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Lambda Managed Instances: When Serverless Meets Steady-State Traffic
Same code, EC2 pricing, no cold starts. Here's the catch.
Jul 8
•
Lefteris Karageorgiou
1
My Insights After 10 Years of Serverless
Common mistakes, emerging tools, and architecture patterns from a decade in the trenches
Jul 1
•
Lefteris Karageorgiou
1
June 2026
API Gateway: Why Your Serverless API Costs More Than an ALB at Scale
REST vs. HTTP APIs vs. ALB. A real-world cost breakdown.
Jun 24
•
Lefteris Karageorgiou
1
2
Serverless with Claude Code: Build POCs Fast Without Losing Control
What I learned about keeping AI coding agents on track during customer engagements.
Jun 17
•
Lefteris Karageorgiou
1
The 4-Step Roadmap to Break Into Cloud (That Actually Works)
Stop Collecting Certifications. Start Building a Career.
Jun 10
•
Lefteris Karageorgiou
4
6
S3 Cost Traps: What Nobody Tells You About Lifecycle Policies
You’re running a production workload on AWS. You set up S3, maybe enabled versioning because “best practice,” and moved on. Six months later, your S3…
Jun 3
•
Lefteris Karageorgiou
3
1
May 2026
5 Fundamental Architectures You Should Know for Cloud Interviews
If you want to break into a cloud role (Cloud Engineer, Cloud Developer, Software Engineer, DevOps, SRE, Solutions Architect, etc.) and you have an…
May 27
•
Lefteris Karageorgiou
14
4
Building Multi-Agent Workflows on Lambda Durable Functions
Multi-agent systems are everywhere now. Every team wants autonomous agents collaborating on complex tasks, research, planning, execution, validation.
May 20
•
Lefteris Karageorgiou
1
2
How to Get the Most Out of Tech Events
I’ve attended a couple of tech events over the past two weeks, and they reminded me just how much value is sitting right there, if you know how to look…
May 13
•
Lefteris Karageorgiou
3
3
Spec-Driven Development on AWS
We’ve all been there. A service gets deployed, an API route goes live, and three weeks later someone asks, “Wait, what does this endpoint actually do?”
May 6
•
Lefteris Karageorgiou
1
April 2026
5 Hands-On AWS Projects That Will Prepare You for the SAA-C03
Most people study for the AWS Solutions Architect Associate by watching 40 hours of video and memorizing answers.
Apr 29
•
Lefteris Karageorgiou
14
2
10
Building Production-Grade API Security
We built a customer-facing API processing thousands of transactions per minute.
Apr 22
•
Lefteris Karageorgiou
1
4
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