Principal SDET – Linux Kernel

Premier Global Links•Cambridge, MA

1d•Remote

About The Position

Premier Global Links LLC is seeking an experienced Principal Software Development Engineer in Test SDET to lead test strategy, automation, and system-level validation for a highly distributed, Linux-based AI and compute platform. This is a senior technical leadership opportunity for an engineer who enjoys working at the Linux kernel level, solving complex infrastructure problems, and building scalable automated testing and continuous integration systems. You will help define quality standards, develop advanced test frameworks, debug low-level system issues, and partner with engineering teams to improve the performance, reliability, and security of large-scale computing infrastructure.

Requirements

12+ years of relevant software engineering, software development, test engineering, or validation experience.
Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
Strong software development and validation experience using C++, particularly in Linux kernel or systems-level environments.
Strong programming and scripting skills using Python, Shell, and/or Perl.
Deep understanding of Linux kernel internals and system architecture.
Hands-on knowledge of KVM and virtualization, Virtio drivers, cgroups, memory management, file systems, block I/O, Ethernet/network drivers, and TCP/IP.
Experience with Linux kernel debugging tools and system-level performance analysis.
Strong experience with performance benchmarking and reliability testing.
Experience designing, developing, or supporting automated testing frameworks and CI/CD or continuous testing infrastructure.
Demonstrated ability to diagnose and resolve complex system-level software and infrastructure problems.
Strong technical communication and collaboration skills.
Ability to provide technical direction and mentor engineers in a distributed environment.
Ability to work independently and effectively in a remote, highly technical organization.

Responsibilities

Lead the overall testing strategy for a custom Linux kernel supporting AI and compute platforms.
Design, develop, and scale automated test frameworks for performance, reliability, and security.
Build comprehensive test suites for Linux kernel enhancements and support kernel and virtual machine infrastructure upgrades.
Develop and maintain continuous integration and automated testing infrastructure.
Perform Linux kernel debugging, system-level validation, performance testing, and benchmarking.
Troubleshoot complex low-level issues across test, development, and production-like environments.
Analyze failures and identify root causes across operating systems, virtualization, networking, storage, and hardware interfaces.
Partner with software, systems, infrastructure, and kernel engineering teams to establish and maintain quality standards.
Provide technical leadership, guidance, and mentorship to other engineers.
Help improve testing methodologies and infrastructure for highly distributed computing environments.