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About Logeshwaran
I am an experienced AWS Full Stack Developer with expertise in building scalable, cloud-native applications using a wide range of technologies, including AWS, Angular, Java, Node.js, Python, Terraform, Docker, and TypeScript. With a strong focus on delivering high-performance solutions, I specialize in leveraging AWS services for cloud architecture, creating dynamic front-end interfaces, and building efficient back-end systems. I have hands-on experience in automating infrastructure with Terraform, containerizing applications using Docker, and implementing DevOps best practices.
Designing a URL Shortener That Handles 100 Million Requests Per Day
Posted inSystem Design

Url Shortener System Design: Designing a URL Shortener That Handles 100 Million Requests Per Day

A senior-engineer guide to URL shortener system design, with production-ready patterns, trade-offs, and practical examples.
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TypeScript Generics Deep Dive: Advanced Patterns That Eliminate Entire Bug Classes
Posted inJavaScript

TypeScript Generics Deep Dive: Advanced Patterns That Eliminate Entire Bug Classes

A senior-engineer guide to TypeScript generics, with production-ready patterns, trade-offs, and practical examples.
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AWS CloudWatch Insights Queries That Actually Find Production Bugs
Posted inAWS

Cloudwatch Logs Insights Queries: AWS CloudWatch Insights Queries That Actually Find Production Bugs

A senior-engineer guide to CloudWatch Logs Insights queries, with production-ready patterns, trade-offs, and practical examples.
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Python asyncio vs Threading: The Benchmark That Changes How You Think About Concurrency
Posted inPython

Python asyncio vs Threading: The Benchmark That Changes How You Think About Concurrency

A senior-engineer guide to Python asyncio vs threading, with production-ready patterns, trade-offs, and practical examples.
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JavaScript Generator Functions: Lazy Evaluation and Infinite Sequences Done Right
Posted inJavaScript

JavaScript Generator Functions: Lazy Evaluation and Infinite Sequences Done Right

A senior-engineer guide to JavaScript generator functions, with production-ready patterns, trade-offs, and practical examples.
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AWS S3 Presigned URLs: The Security Mistakes 90% of Developers Make
Posted inAWS

S3 Presigned Urls Security: The Security Mistakes 90% of Developers Make

A senior-engineer guide to S3 presigned URLs security, with production-ready patterns, trade-offs, and practical examples.
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Python Dataclasses: 10 Advanced Features That Make __init__ Obsolete
Posted inPython

Python Dataclasses: 10 Advanced Features That Make __init__ Obsolete

A senior-engineer guide to Python dataclasses, with production-ready patterns, trade-offs, and practical examples.
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PostgreSQL Query Planner Secrets: Make Your JOINs 10x Faster Without Indexes
Posted inDebugging

PostgreSQL Query Planner Secrets: Make Your JOINs 10x Faster Without Indexes

A senior-engineer guide to PostgreSQL query planner, with production-ready patterns, trade-offs, and practical examples.
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Design a Production Rate Limiter: Algorithms Seniors Actually Use in Interviews and at Work
Posted inSystem Design

Design a Production Rate Limiter: Algorithms Seniors Actually Use in Interviews and at Work

A senior-engineer guide to production rate limiter, with production-ready patterns, trade-offs, and practical examples.
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JavaScript WeakMap and WeakRef: The Memory Management Primitives Nobody Teaches
Posted inJavaScript

Javascript Weakmap Weakref: The Memory Management Primitives Nobody Teaches

A senior-engineer guide to JavaScript WeakMap WeakRef, with production-ready patterns, trade-offs, and practical examples.
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