- Linux systems (CentOS/RedHat, Ubuntu, Amazon Linux)- AWS (EC2, VPC, EKS, TGW, CodeBuild, S3, ACM, RDS/Aurora, Route 53)- Application / Infrastructure support (nginx, apache, redis, MySQL, DNS, ansible)

• Manage all aspects of linux (CentOS 6/7/8) server image builds (VMWare templates), deployments (manual and Terraform provisioning), maintenance (systems administration and application support), configuration management (ansible), patching (katello/foreman) and security remediation (CIS2 hardening, vulnerability remediation)• Specify, build and deploy servers, storage and vendor appliances at datacenter colocation site• Manage VMWare clusters and underlying HPE Nimble SANs• Build and maintain RabbitMQ, MongoDB, Mulesoft and Kafka clusters• Deploy and maintain MySQL and MariaDB database instances

• Architect and support multi-tier infrastructure solutions for multiple brands and internal customers (CentOS, RHEL, Apache HTTP, Apache Tomcat, Percona Server, PHP)• Create and maintain puppet configuration manifests and modules• Maintain DNS zones via BIND, version controlled in Github and deployed via Jenkins• Manage VMWare clusters (200+ ESXi hosts, NSX, vSphere), underlying Dell Compellent SANs (LUN provisioning, latency monitoring, firmware updates) and resident VMs (5000+ VMs)

Architected infrastructure solutions and provided operational support for web-facing and internal LAMP stack systems (CentOS, MySQL/Percona Server, Apache). Built VMWare cluster and migrated from XenServer virtualization platform. Supported all hardware in data center (co-lo) and office/warehouse data closets.

Architect, manage and support complex, redundant internet facing systems on commercial and open source platforms (Apache, HAProxy, Keepalived, stunnel, IIS, Cisco ASA). Architect and maintain clustered and fully redundant virtual environments (Citrix XenServer, VMWare). Build out and maintain SAN and NAS storage, monitoring systems, backup systems and manage all office and co-located hardware. Build and manage redundant database systems (MySQL, Postgres, streaming replication).Increased server virtualization from 5% to 80% while growing the total server node count by 7x.Eliminated network single points of failure and rolled out storage multipathing throughout the production environment.

Manage tier 3 support team of linux administrators and engineers supporting shared hosting products for over 4 million customers across 2900+ physical serversIncreased size of organization from 8 to 14 and converted staffing model from a flat group of administrators to a structure of administrators, senior administrators, engineers and technical supervisors resulting in a complete and diverse team with tiered responsibilities and intra-team upward mobilityCoordinated server refresh project, achieving a 5% reduction in server footprint, elimination of obsolete hardware and upgrade of 18% of footprint running obsolete/unsecure operating systemsInstituted regular patching cycles resulting in 100% OS conformance to current distribution standards

Manage provisioning, configuration, rapid deployment and production support (firmware, patches, etc.) for leased and co-located server infrastructure (60+ leased dedicated servers, 30+ servers across 2 co-location facilities)Architect, configure and support highly available, multi-tier web applications built on the LAMP stack using DRBD, OCFS2, HAProxy, iSCSI SAN, VMWare ESXi, etc.Documented build, provisioning an support processes for team and Tier 1/NOC resources

Build, configure and maintain 1500+ Linux servers for Shared Hosting products servicing over 1.5 million customersProvide production support for customer environments, including monitoring usage, enhancing stability and automating user and system process managementMentor and document processes for Tier 2 support resources

Managed deployment of 750+ servers (HP Proliant DL/ML/BLc), 80+ network devices (Cisco Catalyst/MDS/WAAS/PIX, F5 BigIp, etc.), 15+ storage devices (EMC Symmetrix/Clariion/Celerra/Centera) including data center mapping, installation, cabling and power-up.Deployed 32 HP C; Class blade chassis and over 200 blade servers, reducing standard server footprint by 65% and power/cooling requirements by over 30%. Developed standards and procedures for blade deployment across all company data centers.Assumed responsibility for Release Engineering team on and off-shore; developed reporting standards for change deployment and re-aligned resources to better meet business needs.Directed, budgeted and managed vendor in build out of new data center row, including deployment of 24 server cabinets as well as CAT6 and fiber patch panels to center row network equipment, Ethernet core and SAN core.Hire, train, develop, manage and evaluate data center Tier 2 team that executes server deployments, OS builds and 24/7 production support activities for entire 13,000 sq ft data center while maintaining an exceptional record of professionalism, timeliness and customer service.Develop and maintain policies, procedures and SLAs pertaining to deployment, production changes and decommission of servers in company data centers.

Spec, configure and support 100+ Linux (RedHat Fedora Core and RHEL AS), Solaris (8 and 9) and Windows (2k and 2k3) servers in 3 data centers.Architect, deploy and support web applications across multiple products on various platforms (primarily Apache HTTP and Tomcat)Communicate with development teams regarding resources necessary for development, staging/QA and production environments based on platform, anticipated load and projected growth.Generate written and visual (Visio) documentation for new implementations and processes.

Architected, deployed and maintained $55 million annual ecommerce presence, including database development, hardware procurement and management (Sun Enterprise and Dell PowerEdge), internet applications development (Cold Fusion MX) and maintenance and enterprise connectivity. New solution resulted in five-fold online sales increase.Plan and develop connectivity from web presences to enterprise applications (RedHat Enterprise Linux, Solaris, IBM DB2 UDB, MS SQL Server connectivity to AS/400, DB2 back end applications)Create and report on technical, sales and operational metrics regarding ecommerce presencePropose, plan and implement upgrades in capacity and functionalitySpec, budget, implement and maintain Enterprise-wide Vertex Sales and Consumer Use Tax solution on Apache Tomcat, Oracle 10g and RedHat Enterprise Linux aligning business with state and federal tax reporting laws and shielding the business from audit and significant fines.

Develop and deploy database driven internet applicationsAdminister all aspects of UNIX (Sun Enterprise) and NT (Dell PowerEdge) server infrastructureHire, manage and develop 5-8 Graduate Students