Kubernettes Application Support Engineer

Lumiere Systems•New York, NY

About The Position

Job Summary We are seeking a skilled Kubernetes Application Support Engineer to manage, monitor, troubleshoot, and optimize containerized applications running on Kubernetes clusters. The ideal candidate will have strong hands-on experience with container orchestration, cloud platforms, CI/CD pipelines, and production support processes.

Requirements

Strong hands-on experience with Kubernetes (K8s) architecture and components.
Experience with containerization tools like Docker.
Knowledge of cloud platforms such as: o Microsoft Azure (AKS) o Google Cloud (GKE)
Experience with CI/CD tools (Jenkins, GitLab CI, GitHub Actions).
Familiarity with Infrastructure as Code (Terraform, CloudFormation).
Knowledge of Linux system administration.
Understanding of networking concepts (Ingress, Services, DNS, Load Balancers).
Experience with monitoring/logging tools: o Prometheus o Grafana o Elasticsearch / Kibana
Strong analytical and troubleshooting skills.
Good communication and stakeholder management.
Ability to work in 24/7 support rotation (if required).
Experience in ITIL- based incident/change management process.

Responsibilities

Provide L2/L3 production support for containerized applications running on Kubernetes.
Monitor cluster and application health using tools like Prometheus, Grafana, and ELK stack.
Troubleshoot application, pod, node, and networking issues in Kubernetes environments.
Manage deployments using Helm charts, Argo CD, or CI/CD pipelines.
Perform root cause analysis (RCA) for incidents and implement preventive measures.
Work closely with DevOps and development teams for release management and environment stability.
Manage scaling, resource optimization, and performance tuning of workloads.
Handle Kubernetes upgrades, patching, and cluster maintenance.
Implement and maintain security best practices (RBAC, Network Policies, Secrets management).
Maintain documentation, runbooks, and SOPs.