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Principal Software Engineer - SDN Networking

Crusoe is building the World’s Favorite AI-first Cloud infrastructure company. We’re pioneering vertically integrated,  purpose-built AI infrastructure solutions trusted by Fortune 500 companies to power their most advanced AI applications. Crusoe is redefining AI cloud infrastructure, with a mission to align the future of computing with the future of the climate. Our AI platform is recognized as the "gold standard" for reliability and performance. Our data centers are optimized for AI workloads and are powered by clean, renewable energy.

Be part of the AI revolution with sustainable technology at Crusoe. Here, you'll drive meaningful innovation, make a tangible impact, and join a team that’s setting the pace for responsible, transformative cloud infrastructure.

About the Role:

As a Principal Software Engineer - Software Defined Networking, you will lead the development and execution of our Software Defined Networking strategy. You will work extensively with the Linux Kernel, utilizing technologies such as XDP/EBPF, DPDK, SmartNIC, and DPU/IPU to drive innovation and performance improvements.

A Day In The Life:

  • Develop and execute the roadmap for the Software Defined Networking strategy at Crusoe Cloud.

  • Be highly hands-on, guiding the engineering team through architecture decisions, design processes, design reviews, code reviews, and implementation tasks.

  • Collaborate with the network infrastructure organization to develop industry-leading networking infrastructure.

  • Lead Linux Kernel and driver development, system architecture design, production support, and cross-functional collaboration.

You Will Thrive In This Role If You Have:

  • 10+ years of related experience building and operating at scale in a production environment.

  • Proven experience in system programming with C, C++ and/or Rust.

  • Extensive knowledge of Linux Systems Internals and computer architecture.

  • Expertise in Network Programming and Packet Processing pipelines.

  • Hands-on experience with kernel bypass technologies such as XDP/EBPF, AF_XDP, and DPDK.

  • In-depth understanding of TCP/IP and network accelerators like Mellanox/Nvidia SmartNIC (ConnectX6/7), DPU Bluefield3, and Intel IPU.

  • Familiarity with SR-IOV, vDPA, and scalable functions.

  • Strong background in kernel or embedded development, particularly with the Linux kernel.

  • Experience with Open vSwitch, Openflow, and Open Virtual Networking.

  • Knowledge of professional software engineering practices and best practices for the full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations.

  • Demonstrated track record of contributions to the open source community (e.g., Open vSwitch/OVS, Open Virtual Networking/OVN, Multus, Cilium).

Preferred Qualifications:

  • Advanced degree in Computer Science, Engineering, or a related field.

  • Proven leadership experience in a technical role.

  • Strong analytical and problem-solving skills.

  • Excellent communication and collaboration skills.

  • Experience with cloud networking platforms (AWS, Azure, GCP) and virtualization technologies (VMware, KVM).

Benefits:

  • Hybrid work schedule

  • Industry competitive pay

  • Restricted Stock Units in a fast growing, well-funded technology company

  • Health insurance package options that include HDHP and PPO, vision, and dental for you and your dependents

  • Employer contributions to HSA accounts 

  • Paid Parental Leave 

  • Paid life insurance, short-term and long-term disability 

  • Teladoc 

  • 401(k) with a 100% match up to 4% of salary

  • Generous paid time off and holiday schedule

  • Cell phone reimbursement

  • Tuition reimbursement

  • Subscription to the Calm app

  • MetLife Legal

  • Company paid commuter benefit; $50 per pay period

Compensation Range

Compensation will be paid in the range of $270 - $320k. Restricted Stock Units are included in all offers. Compensation to be determined by the applicants knowledge, education, and abilities, as well as internal equity and alignment with market data.

Crusoe is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, disability, genetic information, pregnancy, citizenship, marital status, sex/gender, sexual preference/ orientation, gender identity, age, veteran status, national origin, or any other status protected by law or regulation.

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Average salary estimate

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$270000K
$320000K

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What You Should Know About Principal Software Engineer - SDN Networking, Crusoe

At Crusoe, we're redefining what it means to be an AI-first cloud infrastructure company right here in San Francisco! As our Principal Software Engineer - SDN Networking, you’ll play a pivotal role in shaping our Software Defined Networking strategy. Imagine leading a talented team as we dive deep into the Linux Kernel and leverage cutting-edge technologies like XDP/EBPF, DPDK, and SmartNICs. Your hands-on expertise will guide the architecture decisions and design processes that align our infrastructure with the best practices for performance and reliability. You'll have the chance to collaborate across teams to innovate networking solutions that not only work optimally but also align with our commitment to sustainability. If you have a passion for system programming with C, C++, or Rust, and you’re well-versed in network programming and packet processing pipelines, we want you on our team! With your extensive experience (we’re looking for 10+ years!), extensive knowledge of Linux systems internals, and a track record of open source contributions, you'll thrive in our fast-paced environment. At Crusoe, you won't just be coding; you'll be crafting the architecture that'll power the AI applications of tomorrow while championing a greener planet. Let's collaborate and be part of the ongoing AI revolution together!

