# AI Inference Core - Junior SDET, Release Integration Testing

**Company:** [Cerebras Systems](https://hotfix.jobs/companies/cerebras-systems)
**Location:** Sunnyvale, CA, Toronto, Canada
**Role:** QA Engineering
**Experience:** 0+ years
**Skills:** Python, Go, Data Structures, Algorithms, operating systems, Networking, Distributed Systems, automated testing, ci workflows, AI Infrastructure, Containers, cloud environments, debuggers, profilers, Observability
**Posted:** 2026-07-27

> The Junior SDET will build automated tests, diagnostics, and qualification workflows for AI inference systems, while triaging cross-stack integration and release failures. The role suits an early-career engineer with programming fundamentals, hands-on software experience, and interest in distributed systems, AI infrastructure, or hardware acceleration.

## Job Description

## Responsibilities

- Engage with selected inference-core features before qualification completes to understand dependencies, interaction risks, and required integration scenarios.
- Develop, run, and maintain automated tests for models, features, system behavior, integration, regression, and releases across the AI stack.
- Collect unit, simulation, benchmark, feature-test, and integration evidence; document gaps; execute cross-stack end-to-end workflows; and promote durable scenarios into release regression.
- Maintain master and release-branch stability by triaging regression and rollout failures, escalating with clear evidence, identifying owners, validating fixes, and verifying closure.
- Write Python, Go, or similar code for test automation, diagnostics, testbeds, data analysis, dashboards, qualification workflows, and release pipelines.
- Collaborate with Integration, Core Infra, feature teams, and release owners to reproduce issues, route missing coverage to the correct layer, and support coordinated rollouts.
- Document test intent and findings, grow toward independent ownership of a test domain, and improve automation efficiency, metrics, probes, diagnostics, and roadmap test plans.

## Requirements

- Strong software-engineering fundamentals and programming ability in Python, Go, or a similar language.
- Experience building, testing, or debugging software through internships, research, academic projects, open source, personal projects, or professional work.
- Basic understanding of data structures, algorithms, operating systems, networking, or distributed-systems concepts.
- Curiosity about how complex systems behave across component boundaries.
- Ability to break down problems, form hypotheses, gather evidence, and learn from unexpected results.
- Willingness to read unfamiliar code, learn new layers of the stack, and take ownership beyond a narrowly defined task.
- Clear communication, collaboration, persistence, learning velocity, and comfort working through ambiguity with guidance.

## Preferred Qualifications

- Coursework or project experience in testing, distributed systems, operating systems, compilers, computer architecture, AI systems, or infrastructure.
- Experience building automated tests, test frameworks, CI workflows, developer tools, or data-analysis scripts.
- Exposure to software/hardware co-design, hardware accelerators, low-level systems, or performance debugging.
- Familiarity with AI infrastructure, model deployment, large language models, multimodal workloads, containers, or cloud environments.
- Experience using logs, metrics, debuggers, profilers, or observability tools to investigate failures.
- Internship, startup, research-lab, robotics, systems, or other fast-moving hands-on experience.
- Demonstrated zero-to-one initiative through a substantial project, tool, experiment, or open-source contribution.

## Benefits and Work Arrangement

- Hybrid schedule with in-office presence three days per week.
- Office locations: Sunnyvale, CA or Toronto, Canada.

## Similar roles

- [QA Engineer](https://hotfix.jobs/jobs/89516d4d-a117-4836-8712-4e0a3ccd18d3) - Limble - Remote - $100k – $120k/yr
- [Test Engineer II](https://hotfix.jobs/jobs/857fa130-806f-4a71-8482-9de4bb7aac05) - Hinge Health - San Francisco, CA - $126k – $190k/yr
- [Software Development Engineer in Test](https://hotfix.jobs/jobs/292844b5-c4aa-4151-9064-fcf39ecb118f) - Onebrief - Remote - $150k – $185k/yr
- [Product Quality Analyst](https://hotfix.jobs/jobs/235a37d0-1ff8-4fe5-b75e-569092c8ee48) - Playground - New York, NY - $60k – $75k/yr
- [Part-Time Student Worker System Test Engineer](https://hotfix.jobs/jobs/eb6e7877-4b41-4ad5-9ab5-0d9b645a8609) - Zoox - Foster City, CA

**Apply:** https://hotfix.jobs/jobs/2b6915cb-14a0-4fc5-bfc2-55d39bf38ecf
**Canonical:** https://hotfix.jobs/jobs/2b6915cb-14a0-4fc5-bfc2-55d39bf38ecf