Arifur.

About

Full Stack Developer with strong expertise in AI-powered systems, including Retrieval-Augmented Generation (RAG), agentic AI, AI agents, and LLM integrations. I design, develop, and maintain scalable web applications and complex marketplace solutions with a focus on performance, security, and responsiveness.

Arifur Rahman Abir professional headshot

Dhaka, Bangladesh · Open to full-time & contract opportunities

Skills

AI & Machine Learning

  • Retrieval-Augmented Generation (RAG)
  • Agentic AI Systems
  • AI Agents Development
  • LLM Integration
  • Prompt Engineering
  • AI Workflow Automation

Back-End

  • NestJS
  • Node.js
  • Express.js
  • Laravel
  • CakePHP
  • REST API Development
  • Microservices Architecture

Front-End

  • Next.js
  • React.js
  • Angular
  • Redux
  • Tailwind CSS
  • Bootstrap
  • Chart.js

Databases

  • MySQL
  • MongoDB
  • PostgreSQL
  • Redis
  • pgvector

DevOps & Server

  • Docker
  • Jenkins (CI/CD)
  • Proxmox
  • DigitalOcean
  • cPanel
  • WHM
  • Deployment & Server Management

Tools & Miscellaneous

  • WebSockets
  • Mongoose
  • Konga (API Gateway)
  • GitHub
  • GitLab
  • Jira
  • ClickUp

Animated skills

A lightweight motion view of the full skill surface.

RAGAgentic AI SystemsAI Agents DevelopmentLLM IntegrationPrompt EngineeringAI Workflow AutomationNestJSNode.jsExpress.jsLaravelCakePHPREST API DevelopmentMicroservices ArchitectureNext.jsReact.jsAngularReduxTailwind CSSBootstrapChart.jsMySQLMongoDBPostgreSQLRedispgvectorDockerCI/CDProxmoxDigitalOceancPanelWHMDeployment & Server ManagementWebSocketsMongooseKongaGitHubGitLabJiraClickUp

Experience

  1. Nov 2022 – Present

    Full Stack Developer — Easital Technologies Ltd.

    Banglamotor, Dhaka

    Design, develop, and maintain scalable web applications using modern front-end and back-end technologies. Build AI-enabled platforms, RAG-based systems, and complex marketplace solutions while ensuring high performance, security, and responsiveness. Collaborate with product managers, designers, and engineers to deliver customized business solutions, optimize system architecture, and improve user experience across multiple production systems.

  2. Sep 2020 – Nov 2022

    Software Engineer — Creative IT Institute

    Dhanmondi, Dhaka

    Developed and maintained multi-platform software applications, implementing new features based on client and user requirements. Improved system efficiency by optimizing database queries and application logic, participated in code reviews and testing, and collaborated with cross-functional teams to deliver reliable, scalable, and maintainable solutions.

  3. Aug 2018 – Jan 2020

    Web Developer — Ingenious Technologies Ltd.

    Malibag, Dhaka

    Built responsive and interactive web applications using HTML, CSS, JavaScript, and modern frameworks such as React and Node.js. Worked closely with designers and backend engineers to deliver user-friendly interfaces, improve website performance, and ensure cross-browser compatibility while meeting project deadlines and client expectations.

Education

  • 2012 – 2016

    B.B.S (Bachelor of Business Studies)

    Mohammadpur Kendriya College, Dhaka

  • 2009 – 2011

    Higher Secondary School Certificate (HSC)

    Ashulia High School and College, Dhaka

  • 2006 – 2009

    Secondary School Certificate (SSC)

    Ashulia High School and College, Dhaka

Certifications

  • 2016

    Web Development

    Awarded by Dhaka University (IIT)

  • 2017

    Web Development

    Awarded by BASIS (Business Application Software Integrated Solution)

  • Web Development

    Awarded by LICT

GitHub activity

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