S
About

Portrait of Sadia Afrin
Open to full-time roles & freelance

Hi, I'm Sadia — an AI-integrated full-stack engineer with a background in Computer Science from Islamic University of Technology.

I build web and mobile products end to end — Spring Boot and Node.js APIs, Next.js and React front-ends, React Native and Flutter apps — and integrate AI into them: RAG pipelines that answer from real documents and n8n agents that automate real workflows.

My engineering is shaped by real-world experience on both sides of the build. At New BCIT Systems I shipped React Native features for an e-commerce app. At Techzu I designed a multi-platform POS experience for a Singapore brand and QA-tested four production apps before release.

That means I write code with the user and the edge cases in mind — and I can own a feature from API to interface to release.

Moments

Drag to explore.

Principles

01

Own it end to end

Database, API, front-end, deployment. I'd rather understand the whole system than hand off half of it.

02

AI where it earns its place

Retrieval, agents, and automation that solve a real problem — grounded in real data, not demos.

03

Usable and release-ready

My UI/UX and QA experience means I build with users, edge cases, and error states in mind from day one.

Toolkit

AI & LLMs

  • RAG Pipelines
  • Embeddings
  • Vector DBs (FAISS)
  • n8n Agents
  • Prompt Engineering
  • OpenAI / Groq APIs

Backend

  • Spring Boot
  • Node.js
  • Express
  • REST APIs
  • Authentication & RBAC

Frontend

  • Next.js
  • React
  • TypeScript
  • Tailwind CSS

Mobile

  • React Native
  • Flutter
  • Dart
  • Firebase

Data

  • PostgreSQL
  • MongoDB
  • SQL
  • Vector Stores

Languages

  • TypeScript
  • JavaScript
  • Python
  • Java
  • Dart
  • C / C++
  • SQL

UI/UX Design

  • Figma
  • Design Systems
  • User Flows
  • Prototyping
  • Usability Testing

Quality & Tools

  • Functional & Regression Testing
  • Bug Tracking
  • Postman
  • Git & GitHub
  • Maven
Education

Islamic University of Technology

B.Sc. in Computer Science and Engineering · CGPA 3.35

Gazipur, Dhaka · Aug 2022 – Sep 2026

Artificial IntelligenceMachine LearningWeb ArchitectureData Structures & AlgorithmsObject Oriented ProgrammingDatabase Management SystemsSystem Analysis & DesignDesign Patterns
Recognition
  • 2nd Runner Up

    Robotics and IoT Project League

    Global Robotics and Innovation Championship (GRIC)

    2026
  • 27th Position

    Intra University Competitive Programming

    Islamic University of Technology

    2023
  • 6th Position

    Intra College Math Olympiad

    Rajuk

    2019
Next step

I'm looking for full-time full-stack and AI engineering roles, and I take on select freelance projects.