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About the Role
As a Software Engineer on the AI Infrastructure team, you will build and evolve a secure, high-performance agent sandboxing platform for code execution. This role balances deep systems engineering with a focus on developer experience, creating clean APIs and client libraries for internal and customer-managed environments.
Responsibilities
- Design and build the sandboxing platform, client library, and API surface for secure code execution
- Ensure strong isolation, security, and reproducibility across user sessions and workloads
- Optimize for cold-start latency, memory footprint, and resource utilization at scale
- Drive down error rates through systematic debugging, monitoring, and proactive fixes
- Partner with internal teams to understand needs, debug issues, and build supporting tooling
- Respond to incidents and production issues with urgency, conducting root cause analysis
- Develop and maintain a product roadmap balancing immediate needs with long-term architecture
- Lead architecture reviews and own projects end-to-end from design through deployment
Requirements
- 4+ years of experience building high-performance systems software
- Experience maintaining libraries, SDKs, or developer-facing APIs
- Deep understanding of Linux internals including process isolation, memory management, cgroups, and namespaces
- Experience with containerization and virtualization technologies such as Docker, Firecracker, gVisor, QEMU, or Kata Containers
- Proficiency in a systems programming language such as Go, Rust, or C/C++
- Experience working across infrastructure layers from kernel modules to orchestration frameworks like Kubernetes
- Strong debugging skills and ability to navigate performance and security tradeoffs
- Comfort with ambiguity and context-switching between reactive and proactive work
Skills
- Systems programming
- Linux internals
- API design
- Containerization
- Virtualization
- Go
- Rust
- C/C++
- Kubernetes
- Performance optimization
- Security engineering
Experience Level
- 4+ years
About the Company
- Scale's mission is to develop reliable AI systems for the world's most important decisions.
- Provides high-quality data and full-stack technologies for leading AI models.
- Works with industry leaders including Meta, Ernst & Young, Mayo Clinic, and various government agencies.
Equal Opportunity
- Inclusive and equal opportunity workplace.
- Committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability status, gender identity, or Veteran status.
- Provides reasonable accommodations to applicants with physical and mental disabilities.