SRE with Linux Admin

Role:

SRE with

Linux Location:

Berkeley Heights, NJ Contract Job Summary:

We are seeking an experienced Linux and Windows System Administrator with strong hands-on experience in containerized platforms (Kubernetes, Pivotal Cloud Foundry), databases (My environments, participate in incident response, and ensure platform stability, security, and compliance.

Key Responsibilities:

Operating Systems & Platform Support Administer, support, and troubleshoot Linux (RHEL) and Windows Server environments in Production, DR, and Non-Prod. Perform OS-level monitoring and performance tuning in line with enterprise security guidelines. Container & Cloud Platforms Provide operational support for Kubernetes clusters, including: Cluster access management Certificate updates on ingress/controllers Support Pivotal Cloud Foundry (PCF) environments: App container issues Platform availability and scaling coordination Work closely with application and Dev teams for deployments and incident resolution. Database Support (Infrastructure-level) Support MySQL databases: Basic administration, connectivity troubleshooting Backup/restore support SSL/TLS configuration and validation Support MongoDB at infrastructure and certificate level: MongoDB certificate validation and renewal Coordination with DBAs for schema or data operations SSL Certificate Management Manage SSL/TLS certificate lifecycle across Linux, Windows, Kubernetes, and database platforms CSR generation and validation Certificate renewal, deployment, and verification Key strength enforcement (2048/4096-bit as required) Experience handling client-owned certificates, including reuse of private keys when required. Incident & Change Management Participate in Major Incident (P3/P4) calls, provide technical triage and remediation. Execute changes through format change management processes. Provide post-incident documentation and validation.

Required Skills & Experience Required Skills & Experience:

Mandatory:

8+ years of experience as a Linux/Windows System Administrator Strong hands-on experience with: Linux (RHEL) Windows Server (2016/2019 or later) Kubernetes (enterprise clusters) Pivotal Cloud Foundry (PCF) Experience supporting: MySQL MongoDB Proven experience with SSL/TLS certificate renewal and deployment Strong troubleshooting skills in production environments

Technical Skills:

OpenSSL, key formats (PEM, PFX, JKS) Certificate chains, CA bundles, private key management Basic scripting (Shell, PowerShell, Ansible preferred) Monitoring and logging tools (Splunk or similar) Understanding of security hardening and audit controls