Hello World, I amAli Ahsan Mohammad Mojahid
Software Developer with 4+ years of experience delivering full-stack, mobile (Android, iOS), backend, and AI-powered applications. Proven track record of building scalable systems, real-time communication platforms, enterprise automation tools, and AI powered solutions used in production environments.
Professional Journey
A chronological timeline of software engineering accomplishments, low-latency AI integrations, and high-performance server administration.
Software Developer
Build and maintain Android apps with clean architecture and real-time features. Deliver full-stack features with React, PostgreSQL/MySQL in Agile teams, manage CI/CD, Docker deployments, and system performance on cloud servers, and integrate AI/LLM-based automation into production applications.
AI/ML Developer
Built AI call assistants and web-based voice systems using OpenAI Whisper, GPT, and TTS pipelines integrated with FreePBX/PJSIP for real-time SIP call handling with sub-2-second response latency. Developed RAG-based enterprise chatbots using LLaMA, Groq API, and LangChain, enabling document-grounded Q&A with role-based access control. Created AI agentic systems capable of autonomous multi-step task execution, administrative analytics, and workflow automation.
Software Developer
Delivered multiple production applications in Java and Kotlin Multiplatform (KMP) using Jetpack components deployed to the Google Play Store and Apple App Store. Implemented real-time SIP/VoIP calling, push notifications, payment integrations, and WebSocket live services.
Cloud & Server Administrator
Designed and managed scalable, secure infrastructure on AWS EC2 and Alibaba Cloud, including automated provisioning, load balancing, SSL termination via Nginx, and Cloudflare CDN/DNS. Administered Ubuntu/Debian Linux servers, built Docker containers, and maintained high-availability environments for production-grade applications. Hardened server security with SSH key management, UFW firewall rules, fail2ban, and automated backup/disaster recovery procedures.
Technical Expertise
Proficiency chart showing my tools, design methodologies, server orchestration suites, and core programming libraries.
Frontend Development
Creating professional, clean, and responsive monospaced interfaces
Backend Development
Constructing event-driven microservices and automated server engines
AI & VoIP Systems
Integrating LLMs, prompt pipelines, and real-time audio systems
Mobile & DevOps
Engineering secure, certified deployments on physical nodes and mobile OS
Featured Projects
Deployments of SaaS systems, interactive client dashboards, and cross-platform native smartphone apps.
Syran beauty & skincare platform
Designed and launched a full-featured beauty and skincare retail platform, including an e-commerce website and point-of-sale (POS) system.
Urbane Cleaning Service Website
Architected and shipped an Australian Cleaning Service provider Website for collecting bookings dynamically.
WholesalePlus BD dropshipping platform
Architected and delivered a full-scale dropshipping platform integrated with China's 1688 wholesale marketplace.
DIU Smart Proctor System
A university-adopted AI-powered real-time exam proctoring system featuring computer vision activity monitoring.
AI VoIP Voice Call Assistant
Real-time AI voice phone call handler using Whisper STT, GPT, and custom TTS audio streams.
RAG Enterprise Chatbot
Document-grounded enterprise chatbot utilizing Groq API, LangChain, and role-based access control.
PDF-to-Audio REST API
Node.js REST API extracting PDF scripts and generating voice MP3 files using Google TTS.
TMDB Android Movie Explorer
Clean architecture Android client consuming The Movie Database API using Retrofit and MVVM design patterns.
Initialize Connection
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>_ send_message();
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