Mandla

@IamMandla

Developer | Data & Infrastucture

Joined June 2023

About

I write about my journey through development, data Engineering, DevOps, and hands-on projects, sharing practical insights and lessons I learn along the way.

Available for

Jobs, Collaborations, Blogging Gigs, Mentoring

Mandla's blogs

Mandla's Tech blogiammandla.hashnode.dev15 posts

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Recently published

MMandlaiammandla.hashnode.devMar 26 · 9 min read

I Built a FinTech Data Pipeline a CFO Can Actually Trust — Lessons from the Journey

So I gave myself a challenge, to build a production-grade data pipeline from scratch, using real industry tools, at zero cost, and document every stumble along the way. This is that story. The Proble

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MMandlaiammandla.hashnode.devMar 15 · 7 min read

The $440 Million Lesson Every Data Engineer Should Know (And how I came to something similar)

It started with a simple observation. I was building a FinTech credit ledger pipeline that ingests raw transaction data into Google BigQuery, cleans it with dbt, and results in surfacing it to a CFO d

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MMandlaiammandla.hashnode.devSep 19, 2025 · 2 min read

Building a Secure Hospitality Management System with Flask and DevSecOps Principles

Small businesses in certain areas often rely on spreadsheets and manual invoicing to manage client records like bookings and cash flow. For small to medium guest houses/B&Bs, this is not only inefficient but also exposes sensitive guest data to secur...

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MMandlaiammandla.hashnode.devSep 10, 2025 · 5 min read

From Container to Cloud (Pt 4)

Hey friends, what a journey it's been. We've gone from a few lines of Flask code to a securely built Docker image. In the last post, Making Your Container Public and The Power of a Registry, we looked at publishing our container to a registry so it c...

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MMandlaiammandla.hashnode.devSep 4, 2025 · 3 min read

Making your Container Public and The Power of a Registry

Hey friends, In the last activity, I walked you through the exciting process of Dockerizing the Flask blog. In the end the application was safely tucked inside its own portable container, running perfectly on my machine. But an app running only on my...

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Mandla

About

Available for

Mandla's blogs

Recently published

I Built a FinTech Data Pipeline a CFO Can Actually Trust — Lessons from the Journey

The $440 Million Lesson Every Data Engineer Should Know (And how I came to something similar)

Building a Secure Hospitality Management System with Flask and DevSecOps Principles

From Container to Cloud (Pt 4)

Making your Container Public and The Power of a Registry

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Mandla

About

Available for

Mandla's blogs

Recently published

I Built a FinTech Data Pipeline a CFO Can Actually Trust — Lessons from the Journey

The $440 Million Lesson Every Data Engineer Should Know (And how I came to something similar)

Building a Secure Hospitality Management System with Flask and DevSecOps Principles

From Container to Cloud (Pt 4)

Making your Container Public and The Power of a Registry