Sr. Embedded Software Engineer

Lynx

3h•Remote

About The Position

This role is within our professional services division, offering opportunities to work on a diverse range of technologies including Lynx’s key products, customer-specific requirements, and open-source software. The successful candidate will serve as an embedded Linux expert within the customer engineering team, enabling customers with their embedded software development. Responsibilities include designing, developing, and refactoring real-time software architectures and modular components, reproducing, isolating, and debugging complex low-level hardware/software interface issues, and collaborating with customers and internal teams to enhance project experience and product design throughout the product lifecycle. The role also involves ensuring project deadlines are met, proactively communicating risks and issues, maintaining high deliverable quality, and developing technical proposals to aid customer decision-making. Additional job duties may be assigned.

Requirements

3-5+ years of experience building and shipping embedded systems using Linux.
Proficiency in Linux kernel customization, device driver design and development and at least one or more build environments such as Yocto, Buildroot, or Open Embedded.
Experience with performance optimization and advanced troubleshooting at kernel-level.
Experience with memory managed high performance ARM Cortex-A or X86 architectures and SoCs (NXP, Freescale, Intel, AMD, Xilinx, Altera, …).
Experience with the Linux kernel itself or the kernel of any other operating system with strictly isolated kernel and user spaces.
Proven success with root-cause investigation of bugs related to operating systems, hypervisors, or hardware-level drivers.
Proficiency in the C programming language
Proficiency with Git at a command line level
Ability to track and work on multiple projects simultaneously while meeting schedules.
Demonstrated experience of leading software projects while providing technical inputs to unblock supporting teams.
Keen sense of urgency and drive for results.
Ability to work independently with minimal oversight.
Over and above, a deep commitment to your own quality work and a strong desire to help the entire team to succeed.
Must be a US citizen or US person.
Applicant must have proven, extensive depth of knowledge in one or more of the following categories: New Linux kernel driver development.
Must be able to read electrical schematics well enough to understand pin configuration procedures and digital logic levels.
Must be able to read integrated circuit data sheets and understand register configuration procedures.
Must understand interrupts and how to appropriately use them to our advantage
Must understand when and how to appropriately use DMA to our advantage
Operating System core kernel development experience
Must have experience with scheduling and timing-related mechanisms and issues in any of the OS kernels as described above
Must have extensive understanding with context switching, preemption, interrupts, timers, and locking mechanisms.
Must have knowledge of Unix-style file-system data structures (inodes, …)
Must have knowledge of page tables and memory management.
Must have cursory knowledge of assembly level bootstrapping in either ARM or X86 instruction sets.

Nice To Haves

Experience working with open source communities to fix bugs and/or add features is a plus.
Experience migrating drivers from one version of the Linux kernel to another is a plus.
Scripting and automation experience with Python, bash or similar languages is a strong plus.
Experience with real-time operating systems is a strong plus.
Experience with optimizing system performance using tools such as profilers and tracers is a plus.
Hypervisor, virtualized device and/or security monitoring experience.

Responsibilities

Be an embedded Linux expert (kernel, CPU-architecture, security, general device-drivers, and performance optimization) in the customer engineering team and enable customers in doing their embedded SW development.
Design, develop, and refactor real-time software architectures and modular software components.
Reproduce, isolate and debug complex low-level problems that may span interfaces between hardware and software.
Collaborate with the customer and internal teams to always enhance the overall project experience.
Contribute to the overall product design to help customers through various aspects of their product lifecycle.
Working closely with the team to ensure the project deadlines are met and risks/issues are proactively identified and communicated to the customer.
Ensure high quality of our deliverables.
Developing technical proposals to help customers make technical decisions.
Perform additional job duties as assigned.