Software Engineer, Infrastructure

Cursor; New York (NY); On-site; USD 180,000 - 260,000; Full time

Job summary

SpaceXAI is seeking a Software Engineer on the Infrastructure team to own the cloud and networking foundations that power production services. You will design and operate Kubernetes clusters, edge networks, and scalable compute runtimes to enable reliable deployments across environments.

The role emphasizes cost optimization, geo deployment planning, and infrastructure unification to let teams move fast, with a focus on IaC, security, and resilient architectures across multi-region setups.

Qualifications

• Deep experience with AWS cloud infrastructure and services.
• Strong knowledge of Kubernetes, service mesh, autoscaling, and multi-region deployments.
• Proficiency in networking concepts, edge and CDN/WAF architectures.
• Infrastructure-as-code mindset with reproducible environments and self-service tooling.
• Experience with cost optimization at scale or infrastructure migration/unification.

Responsibilities

• Own Kubernetes and cluster foundations for production environments.
• Design geo-deployment architecture for cross-region replication and deployment.
• Build edge and security infrastructure to protect, rate limit, and route traffic efficiently.
• Lead cost management and optimization across cloud spend and services.
• Unify compute platform with a coherent container orchestration strategy for all teams.

Skills

AWS

Kubernetes

Networking

IaC

Cost optimization

Tools

AWS

Kubernetes

CI/CD

Job description

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today, SpaceX is actively developing the technologies to make this possible, with the ultimate goal of making life multiplanetary and expanding consciousness to the stars. SpaceXSI is building Super Intelligence to help humanity understand the universe. Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. We're creating a powerful flywheel where more compute trains better models, better models power more useful products, and what we learn from people using those products shapes what we build next.

About the Role

As a Software Engineer on the Infrastructure team at SpaceXAI, you'll own the foundational cloud and networking layer that every service runs on: network foundations, container orchestration, edge and security infrastructure, and the compute runtimes that power production.

SpaceXAI is one of the fastest-growing developer tools in the world, and you'll drive the cost management, regional deployment strategy, and infrastructure unification that make that growth possible. When your systems work well, every team is more productive, every product surface is more reliable, and Cursor can expand to serve developers everywhere.

Example projects include...

• Owning Kubernetes and cluster foundations: building and operating production clusters with proper service mesh, scaling, and ingress that teams can confidently deploy to.
• Designing the geo-deployment architecture: building a replicable, robust process for deploying geo-replicated services across cloud regions and providers.
• Building edge and security infrastructure: designing the networking and security layer at the edge to protect against abuse, manage rate limiting, and optimize traffic routing.
• Owning cost management and optimization: building attribution systems, identifying waste, and ensuring we're making smart tradeoffs between cost and reliability across all cloud spend.
• Unifying the compute platform: defining a single, opinionated container orchestration strategy so every team gets consistent, reliable deployments out of the box.

You may be a fit if

• You have deep experience with AWS (or comparable cloud providers), especially VPC networking, EKS/K8s, and IAM/account management.
• You've built and operated production Kubernetes clusters at scale, including service mesh, autoscaling, and multi-region deployments.
• You understand edge networking, CDN/WAF architectures, and traffic management at the infrastructure level.
• You care about infrastructure-as-code, reproducibility, and making it easy for other teams to self-serve reliable infrastructure.
• Experience with cost optimization at scale or infrastructure migration/unification is a plus.
• You have strong software engineering fundamentals and enjoy building the platform that makes every other team faster.

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