Cloud Security Engineer - Kubernetes Platform Quality

Join Our Team at RoonCyber and Help Shape the Future of Runtime CNAPP + CADR

Location: Remote (US-based)

Type: Full-time

Company Stage: Early-stage, venture-backed software startup

Reports To: Platform Engineering

Focus: Platform quality, Kubernetes deployments, release readiness, performance and stress testing across cloud environments (AKS, EKS, GKE)

Role Overview

At RoonCyber we are building a next-generation Cloud Application Detection & Response (CADR) and Runtime CNAPP platform focused on real-time attack detection, correlation, and response across cloud and containerized environments.

The Software Development Engineer in Test (SDET) owns platform quality across Kubernetes deployments and releases. This role is hands-on with cluster provisioning, deployment and upgrade validation, and performance and scale testing across AKS, EKS, and GKE. You will create repeatable test environments that reflect real customer setups and implement quality gates that ensure every release is safe, stable, and diagnosable.

Core Responsibilities

Deployment and Release Testing

• Validate install, upgrade, rollback, and configuration change paths for each release
• Build and maintain automated smoke and sanity checks post-deploy
• Test feature flags, configuration migrations, and version compatibility

Test Environments

• Provision and maintain repeatable test clusters in AKS, EKS, and GKE
• Establish environment parity standards across Kubernetes versions, node pools, ingress, certificates, DNS, RBAC, storage, and network policies
• Seed environments with realistic data and load profiles to simulate customer behavior

Performance and Stress Testing

• Build performance baselines and ongoing regression checks for representative workloads including high-volume ingestion, high-frequency API usage, and large datasets
• Define performance budgets and publish results with clear thresholds

Quality Gates in CI/CD

• Integrate platform checks into pipelines: deploy validation, smoke tests, upgrade tests, and performance guardrails
• Improve diagnosability with logs, metrics, and runbooks in partnership with engineering

Operational Readiness

• Validate monitoring and alerting by simulating failures
• Create repeatable playbooks for triaging environment-specific issues and regressions

What You’ll Work With

• Kubernetes: AKS, EKS, GKE, Helm, ingress, RBAC, storage, networking
• CI/CD pipelines and release processes
• Observability tools (Prometheus/Grafana, OpenTelemetry, Datadog, etc.)

What We’re Looking For

Required Qualifications

• 5+ years in QA engineering, SRE, DevOps, platform engineering, or reliability testing with a heavy testing component
• Strong hands-on Kubernetes experience, including cluster-level troubleshooting
• Proven experience testing deployments and upgrades in real environments
• Experience designing and running performance and stress tests for distributed systems
• Ability to create repeatable environments and test harnesses, not just test cases

Nice-to-Haves

• Infrastructure-as-code experience (Terraform or similar)
• Security product experience
• Multi-tenant SaaS or hybrid/on-prem deployment experience

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Mindset & Traits

• Strong sense of ownership and accountability
• Able to operate with incomplete requirements
• Systems thinker who balances reliability, speed, and practical coverage
• Comfortable in a fast-moving startup environment

Questions You Must Be Able to Answer and Describe

Before submitting your resume, please review the questions below.

If you cannot confidently answer most of these from real production experience, this role is likely not a good fit.

• Have you built or maintained repeatable Kubernetes environments in AKS, EKS, or GKE for testing production-grade deployments?
• Have you validated install, upgrade, and rollback paths for a platform running in Kubernetes, including configuration and version migrations?
• Can you design performance and stress tests that simulate real workloads, including ingestion spikes, heavy API usage, and large datasets?
• Have you integrated deployment checks, smoke tests, upgrade tests, and performance guardrails into CI/CD to gate releases?
• Can you troubleshoot failures across Kubernetes networking, ingress, RBAC, storage, and cluster configuration, and produce actionable diagnosis for engineering teams?

Why Join Us

• Own platform quality for a cloud-scale security product running in Kubernetes environments
• Work on hard problems at the intersection of Kubernetes, cloud scale, and security platforms
• High ownership and influence over release readiness and customer trust
• Competitive compensation + equity

As a fully remote company, we’re looking for candidates who take initiative, communicate proactively, and are comfortable working independently while maintaining close overlap with US Eastern Time hours. Must be eligible to work in the United States.