xAI's mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge.

About the Role

Grok and X are powered largely from our own on-premise infrastructure which enables us to move at speed and efficiency when deploying vast amounts of capacity. People wouldn't be able to enjoy participating in the townhall on X or use Grok to understand the universe if it weren't for our Edge networking infrastructure.

We are seeking two senior engineers that help architect, develop, and build our peering and transit infrastructure with associated routing policies, eDNS, cloud connectivity, CGNAT, and load balancer fleets. The two successful candidates will have great Python skills to remove repetitive engineering cycles and auto-mitigate customer impacts.

Responsibilities

• Architect, develop, and maintain peering and transit infrastructure, including routing policies, eDNS, cloud connectivity, CGNAT, and load balancer fleets.

• Leverage Python scripting to automate repetitive engineering tasks and proactively mitigate customer impacts.

• Manage and troubleshoot DNS infrastructure to ensure reliable performance.

• Oversee and resolve issues related to cloud VPCs and connected network hardware.

• Diagnose and resolve complex TCP/IP issues to maintain seamless network operations.

• Collaborate with cross-functional teams to enhance infrastructure efficiency and support xAI's AI platforms.

Required Qualifications

• 7+ years of experience with edge network hardware, including load balancers, CGNAT, routers, and switches.

• 7+ years of routing experience in backbones, peering, and transit areas with expertise in traffic engineering.

• 5+ years of experience using Python scripting to automate deployments and break/fix tasks.

• 3+ years of experience managing DNS infrastructure.

• 3+ years of experience managing and troubleshooting cloud VPCs and connected network hardware.

• Proven ability to troubleshoot complex TCP/IP issues.

Preferred Qualifications

• Experience with A10 Networks, NGINX, or open-source load balancer/CGNAT software.

• Familiarity with Route53 and UltraDNS.

• Expertise in GCP, AWS, and OCI VPC architecture and troubleshooting.

• Knowledge of Kubernetes Ingress.

• Experience with CDN, Fastly, and Cloudfront.

• Demonstrated success in on-call rotations and incident response in high-stakes environments.

• Strong problem-solving skills and adaptability in a fast-paced, ambiguous setting.

Annual Base Salary

$180,000 - $440,000 USD

Benefits

Base salary is just one part of our total rewards package at X, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks.

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Grok and X are powered largely from our own on-premise infrastructure which enables us to move at speed and efficiency when deploying vast amounts of capacity. People wouldn’t be able to enjoy participating in the townhall on X or use Grok to understand the universe if it weren’t for our Edge networking infrastructure.

Responsibilities

• Architect, develop, and maintain peering and transit infrastructure, including routing policies, eDNS, cloud connectivity, CGNAT, and load balancer fleets.

• Leverage Python scripting to automate repetitive engineering tasks and proactively mitigate customer impacts.

• Manage and troubleshoot DNS infrastructure to ensure reliable performance.

• Oversee and resolve issues related to cloud VPCs and connected network hardware.

• Diagnose and resolve complex TCP/IP issues to maintain seamless network operations.

• Collaborate with cross-functional teams to enhance infrastructure efficiency and support xAI’s AI platforms.

Required Qualifications

• 7+ years of experience with edge network hardware, including load balancers, CGNAT, routers, and switches.

• 7+ years of routing experience in backbones, peering, and transit areas with expertise in traffic engineering.

• 5+ years of experience using Python scripting to automate deployments and break/fix tasks.

• 3+ years of experience managing DNS infrastructure.

• 3+ years of experience managing and troubleshooting cloud VPCs and connected network hardware.

• Proven ability to troubleshoot complex TCP/IP issues.

Preferred Qualifications

• Experience with A10 Networks, NGINX, or open-source load balancer/CGNAT software.

• Familiarity with Route53 and UltraDNS.

• Expertise in GCP, AWS, and OCI VPC architecture and troubleshooting.

• Knowledge of Kubernetes Ingress.

• Experience with CDN, Fastly, and Cloudfront.

• Demonstrated success in on-call rotations and incident response in high-stakes environments.

• Strong problem-solving skills and adaptability in a fast-paced, ambiguous setting.

Annual Base Salary

$180,000 - $440,000 USD

Benefits

Base salary is just one part of our total rewards package at X, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks.

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The Network Services team builds and operates the foundational networking that powers CoreWeave's Kubernetes platforms at cloud scale. The team is responsible for container networking, connectivity, and network services that support large-scale, GPU-driven workloads across regions and environments. They focus on scalability, reliability, security, and performance while delivering intuitive platforms for internal teams and customers.

About the Role

As a Senior Engineer focused on our Cilium-based CNI, you will design, build, and operate the container networking layer that underpins CoreWeave's Kubernetes platforms. Day to day, you will work on evolving our CNI stack to support large, high-density GPU clusters with demanding throughput and latency requirements. You will partner closely with Kubernetes, Infrastructure, and Network Services engineers to ensure the platform is highly available, observable, and secure. This role spans architecture, implementation, and operations, with ownership from prototype through production. You will also help shape how our networking platform scales for future growth.

