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Urfan Hamzayev

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Level Up Coding

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Urfan Hamzayev

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Aug 3

Designing a Scalable Webhook Delivery System for 10 Million Events per Day

How to build a reliable, fault-tolerant, and scalable webhook infrastructure from scratch.

Designing a Scalable Webhook Delivery System for 10 Million Events per Day

Urfan Hamzayev

·

Aug 2

We Chose Microservices Before We Needed Them: A Lesson Every Developer Should Learn

How trying to build a “future-proof” system created more problems

We Chose Microservices Before We Needed Them: A Lesson Every Developer Should Learn

Urfan Hamzayev

·

Jul 28

5 Spring Boot Mistakes That Crash Production (And How to Avoid Them)

Spring Boot makes building production-ready applications incredibly easy. With auto-configuration, embedded servers, and powerful…

5 Spring Boot Mistakes That Crash Production (And How to Avoid Them)

Urfan Hamzayev

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Jul 28

15 Java Performance Hacks Every Developer Should Master

Java powers some of the world’s largest systems — banking platforms, telecom services, large-scale SaaS products, and high-traffic…

15 Java Performance Hacks Every Developer Should Master

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Level Up Coding

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Urfan Hamzayev

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Mar 16

7 Mistakes Developers Make When Building AI Coding Agents (And How to Avoid Them)

AI coding agents are quickly changing how developers write and maintain software. Tools like GitHub Copilot, AutoGPT, and frameworks such…

7 Mistakes Developers Make When Building AI Coding Agents (And How to Avoid Them)

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Level Up Coding

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Urfan Hamzayev

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Jul 31, 2025

What Happens When Java Faces 1 Million Concurrent Users? Pain.

Introduction:

What Happens When Java Faces 1 Million Concurrent Users? Pain.

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Level Up Coding

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Urfan Hamzayev

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Jun 9, 2025

Optimizing Spring Boot to Serve a Million Requests per Second

Spring Boot is known for its simplicity and speed of development. However, when it comes to handling massive scale — think 1 million…

Optimizing Spring Boot to Serve a Million Requests per Second

In

Level Up Coding

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Urfan Hamzayev

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Mar 24, 2025

10 Java Performance Hacks Every Developer Should Master

Introduction

10 Java Performance Hacks Every Developer Should Master

In

Level Up Coding

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Urfan Hamzayev

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Mar 19, 2025

Mastering API Versioning in Spring Boot: Stop Breaking Your Endpoints

Introduction

Mastering API Versioning in Spring Boot: Stop Breaking Your Endpoints

In

Level Up Coding

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Urfan Hamzayev

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Feb 21, 2025

Building a Scalable Multi-Tenant SaaS with Spring Boot and Dynamic DataSource Routing

Introduction

Building a Scalable Multi-Tenant SaaS with Spring Boot and Dynamic DataSource Routing

Urfan Hamzayev

Urfan Hamzayev

AI & Technology Leader | AI Architect | AI Assurance & Agentic AI | Fractional CTO | Building Safrio LinkedIn: https://www.linkedin.com/in/urfan-hamzayev/

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