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Udeme Emmanuel | Software Engineer

@the_quietdev

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followers

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Learning how money moves online by building it: payments, webhooks, financial systems.

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Software is never really "finished."

Sometimes the code is fine.
The architecture is solid.
The features work exactly as intended.

But then the business changes.

New goals.
New users.
New priorities.

And suddenly, the product has to evolve with it.

A few months ago, I built a production EdTech platform with student dashboards, admin tools, authentication, payments, assessments, and more.

Now, I'm rebuilding it—not because it failed, but because the business behind it has become something completely different.

This series is a behind-the-scenes look at what that process actually looks like.

I'll be sharing:
• Product decisions
• UI redesigns
• Backend changes
• Trade-offs
• Mistakes
• Lessons from rebuilding real software

No tutorials.
No fake projects.
Just real engineering decisions from a real product.

If you're a developer, founder, designer, or simply curious about how production software evolves, I think you'll enjoy what's coming.

🎯 Episode 1 drops soon.

What do you think changes first when a product gets rebuilt?

👇 Let me know in the comments. by @the_quietdev

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3 months ago

Most devs can integrate a payment gateway.
Few can explain what happens after the customer clicks Pay.

I want to be in the second group. 💳

So I’m doing an in-depth study of “How Online Card Payments Work in Nigeria” by Paystack.

Encryption, authorisation, settlement, tokenisation… it’s finally making sense.

Want to read it too? It’s free to download on Paystack’s site.

🔗 Link: https://paystack.com/guides/how-online-payment-works

Learning in public. Becoming an expert one concept at a time.

#paystack #fintech by @the_quietdev

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4 days ago

Client said the AI chat was broken. It worked on my laptop. The bug wasn't in the code. My API key never made it to the live server.

Check your environment variables before you touch your code.

🔖 Save this for your next deploy.

#nextjs #vercel #buildinpublic #webdevelopment by @the_quietdev

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9 days ago

Shipped the site. Assumed Google would just find everything. It didn't.

7 pages weren't indexed, for 3 different reasons, and one was my own mistake (a deleted page still in my sitemap).

Here's how I read Search Console and what I fixed.

Save this for your next launch. & Follow.

#softwareengineer #nextjs #seotips #buildinpublic taken in Lagos-island Eko, Lagos, Nigeria by @the_quietdev

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9 days ago

This is what happens when the only confirmation a system trusts is the one a customer's phone saw, instead of the one sent quietly between backends.

The quiet handshake between those two backends is what actually makes a payment official.

🔖 Bookmark this.

#softwareengineer #fintech #payments #buildinpublic #webhooks taken in Eko Atlantic by @the_quietdev

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14 days ago

I'm Udeme, a software engineer in Lagos 🇳🇬

I'm learning how money moves online by building a real payment flow: payments, webhooks, security.

This week I started with Paystack's authentication docs. I'll share what I learn, and what I get wrong, along the way.

Follow along. 📌

#softwareengineer #fintech #payments #buildinpublic #nextjs #paystack #the_quietdev by @the_quietdev

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18 days ago

You've clicked "checkout" online more times than you can count.

Behind that one click — a whole conversation happens between machines you'll never see, in a language most people never learn.

I'm learning that language right now, by building something real. This is the vocabulary you'll need for what I share next.

Save this one. 📌

#webdevelopment #softwareengineering #fintech #buildinpublic #javascript #nextjs #paystack #the_quietdev by @the_quietdev

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20 days ago

A little more about what I do and what I'm getting into.

I'm a Software Engineer building software, learning, experimenting, and becoming increasingly interested in how technology handles money.

I'll be sharing what I build, what I learn, and what I figure out along the way.

— @the_quietdev by @the_quietdev

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21 days ago

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3 months ago

Happy Sunday Family ❤

#sunday #tech #thequietdev by @the_quietdev

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3 months ago

I turned a search bar into a growth feature & shipped alongside it an AI Chat coach that greets visitors and steers the conversation towards their leadership goals!

I'm building ACE Leadership, a leadership coaching platform centered on 3 pillars: Agency, Collaboration, Empathy.

#leadership #agency #collaboration #empathy #thequietdev by @the_quietdev

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3 months ago

Content upload on the blog page using the custom built in admin panel 👌✌

#tech #developer #business #javascript #website by @the_quietdev

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3 months ago