Senior Software Development Engineer in Test (SDET) - AI Cluster

Cerebras; Sunnyvale (CA); On-site; USD 170,000 - 230,000; Full time

Job summary

Cerebras Systems seeks a Senior Software Development Engineer in Test to design and execute tests for thousands of nodes in a wafer-scale AI cluster. You will define strategies, implement automated tests, and push for 99.999% reliability across software and hardware layers.

You will audit distributed ML training and inference paths, build scalable test frameworks, and collaborate with engineering across Kubernetes, Prometheus, Grafana, and data-transfer components.

Qualifications

• 5+ years testing distributed systems, datacenter software or hardware.
• Strong coding skills in Python, Go, or C/C++.
• Experience debugging large distributed systems and cloud tech.

Responsibilities

• Develop and execute tests for large-scale AI infrastructure, defining strategies.
• Automate tests to achieve high availability and security.
• Break down complex distributed systems into testable components.
• Test cluster software (Kubernetes, Prometheus, Grafana) and hardware components.

Skills

Python

Go

C/C++

Distributed systems testing

Automation

Education

Bachelor's or Master's in Computer Science, Electrical Engineering, AI or Data Science

Tools

Kubernetes

Prometheus

Grafana

Docker

PDB/GDB/Strace

Job description

Cerebras Systems builds the world's largest AI chip, 56 times larger than GPUs. This architecture allows Cerebras to deliver industry-leading training and inference speeds; over 10 times faster than GPU-based hyperscale cloud inference services. This order of magnitude increase in speed is transforming the user experience of AI applications, unlocking real-time iteration and increasing intelligence via additional agentic computation. Cerebras works with the leading model labs, global enterprises, and cutting-edge AI-native startups. OpenAI recently announced a multi-year partnership with Cerebras, to deploy 750 megawatts of scale, transforming key workloads with ultra high-speed inference.

In AI infrastructure organization, simplifying large hardware deployments with push button, single pane of glass for observability/monitoring and software capabilities for build-in resiliency are some of the key focus areas. As senior software development engineer in Test, we are looking for a candidate who can make a big impact on how we test and validate thousands of nodes in large deployments to ensure the cluster is 99.999% reliable.

Responsibilities

• You will be hired to innovate and execute tests on cutting edge AI infrastructure. Be a thinker, define optimized test strategies and methodologies.
• Cerebras is growing and innovating at a rapid pace and so is the ML community and AI models. Be a quick learner, adapt to new technologies, and bring your expertise. We are looking to hire a team with a diverse skill set.
• Deep understanding of how large-scale distributed ML training and inference works. Build a strong understanding of how to break these large distributed systems challenge into smaller components that can be unit tested.
• Automate first approach - In large scale deployment, automation drives efficiency and scalability. Aim for 100% automated tests to test all cluster features in areas of high availability, failure scenarios, performance, stress and security.
• Champion cluster security, reliability for uptime of 99.9999% and ease of use with observability.
• Test all components of AI cluster including but not limited to cluster software involving kubernetes, prometheus and grafana. Cluster hardware components like ML wafer scale accelerators, CPU runtime nodes, High speed swarmx interconnect, High speed data transfer of weights through memoryx interconnect.

Qualifications

• Bachelor's or master's degree in engineering in computer science, electrical, AI, data science or related field.
• 5+ years of experience in testing one of areas like enterprise software, distributed systems, datacenter hardware and software.
• Strong coding skills in one of the programming languages like python, golang and C/C++.
• Strong debugging skills to debug issues in large distributed systems, hardware, and software. Experience with debugging tools like pdb, gdb, strace and network monitors.
• Strong understanding of operating systems internals like memory management, file system working, security and performance.
• Strong understanding of datacenter layout, device performance characteristics like Servers, Memory, BIOS, PCIe, networking and storage.
• Experience with cloud technologies like AWS, kubernetes and dockers. Monitoring tools like grafana, prometheus is huge plus.
• Understanding and experience of ML model training and inference is a huge plus.
• Understand of ML hardware accelerators like GPU, custom accelerator ASIC is a huge plus.

Why Join Cerebras

1. Build a breakthrough AI platform beyond the constraints of the GPU.
2. Publish and open source their cutting-edge AI research.
3. Work on one of the fastest AI supercomputers in the world.
4. Enjoy job stability with startup vitality.
5. Our simple, non-corporate work culture that respects individual beliefs.

Find out more about what it's like to work at Cerebras here!

Cerebras Systems is committed to creating an equal and diverse environment and is proud to be an equal opportunity employer. We celebrate different backgrounds, perspectives, and skills. We believe inclusive teams build better products and companies. We try every day to build a work environment that empowers people to do their best work through continuous learning, growth and support of those around them.

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