Mark Marquez

Network and Systems Administrator

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Certified IT with over five years of experience in IT infrastructure, cybersecurity, and SaaS solutions—with proven success in optimizing workflows, enforcing security standards, and driving IT process improvements to support business goals.


Work Experience

Network and Systems Administrator

Phoenix Management Solutions | San Antonio, TX | April 2024 - February 2025

Managed and optimized the IT infrastructure for eight trucking companies across 25 offices for 170 employees.

  • Deployed multi-layer security controls (IAM, MFA, EDR, backups, phishing training) to comply with Cybersecurity Insurance requirements, reducing security incidents from several per year to near zero.
  • Migrated company data from on-prem NAS to SharePoint, improving remote access and security. Managed O365 email, Teams, SharePoint, and Adobe licensing.
  • Acted as primary liaison to leadership, coordinating cross-functional projects, managed 100K annual IT budget under finance’s guidance and approval.
  • Led migration to Ultatel VoIP, factory-reset and provisioned Polycom phones, reducing overhead costs. Assigned phone extensions and installed mobile apps for seamless remote communication.
  • Provisioned laptops and desktops for all employees, ensuring compliance with finance and operations approval. Replaced aging devices and enforced cybersecurity measures (RMM, EDR, Backups, Encryption).
  • Designed Ubiquiti network infrastructure with 4G/LTE failover, improving uptime from ~95% to 99% across critical sites. Further enhanced to include coverage across all sites in collaboration with the IT MSP.
  • Implemented PowerShell, Python, and Bash scripts through remote management tools to automate IT processes for onboarding, installs, and routine tasks, reducing manual workload by 5–10 hours per week.
  • Built out RMM infrastructure and installed remote agents company-wide. Deployed Python, PowerShell, and Bash scripts, cutting workloads by 5–10 hours per week.
  • Provided technical support for TMS dispatch software, coordinating with GTG (TMS provider), field operations, and customer teams to resolve EDI and dispatch issues.
  • Email Domain Management: Email hosting and troubleshooting, managed SSL certificates, updated and maintained DNS records. Implemented DKIM and DMARC for additional email security.

Systems Administrator

Phoenix Management Solutions | San Antonio, TX | September 2023 - April 2024

IT Technician

Phoenix Management Solutions | San Antonio, TX | November 2022 - September 2023

Service Desk Specialist

Digital Hands | Remote | August 2021 - November 2022

Provided Tier 1 & Tier 2 support at an IT MSP for over 300+ Holiday Inn (IHG) Hotels throughout the US and Canada, earning company-wide recognition for high-quality service and rapid resolution times.

  • Developed PowerShell CLI scripts to streamline account lookups and password resets, increasing ticket resolution efficiency by 80%.
  • Administered and managed Windows Server environments, handling account provisioning, password resets, GPO configurations, and remote desktop support.
  • Installed and configured Active Directory on Windows Servers, ensuring proper domain controller setup, group policies, and role-based access control. Used pre-built PowerShell scripts to reduce AD install times by 40%.
  • Added company workstations to the server’s domain and applied correct network subnet as needed, ensuring consistent user authentication and security policies.
  • Conducted pre-installation network scans for post-refresh Active Directory installations, performing MAC device lookups to identify and flag unapproved devices.
  • Resolved Oracle PMS system performance issues by restarting required services and verifying correct server-client communication.

IT Specialist (Contract)

Southwest Regional Texas Advisory Council (STRAC) | San Antonio, TX | May 2021 - August 2021

Part of the IT helpdesk support team for COVID-19 testing sites across Pennsylvania, Texas, and Seattle, ensuring seamless technical operations for healthcare administrators and promptly providing test results to test takers.

  • Automated ticket creation process through Python (Selenium) scripts for web-browser automation in the Jira ticket system, streamlining incident management and improving service desk efficiency.
  • Collaborated with Tier 2 & Tier 3 teams to resolve SQL database issues, escalating incidents efficiently with clear communication to ensure minimal downtime for test result operations.
  • Enhanced documentation for Tier 1, refining standardized troubleshooting procedures that accelerated response times.

PC Technician (Contract)

Intech Southwest Services | San Antonio, TX | April 2021 - May 2021

Worked with Intech employees and fellow contractors to provide extra bandwidth, repaired and upgraded over 500 Chromebooks and laptops for Northside Independent School District (NISD) students and staff.

  • Disassembled, diagnosed, and replaced key hardware components for laptops and Chromebooks, including screens, keyboards, touchscreens, touchpads, batteries, network cards, cameras, speakers, and storage drives.
  • Ensured functionality compliance with district IT policies, validating hardware functionality and proper software performance before deployment.
  • Re-installed operating system images as needed to ensure seamless device performance.

PC Technician (Contract)

Pit Crew IT Services | San Antonio, TX | February 2021 - March 2021

Configured and deployed laptops for COVID-19 vaccination sites, ensuring seamless remote access and secure connectivity.

  • Set up VPN profiles, user credentials, and network configurations via automated imaging, allowing rapid deployment to multiple locations.
  • Applied system and security updates to ensure compliance with state-mandated data protection standards.

Field Support Technician (Contract)

LA County Registrar | Los Angeles, CA | October 2020 - November 2020

Maintained election equipment at voting booths in Lancaster, CA, ensuring 100% uptime during early voting and election day for the 2020 U.S. Presidential Election.

