Christopher Grinnan Email & Phone Number

Ocean Beach, San Diego, California, United States

Irvine Ca

Responsible for the design, implementation, and maintenance of all production systems. Other duties include network expansion, oversight of datacenter moves, backup design, expansion planning and purchasing. Design and creation of a stateless (diskless) baremetal provisioning infrastructure resulting in simple and quick automatic provisioning and configuration of all database and web services onto bare metal - with continued administration, expansion, and improvements Design and administration of worldwide configuration management infrastructure. stateless and statefull baremetal and virtual OS deployment and configuration management system using PostgreSQL BDR, Ansible, and xCATDesign and administration of databases and data storesDesign, maintenance, and upgrades of back up systems for volumes, database, key stores, and virtual infrastructureDesign, test, and administration of global security, network and infrastructureManagement of firewalls and intrusion detection systems

Responsible for day-to-day management, growth, hardware/software/support contracts, configuration andsupport of Caterpillar’s San Diego HPC infrastructure with 1728 cores over 2 HPCC (142 Compute Nodes).This includes:• Parallel Storage (GPFS, IBRIX)• xCAT Cluster Administration• Project Management relating to HPC• Purchasing for HPC and other Linux based systems• Performance and problem monitoring• Issue resolution and issue resolution delegation• Problem management• Maintenance and maintenance scheduling• Growth planning and growth management• Integration with emerging technologies• Storage management, growth and forecasting• Backup management• Creation, documentation and implementation standards, processes and rules relating to the environment• Third party support contract management and communication• Procurement, and asset management relating to the HPC environment• Intra/inter-departmental communication with the following departments/teams:• SAN Storage (forecasting and storage addition requests)• Network (forecasting and network addition requests)• Backup• Provisioning and support for application owners and users• Communication of resources, needs, status to the greater business

Greater San Diego Area

Hired as a Linux/Unix system administrator to support RHEL 5 on IBM X-Series hardware, AIX 5/6 on IBM P-series hardware, Solaris 8/9 on Sun hardware. Also worked as a member of the SAN Storage Teamadministering IBM DS4000, DS6000, DS8000 series.

New York, Ny

Hired to deploy a small to medium sized IT environment for this media/web development company. Deploymentincluded: DNS (BIND 9), Apache/Tomcat Services, System wide LDAP Authentication with SSL, SAMBA/CIFS,Postfix Mail Services with virtual domains , Mostly, Mac OS 10.2/3/4, Darwin 7/8, FreeBSD 6, SuSE 8, andsome Win NT/2k

Mit Idss - Certification, Data Science & Machine Learning

Bachelor Of Arts (Ba), Physics

Focus in computational modeling and mathematical approximation techniques. Projects involving two dimensional modeling of waves in stiff.

Ms (In Progress), Applied Math

Courses focused on analysis of Nonlinear Dynamical Systems