Frequently Asked Questions (FAQs) for Principal Software Engineer - SDN Networking Role at Crusoe
What are the primary responsibilities of a Principal Software Engineer - SDN Networking at Crusoe?

As a Principal Software Engineer - SDN Networking at Crusoe, your primary responsibilities include developing and executing the SDN strategy, guiding the engineering team through architectural and design decisions, and collaborating closely with our network infrastructure organization to enhance our networking capabilities. You'll also be hands-on in Linux Kernel development and optimizing packet processing pipelines.

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What qualifications should a candidate have for the Principal Software Engineer - SDN Networking position at Crusoe?

Candidates for the Principal Software Engineer - SDN Networking role at Crusoe should have a minimum of 10 years of experience in software engineering, including advanced knowledge of system programming in languages like C, C++, or Rust. Familiarity with Linux systems internals, networking protocols, and experience with technologies such as DPDK and SmartNICs are essential to succeed in this role.

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What technologies should a Principal Software Engineer - SDN Networking at Crusoe be familiar with?

A Principal Software Engineer - SDN Networking at Crusoe should be proficient in technologies such as XDP/EBPF, DPDK, TCP/IP, and have hands-on experience with network accelerators like Mellanox/Nvidia SmartNICs. Additionally, familiarity with Open vSwitch, SR-IOV, and various cloud networking platforms like AWS, Azure, and GCP is highly beneficial.

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How does Crusoe support the professional development of a Principal Software Engineer - SDN Networking?

Crusoe is committed to supporting professional development for the Principal Software Engineer - SDN Networking role through various means, including tuition reimbursement, attendance at industry conferences, and access to resources that foster skill advancement and knowledge sharing. We encourage continuous learning as part of our culture.

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What is the work environment like for a Principal Software Engineer - SDN Networking at Crusoe?

The work environment for a Principal Software Engineer - SDN Networking at Crusoe is collaborative and innovative, set in San Francisco. With a hybrid work schedule, engineers enjoy the flexibility to work from home or in the office while engaging with fellow team members to drive meaningful project outcomes amidst a culture of support and shared vision.

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Common Interview Questions for Principal Software Engineer - SDN Networking
Can you describe your experience with Linux Kernel development?

In responding, focus on specific projects where you contributed to Linux Kernel development. Highlight your understanding of kernel internals, any contributions to open source projects, and how this experience will add value to Crusoe's SDN strategy.

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What strategies do you use for effective team collaboration?

Share examples of how you've fostered teamwork in previous roles, focusing on communication, using collaborative tools, and encouraging diverse viewpoints. Highlight how these strategies can enhance collaboration within the engineering teams at Crusoe.

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How do you ensure the performance and reliability of networking infrastructures?

Discuss methodologies you've implemented, such as performance benchmarks, testing protocols, and continuous monitoring. Explain how these practices align with the high standards Crusoe aims for in its AI-first cloud infrastructure.

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Explain your understanding of packet processing pipelines.

Provide an overview of packet processing, detailing your experience with DPDK, XDP/EBPF or similar technologies. Discuss real-world applications and how you've used these technologies to optimize network performance in previous roles.

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What is your approach to troubleshooting networking issues?

Discuss your systematic approach to identifying and resolving issues, including tools and techniques you utilize. Providing anecdotes of past troubleshooting scenarios will showcase your problem-solving skills.

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How do you keep updated on new technologies in SDN and networking?

Explain your commitment to ongoing learning through conferences, online courses, communities, or contributions to open source. Mention how this places you in front of emerging trends that would benefit your role at Crusoe.

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Can you describe a project where you led a team to success?

Use the STAR (Situation, Task, Action, Result) method to frame your answer. Be specific about your role, the challenges you faced, and the successful outcomes of the project, touching on leadership skills and technical direction.

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How would you approach designing a new networking feature?

Discuss your thought process starting from requirement gathering to architecture and design. Include how you would ensure scalability, reliability, and performance, which are critical at Crusoe.

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What is your experience with cloud networking platforms?

Highlight your experience with cloud providers like AWS, Azure, or GCP and how you've integrated networking solutions in these environments. Discuss how this can be strategic for Crusoe's cloud initiatives.

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What motivates you to work in the field of Software Defined Networking?

Share your passion for the field, mentioning its potential for innovation and impact. Relate this to Crusoe's mission of combining cutting-edge technology with sustainable practices to emphasize alignment with the company's values.

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We’re on a mission to align the future of computation with the future of the climate.

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Full-time, hybrid
DATE POSTED
January 4, 2025

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