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Senior Systems Administrator - Linux & Windows Expertise

Location:
Union City, CA
Posted:
May 18, 2026

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Resume:

***************@*****.**

m 415-***-****

Alameda, CA 94501

Skills

• Linux Administration

• Systems Architecture

• Server setup and maintenance

• Multiplatform Network Systems

Programming

• Shell scripting

• PHP

• Windows Server Management

• Technical Documentation

• Troubleshooting and Problem

Solving

• Active Directory

• Cloud Services (AWS, Azure)

• Backup and Recovery Solutions

• System Monitoring and

Performance Tuning

• Virtualization Technologies

(VMware, Hyper-V)

• Scripting (Bash, PowerShell)

• Automation Tools (Ansible,

Puppet)

• Security Protocols and Firewalls

• Remote Desktop Support

• User Account Management

• Configuration Management

Tools

• Patch Management

• Device Management and

Inventory Control

• Disaster Recovery Planning

• Endpoint Security

• Database Management

• Team Leadership

• Collaboration Tools

Matthew T. Willman

Career Objective

Seeking Senior Systems Administrator role to utilize extensive experience in Linux and Windows administration and system architecture. Strong history with virtualization apps and services, large-scale data storage solutions, and collaboration with IT teams to enhance company information and computing needs. Expertise in monitoring systems using Datadog, Nagios, and CheckMK, improving overall system performance.

Experience

Professional Job Search - Senior Systems Administrator Oakland, CA

01/2025 - Current

• Completed six-month work sabbatical.

• Developed new skills in systems administration and cloud technologies.

• Addressed and troubleshot issues for various groups to facilitate effective collaboration.

• Studied for AWS certification to deepen expertise in cloud computing and enhance technical proficiency.

Block, Inc. - Senior Systems Administrator (six-month contract) Oakland, CA

07/2024 - 12/2024

• Replaced 100+ hard drives and updated 200+ server OSs, libraries, and security patches, improving overall system reliability and security posture.

• Serviced and fixed 200+ Linux systems across multiple locations, ensuring operational continuity and minimizing downtime.

• Re-imaged 200+ servers with Salt and MAAS, enhancing OS stability and reducing recurring issues.

• Built a Datadog monitoring system for a 500+ Dell computer test rack, enhancing real-time performance insights.

Gladstone Institutes - Senior Systems

Administrator San Francisco, CA

03/2020 - 01/2024

• Built, managed, and maintained Linux and Windows high-performance computing systems for scientific research using Chef and Ansible scripting in Bash for automation.

• Built, managed, and maintained VMWare and HyperV virtual systems.

• Built, managed, and maintained monitoring systems with Nagios and CheckMK for all Linux and Windows systems, ensuring system reliability.

• Managed large-scale Data Storage systems for over 4PB of scientific data

• Developed archive, backup, and restore systems, enabling data recovery support for over 500 users.

• Managed patch, system, and security updates for Linux and Windows systems.

• Customer Service

• Technical Support

• Web Server Management

(Apache, Nginx)

• Compliance and Auditing

• Load Balancing and Network

Traffic Management

• Project Management

Education

01/2008

Bachelor of Science:

Computer Engineering

San Francisco State

University San Francisco, CA

• Relevant courses

• Computer hardware systems

and architecture

• Programming languages, Shell

Scripting, C, C++, Java, and

Assembly

• Operating systems analysis and

programming

• Computer communication

networks

• Digital systems analysis

Certifications

• Certification for UNIX

administration and C, C++

programming, Pace University,

1999

• Won APPA national award for

innovative practices

Websites, Portfolios,

Profiles

• https://www.linkedin.com/in/

mwillman/

• Collaborated with 20+ scientists to enhance data collection processes, improving tracking and retrieval efficiency in data system. Salesforce - Senior Site Reliability Engineer

San Francisco, CA

04/2018 - 03/2020

• Monitored over 40,000 production Linux servers for any problems that affected customer accessibility and usability

• Coordinated troubleshooting for 100+ production incidents, diagnosing and resolving issues across systems

• Led cross-functional teams to maintain a stable production environment for 10,000+ users

• Developed data recovery systems, restoring complete or partial data for 500+ customers monthly.

• Coordinated with Argus and Nagios teams to automate site reliability procedures, enhancing system uptime by implementing new monitoring tools. PLOS.org - Linux Systems Administrator

San Francisco, CA

01/2014 - 04/2018

• Oversaw operations of a 200+ server data center, managing Linux, VMware, Nginx, and firewalls for up to 100,000 daily user requests

• Established and managed 3 monitoring systems—Check-MK, Nagios, and Grafana

—for tracking server uptime, resource utilization, and hardware and systems performance, enhancing overall system reliability.

• Provided on-call support for 24/7 production systems, addressing critical incidents and minimizing downtime.

• Maintained and repaired 200+ Linux production systems, including DNS, DHCP, and VPN, across multiple data centers.

Blinkx.com - Systems Administrator

San Francisco, CA

05/2011 - 12/2013

• Oversaw 3 large data centers running Linux servers for optimal performance.

• Implemented Cacti and Nagios to monitor server performance and alert on system outages.

• Managed and maintained Linux systems across 3 data centers for optimal performance.

NEW YORKER MAGAZINE - Systems Administrator

New York, NY

04/1998 - 05/2000

• Built and managed a 100-node data center with Solaris 8 and Red Hat Linux, supporting DNS, DHCP, web, email, and data storage systems.

• Managed setup, troubleshooting, and repair for 200+ hardware and software systems across the organization.

.#HRJ#f5a66c31-c281-41e6-877d-7b7489235142# Honorable Discharge - U.S. Army



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