Active Directory Systems Engineer

KHALED CHEMLI

Senior Systems Engineer

******.******@*******.*** • 404-***-****

Atlanta, Georgia

Summary

Senior-level IT professional adept at designing, implementing, and maintaining complex enterprise systems. Analytical professional skilled at monitoring protocol compatibility, performing system tuning, and providing recommendations for improvement. Accomplished at developing integrated solutions and solving highly complex technical and business issues.

Education

Automation & Electrical Engineering

Institute of Technology, Algiers

CompTIA A+ Certified

Microsoft Certified Professional

Areas of Expertise

Network Administration

Architecture Development

System Integration

System Upgrades

Data Migration

Cloud Computing

Project Management

Diagnosis/Troubleshooting

Performance Analysis

Relationship Management

Organizational Leadership

Technical Documentation

Complex Problem Solving

Strategic Planning & Execution

Cross-Functional Team Work

Vendor Management

Contract Negotiations

Professional Training

Subject Matter Expert (SME) on Azure Active Directory

Microsoft Configuration & Troubleshooting Windows Server 2012/2016/2019 Active Directory

Exchange Server 2013/2016 Administration, Microsoft Technology Center

Cisco Systems Network Associate CCNA Course

Alien Vault USM Anywhere Deploy, Configure & Manage (ANYDC)

Technical Proficiencies

SAN Storage, IBM/HP Blade Systems, VMware vSphere/Hyper-V, LAN/WAN/NOC Administration, Microsoft Exchange Server, Active Directory, Microsoft Azure Fundamentals, Office 365, Google Apps, TCP/IP Configuration, Cisco Switches/Routers, Firewall/Spam Filter, System Backup/Recovery, Cluster & Load Balancing, Disaster Recovery, Business Continuity.

Career Experience

Vaco Enterprise LLP, Brentwood, TN 10/2022 – 03/2024

Active Directory Engineer

Conducting thorough assessments of existing Active Directory environments to identify

dependencies, risks, and potential issues prior to migration.

Deploying domotz network discovery tool to monitor and gather all assets on the network in order to prepare each device for transition.

Validating with key business users prior to data migration in production to ensure that information

has been correctly transported and logged.

Designing and implementing migration strategies tailored to the unique requirements of each site, ensuring minimal downtime and maximum data integrity.

Collaborating with cross-functional teams, including local site IT, system administrators, network engineers, and security specialists, to coordinate migration activities and resolve technical challenges.

Managing and maintaining Quest Migration Manager for AD on remote servers with multiple sites.

Migrating 1000s of AD users, groups, end-user devices, peripherals, servers, applications, and medical networking equipment onto existing centralized active directory domain.

Conducting pilot testing and execution of remote migration processes.

Diagnosing and troubleshooting problems that come up throughout the migration process.

Providing technical support for users after migration and deployment, and creating processes and documentation for the migration and QA of computers.

Conducting post-migration testing and validation to verify system and data integrity.

Producing comprehensive documentation, including migration plans, configuration guides, and post migration audits to retire old legacy systems.

Beacon Hill Staffing Group, Atlanta, GA 02/2021 – 03/2022

Active Directory Engineer

Reviewed and recommended options to improve the effectiveness of the global AD infrastructure; researched, planned, executed, and migrated over 50 Domain controller from 2008/2012 to Server 2019 & 2016 Domain Functional Level.

Implemented and Maintained AD infrastructure as a service in the Microsoft Azure cloud platform, Included Azure AD Connect for directory synchronization, identity access management,

and monitoring the health of Azure resources.

Created and maintained system documentation for domain technologies, including installation, configuration, and appropriate troubleshooting steps.

Performed root cause analysis and provided guidance to technical leadership regarding future issue prevention.

Maintained all infrastructure services contained in and related to the Active Directory infrastructure.

Planned and designed Group Policy Objects to ensure compliance with company policies for servers and user end-point devices.

Collaborated with Corporate Security and Risk Management teams as well as an external cyber security firm to remediate systems infected by a ransomware attack.

Aldridge Pite, LLP, Atlanta, GA 10/2017 – 03/2020

Senior Systems Administrator

Delivered on-site high-level support for corporate-wide IT infrastructure related issues; functioned as Senior Systems Administrator for a large national US law firm.

Executed performance tuning; ensured assigned systems were engineered, configured, and optimized for maximum functionality and availability.

Delivered comprehensive, on-site high level support for corporate-wide IT infrastructure.

Reduced single points of failure and improved system uptime to 99% availability (up from previous high of 95%) through the implementation of innovative solutions.

Reduced manual labor by approximately 40 hours a week by automating daily administrative tasks and reporting.

Designed architecture and managed the implementation and maintenance of Windows 2008/2012/2016 server environment, including Active Directory, DNS, GPO, DFS, FTP, SQL, WSUS, CA, Skype for Business, MS Exchange 2016 clustering and load balancing.

Migrated and consolidated a multi-domain AD infrastructure to one domain for 1100+ users using Binary Tree migration tool.

Administered VMware vSphere ESXi 6.7 vCenter with 12 hosts, 4 clusters across two data centers with 300 guests. Revamped VMware environment, thus improving performance and stability.

Collaborated with Security Team on reporting & remediation, performance tuning, hardening concepts, system assessments, and security vulnerabilities using a variety of monitoring security tools, such as Nessus Core, Qualys & AlienVault USM to assist in continuous security compliance.

NBIS, Atlanta, GA 03/2017 – 05/2017

IT Consultant/Contractor

●Coordinated and executed the migration of key systems from on-premises hosting to Amazon Web Services; achieved 100% availability and reduced infrastructure cost by 10%.

●Served as the administrator and source of high-level support for Office 365 and MS Exchange within a hybrid environment.

Randstad, USA, Atlanta, GA 01/2000 – 01/2017

Senior Systems Administrator

Migrated 6000+ users from MS Exchange on perm to Gmail Google Apps on the cloud, reducing overall yearly saving cost by 30%.

Established a Server Efficiency and Consolidation program, saving the firm over $500,000 in operating expenses as the Project Lead for Data Center Virtualization.

Designed the architecture and oversaw the deployment and maintenance of Windows 2003/2008/2012 Server environment, including Active Directory, GPO, DNS, DHCP, FTP, SQL, WSUS, CA, MS clustering, and load balancing.

Increased team productivity and automated repetitive tasks by using batch files, PowerShell, and VBScript.

Conducted diverse configurations, set up and configured Virtual environment on IBM Blade center using VMware ESXi with Fiber attached SAN, Strong knowledge of VMware vSphere infrastructures, including vCenter, High Availability (HA), vMotion, DRS, and DR Scenarios.

Managed 400TB of storage solutions that supported multiple connectivity options, such as FC-SAN, iSCSI, NFS NAS, and internal storage. Migrated 200 physical servers to virtual and managed the virtual environment comprised of 18 hosts and 400 VM’s.

Led Wintel server team, orchestrated data center move to AT&T Colocation. Coordinated detailed equipment inventory, and planned the consolidation and decommissioning of server hardware.

Worked with IT teams, vendors, and application owners to create a detailed data center shutdown and startup plan.

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