Astera Labs Inc.
Performance Engineer
San Jose, California, United States
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About the role
- Astera Labs is a hyper-growth connectivity company enabling the rack-scale AI infrastructure powering the world's most advanced GPU clusters.
- In this role, you will define how the world measures scale-up fabric performance.
- Your data will directly shape architecture, firmware, and product decisions - and fuel the marketing narrative that positions Astera Labs at the center of AI connectivity.
Responsibilities
- Build and maintain baseline performance benchmarks using industry-standard tools such as NVBandwidth and NCCL across a range of GPU configurations and switch topologies.
- Evaluate fabric performance as inference cluster size scales from 16 to 32 GPUs and beyond, identifying bottlenecks and building performance scaling models for state-of-the-art AI workloads.
- Design and execute head-to-head performance comparisons against competing fabric switch solutions to produce data-driven differentiation evidence.
- Design, build, and maintain automated lab infrastructure including test execution pipelines, traffic generation tooling, and data collection and reporting systems.
- You'll build the roofline models, benchmarks, and end-to-end workload studies that quantify our performance leadership, expose bottlenecks, and drive performance fine-tuning of real AI workloads on our fabric to inform product direction.
Skills
- Performance Characterization & Benchmarking
- Real Workload Analysis & Fabric Scalability
- Test Infrastructure & Automation
- Cross-Functional Impact & Innovation
Compensation
- $16k-$32k
This listing is sourced directly from Astera Labs Inc.'s careers page and normalized into a canonical job model.