Arifur.

Portfolio

Case-style breakdowns of products I have contributed to, with stack and key contributions. Use filters to focus on AI, web, or platform work.

  • Calldone AI

    ai

    An AI voice automation and call-center platform for building and managing intelligent voice agents that handle real-time inbound and outbound phone conversations.

    Tech stack

    • Go (Gin & Chi)
    • Next.js
    • PostgreSQL
    • WebSockets
    • Twilio
    • LLM Integration

    Key contributions

    • Built scalable APIs and real-time call workflows across the platform's frontend and backend architecture
    • Developed AI agent management, telephony integrations, call routing, recordings, transcripts, and summaries
    • Delivered appointment scheduling, lead qualification, knowledge-base capabilities, and analytics dashboards
    • Integrated AI and real-time communication systems on infrastructure sized for production voice-agent workloads
    Live link →

  • Manob AI

    ai

    A hybrid platform that combines human expertise with AI-powered automation for digital product customization and marketplace services.

    Tech stack

    • Next.js
    • NestJS
    • RAG Pipelines
    • LLM APIs
    • TypeScript
    • MongoDB

    Key contributions

    • Led development of scalable backend services and interactive frontend components
    • Built AI-powered customization with intelligent content processing and workflow automation
    • Contributed to API architecture, AI integration, and performance optimization
    Live link →

  • Advent Circle

    web

    A community-driven platform connecting people, organizations, and churches, with donation support, geo-location-based discovery, and an AI-powered Pastor AI assistant for faith guidance.

    Tech stack

    • Next.js
    • Node.js
    • PostgreSQL
    • Geo-location
    • REST APIs
    • LLM Integration

    Key contributions

    • Implemented core backend systems and responsive frontend interfaces
    • Integrated the Pastor AI assistant for intelligent, faith-focused interactions
    • Enabled scalable services that improved community engagement and discovery
    Live link →

  • Rent A Car

    platform

    Sarker Rent A Car — a vehicle rental and transportation platform serving customers across Bangladesh, covering fleet presentation, bookings, and customer inquiries.

    Tech stack

    • Laravel
    • MySQL
    • JavaScript
    • Bootstrap
    • REST APIs

    Key contributions

    • Developed vehicle management, rental, and booking workflows end-to-end
    • Built customer inquiry functionality plus service and fleet presentation pages
    • Improved usability, performance, and reliability across frontend and backend
    Live link →

  • PIXI AI

    ai

    An intelligent assistant that helps users discover products, services, and job opportunities while guiding them through purchasing and service-order workflows integrated with PackMyCode.

    Tech stack

    • LLM Integration
    • Prompt Engineering
    • Node.js
    • React
    • WebSockets

    Key contributions

    • Designed and developed the system's core logic and user-facing flows
    • Built AI-driven guidance features for automation and recommendation accuracy
    • Improved overall usability across the platform
    No public link yet

  • NFTO

    platform

    An NFT marketplace enabling secure buying, selling, and trading of digital assets.

    Tech stack

    • Laravel
    • MySQL
    • Web3 touchpoints
    • API integrations

    Key contributions

    • Supported marketplace development across server-side and client-side components
    • Implemented asset management workflows and user interaction features
    • Delivered performance improvements for a stable and secure trading environment
    Live link →