Sr. Software Engineer II, Sandboxes & Virtualization
Design and build secure, high-performance sandboxed runtime environments for multi-tenant Kubernetes platforms, working at the intersection of container runtimes, lightweight virtualization, GPU infrastructure, and Linux systems engineering.
Compensation
$182K–$242K / yr
Location
Livingston, NJ / New York, NY / Sunnyvale, CA / Bellevue, WA
Work setup
Not specified
Seniority
Senior
Employment
Full time
Experience
3+ years
Category
Software engineering
Posted
Skills
ai
cloud
cloud-native
containerization
gpu
kubernetes
linux
spring
virtualization
Must have
3+ years of experience in systems, platform, infrastructure, or production engineering at scale
Strong hands-on experience with Kubernetes, container orchestration, and cloud-native architectures, including controllers, operators, or scheduling extensions
Experience designing, implementing, or operating secure execution environments (container runtimes, sandboxed workloads, or virtualized systems)
Practical experience with lightweight virtualization and sandboxing technologies (e.g., Kata Containers, gVisor, KubeVirt, QEMU)
Experience supporting GPU-accelerated workloads in multi-tenant environments, including GPU scheduling, isolation, device passthrough, mediated devices, or virtualization
Proficient in systems-oriented programming (Go, C/C++, Rust, Bash) with strong Linux internals knowledge
Skilled at diagnosing and resolving complex performance, reliability, or isolation issues across containers, VMs, and infrastructure
Experienced in profiling, benchmarking, and tuning performance across runtime, virtualization, and GPU stacks
Nice to have
Experience building systems for safely executing untrusted or sensitive workloads in shared environments
Familiarity with GPU drivers and low-level virtualization or I/O optimization techniques
Experience defining threat models and implementing runtime security policies in multi-tenant systems
Full description
CoreWeave is The Essential Cloud for AI™. Built for pioneers by pioneers, CoreWeave delivers a platform of technology, tools, and teams that enables innovators to build and scale AI with confidence. Trusted by leading AI labs, startups, and global enterprises, CoreWeave combines superior infrastructure performance with deep technical expertise to accelerate breakthroughs and turn compute into capability. Founded in 2017, CoreWeave became a publicly traded company (Nasdaq: CRWV) in March 2025. Learn more at .
What You'll Do:
The Runtime & GPU Systems team builds and operates secure, high-performance environments for multi-tenant Kubernetes platforms at scale. Our team sits at the intersection of container runtimes, lightweight virtualization, GPU infrastructure, and Linux systems engineering. We partner closely with security, platform, and GPU infrastructure teams to deliver robust, isolated, and efficient execution environments for AI-driven workloads.
About the role:
As a GPU & Runtime Systems Engineer, you will design, build, and evolve secure sandboxed runtime environments for Kubernetes workloads, focusing on runtime isolation, performance, and security. You will integrate container runtimes, lightweight VMs, and virtualization technologies to support GPU-accelerated workloads in multi-tenant environments. Day-to-day, you'll develop GPU-aware sandboxing and scheduling strategies, optimize containerization and I/O performance for latency-sensitive workloads, and influence architectural decisions across Linux internals, container runtimes, virtualization layers, and GPU drivers.
Some of what you'll work on:
Design and implement secure execution environments for containerized and virtualized workloads.
Build GPU-aware scheduling, isolation, and resource management strategies for multi-tenant workloads.
Optimize container, VM, and I/O performance across GPU-accelerated workloads.
Conduct profiling, benchmarking, and performance tuning for runtime, virtualization, and GPU stacks.
Contribute to architectural decisions across Linux internals, container runtimes, virtualization layers, and GPU drivers.
Collaborate with security, platform, and infrastructure teams to define and implement runtime isolation and performance standards.
Who You Are:
3+ years of experience in systems, platform, infrastructure, or production engineering at scale.
Strong hands-on experience with Kubernetes, container orchestration, and cloud-native architectures, including controllers, operators, or scheduling extensions.
Experience designing, implementing, or operating secure execution environments (container runtimes, sandboxed workloads, or virtualized systems).
Sr. Software Engineer II, Sandboxes & Virtualization at CoreWeave (Livingston, NJ / New York, NY / Sunnyvale, CA / Bellevue, WA) — aijobsearch
Practical experience with lightweight virtualization and sandboxing technologies (e.g., Kata Containers, gVisor, KubeVirt, QEMU).
