Supervisor, Linux & Unix Systems Engineer

Concentra is recognized as the nations leading occupational health care company. With more than 40 years of experience Concentra is dedicated to our mission to improve the health of Americas 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 their
employees.

The Linux & Unix Systems Engineering Supervisor leads a small team of engineers (Levels IIII) 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.

Team Leadership & People Management:

• Supervise 24 engineers (Linux/Unix Systems Engineer IIII); conduct regular 1:1s coachingand 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.

Education Level: Bachelors Degree
Major: Computer Engineering Computer Science Information Technology
Degree 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)
• 13 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/Competencies
Concentra 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 and
  escalations; maintains strong security posture

Governance & Process:

• Leads CAB/ARB participation; supports audits; manages change control; drives continuous improvement and modernization

• 401(k) Retirement Plan with Employer Match
• Medical Vision Prescription Telehealth & Dental Plans
• Life & Disability Insurance
• Paid Time Off
• Colleague Referral Bonus Program
• Tuition Reimbursement
• Commuter Benefits
• Dependent Care Spending Account
• Employee Discounts

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process to perform essential job functions and to receive other benefits and privileges of employment. Please contact us torequest accommodation if required.

*This job requires access to confidential and sensitive information requiring ongoing discretion and secure information management*

Concentra is an Equal Opportunity Employerincluding disability/veterans