Summary
Overview
Work History
Education
Skills
Certification
Timeline
Generic

Dennis Clarke

System Administrator
Bayonne

Summary

Technology-inclined professional possesses strong troubleshooting capabilities and customer-oriented attitude. Experienced in providing network and software support to users and developing and implementing technical solutions. Adept at analyzing system performance and security to drive optimal user experience.

Overview

8
8
years of professional experience
2
2
Certifications

Work History

IT Support Specialist

Deledao
08.2024 - Current
  • Administer and maintain Windows Active Directory environments, including creating and managing user and group accounts, implementing and troubleshooting Group Policy Objects (GPOs), and ensuring secure authentication and access across multiple organizational units (OUs).
  • Manage and secure Google Workspace for Education and Enterprise environments, including configuring user provisioning, organizational structure (OUs), application access, and enforcing security features such as 2-step verification, data loss prevention (DLP), and access policies.
  • Deploy and manage proxy configurations to client devices using MDM solutions (e.g., Jamf) and virtual machines, ensuring proper web filtering, compliance with network policies, and secure browsing environments across large-scale device fleets.
  • Reproduce and validate technical issues reported by users in isolated virtual environments, identifying whether root causes are due to product-side bugs, configuration issues, or external variables, and documenting reproduction steps for developers and QA teams.
  • Collaborate with software development teams to escalate product bugs and recommend feature enhancements, contributing to product stability and improved user experience by translating frontline feedback into actionable development tasks.
  • Train and onboard new technical support staff, delivering hands-on sessions covering troubleshooting processes, product functionality, communication standards, and escalation procedures to ensure team-wide consistency and readiness.

Linux System Administrator

Pro-Core Plus
01.2022 - 07.2024
  • Automated various stages of the onboarding process using Bash scripts, integrating with HR databases and system directories to ensure new employees had timely access to required systems, reducing manual administrative tasks and improving the onboarding experience.
  • Oversaw the lifecycle management of virtual machines, ensuring efficient allocation and utilization of resources. Implemented automation tools to manage VM deployment, monitoring, and maintenance, significantly improving system uptime and performance.
  • Set up and managed monitoring, logging, and alerting systems to proactively identify and address potential security threats and system issues.
  • Facilitated regular team meetings and technical discussions, encouraging knowledge sharing and collaborative problem-solving. Implemented a systematic approach to track and resolve system issues, resulting in improved team efficiency and reduced incident response times.
  • Conducted regular security assessments and audits to ensure compliance with security policies and standards.

Real Estate Portfolio Manager

Wainco Realty
06.2017 - 12.2021
  • Developed and maintained advanced Excel models and dashboards to analyze rental market trends, forecast cash flows, and evaluate investment opportunities across a portfolio of residential and commercial properties, enabling informed decision-making on acquisitions and lease structuring.
  • Managed accounts receivable/payable and vendor invoicing using cloud-based accounting platforms (e.g., QuickBooks), ensuring accurate tracking of financials, timely payment processing, and clear audit trails for over 50 vendor relationships.
  • Collaborated with attorneys and real estate brokers via secure digital platforms (e.g., DocuSign, Google Workspace) to coordinate legal documentation, due diligence, and deal execution, minimizing delays and ensuring compliance with all regulatory and contractual obligations.
  • Monitored property-level profitability by tracking monthly rent collections, operating expenses, and capital expenditures, using spreadsheet automation and reporting tools to flag negative cash flow trends and recommend cost-saving measures or rent adjustments.
  • Led coordination with internal staff and third-party vendors, implementing shared task management systems to improve communication, reduce downtime for property maintenance, and maintain high tenant satisfaction across the managed portfolio.

Education

Bachelor of Science - Digital Marketing

New Jersey City University
Jersey City, United States
05.2001 -

Skills

Proficiency in Linux Command Line

Cloud Applications

Network Configuration

Virtualization and Containerization

Mobile Device Management

Cross-team Collaboration

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Certification

Red Hat Certified System Administrator

Timeline

Microsoft Azure Administrator 104

05-2025

IT Support Specialist

Deledao
08.2024 - Current

Red Hat Certified System Administrator

07-2024

Linux System Administrator

Pro-Core Plus
01.2022 - 07.2024

Real Estate Portfolio Manager

Wainco Realty
06.2017 - 12.2021

Bachelor of Science - Digital Marketing

New Jersey City University
05.2001 -

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