Nazar H.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 Jul 17, 2026.

Hi! I'm a Python and Embedded Systems Developer with deep experience across backend engineering, firmware development, IoT solutions, and hardware-software integration. I work with clients building everything from FastAPI and Django backend platforms to real-time embedded systems running on microcontrollers, RTOS environments, and edge devices. Whether you need a reliable Python backend powering a cloud-connected IoT product, a firmware engineer who understands the full stack from hardware to API, or a backend developer building automation and data pipelines, I cover the full range. 1. Python Backend Development I specialize in building production-grade backend systems using FastAPI, Django, Flask, and Tornado. My Python work covers REST API development, secure authentication with OAuth2 and JWT, microservices architecture, async processing, background tasks, ETL pipelines, automation workflows, PostgreSQL and MongoDB database design, and web scraping and data extraction. Every project gets clean, maintainable code built for scale and long-term reliability. 2. Embedded Systems & Firmware Development On the embedded side, I develop firmware and low-level software for microcontrollers and embedded platforms including STM32, ESP32, Arduino, Raspberry Pi, and ARM Cortex-M devices. My embedded work covers bare-metal C and C++ firmware development, RTOS integration (FreeRTOS, Zephyr), hardware abstraction layers, peripheral driver development (UART, SPI, I2C, GPIO, ADC), real-time data acquisition, power optimization, and OTA firmware update systems. I also work with MicroPython and CircuitPython for rapid embedded prototyping. 3. IoT & Hardware-Software Integration I bridge the gap between hardware and cloud — connecting embedded devices to backend platforms via MQTT, CoAP, WebSockets, and REST APIs. I build end-to-end IoT systems: firmware on the device, a Python backend handling data ingestion and processing, and dashboards or APIs serving the data to web or mobile frontends. I've worked with AWS IoT Core, MQTT brokers, edge computing setups, and real-time telemetry pipelines. 5. Machine Learning & Automation For ML-driven platforms, I assist with machine learning model integration, data preprocessing and feature pipelines, automation scripts, workflow orchestration, and deploying models to both cloud backends and edge devices where inference needs to run locally. Why Clients Choose Me I'm one of the few developers who is equally comfortable writing low-level embedded firmware in C and building a scalable Python API in FastAPI. If you're building a connected product, an IoT platform, or a hardware-software system that needs a developer who understands both sides — I'm the right fit. Clean code, strong communication, fast delivery, and the ability to lead backend or embedded work independently or integrate into your existing team. Ready to build? I work with Python, FastAPI, Django, Flask, C, C++, MicroPython, STM32, ESP32, Raspberry Pi, FreeRTOS, MQTT, AWS IoT, PostgreSQL, MongoDB, Docker, REST APIs, automation workflows, machine learning integration, and full-stack collaboration across hardware and software.