How I built a flash-sale engine that can't oversell
I created this piece of content for the purpose of entering the H0: Hack the Zero Stack hackathon. #H0Hackathon The problem (that's harder than it sou…
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I shipped my first AWS + Vercel product in 7 days during a Meta attribution crisis 👋
Hi dev.to 👋 I'm Andres. Long-time builder, first-time dev.to poster. (Pretty sure I should have done this years ago.) Just shipped Ad Engine — a 24/7 …
DynamoDB and SQS containers with Docker Compose
Docker Compose facilitates spinning up local AWS-compatible services without an AWS account. This post covers DynamoDB Local for key-value storage and…
Deploying Spring PetClinic Microservices on AWS EKS: A Team Story
When our group of 11 was handed the brief for our DMI DevOps Micro-Internship capstone project, the goal was clear: take a real-world microservices ap…
2- AWS Serverless: Testing (typescript)
Shifting from traditional application testing to serverless TypeScript engineering is all about shifting your perspective: you stop testing a running …
How to Control CloudWatch Logs Costs on ECS
Your AWS bill shows CloudWatch at $400 this month. You have 15 ECS services logging INFO-level with retention set to Never Expire. You didn't configur…
What is Virtualization? The Technology Behind the Cloud
By Sailee Shingare | M.S. in Computer Science, Northern Illinois University (NIU) In my last post, I said the cloud is essentially “someone else’s com…
Datadog and AWS Shipped Ops Agents on the Same Day. What Are They Fighting Over?
On June 9, 2026 (US time), two big announcements landed on the same day. At the keynote of Datadog's annual event DASH 2026 in New York, the Bits AI f…
Why I replaced DynamoDB with Aurora PostgreSQL Serverless v2 for an ad-ops monitoring workload
On February 14, 2026, Meta started enforcing health-data restrictions that broke pixel-based lower-funnel conversion tracking for DTC telehealth adver…
Optimizing images stored on S3 with ShortPixel: a Laravel walkthrough
If your Laravel app lets users upload images and sends them straight to S3, there is a good chance you are storing files much larger than they need to…
Introducing AWS FinOps Agent - An AI That Investigates Your Cloud Costs
👋 Hey there, Tech Enthusiasts! I'm Sarvar, a Cloud Architect who loves turning complex tech problems into simple solutions. I've worked with AWS, Azur…
How to make AI answer questions about your documents, by building RAG from scratch
In the previous post , we talked about context windows. The model has a fixed-size desk and everything has to fit on it at once. When too much is on t…
1- AWS Serverless: Designing a serverless API: Order Processing API (E-commerce)
Modern enterprise order processing architectures must decouple synchronous client demands from asynchronous backend dependencies. Here I'll detail a h…
Trying Out AWS FinOps Agent with Slack Integration
Original Articles： https://zenn.dev/mob_engineer/articles/skack-finops-agent Thank you for reading this article. I'm Mob Engineer (@mob_engineer). AWS…
🚀 AWS VPC Project: Build a Production-Ready Architecture with EC2, ALB, ASG & Bastion Host
In the previous articles, we learned about: VPC subnets Internet Gateway Route Tables Security Groups Network ACLs DNS and Route 53 Until now, we have…
Stop Using IAM Access Keys: Secure Cross-Cloud Workloads with OIDC Federation
As developers and DevOps engineers, we’ve all been there. You have an external service—maybe an Azure Dynamics 365 (D365) business application or a Gi…
I Read the Cloud Filings So You Don't Have To: a 12-Part Series
I've spent 35 years in IT operations. I worked Y2K remediation at Allstate, spent 2006-2014 inside Microsoft's cloud delivery organization, contribute…
We Built NeuralDrive — an AI-Powered Emergency Routing System on AWS in One Day — Top 10 at One With AI Hackathon
Hey Dev community! 👋 Our 4-person team just made it to the Top 10 of the One With AI Hackathon by Arthurite Integrated x AWS. Here's our quick stack: …
Going Serverless - AWS Lambda Functions
👋 Hey there, tech enthusiasts! I'm Sarvar, a Cloud Architect with a passion for transforming complex technological challenges into elegant solutions. …
How I Built a Restaurant Waitlist App on Amazon Aurora DSQL That Literally Cannot Double-Book a Table
I just shipped TableTurn — an affordable restaurant waitlist and table management system built on Amazon Aurora DSQL and Vercel. This post covers the …
From Assistant to Builder: What I Learned Shipping an AI-Assisted Project
Building a URL shortener with Cursor, ChatGPT, AWS Lambda, API Gateway, and Cloudflare taught me more about shipping software than writing code. Since…
How I Built a Scalable Network Diagnostic Suite on AWS Edge Functions for $1.71/Month
Every developer knows the frustration of using legacy network utility sites. You just want to check an ASN routing path, look up a public IP, or verif…
Implementing Token Bucket Rate Limiting for High-Volume Inventory APIs
When you expose inventory or checkout endpoints to public-facing front-ends or third-party webhooks, safeguarding those APIs from brute-force scripts,…
Give Your AI Assistant Infrastructure Eyes Before It Writes Another Query
You asked Claude Code to add pagination to your order history endpoint. It generated a clean function — listOrdersByUser() — using a DynamoDB Scan wit…
Deploying Spring Boot to AWS EC2 with Docker and GitHub Actions — The Repeatable Way
Deploying a Spring Boot application to AWS EC2 is straightforward once you've done it. Getting there the first time — and repeating the setup on your …
I'm 62 and I built a self-hosted AWS drift detector because I was tired of spreadsheets
I came to programming late — I didn't get into this world until I was past 35, and I'm 62 now, still writing code every day. This is a "build in publi…
Understanding DNS and AWS Route 53 for Beginners
In the previous articles, we learned about: VPC Subnets Internet Gateway Route Tables Security Groups Network ACLs (NACLs) These components help us bu…
How I Built an AI Invoice Generator with Groq, AWS DynamoDB, and Vercel v0
I built InvoiceAI an AI powered invoice generator that lets you describe what you want to invoice in plain English and get a fully formatted invoice i…
AI Enrichment Pipeline: From Sample Classification to 100K-File Metadata Search with Bedrock and OpenSearch NextGen
Quick Recap: What We Built in Part 1 In Part 1 , we built a metadata catalog on Apache Iceberg (S3 Tables) that makes unstructured files on FSx for ON…
From Hours to Seconds: An AI-Powered Metadata Catalog for Unstructured Data on FSx for ONTAP
What Works Now vs What Requires Validation This article separates verified AWS-native capabilities from cross-platform paths that still require valida…