About

Who Am I?

AI & Backend Engineer

I am a software developer with experience building and deploying web applications and AI-based systems using technologies such as Next.js, NestJS, TypeScript, and MongoDB. I have had the main responsibility for the development of Chattrick, an AI-powered customer service platform that is currently being tested by enterprise clients in Southeast Asia and Norway. I am currently Lead Developer at Chattrick Europe AB in Stockholm, where I lead the Chattrick AI platform—system architecture, backend design, and AI infrastructure.

In my work, I operate across the entire stack—from frontend to backend and infrastructure. I have set up CI/CD pipelines, managed deployments with Docker Swarm and Kubernetes, and worked with monitoring and logging using Grafana and Loki.

I also work with developing and optimizing RAG systems and AI chatbots using tools such as Qdrant and OpenSearch, and continuously evaluate new technologies to improve quality and performance. In addition to development, I regularly participate in meetings with international clients to help with technical questions and solutions.

I enjoy building simple, reliable, and secure systems that solve real problems.

Personal Info

Phone+46-76 129 63 63
Emailhezarehee.h@gmail.com
LocationKlasrovägen 39B
19149 Stockholm, Sweden
BirthdaySeptember 10, 1997

What I do!

Frontend Development

Building modern, performant web applications using Next.js with TypeScript, leveraging server-side rendering (SSR), static site generation (SSG), and other Next.js features. Creating responsive interfaces with ShadCN UI components and managing data with SWR for optimal user experience.

#Next.js#TypeScript#ShadCN#SWR#SSR#SSG#React#Tailwind CSS#HTML5#CSS3

Backend Development

Developing robust backend services using NestJS and MongoDB in a microservices architecture. Building RESTful APIs and maintaining scalable backend systems for AI-powered applications, with expertise in Java Spring Boot for additional enterprise solutions.

#NestJS#MongoDB#RESTful APIs#Microservices#Java#Spring Boot#MySQL#PostgreSQL

DevOps & Deployment

Managing containerized deployments using Docker, GitHub Container Registry (GHCR), and Portainer. Following a comprehensive testing and deployment workflow including feature development, testing, Docker image creation, and manual service updates.

#Docker#Docker Swarm#Portainer#Kubernetes#IaC#CI/CD#Git#GitHub Actions#GitHub#Rancher

Software Testing & QA

Comprehensive testing across frontend and backend applications. Frontend testing includes component testing, integration testing, and end-to-end testing using Jest and Cypress. Backend testing focuses on controller and service layer testing with Jest for robust API validation.

#Jest#Playwright#Component Testing#Integration Testing#E2E Testing#Controller Testing#Service Testing

AI/ML Development

Developing AI agentic systems and intelligent applications that can reason, plan, and execute tasks autonomously. Building conversational AI, chatbots, and AI agents that can interact with users and systems intelligently.

#AI Agents#Conversational AI#OpenAI Agents SDK#Chatbots#Autonomous Systems#Task Planning#Intelligent Automation

RAG Systems

Built a comprehensive RAG (Retrieval-Augmented Generation) system using Express.js for web crawling, MongoDB for storing web page data, and Qdrant for vectorizing and storing embeddings. Creating intelligent knowledge retrieval systems for enhanced AI responses.

#RAG Systems#Express.js#MongoDB#Qdrant#OpenSearch#Reranking CrossEncoder#Web Crawling#Vector Databases#Knowledge Retrieval#Embeddings

Technologies that I have worked with so far...

Docker

Docker is a set of platform as a service products that use OS-level virtualization to deliver software in packages called containers.

Kubernetes

Kubernetes is an open-source container orchestration system for automating software deployment, scaling, and management.

Express.js

Express.js is a minimal and flexible Node.js web application framework that provides a robust set of features for web and mobile applications.

Flask

Flask is a micro web framework written in Python, known for its simplicity and flexibility in web application development.

Google Cloud Platform

Google Cloud Platform offers cloud computing services such as data storage, machine learning, and container orchestration.

Java

Java is a high-level, class-based, object-oriented programming language designed to have as few implementation dependencies as possible.

JavaScript

JavaScript is a programming language that is one of the core technologies of the World Wide Web, enabling interactive web pages.

MongoDB

MongoDB is a source-available cross-platform document-oriented database program, classified as a NoSQL database.

MySQL

MySQL is an open-source relational database management system based on SQL (Structured Query Language).

Node.js

Node.js is an open-source, cross-platform, back-end JavaScript runtime environment that executes JavaScript code outside a web browser.

React

React is a free and open-source front-end JavaScript library for building user interfaces based on UI components.

TypeScript

TypeScript is a programming language developed and maintained by Microsoft that adds static typing to JavaScript.

Next.js

Next.js is a React framework that enables server-side rendering and static website generation for building modern web applications.

PostgreSQL

PostgreSQL is a powerful, open-source object-relational database system with a strong reputation for reliability and feature robustness.

Python

Python is a high-level, interpreted programming language known for its simplicity and readability, widely used in web development and data science.

Spring Framework

The Spring Framework is an application framework and inversion of control container for the Java platform.

Figma

Figma is a web-based vector graphics editor and prototyping tool that allows multiple people to collaborate in real-time.

GitHub

GitHub is a web-based platform for version control and collaboration using Git, widely used for open-source projects.