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Zia Ullah (@ziaullahzia) | Hashnode

@ziaullahzia

Zia Ullah

@ziaullahzia·Stockholm, Sweden·Joined June 2026

Full-Stack Developer · Technical Writer · Azure

About

Zia Ullah is a Full Stack Developer at ValueAdd Solution Scandinavia AB - https://www.valueadd.se/ in Sweden, with a Master's in Software Engineering and a Bachelor's in Computer Science. He has 13+ years of experience building and deploying cloud applications on Azure, designing CI/CD pipelines with GitHub Actions and Azure DevOps, and implementing secure authentication, authorization, and API security. He is a technical writer whose articles have been published on leading developer platforms and high-authority technology publications, where he shares practical insights on web development, cloud computing, DevOps, cybersecurity, and software engineering. Connect with him on LinkedIn - https://www.linkedin.com/in/zia-ullah/

Available for

Technical writing, guest posts, and freelance development work.

Zia Ullah's blogs

freeCodeCamp Englishfreecodecamp.org/news6 posts

LogMedlogmed.hashnode.dev1 post

About

Zia Ullah is a Full Stack Developer at ValueAdd Solution Scandinavia AB - https://www.valueadd.se/ in Sweden, with a Master's in Software Engineering and a Bachelor's in Computer Science. He has 13+ years of experience building and deploying cloud applications on Azure, designing CI/CD pipelines with GitHub Actions and Azure DevOps, and implementing secure authentication, authorization, and API security. He is a technical writer whose articles have been published on leading developer platforms and high-authority technology publications, where he shares practical insights on web development, cloud computing, DevOps, cybersecurity, and software engineering. Connect with him on LinkedIn - https://www.linkedin.com/in/zia-ullah/

Available for

Technical writing, guest posts, and freelance development work.

Zia Ullah's blogs

freeCodeCamp Englishfreecodecamp.org/news6 posts

LogMedlogmed.hashnode.dev1 post

Articles Comments

Recently published

ZUZia Ullahinfreecodecamp.org·Jul 24 · 19 min read

How to Build an AI Agent with Function Calling in Node.js Using Google Gemini

Last year, a client asked me to add a conversational interface to their internal reporting tool. Staff would type a question, and the system would pull a live answer from the database. I had the first

ZUZia Ullahinfreecodecamp.org·Jul 20 · 21 min read

How to Build a Multi-Tenant SaaS API with Node.js, RBAC, and Audit Logging

A colleague asked me to help debug what looked like a permissions issue in their SaaS project management tool. Users were seeing resources they hadn't created. I pulled up the query logs expecting som

ZUZia Ullahinfreecodecamp.org·Jul 20 · 21 min read

How to Manage Secrets Securely with Azure Key Vault in Node.js

Last year a client called me about exactly this. Someone ran git log -p on a hunch and found a .env committed two years earlier, never caught. Database password, Stripe secret, JWT signing key — all s

ZUZia Ullahinfreecodecamp.org·Jul 15 · 20 min read

How to Build a RAG Chatbot for Your Docs with Node.js, Google Gemini, and pgvector

I was helping a team that had a 200-page API documentation PDF. Every new engineer spent their first two weeks Ctrl+F-ing through it, asking the same questions in Slack, getting redirected to the same

ZUZia Ullahinfreecodecamp.org·Jul 14 · 14 min read

How to Containerize a Node.js Application with Docker and Deploy with GitHub Actions

If you've been building Node.js projects, you've probably had an experience like this. The project runs fine on your machine, but when you push it to a server, something breaks. Maybe it's a different