Usman Soliu

@devFresher

Product-Focused Backend Engineer | Helping Startups Scale & Succeed

Ibadan, NigeriaJoined August 2020

About

Usman Soliu, a seasoned software engineer with a career spanning over six years, has devoted more than three years to constructing robust backend applications. Beyond the corporate sphere, he actively contributes to open-source projects, showcasing a commitment to collaborative innovation.

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Usman Soliu's blogs

CodeAlongcode-along.hashnode.dev12 posts

Articles Comments3

Recently published

USUsman Soliucode-along.hashnode.devJun 13 · 29 min read

From Monolith to Microservices

Most systems don't start as microservices. In fact, many of the products we use every day began as a single application connected to a single database. That is usually the right decision. Yet, if you

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USUsman Soliucode-along.hashnode.devJan 27 · 4 min read

You Can Build Fast With AI. But Would You Survive Production?

Let me say this plainly. Being able to build a project fast with AI does not make you a senior engineer. It just means you can move fast. And speed, on its own, has never been the definition of experience. Today, you can scaffold an app in a weekend....

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USUsman Soliucode-along.hashnode.devSep 27, 2025 · 4 min read

Solutions to Dirty Read Concurrency Problem

This article is part of my concurrency series where I break down common problems like race conditions, dirty reads, phantom reads, and deadlocks in simple, glocal terms. Again, system design is not something to joke with as a backend engineer.One of ...

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USUsman Soliucode-along.hashnode.devSep 25, 2025 · 8 min read

Building a Notification System in NestJS - Part 2

In Part 1 of this series, we built the foundation of an event-driven notification system in NestJS. Events are emitted, jobs are queued with BullMQ, and workers process them in the background. That gave us a clean and fast system, where sending a not...

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USUsman Soliucode-along.hashnode.devSep 25, 2025 · 5 min read

Building a Notification System in NestJS – Part 1

Notifications are everywhere. Whether it’s an email about a new transaction, a push alert from your favorite app, or an in-app bell icon lighting up, notifications are a big part of how apps keep users engaged. In this series, I’ll Walk you through h...

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Usman Soliu

About

Available for

Usman Soliu's blogs

Recently published

From Monolith to Microservices

You Can Build Fast With AI. But Would You Survive Production?

Solutions to Dirty Read Concurrency Problem

Building a Notification System in NestJS - Part 2

Building a Notification System in NestJS – Part 1

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Usman Soliu

About

Available for

Usman Soliu's blogs

Recently published

From Monolith to Microservices

You Can Build Fast With AI. But Would You Survive Production?

Solutions to Dirty Read Concurrency Problem

Building a Notification System in NestJS - Part 2

Building a Notification System in NestJS – Part 1