Chad Dewitt Email & Phone Number

Charlotte, Nc, Us

Rochester, Minnesota, Us

Rochester, Minnesota, Us

HPC Systems Administration: - Administer Red Hat Linux 8.x while providing support to researchers across diverse client platforms, including Microsoft Windows and MacOS. - Adept with multiple schedulers, including Slurm, Sun Grid Engine, and MOAB-Torque. - Leverage diverse virtualization technologies, including Singularity (Apptainer), Podman, Docker, and Vagrant, to aid researchers as well as establish test environments for diagnosing issues, previewing software, and conducting demonstrations in presentations. - Possess expertise in diverse storage solutions, including Lustre, Isilon, and Google Cloud storage offerings, along with a comprehensive understanding of best practices in large data management, encompassing efficient transfers and capacity sizing. - Proficient in creating and delivering presentations to a variety of audiences. - Conduct a range of administrative duties, including user onboarding/offboarding, patch management, problem resolution, and the compilation and troubleshooting of open-source software. - Work closely with team members and collaborate with various internal Mayo technology groups to create a productive and efficient research environment. - Successful at partnering with vendor support teams, such as those from SchedMD, Dell, and Illumina, as well as researching open-source software issues. HPC Cloud: - Studied for and successfully obtained the Google Associate Cloud Engineer certification. - Adept at Terraform and Microsoft ADO pipelines to modify the MCC environment in accordance with Infrastructure as Code (IaC) principles. - Operate within the Agile project management framework. - Partner with various IT teams, stakeholders, and researchers to plan, design, and implement solutions in the Mayo Clinic Cloud. - Enhance Terraform code efficiency and perform code cleanup for optimization.

Charlotte, Nc, Us

Administration:- RHEL 7.5/8.3- File Systems (XFS via NFS, ZFS, Lustre)- Responsible for Identity Management and entitlements- PostgreSQL- Zabbix- Previous Microsoft Windows administration experience- Singularity (Security focused container runtime for multi-tenant HPC environments)Automation:- Automated class creation on educational resources reducing time from 2 hours to 5 minutes while maintaining an accurate class roster. [Python, PostgreSQL, OracleDB]- Architected and implemented a data mover system to perform a daily sync of a 3PB file space to a ZFS volume. [PostgreSQL, Python (with multithreading), ZFS]- Using Jenkins, produced a pipeline that builds the Lustre client from source as kernels change.- Produced a Lustre and Slurm test environment via Ansible, Vagrant, and Virtualbox, using Git for version control.- Verify HPC users via PowerShell script against the organization's Windows Active Directory.Continued Education:- Enrolled in the Security Graduate Certificate program at UNC Charlotte.- Study various technologies via my home lab including: Jenkins, Splunk, OpenVPN, Hyper-V, Duo, Microsoft Windows 10, Kubernetes (via Docker CRI).- Experiences in researching technologies for inclusion within the environment. (ex. Singularity, Ansible, Foreman, Lustre, Zabbix)- Maintain CISSP in good standing via self-study.Customer Service:- When working with researchers, expectations are set. (e.g. Timelines, updates, and follow-ups.)- Assist researchers of various technical backgrounds.- Created and maintain the group's documentation consisting of procedures, root cause, run books, and change control documentation to disseminate information.- Adept at working in both educational and financial environments, each having different controls and priorities.Interests:- Stable and robust automation of manual processes- Researching and applying technologies- TensorFlow- Virtualization- High Performance Computing

New York, Ny, Us

Authored and maintained system runbook for Aveksa and various systems procedures. Brought the Aveksa Compliance Manager environment up to corporate standards by improving reliability, implementing best backup practices, and ensuring a capable DR environment through scheduled DR testing. Researched any errors in the morning on boarding data feed and worked with system owners to correct malformed or incomplete data. Made modifications to the morning on boarding/off boarding data load ETL Microsoft SQL SSIS packages and C# logic and updated corresponding documentation. Developed workflows in CA’s Identity Minder Policy Xpress for business cases and advised on proper workflow design.

Charlotte, Nc, Us

Migrated physical licensing servers to a VMWare ESXi platform to reduce costs and simplify administration. Mentored student workers and guided them through various IT methodologies, such as troubleshooting, customer communication and basic IT procedures. Worked with stakeholders at various levels to architect and implement the Course Syllabus Management System in HTML/PHP/mySQL, satisfying various requirements related to the biannual evaluation of the College of Engineering by the Accreditation Board for Engineering and Technology (ABET). Maintained documentation concerning various procedures and applications being packaged for release. Documented all job responsibilities and duties upon leaving the group.

Documented the systems under area of responsibility and wrote change control documentation and various procedures. Co-managed the Sarbanes-Oxley Security Effort (ISR3) and Microsoft Windows NT 4.0 to Microsoft Windows 2003 domain conversion efforts involving 15 individuals, 1,000 servers and approximately 600 applications. Served as developer on the trader commission tracking system, Investor Performance Management, consisting of a data warehouse utilizing Microsoft SQL Server 2000 Enterprise, Microsoft Data Transformation Services (DTS) with a Siebel Analytics 7.5 frontend. Responsible for maintaining various trading systems and partnering with traders to resolve issues.

Graduate Certificate, It Security

Bachelor'S Degree, Computer Science