Kernel Driver Engineer

Cornelis Networks is hiring talented Linux kernel and driver developers to work on our networking and High-Performance Computing (HPC) fabric SW stack. The main job will center on software development of device drivers and Linux kernel support for our network interconnects including Omni-Path Architecture. The job will require working closely with architects and hardware developers to develop and debug device driver and networking software.

Responsibilities:

• Engineers software systems for best performance.

• Compiles, packages, installs and upgrades software and operating system components.

• Creates scripts and uses tools to automates frequently performed tasks.

• Architects interfaces/solutions for communicating with hardware.

• Responsible for security requirements and design implications.

• Experience in RDMA and other techniques for minimizing buffer copies.

• Extensively unit tests their implementation.

• Analyze network protocols to troubleshoot networking problems and to recognize and develop network performance solutions.

• Works with the open source & kernel community to develop & review software.

Basic Qualifications:

• Bachelor's, Master's, or Ph.D. degree in Engineering, Computer Science, or related discipline, or the equivalent in training and experience.

• 7 years' experience (post college) with networking software in the Linux kernel and extensive experience in C coding and git.

• 5 years' experience (post college) writing Linux kernel software.

• Experience in one or more scripting language (TCL, Python, Perl, Shell-scripting)

• Experience with:

• InfiniBand or another HPC interconnect.

• Developing and supporting open-source device drivers and Linux networking kernel code.

• Upper-layer protocols such as IPoIB, SRP etc.

• Kernel file system software including Lustre, NFS.

• Ability to use protocol analyzers and debug challenging multi-threaded and/or asynchronous communications problems.

• Ability to read and understand Linux user and kernel level code. Proficient in performance profiling, tuning, and debugging of performance in kernel space.

• Familiar with:

• Advanced debugging techniques such as kprobes, tracepoints, and dynamic console debug

• kmemleak, KASAN, and other dynamic debug techniques

• kbuild and configuration language

• Dynamic configuration techniques with autotools, and cmake

• Understanding of network protocols, TCP/IP, scalable algorithms and virtualization. Software development tools and scripting in a linux environment, including git source control.

• Excellent communication skills.

Location

For this position, Cornelis Networks fully supports remote employees who live within the United States and are able to travel to our corporate offices in Chesterbrook, PA periodically for in-person collaboration.

Immigration Information

To qualify for this position, candidates must be located in the United States, legally authorized to work in the U.S. and must not need U.S. Visa sponsorship now or in the future.

EEOC Information

Cornelis Networks is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.

Cornelis Networks does not accept unsolicited resumes from headhunters, recruitment agencies, or fee-based recruitment services.