Linux/Unix Systems Engineer

Job Title :Linux/Unix Systems Engineer with Automation Location : Sanjose CA(Onsite from day 1)Rate : 12 +Years of consultantVisa : H1b, GC and USC Job Responsibilities· Build infrastructure-as-code (Ansible, Terraform, Puppet, Chef) version-controlled, peer-reviewed, CI/CD-deployed· Apply security principles (least privilege, defense in depth, zero trust) to system design· Own system hardening baselines and CVE response workflows· Design and enforce compliance-as-code: drift detection, secret detection, automated remediation, and audit trails· Monitor system performance, troubleshoot bottlenecks, and implement optimizations to ensure high availability and reliability· Conduct capacity planning and performance engineering across computers, storage, and network layers· Maintain Git-based workflows for all infrastructure changes — branching, code review, merge pipelines· Build and maintain CI/CD pipelines (GitLab CI, Jenkins, GitHub Actions) for configuration deployment, image builds, and validation· Manage configuration management at scale using Puppet, Chef, or Ansible across heterogeneous environments· Automate everything from provisioning, compliance checks, patching until decommissioning,· Address complex cross-system issues: NFS, kernel, networking, storage, and server hardware· Perform performance engineering: identify bottlenecks, implement measurable fixes, and produce evidence-based root cause analysis· Build observability and synthetic monitoring tooling to detect problems before users report them· Work closely with development, networking, security, and other IT teams to deploy applications, integrate new technologies, and manage project lifecycles· Create and maintain comprehensive documentation for system configurations, architectural decisions, runbooks, and troubleshooting proceduresRequired Skills & Qualifications· 12+ years of extensive hands-on experience in Unix/Linux administration and enterprise infrastructure management.· Strong expertise in automation using Puppet, Chef, Ansible, Terraform· Strong experience with installation, configuration, administration, and support of enterprise infrastructure and operational tools.· Deep understanding of system security hardening, vulnerability remediation, patch management, and access control best practices.· Advanced troubleshooting and root cause analysis skills with the ability to resolve complex technical issues across multiple infrastructure layers.· Solid knowledge of core networking concepts including TCP/IP, DNS, subnetting, routing, and firewall fundamentals.• Strong written and verbal communication skills with the ability to document designs, procedures, and technical recommendations clearly.