Sr. Software Engineer – Firmware

Unidel Group; Pune District; On-site; INR 800,000 - 1,500,000; Full time

Job summary

A leading technology solutions firm is seeking a Senior Software Engineer to develop embedded firmware for smart lighting products. This role requires strong expertise in lighting protocols like Zigbee and Wi-Fi, along with 3-7 years of embedded firmware development experience. The ideal candidate will work collaboratively with cross-functional teams to optimize IoT-based lighting solutions. This position offers an opportunity to contribute to innovative projects in a dynamic environment located in Pune, Maharashtra.

Qualifications

• 3-7 years of embedded firmware development experience with focus on IoT and lighting applications.
• Strong expertise in C/C++ for real-time embedded systems.
• Hands-on experience with lighting communication protocols and embedded systems.

Responsibilities

• Development of embedded firmware for smart lighting products using various protocols.
• Integrate and customize lighting control stacks.
• Ensure interoperability with lighting ecosystems.
• Debug and optimize lighting communication stacks.

Skills

C/C++ for real-time embedded systems

Zigbee

BLE Mesh

Wi-Fi

Z-Wave

DALI

DMX512

PWM dimming

Problem-solving skills

Education

Bachelor’s/Master’s in Electronics, Communication, or Embedded Systems Engineering

Tools

JTAG

Logic Analyzer

Oscilloscope

Ubiqua

Wireshark

Job description

• Designation - Senior Software Engineer
• Qualification - BE in IT/E&TC/ Computers or equivalent
• Location - Pune
• Experience - 4 - 7 Years

Required Technical Expertise

• We are seeking a highly skilled Senior Embedded Firmware Engineer with proven experience in developing firmware for smart lighting solutions. The role demands strong expertise in lighting protocols and wireless connectivity (Zigbee, BLE, Wi-Fi, Z-Wave, DALI, DMX, 0–10V) to design, optimize, and deliver advanced IoT-based lighting control systems. The ideal candidate will bring a blend of embedded firmware expertise, lighting domain knowledge, and hands-on protocol integration experience to build scalable and reliable connected lighting products.

Key Responsibilities

• Development of embedded firmware for smart lighting products using Zigbee, BLE, Wi-Fi, Z-Wave, and traditional lighting protocols (DALI, DMX512, 0–10V).
• Integrate and customize lighting control stacks (Zigbee ZCL – Lighting Clusters, BLE Mesh Lighting Models, Z-Wave Lighting Command Classes).
• Ensure interoperability with lighting ecosystems (Zigbee Home Automation, Matter, BLE Mesh Lighting, Smart Energy, etc.).
• Debug, troubleshoot, and optimize lighting communication stacks, wireless performance, and real-time responsiveness.
• Collaborate with hardware, software, mechanical, and QA teams for complete lighting product lifecycle development.
• Optimize firmware for low-power lighting devices (sensors, switches, luminaires).
• Conduct protocol performance analysis, network scalability testing, and lighting scene management optimization.
• Create technical documentation
• Experienced in implementing secure development methodologies, ensuring robust protection of sensitive data and systems integrity.

Required Skills & Qualifications

• Bachelor’s/Master’s in Electronics, Communication, or Embedded Systems Engineering.
• 3-7 years of embedded firmware development experience with focus on IoT and lighting applications.
• Strong expertise in C/C++ for real-time embedded systems.
• Hands-on experience with Zigbee (ZCL Lighting Clusters, ZHA, ZSE), BLE Mesh (Lighting Models), Wi-Fi, Z-Wave (Lighting Command Classes).
• Practical knowledge of lighting control protocols: DALI, DMX512, 0–10V, PWM dimming.
• Experience in RTOS-based systems and low-power design for lighting nodes.
• Familiarity with debugging tools (JTAG, Logic Analyzer, Oscilloscope) and protocol analyzers (Ubiqua, Wireshark).
• Strong problem-solving, debugging, and optimization skills.

Preferred Skills

• Experience with MCUs used in lighting applications: Silabs (EFR32), Nordic, TI, STM32.
• Exposure to Matter (CHIP) and its Lighting Device Types.
• Knowledge of smart lighting ecosystems (Philips Hue, Leviton, Lutron, etc.).
• Experience developing dimmable, tunable-white, or RGB/RGBW lighting solutions.
• Familiarity with safety, compliance, and certification processes for lighting products.