Supervisor, Linux & Unix Systems Engineer at Concentra

Addison, Texas, United States -

Full Time

Start Date

Immediate

Expiry Date

10 Apr, 26

Salary

0.0

Posted On

10 Jan, 26

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Linux, Unix, RHEL, Solaris, Ansible, Terraform, Docker, Kubernetes, Virtualization, Security, Compliance, Automation, Troubleshooting, Team Leadership, Architecture, Cloud

Industry

Hospitals and Health Care

Description

Overview Concentra is recognized as the nation’s leading occupational health care company. With more than 40 years of experience, Concentra is dedicated to our mission to improve the health of America’s workforce, one patient at a time. With a wide range of services and proactive approaches to care, Concentra colleagues provide exceptional service to employers and exceptional care to theiremployees. The Linux & Unix Systems Engineering Supervisor leads a small team of engineers (Levels I–III) responsible for supporting and modernizing RHEL and Solaris platforms. This player-coach role balances people leadership with hands-on engineering to ensure reliability, security, and operational excellence across enterprise systems. The supervisor guides architecture decisions, oversees workload distribution, ensures compliance, and represents the team in cross-functional forums (CAB/ARB) and strategic initiatives. Responsibilities Team Leadership & People Management: Supervise 2–4 engineers (Linux/Unix Systems Engineer I–III); conduct regular 1:1s, coaching,and performance feedback. Plan and assign work based on skill level; set team goals, priorities, and deliverable timelines. Lead hiring/onboarding for the team; create individualized development plans (e.g., RHCSA →RHCE → RHCA). Mentor Engineer I in foundational skills; guide Engineer II in project ownership; review Engineer III designs as technical lead. Operational Ownership & Escalation: Own operational KPIs: patch & hardening compliance, SLA adherence, backup verification, configuration drift, and automation coverage. Manage on-call readiness, rotation, and escalation paths; lead post-incident RCAs and drive corrective actions. Ensure audit readiness (SOX, HIPAA, PCI) and coordinate evidence with Security/Compliance Architecture & Engineering (Hands-On as Needed): Oversee and participate in design and deployment of RHEL and Solaris platforms across physical and virtualized environments (AWS; Azure; VMware; LDOMs/Zones). Support container development and administration (such as Docker, Podman; Kubernetes/OpenShift environments where applicable). Guide HA cluster architectures (e.g., Pacemaker/Corosync) and enterprise storage (LVM, ZFS, Stratis, Ceph Storage, or other enterprise storage technologies). Review and approve Configuration-as-Code (e.g., Ansible) and Infrastructure-as-Code (e.g., Terraform) patterns, author critical modules or reference templates when necessary. Oversee standard OS images (Kickstart, cloud-init) and repository/lifecycle management; ensure consistency across environments. Direct advanced troubleshooting during complex outages; partner with Principal/Staff engineers for architectural escalations. Security, Compliance & Standards: Enforce OS hardening standards (DISA STIG, CIS benchmarks) and vulnerability remediation processes. Maintain platform standards, SOPs, and runbooks; ensure documentation quality and currency. Ensure change control quality and provide approvals for production changes. Validate platform readiness for releases and new deployments. Cross-Functional Collaboration & Governance: Represent the team in CAB and Architecture Review Board; communicate impacts/risks to stakeholders. Coordinate work with DevOps, Security, DBAs, Virtual Infrastructure, Networking, and Application Development teams. Provide input on tooling, licensing, and training budgets relevant to Linux/Unix operations. Qualifications Education Level: Bachelor’s DegreeMajor: Computer Engineering, Computer Science, Information TechnologyDegree must be from an accredited college or university.Certifications and/or Licenses: Red Hat Certified Engineer (RHCE) preferred; Red Hat Certified Architect (RHCA) beneficial; ITIL Foundation helpful Job-Related Experience 7+ years of relevant Linux/Unix systems engineering experience (RHEL/Solaris) 1–3 years of team leadership in a technical capacity (lead engineer, supervisor, or similar), preferably in small teams Mastery of RHEL 8/9; strong Solaris 11 experience (Zones, LDOMs) Proven experience with multi-site operations, virtualization (VMware/KVM), and identity integration (SSSD/AD/LDAP/Kerberos) Demonstrated expertise of Configuration-as-Code (Cac), automation (e.g., Ansible) and IaC (Terraform) Experience supporting audits (SOX, HIPAA, PCI) and driving RCAs and continuous improvement initiatives Familiarity with observability platforms (e.g., Prometheus, Splunk, Dynatrace, Grafana, Datadog) Job-Related Skills/CompetenciesConcentra Core Competencies: Service Mentality, Attention to Detail, Sense of Urgency, Initiative, Flexibility Leadership & Communication: Coaches multi-level engineers; provides clear direction; communicates technical issues tonon-experts; facilitates cross-team alignment Operational Excellence: Prioritizes workload; manages SLAs and KPIs; enforces standards and documentation quality; ensures on-call readiness Technical Oversight: Reviews/approves designs and automation patterns; contributes hands-on to complex builds andescalations; maintains strong security posture Governance & Process: Leads CAB/ARB participation; supports audits; manages change control; drives continuous improvement and modernization

Responsibilities

The Supervisor, Linux & Unix Systems Engineer leads a team of engineers to support and modernize RHEL and Solaris platforms while ensuring operational excellence. Responsibilities include team leadership, operational ownership, architecture and engineering oversight, and cross-functional collaboration.