Senior Software Engineer - Kernel/Virtualization

1 Month ago • 8-8 Years • Software Development & Engineering • $255,000 PA - $405,000 PA

Job Summary

Job Description

Lambda is seeking a Senior Software Engineer specializing in Kernel/Virtualization to join their team. This role involves building and scaling cloud offerings, including the Lambda website, cloud APIs, and internal tooling. Responsibilities include developing core cloud features like Virtualization, SDN, Storage, and VPCs for AI/ML model training across thousands of GPUs. The ideal candidate will have strong experience with Linux kernel internals, cloud internals, and architecting large-scale distributed systems. A solid background in C programming is essential, with Rust, Python, and Go being desirable.
Must have:
  • 8+ years developing Linux production systems
  • Strong understanding of Linux kernel internals (e.g. Memory Management, Process Scheduling, I/O Scheduling, Socket Buffers, Virtualization/KVM, Live Migration, eBPF, perf)
  • 8+ years developing core public cloud internals (e.g. Kernel, Device Drivers, Virtualization, KVM, QEMU, Software Defined Networking, Security, Fleet Health and Performance Monitoring)
  • Ability to architect resilient, large-scale, distributed systems
  • Deep understanding of x86_64, aarch64, and GPUs
  • Strong C background
  • Minimum of 8 years implementing business-critical systems
Good to have:
  • Rust
  • Python
  • Go
Perks:
  • Generous cash & equity compensation
  • Health, dental, and vision coverage for you and your dependents
  • Wellness and Commuter stipends
  • 401k Plan with 2% company match (USA employees)
  • Flexible Paid Time Off Plan

Job Details

Lambda is the #1 GPU Cloud for ML/AI teams training, fine-tuning and inferencing AI models, where engineers can easily, securely and affordably build, test and deploy AI products at scale. Lambda’s product portfolio includes on-prem GPU systems, hosted GPUs across public & private clouds and managed inference services – servicing government, researchers, startups and Enterprises world-wide.


If you'd like to build the world's best deep learning cloud, join us. 


*Note: This position requires presence in our San Francisco office location 4 days per week; Lambda’s designated work from home day is currently Tuesday.

Engineering at Lambda is responsible for building and scaling our cloud offering. Our scope includes the Lambda website, cloud APIs and systems as well as internal tooling for system deployment, management and maintenance.

What you’ll Do

  • Join a team of industry-leading experts and work alongside the best minds in the field

  • Collaborate with top-tier professionals who are shaping the future of the industry

  • Build core cloud features like Virtualization, SDN, Storage, VPCs for training AI/ML models across thousands of GPUs interconnected with state-of-the-art networking fabric

You

  • Linux - 8+ years developing Linux based production systems. Strong understanding of Linux kernel internals (e.g. Memory Management, Process Scheduling, I/O Scheduling, Socket Buffers, Virtualization/KVM, Live Migration, eBPF, perf).

  • Cloud - 8+ years developing core public cloud internals (e.g. Kernel, Device Drivers, Virtualization, KVM, QEMU, Software Defined Networking, Security, Fleet Health and Performance Monitoring).

  • Architecture - Ability to architect a resilient, large-scale, distributed system from a blank sheet of paper. Have a deep understanding of x86_64, aarch64 and GPUs.

  • Programming Languages - Strong C background. Rust, Python and Go are nice to have. Minimum of 8 years implementing business-critical systems, from initial conception to successful launch.

  • Education - Computer science, electrical engineering, mathematics, or physics preferred

You will be successful in this role if you have

  • Have led and taken full ownership over large, ambiguous, cross team projects from conception to production

  • Enjoy moving fast and making a large business impact

  • Value working on a team of high performers that hold each other accountable

  • Are a self-starter, curious, and not afraid to ask when in doubt

  • Are a quick learner, enjoy learning new technologies and methodologies

  • Value working on a low ego team that emphasizes strong communication, collaboration, and getting to the right answer as a team

  • Care deeply about well-tested code

Salary Range Information

Based on market data and other factors, the salary range for this position is $255,000-$405,000. However, a salary higher or lower than this range may be appropriate for a candidate whose qualifications differ meaningfully from those listed in the job description.

About Lambda

  • Founded in 2012, ~350 employees (2024) and growing fast

  • We offer generous cash & equity compensation

  • Our investors include Andra Capital, SGW, Andrej Karpathy, ARK Invest, Fincadia Advisors, G Squared, In-Q-Tel (IQT), KHK & Partners, NVIDIA, Pegatron, Supermicro, Wistron, Wiwynn, US Innovative Technology, Gradient Ventures, Mercato Partners, SVB, 1517, Crescent Cove.

  • We are experiencing extremely high demand for our systems, with quarter over quarter, year over year profitability

  • Our research papers have been accepted into top machine learning and graphics conferences, including NeurIPS, ICCV, SIGGRAPH, and TOG

  • Health, dental, and vision coverage for you and your dependents

  • Wellness and Commuter stipends for select roles

  • 401k Plan with 2% company match (USA employees)

  • Flexible Paid Time Off Plan that we all actually use

A Final Note:

You do not need to match all of the listed expectations to apply for this position. We are committed to building a team with a variety of backgrounds, experiences, and skills.

Equal Opportunity Employer

Lambda is an Equal Opportunity employer. Applicants are considered without regard to race, color, religion, creed, national origin, age, sex, gender, marital status, sexual orientation and identity, genetic information, veteran status, citizenship, or any other factors prohibited by local, state, or federal law.

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San Jose, California, United States (Hybrid)

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