Sr Systems Administrator

MedRisk LLC

6d•Hybrid

About The Position

Medata is seeking a Senior Systems Administrator / DevOps Engineer to support and evolve a Linux-based production environment running legacy and modern web application platforms alongside growing DevOps and automation practices. This role blends hands-on systems administration, infrastructure reliability, and platform automation, supporting business-critical applications while enabling continuous improvement and modernization.

Requirements

5+ years experience administering Linux production environments, preferably RHEL-compatible systems.
Strong troubleshooting across systems, networking, storage, and applications.
Experience supporting legacy and modern web applications in operational environments.
Scripting experience (Bash or similar).
Familiarity with DevOps practices: automation, monitoring, CI/CD awareness.
Strong communication skills and ability to collaborate across engineering teams.
Self-directed, detail-oriented, and comfortable owning production systems.

Nice To Haves

Kubernetes or cloud-native experience.
High-availability or clustered database experience.
Linux, networking, or virtualization certifications.

Responsibilities

Administer and maintain Linux production and corporate systems (RHEL-compatible distributions including RHEL, Rocky Linux, and CentOS; plus BSD variants).
Support legacy and modern web application platforms, including Java- and Node-based services, traditional web stacks, and middleware.
Operate and maintain virtualized and clustered infrastructure (VMware, Proxmox, oVirt, Ceph).
Automate provisioning, configuration, and maintenance using Ansible, Puppet, and scripting.
Deploy and support containerized and service-based workloads (Docker; Kubernetes exposure a plus).
Monitor system health, performance, and availability; troubleshoot and resolve production incidents.
Own system and network security including patching, firewalls, certificates, and access controls.
Work with networking and storage technologies (NGINX, HAProxy, SMB/NFS/iSCSI, VPNs).
Collaborate with developers to improve deployment pipelines, operational stability, and scalability.
Maintain documentation, runbooks, and operational standards.
Participate in after-hours/on-call support as needed.