Senior Cloud Platform Engineer

Sonatus•Detroit, MI

19h•$137,000 - $175,000•Onsite

About The Position

Sonatus is seeking an experienced Senior Cloud Platform Engineer to own the cloud infrastructure and delivery pipeline supporting a major OEM program. The role is based on-site at the customer’s engineering facility, embedded alongside customer teams. The engineer will build and operate a GCP-based platform using GitOps and infrastructure as code, automate software delivery from commit to production, and serve as the local point of contact for cloud access, environment provisioning, and operational issues. This is a hands-on role requiring independent work and coordination across organizational boundaries. The engineer will own and evolve the program’s GCP platform, including GKE, IAM, Vertex, networking, and supporting services, with attention to reliability, security, and cost. The role also covers infrastructure as code, GitOps operations, CI/CD, observability, alerting, troubleshooting, cloud access, AI resource management, and optimization of model deployment and serving. The engineer will collaborate with Sonatus engineering teams in California, Ireland, Korea, and India to keep the customer environment aligned with the broader platform.

Requirements

At least 7 years of experience building and operating production cloud infrastructure, with a strong DevOps, platform engineering, or SRE background.
Deep hands-on Google Cloud Platform experience, including GKE, IAM, VPC/networking, and Cloud Build or equivalent; GCP depth is required.
Strong Terraform skills and a track record of managing production infrastructure as code.
Practical experience with GitOps workflows and tools such as Argo CD, Flux, or Helm, and a preference for declarative, version-controlled operations.
Solid Kubernetes and containerization experience, including deploying, scaling, securing, and debugging workloads.
Strong automation and scripting ability in Python, Go, or Bash, with a bias toward eliminating manual steps.
Experience building and maintaining CI/CD pipelines using GitHub Actions, GitLab CI, Jenkins, or similar tools.
Ability to operate independently in a customer environment, with strong communication, sound escalation judgment, and credibility working directly with a partner organization’s engineering and IT teams.
Experience with ML or AI workloads running on cloud infrastructure.

Nice To Haves

Experience working embedded at, or delivering into, a large enterprise or automotive customer environment.
Familiarity with cloud cost management and FinOps practices.
Security and compliance experience in a regulated or enterprise setting.
Experience with AWS or Azure.

Responsibilities

Own and evolve the program’s GCP cloud platform, including GKE, IAM, Vertex, networking, and supporting services, focusing on reliability, security, and cost.
Build and maintain infrastructure as code in Terraform, keeping environment configuration reviewed, versioned, and reproducible.
Operate the platform using GitOps practices and tools such as Argo CD and Helm, ensuring environment state is declarative and changes are traceable to commits.
Design and maintain CI/CD automation to move services from commit to deployment with minimal manual intervention, including blue/green and canary rollouts.
Build observability and alerting that provide Sonatus and the customer with a clear view of system health, and lead troubleshooting when issues occur.
Serve as the on-site owner for cloud access and environment issues, coordinating permissions, provisioning, and workflow questions with customer IT and platform teams.
Manage program AI resources, including model access, GPU and accelerator capacity, quotas, and API keys across Vertex and other model services; track usage and spending.
Optimize AI model deployment and serving for latency, throughput, and cost through model selection, right-sizing, batching, caching, and quantization, and measure results against agreed benchmarks.
Automate recurring operational work and reduce toil so developer velocity does not depend on manual intervention.
Partner with Sonatus engineering teams in California, Ireland, Korea, and India to align the on-site environment with the broader platform.