System (Linux) Admin

Woongjin, Inc•San Jose, CA

23h•$80,000 - $85,000•Onsite

About The Position

WOONGJIN, Inc. is seeking a skilled System (Linux) Administrator to join our rapidly growing team. This role involves the engineering of systems administration-related solutions, installation and configuration of servers and hardware, and maintenance of various infrastructure components. The ideal candidate will have a high skill level in VMware administration and management, along with experience in tools like Jira, Confluence, Jenkins, GIT, and other DevOps tools. Responsibilities include managing Atlassian Jira and Confluence servers, ensuring system security through patch management and monitoring, performing daily system monitoring and backup operations, and providing Tier III support. The role also requires maintenance of system standards, performance tuning, and occasional after-hours support.

Requirements

High skill level of VMware admin and management
Experience with Jira, Confluence, Jenkins, GIT, DevOps tool administration
Systems Administration/System Engineer certification in Linux+, e.g., CompTIA Linux+, Red Hat Certified System Administrator (RHCSA), or Red Hat Certified Engineer (RHCE) preferred
Network equipment management, Cisco equipment preferred
7+ years of system administration experience in Linux environments
Proficient in tasks such as shell scripting, creating corn jobs, analyzing log files, managing user accounts and groups, configuring iptables, and setting up mail services.
Maintain Atlassian Jira and Confluence servers and provide user support
Proven ability to multi-task.
Independent, self-starter.
Ability to effectively communicate (verbal and written correspondence) in a professional and courteous manner with technical and non-technical personnel.
CompTIA Security+ (SY0-301) or other DoD 8570.1 Workplace Improvement Plan IAT Level II compliant certification required (or equivalent experience).
Familiarity with web-based technologies, including but not limited to, reverse proxy servers, SSL certificate configuration, three-tier architecture, and service oriented architecture, enterprise service bus, http, and differences between browsers.
Able to lift 50 lbs.
Able to move servers to and from main DC to the colocation and labs
Install new hardware or migrate existing servers (rack and stack)

Nice To Haves

VMware, KVM, and other virtualization platforms
Netapp, Dell/EMC, PureStorage, and other storage management
Ansible for infra automation
Foreman for deployment management
GLPI for system inventory
Cisco, Mellanox, and other network equipment management
Red Hat Linux (Centos, Ubuntu…etc.), Windows 2008/2k8R2/2k12, VMWare, and Apache web services
Jira, Confluence, Jenkins, GIT, DevOps tool administration
CompTIA Linux+, Red Hat Certified System Administrator (RHCSA), or Red Hat Certified Engineer (RHCE)
Cisco network equipment
CompTIA Security+ (SY0-301) or other DoD 8570.1 Workplace Improvement Plan IAT Level II compliant certification

Responsibilities

Atlassian Jira and Confluence server configuration, user management, user support
Engineering of systems administration-related solutions for various project and operational needs.
Install new/rebuild existing servers and configure hardware, peripherals, services, settings, directories, storage, etc. in accordance with standards and project/operational requirements.
Virtualization platform (VMware, KVM, and other) management
Storage management (Netapp, Dell/EMC, PureStorage, and others)
Infra automation tools(ansible) support
Foreman deployment management
System inventory system (GLPI) management
Network equipment management (Cisco, Mellanox, and others)
Install and configure systems which support infrastructure and/or R&D activities.
Develop and maintain installation and configuration procedures.
Configure/maintain storage equipment and troubleshoot with vendors.
Configure/install EDA tools, FlexLM licenses, and troubleshoot software tool issues.
Contribute to and maintain system standards.
Contribute to and maintain security posture of the systems
Research and recommend innovative, and where possible, automated approaches for system administration tasks. Identify approaches that leverage resources.
Install and maintain security patches on the operational and development system, which includes but is not limited to, Red Hat Linux (Centos, Ubuntu…etc.), Windows 2008/2k8R2/2k12, VMWare, and Apache web services.
Report Security Patch compliance.
Perform daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, reviewing system and application logs, and verifying completion of scheduled jobs such as backups.
Perform regular security monitoring to identify any possible intrusions.
Perform daily backup operations, ensuring all required file systems and system data are successfully backed up to the appropriate media, recovery tapes or disks are created, and media is recycled and sent off site as necessary.
Perform regular file archival and purge as necessary.
Create, change, and delete user accounts per request as necessary.
Provide Tier III/other support per request from various constituencies. Investigate and troubleshoot issues.
Repair and recover from hardware or software failures. Coordinate and communicate with impacted constituencies.
Apply OS patches and upgrades on a regular basis, and upgrade administrative tools and utilities. Configure/add new services as necessary.
Manage existing and/or deploy new instances of Jirra, Git, LDAP, Jenkins, VMWare environments.
Upgrade and configure system software that supports infrastructure applications or Asset Management applications per project or operational needs.
Maintain operational, configuration, or other procedures.
Perform ongoing performance tuning, hardware upgrades, and resource optimization as required. Configure CPU, memory, and disk partitions as required.
After hours and weekend support and/or alternative work schedules are required at various points in the year