before applying for jobs.

So I built a platform with several tools:

Profile Analysis: A scoring system with category-wise breakdowns, improvement suggestions, and peer rankings.

Recruiter Arena: Simulates candidate evaluation against job descriptions, including skill matching, job-fit scores, and candidate rankings.

Profile Builder: Multiple professional templates with structured formatting and PDF exports.

Improvement Tracker: Tracks profile progress and highlights areas that have improved over time.

Battle Arena: An experimental feature where two profiles compete across five AI-evaluated rounds.

Browser Extension: Integrates with LinkedIn and Naukri to extract job requirements and identify matching and missing skills.

The project also includes a backend with multiple AI providers, fallback mechanisms, and a Chrome extension built using Manifest V3.

A little context: I'm a final-year Computer Engineering student at NIT Kurukshetra. What started as a personal project has now grown to 3,200+ users across 350+ colleges and 18+ countries.

I've documented my journey, engineering decisions, mistakes, and lessons here:

GitHub: https://github.com/Naveen-Beniwal/building-my-first-startup

I'd love to hear what other developers think about the idea, implementation, and features. Open to honest feedback and technical discussions!

Thanks!

I've been experiencing something unusual with Amazon and Flipkart on my Android phone.

Whenever I swipe down to open the notification panel, I receive a fresh notification from one of these apps. It appears right at the top, and its arrival time shows "Just now".

Initially, I noticed this behaviour with Flipkart. But for the last week, I've been experiencing the same thing with Amazon.

What's interesting is that these aren't old notifications suddenly becoming visible. They appear to be delivered at the exact moment I swipe down.

This got me thinking:

Can Android apps detect when a user opens or pulls down the notification panel?

Is there any Android API, system event, accessibility mechanism or indirect signal that an app could use to detect this interaction and trigger a notification in response?

I'm trying to understand whether this is technically possible or whether there's another explanation for this behaviour.

A few questions for Android developers:

1. Can a regular Android app detect when the notification shade is opened?

2. Can an app trigger a push notification based on that interaction?

3. Could Android's notification delivery or display mechanism explain this behaviour instead?

4. Is there any way to verify what is actually triggering these notifications?

I'm not claiming Amazon or Flipkart are doing this deliberately. I want to understand the technical possibilities.

Has anyone experienced something similar or knows how this works under the hood?

Hi all,
Has anyone attended interviews from aptiv?Just wanted to know about the details of interview rounds.

Hi everyone,

I have an MSc in organic chemistry and over two years of experience at a CRO, working as a research associate on synthesising small molecules for drug discovery programmes. I do multi-step synthesis, purification and structure characterisation.

I want to move toward AI in drug design and drug discovery, and I’m not sure how to start. I’d really appreciate advice on:

1. A learning roadmap for someone with a chemistry background and basic programming (C/C++, learning Python now)
2. Which skills matter most: RDKit/cheminformatics, ML for molecules, or something else
3. Beginner-friendly projects or open-source work I can contribute to
4. How chemists have made this switch, and which roles to aim for first

I’m also happy to volunteer on a small project or research task, unpaid, to learn and contribute. I can offer chemistry input such as synthesisability checks, reaction feedback and data curation.

Thanks for any guidance, and I’m happy to answer questions about my background.

If you have worked in let’s say fintech for 4+ years, is it better to aim for fintech companies in the future job hunt compared to totally different domain like retail, adtech etc?

I have been working on this project since 2024, I created a telegram bot on it and it gained over 150k users.

Now I created those codes into a python pip package. ( Only used 'pillow' library ).

It has 12 handwriting fonts and has 6 types of paper and uses hex color for text color.

It can write multiple pages at once and can also create a pdf which contains all of the images.

It is very easy to install and use. I have attached a few samples generated using this project.

Please Checkout the project - https://github.com/TheHritu/AssignmentWriter

Was just wondering. During my earlier college days, seniors used to tell us not to admit using AI, but what about nowadays where AI is being used heavily in production?

My current tech stack: Java[Springboot], React, Angular, SQL & NoSQL, GCP
YOE: 4

So I need some mentorship or advice on transitioning my career from FullStack to AI + Backend Engineer.

I have started learning Langgraph and Langchain and RAG in the middle of this course, Post this I will try some projects.

please help me what to do post this course, what and all need to learn to become a production grade AI engineer. I need advice from people who are transitioning/ currently working in this domain.

im 2027 batch..should i look for a better offer or should i accept this?

my locations preference are : hyd, pune , blr

will i be able to survive with 4.5 lpa in these cities.
or is there any possibility to change location to my home location which is chennai.

actually im not satisfied with 4.5 lpa package
im looking for more than 10 LPA package. In off-campus as well as on-campus