Reginald Robinson
Woodbridge,VA
Summary
Accomplished Senior Infrastructure Engineer with a proven track record at ASRC Federal, specializing in Active Directory Administration and Group Policy Management. Demonstrated expertise in enhancing security protocols and automating tasks using PowerShell, achieving significant operational efficiencies. Renowned for leadership qualities and collaborative efforts, consistently ensuring system integrity and compliance.
Overview
12
12
years of professional experience
1
1
Certification
Work History
Senior Infrastructure Engineer
ASRC Federal
Reston, VIrginia
11.2021 - Current
- Manage the daily operations of an enhanced security on-premises Active Directory domain, ensuring optimal performance and security compliance.
- Monitor AD replication processes, troubleshoot discrepancies, and resolve replication issues to maintain seamless domain synchronization.
- Develop, enforce, and manage complex Group Policy Objects (GPOs), addressing inheritance, precedence, and enforcement challenges.
- Utilize PowerShell and Visual Studio Code to automate administrative tasks, streamline workflows, and improve system efficiency.
- Create and update comprehensive Standard Operating Procedures (SOPs) to support operational consistency and knowledge sharing.
- Collaborate with security teams to implement and maintain strict access controls, ensuring that AD security policies align with regulatory requirements.
- Lead training sessions, and provide technical guidance to junior engineers on AD best practices and advanced troubleshooting techniques.
Cloud Sustainment Engineer
Insight Global
Atlanta, Georg
10.2020 - 10.2020
- Administered a multi-domain AD infrastructure, including user account management, organizational unit (OU) design, and GPO deployment.
- Resolved AD related incidents, minimizing downtime and improving user experience.
- Automated repetitive tasks using advanced PowerShell scripts, achieving a 30% reduction in manual effort.
- Conducted root cause analysis for replication and connectivity issues, implementing long-term solutions to prevent reoccurrence.
- Designed and implemented group policies to enforce corporate security standards, achieving a consistent compliance rate across domains.
- Documented technical processes and updated operational guides to support knowledge retention and onboarding.
Systems Engineer
The Prospective Group
Fairfax, VA
01.2019 - 09.2020
- Maintained Active Directory environments, ensuring high availability and integrity of directory services.
- Assisted in migrations, upgrades, and patch management for Windows Server environments.
- Configured and managed Group Policy Objects to control access permissions, and enforce security policies.
- Supported cross-functional teams by providing AD expertise during project implementations and audits.
- Developed and maintained scripts to improve operational efficiency, and reduce response times.
Senior Systems Engineer
CKA LLC
Sterling, VA
04.2015 - 12.2018
- Created and enforced Group Policy objects (GPOs) to standardize user and device settings across the organization, enhancing security compliance and user experience.
- Headed dedicated organizational units (OUs) within the DISA AD, created, and configured users, groups, and group policy objects.
- Monitored and managed patch deployments, ensuring all systems were up to date and secure.
- Accomplished tasks associated with the distributed filesystem (DFS), changed access control lists (CACLS), access control lists (ACLs), drive shares, and NTFS permissions to ensure user access to distributed file servers.
- Administered both virtual and hybrid, and on-prem infrastructures, maintaining servers and workstations, ensuring seamless integration and operations.
Technical Systems Advisor
General Dynamics IT
Fairfax, VA
01.2013 - 01.2014
- Administered AD domains, including account lifecycle management, access controls, and security policy enforcement.
- Resolved AD replication issues, ensuring consistent and reliable directory updates across all domains.
- Designed and implemented new Group Policies to support evolving security and operational requirements.
- Utilized PowerShell scripts to automate repetitive tasks and streamline directory administration.
- Authored detailed SOPs, and provided training sessions to enhance team proficiency in AD management.
Education
Bachelor of Science - Computer Information Systems
Indiana Institute of Technology
Fort Wayne, IN05-2002
Skills
- Active Directory Administration
- Group Policy Management (GPO)
- PowerShell Scripting & Automation
- Enhanced Security Protocols
- AD Replication Monitoring & Issue Resolution
- Standard Operating Procedures (SOP) Development
- Windows Server Administration
- Incident and Problem Management
- Technical Documentation
- Team Leadership & Collaboration
- Operating Systems: Windows Server 2016/2019/2022
- Tools: PowerShell
- Visual Studio Code
- AD DS
- Azure AD Connect
- Protocols: LDAP
- Kerberos
- DNS
- Security: Multi-Factor Authentication (MFA)
- Role-Based Access Control (RBAC)
- Enhanced AD Security Practices
- Scripting Languages: PowerShell
- Batch
Affiliations
- Member, (ISC)²
- Member, Microsoft IT Pro Community
Certification
- Certified Information Systems Security Professional
- Azure Solutions Architect Expert
- AWS Certified SysOps Associate
- Microsoft Certified Developer Associate
Accomplishments
- Reduced AD replication issue resolution time by 40% through proactive monitoring and streamlined troubleshooting processes.
- Automated repetitive AD management tasks, resulting in a 25% improvement in operational efficiency.
- Designed a comprehensive GPO structure for enhanced security across a 5,000+ user environment.
- Developed SOPs that increased team adherence to best practices and reduced knowledge gaps during handovers.
References
References available upon request.
Timeline
Senior Infrastructure Engineer
ASRC Federal
11.2021 - Current
Cloud Sustainment Engineer
Insight Global
10.2020 - 10.2020
Systems Engineer
The Prospective Group
01.2019 - 09.2020
Senior Systems Engineer
CKA LLC
04.2015 - 12.2018
Technical Systems Advisor
General Dynamics IT
01.2013 - 01.2014
- Certified Information Systems Security Professional
- Azure Solutions Architect Expert
- AWS Certified SysOps Associate
- Microsoft Certified Developer Associate
Bachelor of Science - Computer Information Systems
Indiana Institute of Technology
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