RTOS Developer (FreeRTOS / Zephyr) Jobs in Chennai Embedded Systems and Firmware Company
⚡ Hiring Now🏫 Chennai Embedded Systems Company Employment Zones
Chennai's private embedded systems companies design firmware, IoT solutions, and hardware-embedded software for automotive, industrial, and consumer electronics clients in Guindy and Ambattur MIDC, employing Tamil-speaking embedded engineers, RTOS developers, and PCB designers.
Embedded Systems Company employment zones in Chennai include Guindy, Ambattur MIDC, Sholinganallur, Anna Nagar, Nungambakkam, T. Nagar, Adyar, Velachery, Taramani, and Perungudi.
📋 Job Description
Jobzi is sourcing qualified candidates for RTOS Developer (FreeRTOS / Zephyr) positions in Chennai's private Embedded Systems and Firmware Company sector. This is a full-time opportunity with a reputed Embedded Systems and VLSI employer in Chennai offering competitive salary, structured growth, and a professional work environment. Tamil communication skills are preferred alongside English for professional and business interaction in Chennai.
📌 Key Responsibilities
- Design multi-task firmware architectures using FreeRTOS or Zephyr RTOS
- Configure task priorities, stack sizes, and scheduling policies for real-time requirements
- Implement synchronisation primitives - mutexes, semaphores, event groups, and queues
- Diagnose and resolve task starvation, priority inversion, and deadlock issues
- Implement low-power tickless idle modes for battery-powered IoT devices
- Write and validate Zephyr device tree overlays for custom hardware configurations
- Profile CPU utilisation and stack usage with trace tools such as Tracealyzer or Segger SystemView
🎓 Qualifications and Requirements
- How do you detect and prevent priority inversion in FreeRTOS?
- What is the difference between a binary semaphore and a mutex in FreeRTOS?
- How do you configure a Zephyr device tree overlay for a custom I2C sensor?
- Describe your strategy for sizing task stacks to avoid overflow without over-allocating.
- How does tickless idle mode work in FreeRTOS and when would you use it?
- Have you used Segger SystemView or Tracealyzer for RTOS task profiling?
- How do you share data safely between an ISR and a FreeRTOS task?
- Good Tamil and English communication skills for team coordination and client interaction in Chennai.
✅ Required Skills
🏆 Certifications and Qualifications
B.E./B.Tech. ECE or EEE for hardware and embedded engineer roles; B.E. CSE/ECE with embedded C/C++ for firmware roles; Arm Cortex-M programming certification; AUTOSAR and ISO 26262 (Functional Safety) training for automotive embedded roles; IEC 62443 for industrial IoT security; Xilinx/Intel FPGA certification for FPGA roles; VLSI design certification (Cadence, Synopsys) for chip design roles; CAN, LIN, UART, SPI, I2C protocol knowledge; FreeRTOS or Zephyr RTOS experience
Frequently Asked Questions
What types of embedded systems jobs are available in Chennai's private sector?
Chennai's private embedded systems sector offers roles spanning the full product development stack - from firmware engineers writing bare-metal C for microcontrollers, to RTOS developers, Linux device driver engineers, IoT connectivity specialists, automotive AUTOSAR developers, PCB hardware designers, FPGA engineers, and VLSI RTL and verification engineers. Both product companies and engineering services firms hire across these disciplines consistently throughout the year.
Which areas in Chennai have the highest concentration of embedded systems and firmware companies?
The OMR corridor, particularly Sholinganallur, Perungudi, and Taramani, has the densest cluster of embedded systems and semiconductor firms. Guindy and Ambattur house older electronics manufacturing and embedded services companies. Sriperumbudur and the SIPCOT IT Park on the Chennai outskirts host automotive Tier 1 suppliers and hardware product companies, making these zones the most active for embedded engineering hiring.
What skills improve salary and career growth for embedded engineers in Chennai?
Engineers who combine low-level embedded C or C++ with RTOS expertise (FreeRTOS or Zephyr) command higher salaries. Automotive-specific skills such as AUTOSAR, CAN/LIN protocols, and ISO 26262 functional safety knowledge attract a salary premium in Chennai. For hardware roles, proficiency in Altium Designer, signal integrity analysis, and DFM practices helps. VLSI engineers with UVM-based verification or physical design in Cadence tools see strong demand from semiconductor design centres.
What is the difference between FreeRTOS and Zephyr RTOS, and which do Chennai companies prefer?
FreeRTOS is a lightweight, portable RTOS kernel widely used for simple to mid-complexity microcontroller projects, especially on STM32 and ESP32 platforms. Zephyr is a full-featured RTOS with a Linux-like build system, device tree hardware description, and an extensive driver ecosystem, preferred for complex IoT and connectivity products. Chennai's automotive embedded companies often use FreeRTOS on Renesas and NXP platforms, while IoT product companies increasingly adopt Zephyr for Nordic nRF or NXP i.MX RT targets.
What does an RTOS Developer do day-to-day in a Chennai embedded company?
An RTOS Developer designs the task architecture of a firmware system - deciding which operations run as RTOS tasks, defining inter-task communication via queues and semaphores, setting priority levels, and ensuring timing deadlines are met. They debug real-time issues using logic analysers and RTOS trace tools, implement low-power sleep modes, write bootloader handoff sequences, and maintain integration with peripheral drivers written by other team members.
What salary can an RTOS Developer expect in Chennai?
An RTOS Developer with 2 to 4 years of experience in Chennai typically earns between Rs.40,000 and Rs.65,000 per month. Developers with both FreeRTOS and Zephyr expertise, combined with knowledge of BLE or Wi-Fi connectivity stacks, tend to attract the higher end of this range. Automotive RTOS roles using AUTOSAR OS or OSEK may offer additional premiums due to domain-specific experience requirements.
What is the salary for RTOS Developer (FreeRTOS / Zephyr) in Chennai Embedded Systems and Firmware Company in
A RTOS Developer (FreeRTOS / Zephyr) in Chennai earns between Rs.34,500 and Rs.80,500 per month in July 2026, depending on experience, skills, and employer.
What experience is required for RTOS Developer (FreeRTOS / Zephyr) jobs in
1 - 5 Years of relevant experience is typically required for RTOS Developer (FreeRTOS / Zephyr) positions in Chennai's private Embedded Systems and Firmware Company sector.
வேலை விவரம் - தமிழில்
Chennai-ல் RTOS Developer (FreeRTOS / Zephyr) வேலைவாய்ப்பு. மாத சம்பளம் ரூ.34,500 முதல் ரூ.80,500 வரை. 1 - 5 Years અனுபவம் தேவை. Embedded Systems and Firmware Company-ல் Full Time பணி. ஆர்வமுள்ளவர்கள் Jobzi மூலம் விண்ணப்பிக்கலாம்.