I'm a Software Development Engineer with experience building large-scale consumer-device infrastructure, enterprise AI applications, full-stack systems, and mobile applications.

Currently, I work as a Software Development Engineer II at Amazon, where I help develop and maintain the Over-the-Air (OTA) update infrastructure powering millions of Amazon devices, including Fire TV, Echo, and Kindle.

Previously, I worked at C3 AI, building enterprise AI-powered demand forecasting applications, and at Softtek, developing full-stack applications and integrating machine-learning services. I also had the opportunity to intern at Meta, where I worked on Android development.

I enjoy solving complex engineering problems, learning how large-scale systems work, and building software across the stack—from C++ and distributed systems to TypeScript, React, and cloud applications.

• 🔭 Currently working as a Software Development Engineer II at Amazon, contributing to large-scale OTA update systems for consumer devices.
• 🤖 Previously worked at C3 AI, developing enterprise AI-powered applications with TypeScript, JavaScript, React, and Redux.
• ⚙️ Interested in Distributed Systems, Software Architecture, Cloud Computing, AI-powered applications, and System Design.
• 🎹 Built NanoSynth, a VST3 software synthesizer in C++ using digital signal processing techniques.
• 📱 Experienced in Web, Backend, Android, and Full-Stack Development.
• 🧠 I enjoy problem-solving, learning new technologies, and understanding how complex systems work at scale.
• 💬 Ask me about Software Engineering, Distributed Systems, React, TypeScript, Python, Java, and C++.
• 📫 Reach me at marcialquerodavid@outlook.com.

Distributed Systems · System Design · Cloud Computing · Software Architecture · Machine Learning Integration · Full-Stack Development · Digital Signal Processing

A VST3 software synthesizer built in C++ that uses digital signal processing techniques to emulate classic electronic sounds.

• Built with the VST3 SDK and C++
• Implemented a BLEP algorithm for waveform generation
• Worked with COM-style interfaces and object-oriented design
• Developed a custom GUI using VSTGUI