Karthikeyan P.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Software Architect with 18 years of experience in designing and developing Embedded software, software development kits, user interface toolkits, software frameworks and applications on Linux, Android Open Source Project(AOSP) and on Real Time Operating Systems like Thread X and freeRTOS. PROFESSIONAL SUMMARY: • Hands-on experience working in multiple layers of embedded software starting from device bring-up to developing applications. • Hands-on experience in building sales, marketing, and operations dashboards using the Zoho Analytics platform. • Hands-on experience in creating applications using Zoho Creator. • Designing and Developing Frameworks for humanoids and wheeled robots on Android Open Source Project(AOSP). • Designing and Developing E-Ink based Baggage Tags. • Designed and developed Smart Speaker frameworks and numerous features for platforms based on FreeRTOS, ESP32 and Android Open Source Project(AOSP). • Designing and Developing Alexa voice service(AVS) clients on - C Language for Real-time operating systems like FreeRTOS - C++ Language for platforms based on AOSP - Java for Android applications - Swift for iOS applications • Designed and developed Alexa Device SDK based assistants for wired and wireless Bluetooth headsets. • Have designed and developed custom voice assistant for saregama carvaan on ESP32 and AOSP based Platform right from embedded software to cloud framework. • Designed and Developed Android and iOS companion applications for smart speakers. • part of the team that designed and developed network audio streaming Platforms for Thread X and Linux based Digital Media players. • Experience in working with big tech companies like - Apple for the implementation of Airplay technology for platforms based on FreeRTOS and Android Open Source Project(AOSP). - Google for the integration of Google Cast for Android Open Source Project(AOSP). - Amazon for the implementation of Alexa Voice Service(AVS) Clients. - DSPG group for wake word integration for voice assistants • Experience in working with chip vendors like Mediatek,Espressif Systems right from device and driver bring up to fixing issues in firmware and developing applications. • Good knowledge and experience in Android open source Project(AOSP). • Solid understanding of C++ design patterns and principles • Strong in debugging embedded applications, firmware and fixing critical issues • Guided team members for debugging complex issues and designing and developing scalable, reusable and maintainable Software frameworks.