Professional Journey
A interactive timeline of software engineering accomplishments, AI integrations, mobile architectures, and high-performance server administration.
Software Developer
Vice President, Development Wing
Software Developer
Software Developer — Freelance & Open Source
AI/ML Developer — Independent & Freelance Projects
Cloud & Server Administrator — Independent & Freelance Projects
Software Developer
Overview & Scope
Build and maintain Android applications using clean architecture and real-time features. Deliver full-stack features across web and mobile applications, manage CI/CD pipelines, Docker deployments, and system performance on cloud servers, and integrate AI/LLM-based automation into production applications.
Technologies & Stack
Software Developer
Build and maintain Android applications using clean architecture and real-time features. Deliver full-stack features across web and mobile applications, manage CI/CD pipelines, Docker deployments, and system performance on cloud servers, and integrate AI/LLM-based automation into production applications.
Vice President, Development Wing
Lead development initiatives for club projects, overseeing Web and Applications built with clean architecture and real-time features. Guide delivery of full-stack features across club applications.
Software Developer
Built and maintained Android applications with clean architecture and real-time features. Delivered full-stack features using React, Next.js, and Fastify within Agile teams. Managed CI/CD pipelines, Docker deployments, and system performance on cloud servers, and integrated AI/LLM-based automation into production applications.
Software Developer — Freelance & Open Source
Delivered multiple production applications in Java and Kotlin Multiplatform using Jetpack components, published to the Google Play Store and Apple App Store. Implemented real-time SIP/VoIP calling (Linphone SDK, PJSIP), push notifications (Firebase and custom backends), payment integrations (Stripe, bKash, Nagad), and WebSocket live services.
AI/ML Developer — Independent & Freelance Projects
Built AI call assistants and web-based voice systems using OpenAI Whisper (STT), GPT (NLP), 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 for business clients. Created AI agentic systems capable of autonomous multi-step task execution, administrative analytics, and workflow automation for enterprise use cases. Integrated AI/ML features into applications using on-device and cloud-based inference pipelines with Python and OpenAI APIs.
Cloud & Server Administrator — Independent & Freelance Projects
Designed and managed scalable, secure infrastructure on AWS EC2 and Alibaba Cloud, including automated provisioning, load balancing, and 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.