Linux Kernel Developer (Mid-to-Senior Level)

Linux Kernel DeveloperReady to make connectivity from space universally accessible, secure and actionable? Then you've come to the right place!E-Space is bridging Earth and space to enable hyper-scaled deployments of Internet of Things (IoT) solutions and services. We are building a highly-advanced low Earth orbit (LEO) space system that will fundamentally change the design, economics, manufacturing and service delivery associated with traditional satellite and terrestrial IoT systems.We're intentional, we're unapologetically curious and we're 100% committed to innovate space-based communications and deliver actionable intelligence that will expand global economies, protect space and our planet and enhance our overall quality of life.We're a successful, fast-growing startup building complex systems that run on custom Linux platforms in demanding, real-world environments. We're looking for a Linux Kernel Developer who's comfortable working deep in the stack — from drivers and subsystems to boot and memory management — and who wants to own kernel-level quality as our products scale.In this role, you'll design, develop, and debug kernel code and low-level Linux components that power our hardware platforms. You'll work closely with embedded software engineers, systems engineers, and hardware teams to ensure our platforms are stable, performant, and production-ready.This is a hands-on role suited for someone who enjoys solving hard problems close to the metal in a lean engineering organization.What you will do:Design, develop, and maintain Linux kernel code, including drivers, subsystems, and kernel modulesPort, configure, and optimize the Linux kernel for custom hardware platformsWrite and maintain device drivers for a range of interfaces (e.g., I2C, SPI, UART, USB, PCIe, Ethernet)Debug and resolve kernel panics, race conditions, memory issues, and other low-level system failuresProfile and optimize kernel and driver performance, including boot time, latency, and power consumptionWork with bootloaders (e.g., U-Boot) and board bring-up for new hardware revisionsCollaborate with hardware engineers during board bring-up and hardware/software integrationUpstream patches where appropriate, and track relevant upstream kernel changes and CVEsContribute to kernel configuration, build systems (e.g., Yocto, Buildroot), and CI integrationDocument kernel architecture decisions, driver interfaces, and debugging procedures in a way that's practical and reusableWhat you bring to this role:5+ years of experience developing in C, with deep familiarity with Linux kernel internalsProven experience writing and debugging Linux device drivers and kernel modulesSolid understanding of: kernel subsystems (memory management, scheduling, filesystems, networking), Linux boot process and bootloaders, concurrency, locking, and interrupt handling in kernel spaceExperience with embedded Linux build systems (Yocto, Buildroot, or similar)Comfort working directly with hardware during bring-up, debugging with tools like JTAG, oscilloscopes, or logic analyzersStrong debugging skills using tools such as gdb, ftrace, perf, kgdb, or crash dump analysisComfort working independently and taking ownership in a lean startup environmentBonus points for the following:Upstream Linux kernel contribution experienceExperience with real-time Linux (PREEMPT_RT) or other real-time operating systemsFamiliarity with security-hardening practices for embedded Linux (secure boot, kernel hardening)Experience with version control systems (Git) and kernel patch workflows (mailing lists, git send-email)Exposure to multiple CPU architectures (ARM, RISC-V, x86)Experience with CI/CD pipelines for embedded or system-level softwareAdditional RequirementsThis is a fast-paced, high-impact environment - flexibility to occasionally work extended hours or weekends during critical periods is expected.$150,000 - $225,000 a yearThis is a full time, exempt position, based out of our Saratoga office. The total compensation packaged will be determined by various factors such as your relevant job-related knowledge, skills, and experience.E-Space is not currently able to provide employment sponsorship for candidates who do not hold work authorization for the location of this role.Why E-Space is right for you:As a member of our team, you will play a crucial role in driving our success. Our team members have a strong sense of dedication and responsibility; this includes a strong commitment to our mission to create an entirely new suite of global capabilities to improve lives, business efficiencies and build a smarter planet. This means that there will be times when extra hours, including nights and weekends, may be needed to meet critical deadlines and mission goals. In return, we offer a dynamic work environment with opportunities for professional growth and development and the chance to make a meaningful impact in a high-growth industry.We want you to make the most of your journey at E-Space. That's why we support and invest in the physical, emotional and financial well-being of our team members and their families. Some of what you can expect when working at E-Space:An opportunity to really make a differenceSustainability at our coreFair and honest workplaceInnovative thinking is encouragedCompetitive salariesContinuous learning and developmentHealth and wellness care optionsFinancial solutions for the futureOptional legal services (US only)Paid holidaysPaid time off