  • Monitored and troubleshot critical election infrastructure, including voting stations, iPad check-in systems, printers, and power backups.
  • Used proactive maintenance to keep wait times between 0-2 minutes throughout the election.
  • Ensured secure and functional election equipment to facilitate a smooth voting process.

Data Analyst Fellow (Apprenticeship)

SharpestMinds | Remote | April 2020 - August 2020

Developed Python/SQL projects to uncover customer trends and insights under the guidance of Ilya Goldin, PhD.

  • Developed a Python-based web scraper using BeautifulSoup and Selenium to track companies receiving new venture funding.
  • Analyzed transaction history & customer demographics to identify top-selling products and high-value customers.
  • Built interactive data visualization dashboards using Tableau, Matplotlib, and Seaborn.
  • Designed an ETL pipeline to clean, transform, and load structured/unstructured data from APIs, CSV files, and databases into a centralized data repository.
  • Applied machine learning techniques such as classification and regression models to forecast sales trends based on historical transaction data.

SaaS Sales Experience

OnePoint HCM, Intellect, BlackLine, CareerArc | Los Angeles, CA & Remote | September 2015 - February 2020

Led in cold-calling and conversion rates by collaborating with teams of stakeholders (CXO, IT, Accounting, Manufacturing) to identify gaps in technology while aligning SaaS solutions that would help maximize current assets and emerging technologies

  • Increased monthly on-site demos from marketing leads by 300% (2-to-6 monthly). (OnePoint HCM)
  • Optimized SDR playbook for outbound prospecting and increased overall outbound pipeline by 200% (10%-to-30%) (Intellect)
  • Brought in 300% more monthly pipeline value than average mid-market BDR with only 1/5th the accounts. (BlackLine)
  • Created strategy for high-volume lead sourcing technique that increased team’s monthly leads by 300% (15-to-45 MQLs)

Research Lab Assistant

UC Irvine, Visual Perception and Neuroimaging Lab | Irvine, CA | June 2012 - June 2014

Assisted in fMRI data processing for neuroscience research under the guidance of Emily Grossman, PhD.

  • Developed and implemented MATLAB scripts for a senior honors thesis on short-term visual memory.
  • Conducted human participant studies and ensured compliance with IRB research protocols.
  • Analyzed cognitive patterns of perceptual memory as part of the Psychology Honors Program.
  • Prepared research presentations and presented at 2014 Undergraduate Research Symposium.

Projects

Ansible & Kubernetes for IT Support

Personal Project | 2025

Building an automated IT infrastructure support system leveraging Ansible and Kubernetes to streamline deployment, configuration management, and system orchestration. The project aims to reduce manual intervention in IT operations and ensure consistency across environments. (https://github.com/marky224/RHEL-Ansible-K8s-IT-Support)

Enterprise IT Modernization & Security Compliance

Phoenix Management Solutions | 2023 - 2024

Led IT modernization efforts by migrating on-prem NAS to SharePoint, optimizing cloud infrastructure, and enforcing cybersecurity policies. Implemented IAM, MFA, EDR, DKIM, and DMARC to enhance security compliance and reduce cyber threats.

Automation & Network Resiliency Enhancement

Phoenix Management Solutions | 2022 - 2023

Developed PowerShell, Python, and Bash scripts to automate IT processes, reducing manual workload by 5-10 hours per week. Designed and deployed Ubiquiti-based networking with 4G/LTE failover, improving uptime from 95% to 99% across critical business sites.

IT Helpdesk & Automation for Service Desk Operations

STRAC & Digital Hands | 2021 - 2022

Developed Python Selenium scripts to automate ticket creation in Jira, significantly reducing response times for healthcare administrators managing COVID-19 testing sites. Implemented PowerShell CLI automation at Digital Hands to streamline Active Directory account lookups and password resets, increasing ticket resolution efficiency by 80%.

Data Analytics Consulting - Predictive Sales & Customer Segmentation

KPMG | 2020

Developed a machine learning model to optimize marketing efforts by predicting customer sales patterns. Analyzed transaction history and demographics to enhance customer targeting and maximize ROI.

Web Scraping & Data Pipeline - US Venture-Funded Companies

VCNewsDaily.com | 2020

Engineered a web scraping solution using BeautifulSoup and Selenium to aggregate real-time funding data on US-based venture-backed companies. Designed an ETL pipeline to store and query data in SQL databases, enabling finance, research, and sales teams to track investment trends and emerging startups.

Capstone Project - LA County Data-Driven City Benchmarks

Coursera | 2020

Designed a data-driven clustering model to help LA County officials prioritize key city benchmarks, such as education and healthcare. Leveraged statistical analysis and machine learning to evaluate how specific benchmarks correlate with overall city success, enabling budget optimization and strategic decision-making.

'Predictable Prospecting' Training - Data-Driven Sales Optimization

CareerArc, BlackLine | 2015, 2017

Completed sales training by Marylou Tyler, former VP of Sales at Salesforce and author of 'Predictable Prospecting.' Applied methodologies for structured outbound sales strategies, developed automated prospecting sequences, and optimized lead qualification through data-driven decision-making.

Senior Honors Thesis - Cognitive Science of Face Recognition

UC Irvine | 2014

Conducted neuroscience research on perceptual-memory mechanisms for facial recognition. Developed MATLAB scripts to analyze fMRI data and examined how repeated visual stimuli enhance subconscious learning. Presented findings on short-term perceptual memory at the UC Irvine Undergraduate Research Symposium.