Md. A.

Software engineer and technical leader with 19+ years of experience building AI-powered, web, mobile, AR/VR and interactive applications. Experienced in taking products from architecture and technical planning through development, deployment and team leadership. Completed 108+ Upwork jobs with 5-star feedback, Top Rated Plus status and 100% Job Success Score. Strong at turning emerging technologies into practical, user-facing products. CORE EXPERTISE - AI Application Engineering: Generative AI integration, LLM API integration, voice and image generation, computer vision and image processing pipelines. Software Architecture: Full-stack architecture, REST API design, backend systems, databases, cloud/server deployment. XR & Interactive: AR/VR application design, WebAR/WebXR delivery, image and marker tracking, multi-device deployment. Product Delivery: Technical planning, product development, client communication, freelance consulting. Team Leadership: Led teams of up to 8 across engineering, design and animation; architecture ownership; technical direction. SELECTED TECHNOLOGIES - AI & APIs: OpenAI API, Claude API, Unity MCP, Computer Vision, Image Processing, Machine Learning. Languages: C#, C++, C, Java, JavaScript, TypeScript, Python, PHP, Dart, Objective-C, Swift, Shader Programming. Web/Backend: Node.js, Express.js, React, Vue.js, Next.js, Angular, Laravel, WordPress, REST. Mobile: Flutter, iOS, Android, Ionic. XR/3D: Unity, Unreal Engine, AR Foundation, XR Interaction Toolkit, Vuforia, ARKit, ARCore, OpenCV, Three.js, A-Frame, AR.js, MindAR, WebGL. XR Devices: Meta Quest, Apple Vision Pro, PICO VR, HTC Vive, Google Cardboard. Data/Infra: PostgreSQL, MySQL, MongoDB, SQLite, DynamoDB, Firebase, Linux, Apache, Tomcat, Nginx, AWS. Tools: Git, GitHub, Bitbucket, Visual Studio, VS Code, Xcode, Android Studio, Cursor, GitHub Copilot, Claude Code. Embedded: PIC microcontrollers, TMS320C50 DSP, Embedded C, MASM, PSpice, Robotics, Port Interfacing. AWARDS - • Achieved 3rd, 5th and honorable positions in inter-university programming contests.