Onshore Senior Unix Linux SME -CGEMJP00349841

Role: Onshore Senior Unix Linux SME

Location: USA Remote

JD

Role Overview

We are seeking a highly experienced Linux/Unix Subject Matter Expert (SME) to support, modernize, and transform large-scale, mission-critical enterprise infrastructure. This role requires deep hands-on expertise in incident management (P1/P2), platform engineering, and hybrid cloud environments, supporting 20,000+ global servers across datacenters and cloud platforms.

The ideal candidate will possess a strong blend of operational excellence, engineering leadership, and automation expertise, with proven success in modernization initiatives, legacy migrations, and enterprise-scale system design.

Key Responsibilities

Critical Incident & Operations Management

Serve as SME for P1/P2 incident response, root cause analysis, and service restoration for mission-critical systems

Lead incident bridges and post-incident reviews; implement preventive measures

Drive improvements in incident management, observability, and system reliability

Linux / Unix Platform Engineering

Manage full RHEL lifecycle (7–8+), including upgrades, patching, and end-of-life planning

Implement CIS-based OS hardening and ensure continuous compliance

Develop and maintain automation using Chef, Ansible, and scripting (Bash/KornShell/Python)

Build and manage RHEL golden images and cloud templates

Infrastructure Transformation & Modernization

Lead RHEL 7 → RHEL 8 migration initiatives, reducing technical debt and improving security posture

Drive AIX/legacy Unix migrations to Linux and Azure (including Azure Skytap)

Support application and database modernization, reducing operational and revenue risk

Enable datacenter consolidation and cloud adoption strategies

Hybrid Cloud & Virtualization

Support large-scale environments across VMware, Nutanix, Dell VxRail, and Azure IaaS / VMware Solution

Design and manage hybrid cloud architectures integrating on-prem and cloud platforms

Execute P2V migrations and optimize virtualized workloads

Enterprise Systems & Platforms

Support enterprise workloads including SAP, Oracle Databases, Teamcenter, HPC platforms

Manage and optimize Unix systems: AIX, HP-UX, Solaris

Build and manage IBM NIM, VIOS environments, and storage integrations (GPFS, NFS, iSCSI, Fibre Channel)

Disaster Recovery & High Availability

Design, implement, and test DR/HA strategies for mission-critical systems

Support DR solutions for key platforms including Oracle and Teamcenter

Lead disaster recovery exercises and ensure compliance with RTO/RPO objectives

Core Infrastructure & Security Tools

Engineer and support enterprise services and tooling, including:

DNS, NTP, Satellite

Security & monitoring: Splunk, Rapid7, CrowdStrike, Qualys, Microsoft Defender

Ensure compliance with enterprise security standards and vulnerability remediation

Required Qualifications

7–10 years of hands-on experience in Linux/Unix system administration and engineering

Proven experience managing large-scale enterprise environments (10K+ servers)

Expertise in P1/P2 incident management and root cause analysis

Strong experience with Linux distributions (Red Hat, SUSE, Ubuntu) and Unix systems (AIX, HP-UX, Solaris)

Demonstrated experience in migration projects (Unix → Linux, On-prem → Cloud)

Certifications (Required / Preferred)

Red Hat Certified System Administrator (RHCSA)

Red Hat Certified Engineer (RHCE)

VMware Certified Professional – Data Center Virtualization (2023)

CompTIA Security+

Microsoft Certified: Azure Fundamentals

Technical Skills

Core Platforms & Technologies

Linux (RHEL, SUSE, Ubuntu), Unix (AIX, HP-UX, Solaris)

VMware (vSphere, NSX, vSAN), Nutanix, Dell VxRail

Microsoft Azure (IaaS, Azure VMware Solution), AWS (basic understanding)

HPC platforms, SAP environments

Automation & DevOps

Chef, Ansible, Terraform

Shell scripting (Bash, KornShell), Python

Containerization (Docker, Kubernetes – working knowledge)

Storage & Networking

GPFS, NFS, iSCSI, Fibre Channel

LVM, Veritas Volume Manager

DNS, NTP, PXE

Monitoring & Security

Splunk, Nagios, Rapid7, CrowdStrike, Qualys, Defender

CIS hardening, patching, vulnerability management

Enterprise Tools & Systems

IBM NIM, VIOS, HMC

Active Directory integration, Samba

Satellite, RPM-based systems

SAP, Oracle Database, Teamcenter

Additional Skills

Strong experience in root cause analysis and incident analysis

Expertise in system design, performance tuning, and capacity planning

Knowledge of legacy systems and modernization strategies

Experience with hybrid cloud and multi-datacenter environments

Soft Skills

Strong leadership and stakeholder management skills

Ability to lead cross-functional technical initiatives

Excellent communication in high-pressure incident scenarios

Continuous improvement mindset with focus on automation and reliability

Preferred Experience

Experience supporting 20,000+ server environments

Exposure to Azure Skytap and legacy workload migration

Familiarity with Platform One, SLURM, IBM WebSphere ecosystem

Success Metrics

Reduction in incident recurrence and MTTR

Successful delivery of platform modernization initiatives

Increased compliance and security posture

Improved system availability and performance