Lead Software Engineer – Wireless

Softdel; Pune District; On-site; INR 4,200,000 - 6,400,000; Full time

Job summary

Softdel is seeking an experienced Lead Embedded Firmware Engineer with deep expertise in smart lighting systems and wireless protocols. You will own the firmware architecture across Zigbee, BLE Mesh, Wi‑Fi, Z‑Wave, LoRaWAN, and Thread, coordinating multi‑protocol implementations for indoor and outdoor lighting deployments.

You will lead a team of engineers, drive architecture decisions, and collaborate with hardware, cloud, and QA teams to deliver secure, scalable lighting solutions.

Qualifications

• Strong C/C++ embedded programming.
• Experience with RTOS and Linux.
• Hands-on with Zigbee.
• Hands-on with BLE Mesh.
• Hands-on with Wi-Fi.
• Hands-on with LoRaWAN.
• Experience in firmware architecture/design.
• Experience leading or mentoring engineers.

Responsibilities

• Define and own firmware architecture for smart lighting systems.
• Lead development across Zigbee, BLE Mesh, Wi‑Fi, Z‑Wave, LoRaWAN, Thread (Matter), DALI, DMX512 and 0‑10V.
• Own full firmware lifecycle from architecture to release.
• Collaborate with hardware, cloud, mobile, and QA teams.
• Implement lighting features: PWM dimming, RGB/RGBW, tunable white, scene control.
• Optimize for low power, real-time performance, and network efficiency.
• Ensure secure communications and compliance across protocols.

Skills

C/C++ embedded

RTOS

Linux

Zigbee

BLE Mesh

Wi-Fi

LoRaWAN

DALI/DMX/0-10V PWM

Firmware architecture

Mentoring/leadership

JTAG/oscilloscope

Education

B.Tech

Tools

JTAG

Logic analyzer

Oscilloscope

Job description

Designation: Lead Embedded Firmware Engineer - Wireless Protocols & Lighting Domain

Skills: Embedded C/C++, Zigbee, BLE Mesh, Wi-Fi, TCP/IP, MQTT

Qualification: B.Tech

Location: Pune

Experience: 8+ Years

Role overview

We are seeking an experienced Lead Embedded Firmware Engineer with deep expertise in smart lighting systems, embedded architecture, and a broad range of wireless communication technologies. This role requires strong leadership in designing and delivering connected lighting solutions across multiple wireless technologies, including short-range (Zigbee, BLE Mesh), IP-based (Wi-Fi), sub-GHz (Z-Wave), and LPWAN (LoRaWAN).

Technical Leadership & Architecture

• Define and own firmware architecture for smart lighting systems.
• Lead development using Zigbee, BLE Mesh, Wi-Fi, Z-Wave, LoRaWAN, Thread (Matter), DALI, DMX512, and 0-10V.
• Architect multi-protocol and hybrid connectivity solutions (Mesh + Wi-Fi + LPWAN) for scalable deployments (indoor + outdoor lighting).

Protocol & Connectivity

• Design, integrate, and optimize Zigbee (ZCL Lighting Clusters, ZHA, Smart Energy).
• Design, integrate, and optimize BLE Mesh (Lighting Models).
• Design, integrate, and optimize Wi-Fi (TCP/IP stack, MQTT/HTTP integration).
• Design, integrate, and optimize Z-Wave (Lighting Command Classes).
• Design, integrate, and optimize Thread (for Matter-based devices).
• Design, integrate, and optimize LoRaWAN (Class A/B/C, ADR, payload optimization).
• Ensure interoperability with ecosystems such as Matter, Zigbee HA, BLE Mesh, and cloud-connected Wi-Fi platforms.

Development & Delivery

• Own full firmware lifecycle: architecture -> development -> validation -> release.
• Collaborate with hardware, cloud, mobile, and QA teams.
• Implement lighting features: PWM dimming, RGB/RGBW, tunable white, scene control across multiple connectivity layers.

Optimization & Performance

• Optimize for low power, real-time responsiveness, and network efficiency.
• Balance trade-offs between mesh networks (Zigbee/BLE), direct IP (Wi-Fi), and long-range (LoRaWAN/Sub-GHz) connectivity.

Security & Compliance

• Implement secure communication across all protocols.
• Implement Wi-Fi security using TLS and certificates.
• Implement LoRaWAN security using AES-128 and OTAA.
• Implement Zigbee/BLE security.
• Ensure compliance with wireless and lighting standards.

Must Have

• Strong C/C++ embedded programming.
• Experience with RTOS and Linux.
• Hands-on experience with Zigbee.
• Hands-on experience with BLE Mesh.
• Hands-on experience with Wi-Fi (TCP/IP, MQTT/HTTP).
• Hands-on experience with LoRaWAN.
• Experience with lighting protocols (DALI, DMX, 0-10V, PWM).
• Strong debugging skills using JTAG, logic analyzer, and oscilloscope.
• Experience in firmware architecture/design.
• Experience leading or mentoring engineers.

Good to Have

• Thread / Matter experience.
• Exposure to ecosystems like Philips Hue, Leviton, and Lutron.
• Experience with MCUs such as Silabs, Nordic, STM32, TI, and Semtech.
• Cloud/IoT experience with MQTT, AWS IoT, and Azure IoT.
• OTA firmware update experience.
• Experience with LoRaWAN networks such as ChirpStack and TTN.
• Certification knowledge (Zigbee, BLE, Wi-Fi, LoRa).
• Experience in smart lighting or smart city deployments.