Данііл

Daniil Leheza
Embedded Software Engineer
[open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | github.com/Tr1ggerbtw

Education
Igor Sikorsky Kyiv Polytechnic Institute Kyiv, Ukraine
Bachelor of Software Engineering August 2024 – Present

Summary
Embedded Software Engineering student passionate about C/C++ and hardware-level programming. Focused on firmware
development, microcontroller architecture, and IoT solutions. Seeking an opportunity to apply my knowledge of RTOS,
custom communication protocols, and low-level system design in an Embedded Engineer role.

Projects
IoT Climate Control System | C, ESP-IDF, FreeRTOS, HTTP, cJSON Dec. 2025 – Jan. 2026
• Developed a full-stack IoT solution using ESP32 with ESP-IDF framework running FreeRTOS.

• Implemented multi-threaded firmware architecture using FreeRTOS Tasks and Event Groups for Wi-Fi

synchronization.
• Engineered a bidirectional REST API: embedded HTTP server for actuator control and HTTP client for sensor

telemetry.
• Integrated cJSON library for efficient data serialization and parsing between the microcontroller and backend.

• Designed a modular architecture separating sensor (DHT11) and actuator logic.

Industrial Robotic Arm Controller | C++, ESP32, Arduino, UART, SPI Sep. 2026 – Present
• Engineered embedded firmware for an ESP32-based robotic manipulator, controlling multi-axis joints via PWM

servos and a step/dir stepper motor.
• Implemented a custom UART communication protocol with start-byte framing to securely receive, parse, and map

binary data structures from an external Arduino joystick controller.
• Integrated an SPI-based TFT display using the TFT eSPI library to render real-time system status and fonts.

• Developed hardware constraint logic to protect physical servo limits and ensure safe mechanical operation.

TCP/IP Remote Control System | C++, Winsock2 API, Network Programming April 2025
• Developed a client-server architecture using low-level Windows Sockets (Winsock2) for remote device control.

• Designed a custom application-layer protocol for command transmission and state synchronization.

• Implemented robust error handling for network connection lifecycle.

• Managed raw memory buffers for data transmission, ensuring efficient packet handling without external networking

libraries.

Extracurricular Activities
Hardware & Embedded Engineering Club Kyiv, Ukraine
Active Member May 2026 – Present
• Acquired hands-on experience in hardware assembly, PCB soldering, and 3D printing for embedded projects.

• Designed and prototyped functional electrical devices from scratch, including an Uninterruptible Power Supply

(UPS) and a custom LED flashlight.
• Collaborated in a maker-space environment, translating software concepts into physical electro-mechanical systems.

Technical Skills
Languages: C, C++, SQL (PostgreSQL), Bash
Embedded & Systems: ESP-IDF, FreeRTOS, Linux, GPIO, UART, I2C, SPI, PWM
Network & Protocols: TCP/IP, HTTP, REST, Winsock2, JSON, Sockets
Development Tools: Docker, Git, GitHub, CMake, Make, GCC, VirtualBox
Core Concepts: OOP, Data Structures & Algorithms, System Design, Memory Management, UML