Senior Cloud Engineer: Scale, Security & CI/CD (Remote)

Mosaec; Bellevue, Northern (WA, KY); Hybrid; USD 215,000 - 240,000; Full time

Benefits offered by this job

Health insurance

401(k) matching

Paid time off

Job summary

OfferUp in Bellevue, WA / remote options is seeking a Senior Cloud Engineer to join the Cloud Engineering team. You will own end-to-end design, build, and operation of cloud infrastructure, platform tooling, and CI/CD systems powering OfferUp’s core applications.

You will balance hands-on ownership with mentoring, set technical standards, and drive security, reliability, and cost optimization at scale across AWS and GCP.

Qualifications

• 5–8 years in cloud engineering, infrastructure, platform, DevOps, or SRE roles
• Bachelor’s in Computer Science or related field, or equivalent practical experience
• Deep, hands-on AWS (ideally GCP) with EKS/GKE, Lambda, networking, IAM, S3, Kinesis, OpenSearch, Route53
• Kubernetes (EKS/GKE), Helm, GitOps (ArgoCD), and CI/CD pipelines (GitHub Actions or similar)
• Observability tooling (Datadog) for metrics, logs, traces, and alerting
• Proficiency in Java, TypeScript, Python, or Go; scripting and SQL
• Strong communication and leadership to mentor engineers

Responsibilities

• Build cloud infrastructure as code — design, implement, and maintain AWS and GCP infrastructure with Terraform
• Own our Kubernetes & GitOps platform — run and evolve EKS/GKE (cluster upgrades, Envoy/Gloo networking, Helm, ArgoCD)
• Keep the SDLC fast and safe — build CI/CD pipelines and developer workflows (GitHub Actions, monorepo tooling, JFrog Artifactory) and maintain golden templates
• Lead platform migrations end-to-end — plan, execute, and de-risk observability, data-store, Kubernetes, and multi-account migrations
• Drive operational excellence & security — observability in Datadog, on-call, remediate CVEs, manage secrets and access controls
• Multiply the team — enable AI/ML developer tooling, lead design and code reviews, mentor engineers

Skills

Cloud engineering

Leadership

Communication

SRE

Coding

Observability

Education

Bachelor's in CS or related field

Tools

Kubernetes (EKS/GKE)

Terraform

GitHub Actions

ArgoCD

Helm

Datadog

Job description

OfferUp in Bellevue, WA / remote options is seeking a Senior Cloud Engineer to join the Cloud Engineering team. You will own end-to-end design, build, and operation of cloud infrastructure, platform tooling, and CI/CD systems powering OfferUp’s core applications.

You will balance hands-on ownership with mentoring, set technical standards, and drive security, reliability, and cost optimization at scale across AWS and GCP.