Senior Engineer - SW Design (RAIL)
Senior embedded software engineer on Silicon Labs' RAIL (Radio Abstraction Interface Layer) SDK team in Hyderabad, designing and maintaining low-level firmware — device drivers, radio control, timing-critical code — for low-power wireless MCUs in C/C++, and debugging across hardware/software boundaries from silicon bring-up through release.
- Compensation
- Not disclosed
- Location
- Hyderabad, India
- Work setup
- Onsite
- Seniority
- Senior
- Employment
- Not specified
- Experience
- 5+ years
- Category
- Design
- Posted
Skills
Must have
- BS or MS in Electrical Engineering, Computer Engineering, Computer Science, or related field (or equivalent practical experience)
- 5+ years of professional experience in embedded software or firmware development
- Strong programming skills in Embedded C and/or C++
- Experience developing software for microcontrollers in resource-constrained, real-time environments (bare metal and/or RTOS)
- Strong debugging skills at the hardware/software boundary using debuggers, JTAG/SWD, oscilloscopes, or logic analyzers
- Experience with low-level embedded software: device drivers, interrupts, peripheral interfaces, timing-sensitive code, or memory-constrained systems
- Experience taking features from design through implementation, test, and release
- Strong problem-solving, communication, and collaboration skills
Nice to have
- Experience with wireless/connectivity technologies such as Bluetooth LE, Zigbee, Thread, Wi-Fi, or proprietary radio systems
- Experience with communication stacks, radio control software, or PHY/MAC-related functionality
- Experience optimizing embedded systems for low power, performance, and reliability
- Experience with embedded interfaces and peripherals such as SPI, I2C, UART, DMA, timers, and interrupts
- Experience with Python or similar scripting for tooling, automation, testing, or build workflows
- Experience with automated test, CI, validation frameworks, or hardware-in-the-loop test environments
- Experience with silicon bring-up, hardware validation, or collaboration with chip/board design teams
- Experience with multi-core microcontrollers, concurrency, synchronization, or shared-resource challenges
- Familiarity with assembly on ARM, RISC-V, or similar MCU architectures
- Experience using AI-assisted development tools (GitHub Copilot, Cursor, ChatGPT) for prototyping, testing, debugging, and automation
Full description
Silicon Labs (NASDAQ: SLAB) is the leading innovator in low-power wireless connectivity, building embedded technology that connects devices and improves lives. Merging cutting-edge technology into the world’s most highly integrated SoCs, Silicon Labs provides device makers the solutions, support, and ecosystems needed to create advanced edge connectivity applications. Headquartered in Austin, Texas, Silicon Labs has operations in over 16 countries and is the trusted partner for innovative solutions in the smart home, industrial IoT, and smart cities markets. Learn more at .
The Role :
In this role, you will help develop foundational embedded software that enables customers to build reliable, power-efficient wireless products on Silicon Labs devices. You will work on software that supports both proprietary and standards-based wireless systems, contributing to technology used across a broad range of IoT applications.
This is a great opportunity for an experienced embedded engineer who enjoys working close to the hardware, solving complex technical problems, and owning software from concept through release. While experience in wireless systems is a plus, we are also excited to hear from candidates with strong embedded systems fundamentals who want to grow deeper in wireless applications.
Meet the Team :
The RAIL team develops the Radio Abstraction Interface Layer (RAIL) SDK, a common radio software platform that helps customers build wireless applications without needing to master device-specific radio details. Our work enables everything from low-power battery-operated devices to more complex multi-protocol systems.
As part of this team, you will collaborate closely with firmware, silicon, systems, and test engineers to deliver high-quality embedded software that helps customers build innovative connected products.
Responsibilities :
- As a Senior Embedded Software Engineer on the RAIL team, you will:
- Design, develop, and maintain embedded software for Silicon Labs low-power wireless MCUs and SDKs
- Own support for hardware features through the entire IC lifecycle (design, pre-silicon verification, post-silicon verification, release and long-term support)
- Build and enhance low-level firmware components such as device drivers, initialization and startup code, timing-sensitive system software, and radio control features
- Optimize software for performance, reliability, power efficiency, and memory/CPU utilization in real-time embedded environments
- Debug complex issues across software, firmware, hardware, and system boundaries using lab tools and debuggers
- Collaborate with hardware, silicon, systems, and product teams to define requirements, review designs, and support bring-up of new devices