| Location | Sunnyvale, CA |
| Salary | $70–$78 Per Hour |
Location: Sunnyvale, CA 94089
Duration: Approximately 6 months
Work Arrangement: Hybrid – Minimum 2 days onsite per week
Compensation: $70–$78/hour W2
Employment Type: W2 (not open to C2C, 1099, or visa sponsorship)
Our client is seeking an experienced IT Infrastructure UNIX Sr Engineer to design, implement, automate, and support enterprise UNIX/Linux infrastructure across physical, virtualized, and cloud environments. This position combines hands-on Linux engineering, DevOps automation, infrastructure lifecycle management, and complex troubleshooting. The engineer will support existing infrastructure while developing new solutions, improving deployment pipelines, and maintaining enterprise security, reliability, and operational standards.
Design, develop, maintain, and support UNIX/Linux operating system CI/CD pipelines for bare-metal servers, VMware ESX environments, and cloud-based Amazon Machine Images (AMIs).
Build, configure, test, and qualify Red Hat Enterprise Linux 9 (RHEL9) on desktop and workstation hardware, including runtimes, modules, and application stacks.
Perform onsite infrastructure installations, system builds, staging, testing, and lab deployments.
Manage the full UNIX/Linux operating system lifecycle, including provisioning, configuration, patching, upgrades, maintenance, and troubleshooting.
Develop infrastructure-as-code and automation solutions using Unix shell, Python, Perl, and GitHub.
Implement and maintain automated deployment workflows using AWX, Ansible Tower, Foreman, and/or Jenkins.
Collaborate with internal teams to establish requirements for operating system builds, deployments, configuration, compliance, and implementation.
Support infrastructure integrations involving networking, storage, hypervisors, identity management, and enterprise applications.
Diagnose and resolve complex infrastructure incidents through root cause analysis, advanced troubleshooting, and reverse engineering.
Develop detailed technical designs, workflow documentation, connectivity diagrams, and operational procedures.
Evaluate infrastructure technologies and recommend solutions that improve scalability, security, reliability, and automation.
Coordinate with infrastructure outsourcing partners responsible for operational support and maintenance.
Bachelor's degree in Computer Science, Engineering, or a related discipline, or an equivalent combination of education and professional experience.
Minimum 5 years of experience in senior UNIX/Linux systems administration and full operating system lifecycle management.
Advanced hands-on administration of enterprise Linux distributions, including RHEL, CentOS, Ubuntu, and/or FreeBSD.
Strong experience developing and maintaining CI/CD pipelines using GitHub, AWX, Ansible Tower, Foreman, and/or Jenkins.
Advanced scripting and automation skills using Unix shell, Python, and Perl.
Experience designing, implementing, testing, and supporting enterprise-scale infrastructure solutions.
Hands-on experience with bare-metal systems, virtualization, and cloud infrastructure.
Strong understanding of networking, network segmentation, firewalls, DNS, NTP, and DHCP.
Experience with enterprise identity and authentication systems, including LDAP, SSSD, Kerberos, SAML, and Active Directory.
Knowledge of cybersecurity standards, operating system hardening, compliance controls, and infrastructure security best practices.
Experience working with outsourced infrastructure operations and support teams.
Strong troubleshooting, documentation, communication, and independent problem-solving skills.
Ability to prioritize competing responsibilities and take ownership of complex technical issues through resolution.
Experience supporting High Performance Computing (HPC) environments.
Knowledge of enterprise UNIX mail server migrations involving Sendmail, Postfix, or Exim.
Experience deploying infrastructure for manufacturing or supply chain operations.
Advanced knowledge