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📰 Dev.to · Eric Rodríguez

63 articles · Updated every 3 hours · View all reads

All Articles 132,393Blog Posts 137,072Tech Tutorials 34,304Research Papers 25,931News 18,744 ⚡ AI Lessons
Day 91: Why I stopped using GenAI for budgeting math
Dev.to · Eric Rodríguez 1mo ago
Day 91: Why I stopped using GenAI for budgeting math
When building AI-powered apps, you have to know when to turn the AI off. Today, I was testing my...
Day 90: Building a Resilient App Shell & Theme Engine in React
Dev.to · Eric Rodríguez 🖌️ UI/UX Design ⚡ AI Lesson 2mo ago
Day 90: Building a Resilient App Shell & Theme Engine in React
A robust serverless backend is useless if your frontend feels like an unfinished prototype. Today, I...
Day 89: Building a Savings Dashboard & Reusing AI Responses (FinOps)
Dev.to · Eric Rodríguez 💰 FinTech & AI for Finance Professionals ⚡ AI Lesson 2mo ago
Day 89: Building a Savings Dashboard & Reusing AI Responses (FinOps)
Adding features to an AI-powered SaaS is easy. Doing it without increasing your LLM token consumption...
Day 88: Architecting a Serverless Monetization Engine (DynamoDB & Affiliate APIs)
Dev.to · Eric Rodríguez ⚡ AI Lesson 2mo ago
Day 88: Architecting a Serverless Monetization Engine (DynamoDB & Affiliate APIs)
Building a cloud application is fun until you get the AWS bill. To make my Serverless Financial Agent...
Day 87: Voice-Interactive AI with Amazon Polly & DynamoDB Caching
Dev.to · Eric Rodríguez 💻 AI-Assisted Coding ⚡ AI Lesson 2mo ago
Day 87: Voice-Interactive AI with Amazon Polly & DynamoDB Caching
Imagine asking your app directly, "What was my biggest expense this month?" and having it instantly...
Day 86: Adding Multi-Language Support with AI Translation Caching
Dev.to · Eric Rodríguez 🤖 AI Agents & Automation ⚡ AI Lesson 2mo ago
Day 86: Adding Multi-Language Support with AI Translation Caching
Translating a static React app is easy. Translating a dynamic AI agent without draining your cloud...
Day 85: Building a Secure App Lock in React with PBKDF2
Dev.to · Eric Rodríguez ⚡ AI Lesson 2mo ago
Day 85: Building a Secure App Lock in React with PBKDF2
Authentication gets you into the application, but what happens when a user leaves their laptop open?...
Day 84: Merging Cognito Identities & Surviving a 502 Gateway Error
Dev.to · Eric Rodríguez 2mo ago
Day 84: Merging Cognito Identities & Surviving a 502 Gateway Error
Today I almost broke my serverless production environment, but AWS disaster recovery features saved...
Day 80: Building an Event-Driven Bank Sync Pipeline (Webhooks, SQS & DynamoDB Locks)
Dev.to · Eric Rodríguez 2mo ago
Day 80: Building an Event-Driven Bank Sync Pipeline (Webhooks, SQS & DynamoDB Locks)
When building fintech applications, letting the client dictate when to fetch third-party banking data...
Day 83: AWS SNS SMS Alerts & Segment Cost Optimization
Dev.to · Eric Rodríguez 2mo ago
Day 83: AWS SNS SMS Alerts & Segment Cost Optimization
Adding SMS alerts to your serverless application is incredibly easy with AWS SNS. Keeping those...
Day 80: Stop letting your AI hallucinate on dirty data (Fintech Edge-cases)
Dev.to · Eric Rodríguez 2mo ago
Day 80: Stop letting your AI hallucinate on dirty data (Fintech Edge-cases)
When you build AI-powered applications, the most important code you write has nothing to do with AI....
Day 79: Solving Silent Fails in IAM and Cognito
Dev.to · Eric Rodríguez 2mo ago
Day 79: Solving Silent Fails in IAM and Cognito
Today was about Infrastructure Forensics. My "Delete Account" button was lying to me. The Bug: The...
Day 78: Fixing "Ghost Data" and Escaping the Spam Folder
Dev.to · Eric Rodríguez ⚡ AI Lesson 2mo ago
Day 78: Fixing "Ghost Data" and Escaping the Spam Folder
When building serverless apps, your frontend is often faster than your database's replication speed....
Day 78: Hunting Silent IAM Bugs & Securing DynamoDB
Dev.to · Eric Rodríguez 🔐 Cybersecurity ⚡ AI Lesson 2mo ago
Day 78: Hunting Silent IAM Bugs & Securing DynamoDB
aws #serverless #react #webdev published: true date: "2026-05-08 21:30:00 UTC" Today was...
Day 77: Fixing React Hydration & AWS SES Identities
Dev.to · Eric Rodríguez 2mo ago
Day 77: Fixing React Hydration & AWS SES Identities
Sometimes you architect a robust Serverless backend only to realize your frontend feels clunky and...
Day 76: Supercharging my React App with AWS CloudFront CDN
Dev.to · Eric Rodríguez ⚡ AI Lesson 2mo ago
Day 76: Supercharging my React App with AWS CloudFront CDN
Today I tackled one of the most common UI annoyances: slow-loading profile pictures. My serverless...
Day 75: Building a "Nuclear" Delete Button and S3 Avatar Uploads
Dev.to · Eric Rodríguez ⚡ AI Lesson 2mo ago
Day 75: Building a "Nuclear" Delete Button and S3 Avatar Uploads
Today I tackled user profile management in my serverless financial app. I added AWS S3 for profile...
Day 74: Use Glassmorphism and Narrative to Tame Your AI App First-Log-In Latency
Dev.to · Eric Rodríguez 🖌️ UI/UX Design ⚡ AI Lesson 2mo ago
Day 74: Use Glassmorphism and Narrative to Tame Your AI App First-Log-In Latency
When building AI-powered apps, GenAI is not the only source of latency. External banking APIs,...
How to stop your AI from hallucinating financial data 🛑🤖
Dev.to · Eric Rodríguez 🛡️ AI Safety & Ethics ⚡ AI Lesson 2mo ago
How to stop your AI from hallucinating financial data 🛑🤖
Day 69 of my #100DaysOfCloud challenge! Today was all about QA testing my AI Prompts. If you let a...
I found a 1650% cost spike in my AWS Account
Dev.to · Eric Rodríguez ⚡ AI Lesson 2mo ago
I found a 1650% cost spike in my AWS Account
Day 68 of my #100DaysOfCloud challenge! I was short on time today, so I went to the console to do a...