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Jemil Oyebisi

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Jemil Oyebisi

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Aug 13, 2024

How Do Processes (Running Programs) Communicate?

In my previous article, I discussed processes as running instances of applications. Sometimes, processes need to communicate by sharing…

How Do Processes (Running Programs) Communicate?

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Jemil Oyebisi

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Jan 13, 2024

Why Understanding Operating Systems Is Important For Every Back-end / Distributed Systems Engineers

As a backend or distributed systems engineer, your ability to design, develop, and troubleshoot efficient, and secure systems lies not only…

Why Understanding Operating Systems Is Important For Every Back-end / Distributed Systems Engineers

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Jemil Oyebisi

·

Nov 18, 2023

Which Database Is Right For Your Workload? Let’s explore Relational vs. Non-Relational Options

When we create software that uses a lot of data, how we store and access this data is really important. The kind of database we choose can…

Which Database Is Right For Your Workload? Let’s explore Relational vs. Non-Relational Options

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Jemil Oyebisi

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Apr 27, 2023

Understanding the Domain Name System: A Distributed Phone Book of the Internet

DNS functions like a phone book, a distributed system that translates human-readable domain names, such as www.example.com, into…

Understanding the Domain Name System: A Distributed Phone Book of the Internet

Jemil Oyebisi

·

Apr 16

The Silent Resource Leak in Most ASP.NET Core APIs

A practical guide to HttpContext.RequestAborted and CancellationToken

The Silent Resource Leak in Most ASP.NET Core APIs

Jemil Oyebisi

·

Dec 30, 2025

Why I Couldn’t Find the Amazon SES Domain Verification Record (And Why Nothing Was Wrong)

I was setting up Amazon SES domain verification and ran into a familiar problem: the _amazonses TXT record I expected simply wasn’t there…

Why I Couldn’t Find the Amazon SES Domain Verification Record (And Why Nothing Was Wrong)

Jemil Oyebisi

·

May 13, 2025

Remember When We Sat in Math Class Thinking, ‘Is This Ever Going to Be Useful in Real Life?’

A simple breakdown of vectors, matrices, and dot products, and how they power everyday tools like Netflix, TikTok, and Spotify.

Remember When We Sat in Math Class Thinking, ‘Is This Ever Going to Be Useful in Real Life?’

Jemil Oyebisi

·

Apr 6, 2025

Reduce Redis Memory Costs with MessagePack: Boost Performance & Cut Storage Bills

MessagePack is a fast, compact way to serialize data, it is similar to JSON, but it is way smaller and quicker. The main difference is that…

Jemil Oyebisi

·

Mar 28, 2025

Beyond Writing Code and Learning Tools: How Emotional Intelligence Helps You Move up to Senior…

My mentees often ask me what it takes to become a senior engineer. Those conversations got me thinking, and here’s what I’ve realized: your…

Jemil Oyebisi

·

Mar 16, 2025

How I Overcame NTLM Authentication Challenges on Linux with CNTLM

Recently, I encountered a real head-scratcher when a .NET API was moved from a Windows on-prem environment to a Linux-based container…

How I Overcame NTLM Authentication Challenges on Linux with CNTLM

Jemil Oyebisi

Jemil Oyebisi

Backend Engineer, I share practical tips and insights on backend development / distributed system design and development.

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