Dexter Walker
Johns Creek,Georgia
Summary
Senior Systems Engineer with 15+ years of experience specializing in the design, implementation and administration of IT Infrastructures, virtualization environments, Storage Area Networks, Data Center Operations, Backup and Recovery, Windows Server Management, Cloud Computing, and Infrastructure Security.
Overview
8
8
years of professional experience
1
1
Certification
Work History
Senior Systems Storage Engineer
Verifone, Inc
11.2022 - 12.2023
- Optimized storage performance by implementing effective data management strategies and policies.
- Collaborated with cross-functional teams to design and implement efficient storage solutions for various projects.
- Improved backup and recovery processes, ensuring data integrity and minimizing downtime during critical events.
- Assisted in the migration of data from legacy systems to modern storage platforms, reducing operational costs and improving efficiency.
- Conducted thorough performance analysis of storage systems, identifying bottlenecks and implementing necessary improvements.
- Led successful system upgrades by creating detailed implementation plans and coordinating resources effectively.
- Troubleshot hardware components to identify root causes of malfunctions, reducing equipment downtime substantially.
- Created flowcharts, diagrams and other documentation.
- Improved data center efficiency by optimizing server configurations and implementing virtualization technologies.
- Reviewed project requests describing database user needs to estimate time and cost required to accomplish projects.
- Ensured compliance with industry standards and regulations by conducting thorough audits of data center operations.
Data Center Systems Engineer
Dentons Bingham Greenbaum
08.2022 - 11.2022
- Improved system performance by identifying and resolving technical issues within VMWare and Microsoft Azure environments
- Implemented IT infrastructure upgrades, ensuring minimal downtime during the transition process.
- Evaluated new tools and technologies for possible integration into existing infrastructure environments.
- Improved data center efficiency by optimizing server configurations, implementing virtualization technologies, managed installation, upgrade and deployment projects.
- Designed and implemented system security and data assurance.
- Worked with cloud architect to generate assessments and develop and implement actionable recommendations based on results and reviews.
Senior Systems Engineer
Verifone, Inc
05.2020 - 08.2022
- Optimized system performance by identifying and resolving complex technical issues.
- Led successful system upgrades by creating detailed implementation plans and coordinating resources effectively.
- Troubleshot hardware components to identify root causes of malfunctions, reducing equipment downtime substantially.
- Documented system configuration, mappings, processes, and created flowcharts, diagrams and other documentation.
- Automated data collection activities to increase productivity.
- Managed identification, protection and use of data assets.
- Ensured compliance with industry standards and regulations by conducting thorough audits of data center operations.
- Reduced downtime for critical systems by designing and implementing comprehensive backup and disaster recovery plans.
Data Center Support Engineer
Hays Recruiting (Contract position with SunTrust Bank)
06.2019 - 06.2020
- Maintained servers and systems to keep networks fully operational during peak periods.
- Installed, configured and maintained computer systems and network connections.
- Monitored system performance to identify potential issues.
- Monitored systems in operation and quickly troubleshot errors.
- Documented technical issues and solutions to enable tracking history and maintain accurate logs.
- Collaborated with vendors to locate replacement components and resolve advanced problems.
Senior Infrastructure Engineer
JAS Worldwide
02.2018 - 06.2019
- Streamlined data center operations by consolidating servers and optimizing storage solutions.
- Managed vendor relationships to ensure timely delivery of services and products necessary for infrastructure projects.
- Implemented disaster recovery strategies, minimizing data loss and ensuring business continuity during unexpected events.
- Mentored junior engineers in best practices for deploying and managing complex IT infrastructures.
- Spearheaded the migration of legacy systems to modern platforms, resulting in improved functionality without sacrificing security or compliance requirements.
- Established robust backup policies that safeguarded valuable company data while reducing overall storage costs.
- Monitored and tested application performance to identify potential bottlenecks, develop solutions and collaborate with developers on solution implementation.
- Managed and monitored installed systems for highest level of availability.
- Managed installation, upgrade and deployment projects and provided on-site direction for professional services engineers.
- Enabled seamless migration of applications from on-premise data centers to public clouds with minimal disruption to ongoing operations.
- Planned and implemented upgrades to system hardware and software.
Systems Engineer
Reliance Steel and Aluminum
10.2015 - 02.2018
- Improved system performance by identifying and resolving technical issues in a timely manner.
- Optimized server efficiency through virtualization techniques and capacity planning.
- Implemented IT infrastructure upgrades, ensuring minimal downtime during the transition process.
- Managed and monitored installed systems for highest level of availability.
- Collaborated with IT teams to develop comprehensive disaster recovery plans, minimizing data loss in potential incidents.
Education
Certificate in Cybersecurity -
Georgia Southern University
12.2023
Bachelor of Science, Business Operations -
DeVry Institute of Technology
02.1992
Skills
- Storage vendor management (Dell EMC, Pure, HPE)
- Virtualization (VMware, Hyper V)
- Cloud Computing (AWS, Azure)
- Backup Software Expertise (Veeam, Rubrik, Avamar)
- Windows Server Administration/Management
- Security Management
- Technical Documentation and Reporting
- Change management processes
Certification
- VMware Certified Professional, Data Center Virtualization, 2019
- Microsoft Certified: Azure Fundamentals
Timeline
Senior Systems Storage Engineer
Verifone, Inc
11.2022 - 12.2023
Data Center Systems Engineer
Dentons Bingham Greenbaum
08.2022 - 11.2022
Senior Systems Engineer
Verifone, Inc
05.2020 - 08.2022
Data Center Support Engineer
Hays Recruiting (Contract position with SunTrust Bank)
06.2019 - 06.2020
Senior Infrastructure Engineer
JAS Worldwide
02.2018 - 06.2019
Systems Engineer
Reliance Steel and Aluminum
10.2015 - 02.2018
Certificate in Cybersecurity -
Georgia Southern University
Bachelor of Science, Business Operations -
DeVry Institute of Technology
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