Embedded Firmware Engineer

Tekskills; Hyderabad; On-site; INR 1,200,000 - 2,100,000; Full time

Job summary

Tekskills seeks an experienced embedded firmware engineer with 5+ years in C/C++, RTOS, and MCU platforms. You will drive end-to-end firmware development for IoT and industrial applications, including low-power optimization, secure boot, OTA, and hardware-software integration.

Expertise in STM32/ESP32, CAN/LIN/MQTT, and driver development is essential, along with strong debugging and CI/CD experience. Immediate joiners preferred for a fast-paced project environment.

Qualifications

• 5+ years of embedded firmware development experience.
• Proven IoT, industrial automation, energy, or telecom domain exposure.
• Proficiency in RTOS-based design and drivers.
• Strong debugging, profiling, and validation skills.

Skills

C / Embedded C

Python scripting

RTOS design

CAN

LIN

Modbus

MQTT

BLE/WiFi

I2C / SPI / UART

STM32 / ESP32

Device drivers

Security & encryption

JTAG / SWD

Git / CI/CD

MISRA-C / IEC 61508

Low-power optimization

Mentoring / code reviews

Tools

Jenkins

Makefile

CMake

BusMaster

PCAN

Job description

Job Summary

Experience: 5+ Years

Immediate Joiners

Skills & Tools

• Programming Languages: Expert in C, Embedded C, with working knowledge of Python for scripting, automation, and test harness development.
• Firmware Architecture: Strong experience in RTOS-based design (FreeRTOS, ThreadX, Zephyr, or similar), real-time scheduling, interrupt handling, and inter-task communication.
• Protocols & Communication Interfaces: Proficient in CAN, LIN, Modbus, MQTT, BLE, WiFi, I2C, SPI, UART, RS-485, and Ethernet.
• MCUs & Platforms: Deep knowledge of STM32 (F7, L4 series), TI Hercules, NXP, ESP32, Renesas, and similar microcontrollers.
• Device Drivers & Middleware: Development of low-level drivers for sensors, motor drivers, and peripherals with proven debugging and optimization expertise.
• Security & Reliability: Experience implementing secure bootloaders, OTA updates, encryption (AES, RSA, ECC), watchdogs, and fail-safe mechanisms.
• Debugging & Validation Tools: Proficiency with JTAG/SWD, oscilloscopes, logic analyzers, BusMaster, PCAN, and protocol analyzers.
• Version Control & Build Tools: Strong experience with Git, Makefile, CMake, Jenkins, and CI/CD pipelines for firmware release cycles.
• Compliance & Standards: Knowledge of MISRA-C, IEC 61508, and structured code reviews.
• Optimization Expertise: Skilled in low-power design, memory optimization, and real-time performance tuning for mission-critical applications.
• Experience 5+ years of proven industry experience in embedded firmware development, preferably in IoT, industrial automation, energy, or telecom domains.
• Hands-on expertise in end-to-end firmware lifecycle architecture, design, coding, debugging, validation, and deployment.
• Strong track record of delivering production-grade embedded/IoT products with large-scale field deployments.
• Experience in mentoring junior engineers, reviewing code, and contributing to technical strategy.
• Exposure to global clients/projects and working in multi-disciplinary teams (hardware, firmware, cloud, mobile app integration).
• Familiarity with startup culture and fast-paced R&D environments will be an added advantage.