IT Infrastructure UNIX Sr Engineer

BayOne Solutions; Sunnyvale (CA); Hybrid; USD 117,000 - 138,000; Full time

Job summary

BayOne Solutions in Sunnyvale, CA, seeks an experienced UNIX/Linux systems administrator for a 3‑month W2 contract. The role spans full lifecycle management across on-prem and cloud, including bare-metal, virtualization, and container technologies. Hybrid onsite work is expected.

You will design, build, test, and support OS deployments, automation, and security hardening, collaborating with IT stakeholders and outsourcing partners to deliver enterprise-scale solutions.

Qualifications

• Bachelor's in CS/engineering or equivalent.
• 5+ years as senior UNIX/Linux administrator.
• Experience with outsourcing partners.
• Strong CI/CD with GitHub, AWX, Ansible Tower, Foreman, and/or Jenkins.
• UNIX scripting in shell, Python, and Perl.
• Experience designing, developing, implementing, and testing enterprise-scale solutions.
• Hands-on implementing multiple infrastructure operational and management solutions.
• Knowledge of IdM/LDAP/Kerberos/SAML/AD and networking concepts.
• Familiarity with cybersecurity standards and OS hardening.

Responsibilities

• Design, develop, and support UNIX/Linux OS CI/CD for bare-metal and virtualization.
• Network build and qualification of RHEL9 on endpoints.
• Onsite delivery and installations within labs and staging areas.
• Collaborate with internal customers on builds, deployment, and configuration.
• Develop infrastructure as code using shell, Python, and Perl with GitHub.
• Manage automations using AWX, Ansible Tower, Foreman, and Jenkins.
• Evaluate products to meet requirements and objectives.
• Create high/low level designs, workflows, and documentation.
• Troubleshoot and resolve incidents and tickets.
• Integrate with network, storage, hypervisors, and applications.

Skills

Unix/Linux administration

CI/CD processes

Shell scripting

Python scripting

Troubleshooting

Communication

Education

Bachelor's degree in CS/Engineering

Tools

GitHub

AWX

Ansible Tower

Foreman

Jenkins

Kubernetes

Docker

Job description

Job Details

Location: Sunnyvale, CA (Hybrid)

Duration: 3 Months (Possible extension or conversion into permanent)

Pay rate range: $85 – $100/hr. on W2

Type: W2 Contract Role

The role delivers in-depth technical DevOps expertise across the full life-cycle, both within IT and across the organization. The role has the project level expertise to plan, review, evaluate, guide, and deliver all aspects of UNIX/Linux life-cycle management across the enterprise. The role has the technical — hands‑on — expertise to design, develop, build, and test UNIX/Linux operating system management capabilities including owning incidents to satisfactory resolution. The role reports to the IT Architecture Sr Manager within the IT Infrastructure team. The role will be operating within a brownfield environment, in parallel to working on projects that will instantiate greenfield solutions and be responsible for transitional activities. The UNIX/Linux operating systems include, but are not limited to, Red Hat Enterprise Linux (RHEL), CentOS, Ubuntu, and FreeBSD. It is a heterogeneous environment requiring broad knowledge of external identity providers, hybrid on-premises and cloud hosting (bare‑metal, virtualization, Kubernetes, containers) as well as integrations with multiple third‑party SaaS, automation, and management tools.

Responsibilities

• Design, develop, maintain, and support UNIX/Linux operating system CI/CD for bare-metal, ESX virtualization, and AMIs.
• Network build and qualify RHEL9 on end-user desktop/workstation hardware including runtimes, modules, and a full application stack.
• Physical onsite delivery and installations within labs, infrastructure build, and staging environments.
• Engage with internal customers to seek agreement on operating system builds, deployment, installation, configuration, compliance, and implementation.
• Develop infrastructure as code using Unix shell, Python, and Perl scripting in conjunction with GitHub.
• Manage automations using AWX, Red Hat Ansible Tower, Foreman, and/or Jenkins.
• Research the best products and technologies to meet defined requirements and objectives.
• Produce high and low-level design, workflow, connectivity, and procedural documentation.
• Perform in-depth troubleshooting and reverse engineering to support incident/problem tickets.
• Integrate with network, storage, hypervisors, and applications.

Qualifications

• Minimum bachelor’s in a computer science/engineering degree or equivalent combination of education and experience.
• 5 years experience as a senior UNIX/Linux system administrator across the full life-cycle.
• Experience working with an outsourcing partner that operates and maintains the infrastructure.
• Strong CI/CD experience with GitHub, AWX, Ansible Tower, Foreman, and/or Jenkins.
• In-depth UNIX development with shell, Python, and Perl scripting.
• Experience designing, developing, implementing, and testing enterprise-scale solutions.
• Hands‑on implementing multiple infrastructure operational and management solutions.
• All-rounded experience of distributed networks, segmentation/firewalls, IP services (DNS, NTP, DHCP), IdM (Authentication/Authorization), LDAP, SSSD, Kerberos, SAML, and Active Directory.
• Knowledge of enterprise cybersecurity standards, frameworks, and best practices including operating system hardening control sets.
• Ability to independently solve complex problems with the operating system.
• Taking ownership, being self‑sufficient, ability to prioritize workloads, and execute daily tasks.
• Strong communication skills — Written and oral.

Other/Desirable Skills

• Experience with High Performance Computing (HPC) and supporting infrastructure.
• Experience with enterprise UNIX mail server migrations (sendmail, postfix, Exim).
• Experience of infrastructure deployments for manufacturing and supply chain operations.
• In-depth knowledge of Kubernetes platform and Container/Docker implementations.
• Experience in end‑to‑end automated server builds and pipelines.
• Knowledge of enterprise patch management services.
• Understanding of Infoblox would be desirable.