Vishal Kumar Sahni

Mohali Area,PB

Summary

Embedded Systems Engineer with 5 years of experience in embedded hardware, firmware, and PCB design. Proficient in C/C++, ESP32, STM32, ARM Cortex-M, FreeRTOS, UART, SPI, I2C, CAN, LoRa, and hardware debugging using oscilloscopes and logic analyzers. Experienced in developing reliable embedded products from concept through production.

Overview

years of professional experience

Work History

Embedded Systems Engineer

Teravolt Labs

01.2026 - Current

High-Precision Hardware Design: Designed a compact, dual-band GNSS receiver PCB in KiCad utilizing the u-blox F10N platform; implemented strict coplanar waveguide routing and L1/L5 signal mitigation techniques to preserve positioning accuracy in high-EMI environments.
Designed DC-DC buck converters using TI LM76005RNPR for regulated 5 V, 12 V, and 24 V outputs from up to 55 V input.
Designed ESP32 and LoRa-based dual-band telemetry hardware and firmware (2.4 GHz and 868/915 MHz) with a communication range of up to 20 km.

UAV Firmware & Software Engineer

Aerial IQ Pvt. Ltd.

01.2025 - 12.2025

Optimized DroneBridge communication on ESP32, reducing telemetry latency and enabling stable long-range wireless links.
Developed FreeRTOS-based firmware with low-level drivers for I2C, SPI, UART, and CAN, ensuring reliable real-time communication.
Performed hardware bring-up and debugging of custom autopilot PCBs using oscilloscopes and logic analyzers.

R&D Embedded Engineer

Mehra Autonomous System Pvt. Ltd.

06.2022 - 12.2024

Developed modular C/C++ firmware for ESP32 and ARM Cortex-M microcontrollers, optimizing memory usage and boot performance.
Developed sensor interface drivers for I2C, SPI, and UART, enabling reliable real-time data acquisition.
Managed the complete hardware development lifecycle from prototyping and PCB design to testing, debugging, and production.
Collaborated with mechanical and robotics teams to develop and test autonomous drone and robotic systems.

Education

Bachelor of Technology - Electronics and Communication Engineering

Chandigarh Engineering College

06-2025

Diploma - Electronics and Communication Engineering

Chandigarh Polytechnic College

06-2022

Skills

UAV Stack & Mission Autonomy: PX4, ArduPilot, DroneBridge, QGroundControl (Custom UI/UX & Payload Integration), Gazebo SITL/HITL Simulation
Firmware & Real-Time Systems: FreeRTOS (Deterministic Task Scheduling, Semaphores, Queues), Bare-Metal C/C, Embedded Python, State Machines
Hardware Design & RF Integration: KiCad (Multi-layer PCB Layout, Schematic Capture), u-blox F10N Dual-Band GNSS, L1/L5 Signal Mitigation, RF Shielding

Protocols & Telemetry Hardware: CAN bus, I2C, SPI, UART, BLE, Wi-Fi, MQTT, RS-485
Hardware Debugging & Bring-Up: Digital Oscilloscopes, Logic Analyzers, Multimeters, JTAG/SWD Debuggers, Signal Integrity Profiling
Systems & Build Infrastructure: Custom Debian/Ubuntu OS Customization, Linux SysAdmin, Bash Scripting, GCC 13 Toolchains, CMake, Ninja, Git/GitHub

Timeline