Sr. Software Engineer – Firmware Wireless

Softdel; Pune District; On-site; INR 1,400,000 - 2,200,000; Full time

Job summary

Softdel is seeking a Senior Embedded Firmware Engineer in Pune to design and deliver firmware for smart lighting solutions with wireless protocols. You will implement Zigbee, BLE, Wi‑Fi, and Z‑Wave stacks, optimize for low power, and ensure inter‑operability with Matter and related ecosystems.

The ideal candidate has 4–7 years of experience in IoT lighting, strong C/C++ skills, and hands‑on protocol integration.

Qualifications

• 4-7 years of embedded firmware development experience with 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).
• Knowledge of DALI, DMX512, 0–10V and PWM dimming.
• Experience with RTOS-based systems and low-power design for lighting nodes.
• Familiarity with debugging tools and protocol analyzers.

Responsibilities

• Development of embedded firmware for smart lighting products using Zigbee, BLE, Wi-Fi, Z-Wave, and traditional lighting protocols.
• 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).
• 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.

Skills

Embedded C/C++

Zigbee

BLE

Wi-Fi

Z-Wave

DALI

DMX512

MCUs in lighting apps

Matter exposure

Smart lighting ecosystems

Dimmable lighting

Safety & compliance

Education

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

Tools

JTAG

Logic Analyzer

Oscilloscope

Ubiqua

Wireshark

Job description

Designation: Senior Embedded Firmware Engineer – Wireless Protocols & Lighting Domain

Skills: Embedded C/C++, Zigbee, BLE, Wi-Fi, Z-Wave, DALI, DMX512

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

Location: Pune

Experience: 4 - 7 Years

Role overview

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.
• 4-7 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.