As a Senior Firmware Engineer , you will be responsible for the embedded firmware architecture, design, unit-level, and system testing of new solid-state components and systems. The candidate must be self-motivated and comfortable navigating uncertainties and customer-driven design requirements. The role requires an understanding of the protection legacy that Littelfuse has established and the ability to collaborate across the business to draw upon that strength. Join the team at Littelfuse that is developing new, self-contained smart components and systems that deliver protection and control functionality to electrical systems.
About The Job
- Develop and qualify embedded designs as part of a safety-critical component or system.
- Establish and execute unit-level and system level tests and work with QA engineers to develop automated, robust test suites.
- Establish a safety-critical software process that meets the requirements of UL 1988, IEC 60730, IEC 61508, and ISO 26262.
- Develop DFMEA for safety-critical components and systems.
- Engage with contract manufacturers or in-house manufacturing to implement design, prepare design documentation, and evaluate production processes to assure components meet performance, reliability and cost targets.
- Support occasional travel as required to evaluate suppliers and support production ramp-up.
- Develop and execute protection system components and system qualification and reliability test plans.
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Provide regular project updates as part of the overall project planning and execution.
- MS in Electrical Engineering, Computer Science or BS in Electrical Engineering, Computer Science with equivalent experience.
- 10+ years of hands-on experience designing embedded firmware for 32-bit/64-bit ARM architectures, including experience with bare-metal and RTOS based developments (Free RTOS, Zephyr).
- Experience with communication protocols (SPI, I2C, UART, Modbus, CAN, Ethernet).
- Working knowledge of cryptography, algorithms and encryption for embedded devices.
- Hands-on experience with hardware bring-up, debugging tools (JTAG, oscilloscopes, logic analyzers).
- Experience developing firmware for safety-critical, applications, including the ability to support product compliance testing.
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Demonstrate an entrepreneurial spirit, willingness to experiment and be able to manage ambiguity.
Our Core Values – Respect, Customer Focus, Agility, Collaboration – support us in our mission to improve the safety, reliability, and performance of our customers’ products that use electrical energy.
We are an equal-opportunity employer that takes pride in giving every associate the means and courage to make a difference – everywhere, every day.
Senior Embedded Software Engineer
@ Embedd 
What we're looking for
At embedd.it, we power hardware-software integration in embedded devices. We turn fragmented semiconductor chip data into configurable digital twins, then deterministically generate code, tests, and documentation – making integration faster, cheaper, and resilient to supply chain shocks.
We’re looking for a true legend – someone with abstract thinking and deep expertise in low-level software development. You’ll build vendor-agnostic tooling for MCU and peripheral integration to solve hardware-software integration once and for all. We work at the intersection of embedded systems, code generation, compilers, and machine learning. It’s your chance to help redefine how low-level development is done.
Responsibilities
- Drive the architecture of the driver structures and system layout
- Define scalable patterns for cross-architectural integration across bare-metal, Zephyr, Linux, and other environments
- Deconstruct complex SoC device trees and translate hardware descriptions into structured internal models for automated reasoning
- Partner with the ML team to shape data and annotation models for AI-driven data-extraction tooling
Qualifications
- 5+ years of experience in embedded systems development, including bare-metal and RTOS-based systems
- Proficiency in C/C++
- Familiarity with firmware configuration, SoC bring-up, and system-level debugging
- Hands-on experience with code generation tools, or low-level compiler/decompiler/emulator technologies
- Strong background in embedded toolchains: compilers, linkers, debuggers, and build systems
- Python or scripting for automation and tooling is a plus
- Experience with functional-safety standards is a plus
Why embedd.it?
- Dynamic, venture-backed team of engineers challenging the status quo 🚀
- Work at the intersection of embedded systems, code generators, compilers, and ML 🤖
- Unusual challenges requiring out-of-the-box abstract thinking 🧠
- Competitive compensation: cash + equity 💰
- Remote work possible 🌍
About Us
embedd.it is a UK-based startup reinventing embedded development. Our platform transforms unstructured semiconductor data into structured digital twins, enabling automatic generation of drivers, tests, and documentation. We're building a single, traceable source of truth to make integration fast, vendor-agnostic, and future-proof.
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