Experience supporting GPU-accelerated workloads in multi-tenant environments, including GPU scheduling, isolation, device passthrough, mediated devices, or virtualization.
Proficient in systems-oriented programming (Go) with strong Linux internals knowledge.
Skilled at diagnosing and resolving complex performance, reliability, or isolation issues across containers, VMs, and infrastructure.
Experienced in profiling, benchmarking, and tuning performance across runtime, virtualization, and GPU stacks.
Preferred:
Experience building systems for safely executing untrusted or sensitive workloads in shared environments.
Familiarity with GPU drivers and low-level virtualization or I/O optimization techniques.
Experience defining threat models and implementing runtime security policies in multi-tenant systems.
Wondering if you're a good fit?
We believe in investing in our people, and value candidates who can bring their own diversified experiences to our teams – even if you aren't a 100% skill or experience match.
Why CoreWeave?
At CoreWeave, we work hard, have fun, and move fast! We're in an exciting stage of hyper-growth that you will not want to miss out on. We're not afraid of a little chaos, and we're constantly learning. Our team cares deeply about how we build our product and how we work together, which is represented through our core values:
Be Curious at Your Core
Act Like an Owner
Empower Employees
Deliver Best-in-Class Client Experiences
Achieve More Together
We support and encourage an entrepreneurial outlook and independent thinking. We foster an environment that encourages collaboration and enables the development of innovative solutions to complex problems. As we get set for takeoff, the organization's growth opportunities are constantly expanding. You will be surrounded by some of the best talent in the industry, who will want to learn from you, too. Come join us!
The base salary range for this role is $182,000 to $242,000. The starting salary will be determined based on job-related knowledge, skills, experience, and market location. We strive for both market alignment and internal equity when determining compensation. In addition to base salary, our total rewards package includes a discretionary bonus, equity awards, and a comprehensive benefits program (all based on eligibility).
What We Offer
The range we’ve posted represents the typical compensation range for this role. To determine actual compensation, we review the market rate for each candidate which can include a variety of factors. These include qualifications, experience, interview performance, and location.
In addition to a competitive salary, we offer a variety of benefits to support your needs. The benefits below reflect our US-based offerings for full-time employees; for roles in other locations, benefits vary and are shared during the hiring process. These include:
Medical, dental, and vision insurance - 100% paid for by CoreWeave
Company-paid Life Insurance
Voluntary supplemental life insurance
Short and long-term disability insurance
Flexible Spending Account
Health Savings Account
Tuition Reimbursement
Ability to Participate in Employee Stock Purchase Program (ESPP)
Mental Wellness Benefits through Spring Health
Family-Forming support provided by Carrot
Paid Parental Leave
Flexible, full-service childcare support with Kinside
401(k) with a generous employer match
Flexible PTO
Catered lunch each day in our office and data center locations
A casual work environment
A work culture focused on innovative disruption
California Applicants
California Consumer Privacy Act
Equal Opportunity & Accommodations
CoreWeave is an equal opportunity employer, committed to fostering an inclusive and supportive workplace. All qualified applicants and candidates will receive consideration for employment without regard to race, color, religion, sex, disability, age, sexual orientation, gender identity, national origin, veteran status, or genetic information.
As part of this commitment and consistent with the Americans with Disabilities Act (ADA), CoreWeave will ensure that qualified applicants and candidates with disabilities are provided reasonable accommodations for the hiring process, unless such accommodation would cause an undue hardship. If reasonable accommodation is needed, please contact: careers@coreweave.com.
Export Control Compliance
This position requires access to export controlled information. To conform to U.S. Government export regulations applicable to that information, applicant must either be (A) a U.S. person, defined as a (i) U.S. citizen or national, (ii) U.S. lawful permanent resident (green card holder), (iii) refugee under 8 U.S.C. § 1157, or (iv) asylee under 8 U.S.C. § 1158, (B) eligible to access the export controlled information without a required export authorization, or (C) eligible and reasonably likely to obtain the required export authorization from the applicable U.S. government agency. CoreWeave may, for legitimate business reasons, decline to pursue any export licensing process.