System (Linux) Admin

Woongjin•San Jose, CA

21h•Onsite

About The Position

WOONGJIN, Inc. is seeking a skilled System (Linux) Administrator to join our rapidly growing team. This role involves engineering systems administration-related solutions, installing and configuring servers, managing virtualization platforms, storage, and network equipment. You will be responsible for maintaining system security, applying patches, monitoring system performance, and providing Tier III support. The position requires a high level of expertise in VMware, Jenkins, GIT, and DevOps tools, along with strong Linux administration skills and experience with shell scripting, system inventory, and network equipment management. The ideal candidate is a self-starter, able to multitask, and communicate effectively with both technical and non-technical personnel. This role also involves physical tasks such as lifting and moving servers.

Requirements

Especially high skill level of VMware admin and management.
Including, but not limited to, 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.
5+ 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.
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

Linux+
CompTIA Linux+
Red Hat Certified System Administrator (RHCSA)
Red Hat Certified Engineer (RHCE)
Cisco equipment management experience

Responsibilities

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.
Manage virtualization platforms (VMware, KVM, and other).
Manage storage (Netapp, Dell/EMC, PureStorage, and others).
Support Infra automation tools (ansible) and Foreman deployment management.
Manage system inventory system (GLPI).
Manage network equipment (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 operational and development systems (Red Hat Linux, Windows, VMWare, Apache).
Report Security Patch compliance.
Perform daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes.
Review 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.
Perform regular file archival and purge as necessary.
Create, change, and delete user accounts per request.
Provide Tier III/other support per request.
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.
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.
Provide after-hours and weekend support and/or alternative work schedules as required.