Available for technical writing & collaborations

Hi, I'm Zia Ullah
Full Stack Developer

13+ years building web and mobile applications for SaaS, healthcare, and e-commerce. Based in Sweden. Specializing in React, Next.js, Node.js, Python, and Azure.

Get in touch Read my articles
Zia Ullah
Background
About Me
13+
Years of experience
5
Companies across 3 countries
MSc
Software Engineering
10+
Published articles

I'm a full-stack developer currently working at ValueAdd Solution Scandinavia AB in Sweden, where I build and maintain web and mobile applications across healthcare, logistics, e-commerce, legal, and construction industries.

My stack centers on React, Next.js, Node.js, and Azure — but I'm equally comfortable on the backend with Python, PostgreSQL, and GraphQL, and in the cloud with CI/CD pipelines and Azure DevOps.

Outside my day job I'm the developer behind taltolk.se, an AI-powered translation SaaS, and I write technical tutorials published on freeCodeCamp (6 articles, DA 91), DevOps.com (DA 68), Dev.to, and other developer publications.

🔗 LinkedIn 🐙 GitHub ✍️ Published Articles 🚀 taltolk.se
  • LocationSweden
  • Current roleFull Stack Developer
  • CompanyValueAdd Scandinavia AB
  • EducationMSc Software Engineering
  • LanguagesEnglish, Swedish, Urdu
  • Emailzia.ullah@valueadd.se
Tech Stack
Skills
Frontend
React.js Next.js TypeScript AngularJS Tailwind CSS Redux HTML5 / CSS3
Backend
Node.js Express.js Python PHP .NET GraphQL REST APIs
Cloud & DevOps
Microsoft Azure GitHub Actions Azure DevOps CI/CD Git Docker
Databases
PostgreSQL MongoDB MySQL Firebase Azure SQL
Mobile & CMS
Flutter WordPress Drupal Moodle
Other
WCAG 2.1 SEO TensorFlow Scikit-Learn Web Security
Career
Experience
Full Stack Developer Jan 2021 – Present
ValueAdd Solution Scandinavia AB — Sweden
  • Building web and mobile apps with .NET, React.js, Next.js, Node.js, and Flutter across healthcare, logistics, e-commerce, legal, and construction sectors.
  • Designing and deploying scalable cloud solutions on Microsoft Azure — security, reliability, high availability.
  • Configuring Azure DevOps CI/CD pipelines, automated deployments, and release management.
  • Managing and optimizing PostgreSQL, Azure SQL Database, and other database solutions.
  • Developing responsive, accessible UIs compliant with WCAG 2.1 standards.
Programmer Oct 2017 – Dec 2019
Predicare AB — Sweden
  • Developed and maintained healthcare web applications using React, AngularJS, Node.js, and PHP.
  • Customized Moodle-based medical decision support systems with secure authentication solutions.
  • Performance optimization, testing, and workflow automation using Grunt/Gulp.
Software Developer Oct 2016 – Mar 2017
Icomera AB — Sweden
  • Built map observer applications for real-time train tracking and operational accuracy.
  • Developed and enhanced Wi-Fi connection interfaces for trains and buses.
  • Designed front-end GUIs for in-house applications using AngularJS and JavaScript.
Web Developer Aug 2010 – Sep 2016
Freelance World Network — USA (Remote)
  • Designed and developed high-performance, SEO-optimized web applications using React.js, AngularJS, Node.js, and PHP for various industries.
  • Managed backend services and real-time databases using Google Firebase.
  • Built and customized websites on WordPress, Drupal, and Joomla.
Technical Writing
Published Articles
AI · Node.js · Gemini
How to Build an AI Agent with Function Calling in Node.js Using Google Gemini
A hands-on guide to building an AI agent that calls real tools — weather API, calculator, currency exchange — using Google Gemini function calling in Node.js. Published on freeCodeCamp (DA 91).
Read on freeCodeCamp →
Node.js · SaaS · Architecture
How to Build a Multi-Tenant SaaS API with Node.js, RBAC, and Audit Logging
A complete guide to building a production-ready multi-tenant SaaS backend with tenant isolation, per-tenant RBAC, and full audit logging. Published on freeCodeCamp (DA 91).
Read on freeCodeCamp →
Azure · Security · Node.js
How to Manage Secrets Securely with Azure Key Vault in Node.js
A practical guide to replacing hardcoded .env secrets with Azure Key Vault in Node.js — covering Key Vault setup, access policies, and secret retrieval. Published on freeCodeCamp (DA 91).
