Radixark

Radixark

Member of Technical Staff — CI Engineer

Palo Alto, CA · Staff+

Sponsorship not specifiedDetected 12 hours ago
PythonBashGitAWSDockerCI/CDGitHub ActionsJenkinsLinuxMachine LearningLLMsAI OrchestrationDetection EngineeringSupply ChainResearch

About the role

  • Our CI system runs 300+ GPU tests across NVIDIA, AMD, Intel, and Ascend hardware pools, gating every commit to one of the fastest-growing open-source LLM inference engines.
  • When CI is green and fast, 100+ contributors ship with confidence.
  • When it isn't, the entire project stalls.

Responsibilities

  • Own CI reliability end-to-end - triage failures, distinguish real regressions from flaky tests and infra issues, keep main green
  • Build regression-based CI - replace hardcoded static thresholds with automated baseline comparison (metrics pipeline, durable storage, detection logic)

Requirements

  • 3+ years operating CI/CD at scale (GitHub Actions, Buildkite, Jenkins, GitLab CI, or similar)
  • NVIDIA GPU drivers, CUDA, NCCL, InfiniBand/RDMA experience in CI contexts
  • Familiarity with ML inference workloads (model loading, KV cache, quantization)

Nice to have

  • Large open-source project CI experience (100+ contributors)
  • AMD ROCm or Intel XPU CI pipelines
  • Day 20 - Full CI landscape understood, daily triage taken over, top recurring flaky tests fixed, PR CI time reduced 30%+
  • Day 40 - Regression-based checks live on nightly CI, ephemeral runner prototype deployed, runner isolation in place
  • Day 60 - Zero flaky tests.
  • Main CI 100% green when no real regression exists
  • What Success Looks Like

Compensation

  • Compensation is determined by location, level, and experience.

Benefits

  • We offer competitive base with meaningful equity, comprehensive health benefits, and flexible work arrangements.

Equal opportunity

  • Reach out via Slack or email.
  • CI fix PRs to major open-source projects are worth more than a resume.
  • RadixArk is an Equal Opportunity Employer and is proud to offer equal employment opportunity to everyone regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, veteran status, and more.
  • How to Apply

Visa & Work Authorization

  • t opportunity to everyone regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, veteran status, and more
Apply directly at Radixark →Create a free account for alerts like thisView Radixark immigration profile

This listing is sourced directly from Radixark's careers page and normalized into a canonical job model.