QA Engineer II
Primary stack
Nice to have's
Job description
About the Position
QA Engineer II
We are seeking a Performance Automation Engineer to join our team at DDN in Raleigh, North Carolina. This role focuses on building and extending our automated benchmarking infrastructure for the RED (Infinia) storage platform, covering S3, Block/CSI, and POSIX/HPC I/O paths.
Responsibilities
- Work on performance testing for a large-scale distributed storage platform supporting S3 object storage, POSIX file systems, and block-level protocols.
- Write and maintain Ansible playbooks/roles for cluster setup, health checks, and install/configuration.
- Contribute to Celery-based task orchestration for running I/O workloads in parallel.
- Execute and troubleshoot storage benchmarks: FIO, IOR, mdtest, IO500, WARP.
- Write Python scripts for parsing results, generating manifests, and normalizing metrics.
- Help maintain the PostgreSQL results schema and Grafana dashboards.
- Assist with test reporting integration.
- Debug test failures and flaky pipeline runs across protocols.
- Contribute new benchmark profiles (YAML workload definitions) under review.
- Work closely with developers to validate fixes and feature performance impact.
Requirements
- Python (2+ yrs): comfortable with scripting, basic async/task-queue concepts (Celery a plus).
- Working knowledge of Ansible (writing/modifying playbooks and roles).
- Basic SQL skills (PostgreSQL).
- Linux fundamentals - filesystems, networking, processes.
- Exposure to CI/CD tools (GitHub Actions or similar).
- Understanding of storage concepts (block/file/object) - willingness to learn benchmarking tools (FIO, IOR, mdtest).
Nice to Have
- Prior exposure to Redis/RabbitMQ or any message queue.
- Grafana or other dashboarding tool experience.
- Node.js basics.
- Internship/project experience with performance testing or storage systems.
- Familiarity with monitoring and metrics tools (Prometheus, Grafana).
We Offer
- Compensation Range: $110K - $140K
About the Company
DDN is a leading provider of data storage solutions, dedicated to delivering high-performance, reliable, and scalable storage systems. Our team is passionate about innovation and excellence in storage technology.
© Data Direct Networks. This job description was sourced from the employer's public career page. TheJob is not the employer — we index the posting and route candidates to the source. All content rights and hiring decisions belong to the employer.
DataDirect Networks (DDN.com) is a world leader in massively-scalable storage platforms and solutions engineered for the Big Data and Cloud era. Our storage, processing solutions and professional services enable content-rich and high-data growth environments to achieve the highest levels of systems performance, scalability and efficiency.In solving today’s Big Data lifecycle management challenges at scale, DDN enables organizations to maximize the value of their information, everywhere. As the technology behind the world’s leading data-driven organizations, our customers include online content and social networking providers, high performance cloud and grid computing, life sciences, financial services, media production houses and security and intelligence agencies.
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