Read on freeCodeCamp →
AI · Node.js · PostgreSQL
How to Build a RAG Chatbot for Your Docs with Node.js, Google Gemini, and pgvector
A complete guide to building a retrieval-augmented generation chatbot that answers from your own documents using Node.js, Google Gemini, and pgvector. Published on freeCodeCamp (DA 91).
Read on freeCodeCamp →
Docker · GitHub Actions · Node.js
How to Containerize a Node.js App with Docker and Deploy with GitHub Actions
Step-by-step guide to containerizing a Node.js app with Docker and automating CI/CD deployments with GitHub Actions — every push to main builds, tests, and deploys. Published on freeCodeCamp (DA 91).
Read on freeCodeCamp →
Node.js · Security · Auth
How to Implement Role-Based Access Control in a Node.js REST API with JWT
A complete implementation guide for RBAC in Node.js using JWT — covering role hierarchy, route protection middleware, and a working GitHub repo. Published on freeCodeCamp (DA 91).
Read on freeCodeCamp →
DevSecOps · Azure · CI/CD
How to Build a DevSecOps CI/CD Pipeline on Azure with GitHub Actions
A practical walkthrough of building a security-integrated CI/CD pipeline on Azure — covering SAST, container scanning, secret detection, and automated deployment gates. Published on DevOps.com (DA 68).
Read on DevOps.com →
Node.js · Security
How to Build a Secure Audit Trail in Your Web App (No Third-Party Tools)
A practical guide to implementing a tamper-evident audit log from scratch using Node.js, with cryptographic chaining and no external dependencies.
Read on Dev.to →
Azure · CI/CD · Node.js
How to Deploy a Full-Stack Node.js App on Azure: A Step-by-Step Guide
End-to-end walkthrough of deploying a Node.js/Express application on Microsoft Azure, covering App Service, environment configuration, and deployment pipelines.
Read on Dev.to →
JavaScript · Mobile · Web
How to Build One Web App That Works on iOS, Android, and Desktop
A hands-on guide to building a cross-platform application using web technologies that runs natively on iOS, Android, and desktop without a separate codebase.
Read on Dev.to →
Featured Project
What I'm Building
taltolk.se
An AI-powered translation SaaS built for the Swedish market. Helps businesses and individuals with accurate, context-aware translations using modern AI models.
Next.js Node.js Azure AI SaaS
Visit →
Education
Degrees & Certifications
Master's in Software Engineering 2022 – 2024
City University — Pakistan
Master's in Computer and System Sciences 2010 – 2013
Stockholm University — Sweden
Bachelor's in Computer Science 2005 – 2009
Gomal University — Pakistan
Back End Development and APIs 2025
freeCodeCamp
Front End Development Libraries 2025
freeCodeCamp
2018 Azure Bootcamp 2018
Catapult
Fundamentals of Digital Marketing 2018
Google
JavaScript Algorithms and Data Structures 2018
freeCodeCamp
Responsive Web Development 2017
freeCodeCamp
Research
Academic Projects
Deep Learning · Healthcare · Security
Improving Fraud Detection with Real-Time Accuracy Analysis Using Deep Learning in Healthcare
Developed a fraud detection model using deep learning to analyze healthcare data and identify anomalies in real time. Utilized the Healthcare Providers Data for Anomaly Detection dataset from Kaggle. Implemented ML and DL algorithms including Logistic Regression, Random Forest, XGBoost, CNN, FNN, and RNN. Focused on explainability, security, and real-time detection to ensure reliability in medical data analysis.
City University, Pakistan — MSc Software Engineering (2022–2024)
UX · Accessibility · E-Learning
Designing Attractive User Interfaces for E-Learning Systems
Identified key factors for creating user-friendly interfaces in e-learning systems. Conducted usability testing and used feedback to enhance engagement and usability. Proposed UI/UX best practices to improve the overall learning experience.
Stockholm University, Sweden
Get in touch
Contact

Available for technical writing collaborations, guest posts, freelance projects, and open source contributions. Feel free to reach out.

✉️
Email
zia.ullah@valueadd.se
📍
Location
Sweden

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