Who You Are

• 5+ years of experience as a Software Engineer or Systems Engineer working on cloud infrastructure or large-scale distributed systems.
• Hands-on production experience with Cilium CNI (or equivalent advanced CNIs), including cluster configuration and lifecycle management.
• Strong understanding of Cilium's eBPF datapath, policy model, and load-balancing mechanisms.
• Deep knowledge of cloud networking concepts, including VPCs, subnets, routing, security groups/ACLs, NAT, and ingress/egress architectures.
• Experience designing multi-tenant network architectures with strong isolation and security.
• Solid grounding in TCP/IP, dynamic routing (e.g., BGP), ECMP, MTU/fragmentation, and overlay/underlay networking (VXLAN, Geneve, encapsulation).
• Experience with network observability and troubleshooting across L3–L7.
• Proficiency in at least one systems language such as Golang or C/C++.
• Experience working in modern CI/CD environments.
• Experience operating Kubernetes at scale, including cluster lifecycle management and debugging networking issues across pods, nodes, and external services.
• Demonstrated ownership of complex systems end-to-end.

Preferred

• Experience operating cloud-scale network services across tens of thousands of nodes and multiple regions.
• Contributions to Cilium, Kubernetes, or related open-source networking projects.
• Experience with eBPF development and performance tuning.
• Experience building Kubernetes operators or controllers.
• Familiarity with service meshes, multi-cluster networking, or cluster mesh solutions.
• Experience in GPU-heavy, HPC, or other performance-sensitive environments.

Wondering if you’re a good fit?

We believe in investing in our people and value candidates who bring diverse experiences , even if you’re not a 100% match on paper. If some of this sounds like you, we’d love to talk.

• You love solving complex distributed systems and networking challenges at scale.
• You’re curious about cloud-native networking, eBPF, and Kubernetes internals.
• You’re an expert in building reliable, scalable infrastructure that runs in production.

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

The base salary range for this role is $165,000 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, including:

• 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

Our Workplace

While we prioritize a hybrid work environment, remote work may be considered for candidates located more than 30 miles from an office, based on role requirements for specialized skill sets. New hires will be invited to attend onboarding at one of our hubs within their first month. Teams also gather quarterly to support collaboration.

California Consumer Privacy Act - California applicants only

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.

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At Cloudflare, we're on a mission to help build a better Internet. We protect and accelerate any Internet application online without adding hardware, installing software, or changing a line of code.

As a Systems Reliability Engineer on one of our Production Engineering teams, you'll be building the tools to help engineers deploy and operate the services that make Cloudflare work. Our mission is to provide a reliable, yet flexible, platform to help product teams release new software efficiently and safely.

Core platforms we operate at Cloudflare include:

• Kubernetes
• Kafka
• Developer tools, CI, and CD systems
• Vault, Consul
• Terraform
• Temporal Workflows
• Cloudflare Developer Platform

Responsibilities

• Build software that automates the operation of large, highly-available distributed systems.
• Ensure platform security, and guide security best practices
• Document your work and guide fellow developers towards optimal solutions
• Contribute back to the open source community
• Leave code better than we found it

Requirements

• Recent career experience with Go or Python and at least 3 years experience in the role of full-time software engineer (any language). Rust is an added bonus.
• Experience with deploying and managing services using Docker on Linux
• A firm grasp of IP networking, load balancing and DNS
• Excellent debugging skills in a distributed systems environment
• Source control experience including branching, merging and rebasing (we use git)
• The ability to break down complex problems and drive towards a solution

Bonus Points

• Experience with Deployment, StatefulSets, Persistent Volumes Claims, Ingresses, CRDs on Kubernetes
• Operational experience deploying and managing large systems on bare metal
• Experience as a Site Reliability Engineer (SRE) for a large-scale company
• You have practical knowledge of web and systems performance, and extensively used tracing tools like ebpf and strace.
• Alerting and monitoring (Prometheus/Alert Manager), Configuration Management (salt)

What Makes Cloudflare Special?

We're not just a highly ambitious, large-scale technology company. We're a highly ambitious, large-scale technology company with a soul. Fundamental to our mission to help build a better Internet is protecting the free and open Internet.

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Key Responsibilities:

• Design, implement, and own microservices and REST/GraphQL APIs in Node.js/TypeScript (NestJS preferred)
• Translate product requirements into technical designs; break down work, estimate, and deliver incrementally
• Model data and optimize queries in MongoDB; implement effective caching with Redis (TTL, eviction, hot-key mitigation)
• Ship production-ready code with unit/integration tests; participate in on-call, incident response, and postmortems
• Containerize and deploy via Docker/Kubernetes; automate builds and releases with CI/CD (blue/green or canary)
• Instrument services for logs, metrics, and traces (p95/p99); continuously improve latency, reliability, and cost
• Review code, document designs, and mentor SE II/III engineers; contribute to shared standards and best practices

Requirements:

• 7+ years of software engineering experience, including 3+ years building backend services in Node.js/TypeScript
• Strong API fundamentals: versioning, pagination, authN/Z (OAuth/OIDC), and secure coding (OWASP)
• Hands-on with NestJS/Express/Fastify; familiarity with microservices patterns and event-driven workflows
• MongoDB expertise (schema design, indexing, basic sharding concepts) and Redis caching patterns
• Cloud experience on GCP (preferred) or AWS; Docker; working knowledge of Kubernetes; CI/CD with GitHub Actions/Jenkins/GitLab
• Observability skills: Datadog/OpenTelemetry/Prometheus/Grafana; confident debugging in production

Nice to Have:

• Kafka or Pub/Sub; API Gateway/Ingress; feature flags; rate limiting and quotas
• Terraform/Helm; security tooling (SonarQube), dependency hygiene, secret management
• Performance profiling, load testing, and practical cost optimization

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