QA Engineer II
Job in
Concord, Cabarrus County, North Carolina, 28025, USA
Listed on 2026-11-01
Listing for:
DDN
Full Time
position Listed on 2026-11-01
Job specializations:
-
IT/Tech
Unix/Linux, Data Engineering, Systems Engineer, SRE/Site Reliability
Job Description & How to Apply Below
- Work upon 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 run across protocols
- Contribute new benchmark profiles (YAML workload definitions) under review
- Work closely with developers to validate fixes and feature performance impact.
- 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 — file systems, networking, processes
- Exposure to CI/CD tools (Git Hub Actions or similar)
- Understanding of storage concepts (block/file/object) — willingness to learn benchmarking tools (FIO, IOR, mdtest)
- 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).
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