Unix Engineer And Administrator Resume
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SUMMARY
- Senior LINUX (RED HAT ENTERPRISE, CENTOS, SOLARIS, VMWARE, SLES) engineer supporting physical and virtualized Prod/QA/Dev/DR Data Centers.
- Skills include Devops approach to provisioning, migrations, upgrades of servers, user and data center relocations, disaster recovery / business continuity and tech refreshes.
- Scripting, HA and performance clustering, configuration management, work flow automation / change management and version control.
Responsibilities:
Confidential
Unix Engineer and Administrator
Responsibilities:
- Senior server side DEVOPS root user hands - on admin collaborating in continuous integration and deployment (Jira, Bamboo, Glassfish) of multiple high traffic web sites (Tomcat, Apache2, Nginx) with financially critical live feeds.
- Build, clone and cluster RED HAT Vmware ESXi Clustered Hosts with DRS managed via Chef. Launch, secure, deploy within AWS hybrid cloud Centos and Ubuntu production instances along with caching servers (Redis, Memcache) .Manage AWS costs: spin up/down instances as traffic or deployments dictate, downsize, place in cold standby, or terminate underutilized instances. Utilize Fastly CDN'sand purge outdated data.
- Secure AWS and Vmware Servers using encrypted keys, security gateways, iptables firewalls, fail2ban, allowed/denied users/ip/domains etc, Launch automated Bamboo or Glassfish deployments and track them through DEV, staging, and production via JIRA performing break fix when necessary.
- Perform manual deploys of war and jar files for custom and one-off apps and utilities. Author and execute shell and AWScli scripts when necessary. Utilize GIT repositories for Chef and other servers. Contribute to in-house WIKI, runbooks and "Break Glass" procedural documentation.
Confidential
Infrastructure Analyst
Responsibilities:
- Triage UNIX Sev 1-3 escalated RHEL 5.x/6.x OS & server HW and infrastructure tickets. Determine root causeand direct solution, remediation & implementation within workflow automation framework: Symantec DRA.
- Subject Matter Expert (UNIX) for HA/SR Team (High Availability/Sustained Resiliency). Assess JPMChase Top Ten “Crown Jewel” infrastructures. Identify HA/SR gaps among architectures involving LAMP Stack, VMWARE, IaaS, PaaS, RHEL, Load Balancers, NIC/SAN/Switch redundancy, NFS Appliances, HA Clusters. Report findings to LOB & App owners for remediation to assure Recovery Point and Recovery Time SLA compliance objectives to withstand constraints of actual unplanned accidents, failures and disasters. HA/SR Team successes led to adoption of the program beyond Crown Jewels to bank-wide.
Confidential
Senior Systems Specialist & Infrastructure Admin
Responsibilities:
- Provisioned and administered Red Hat Enterprise Linux (5.x/6.x) servers within 24x7 Prod/QA/Dev environments consisting of approximately 200 physical (HP ProLiant, Dell PowerEdge, IBM) and 60 virtual (Vmware, KVM) hosting market data Oracle Databases, LAMP, and other apps among three Prod and DR interstate data centers. Installed and configured SVM, VXVM, VXFS, VCS, multipathing, and IPMP link aggregation, NIC teaming & bonding. Performed as primary lead in High Availability via Veritas Cluster HA Database Edition entire foundation stack, private networks, vlans, and cluster maintenance involving several dozen HA clusters. Performed OS/firmware/Cluster/vendor patching, Data Center power-downs, firmware upgrades. Disaster Recovery Simulation site failover Prod to DR and back.
- Relocated vendor hosted Market Data Regulation Prod DC to FINRA owned Data Center. Migrated apps from divesting OS and Hardware to RHEL on Dell/HP/IBM. “Go-Live” cutover halped FINRA realize significant cost savings.
- Liaison to SAN / Database / App Owners in regards to DB LUN Carve Out / redundant fiber channel, creation of physical, volumes, filesystems, root cause analysis. Authored scripts for task automation ( bash, ksh, awk, sed, python ).
Confidential
Term Contract for Tradeplant Engineering
Responsibilities:
- Retroactive Onboarding of Legacy Applications and Systems. Production of audit compliant Runbooks. Technical systems and gap analysis for assurance with internal and external standards /audit compliance.
- SAP /BASIS AIG Global Implementation - Built multiple SAP instances into non-global virtualized zones capable of intricate Service Group Dependencies dat could failover within multi-node architectures and Service Groups. Provided architecture to eliminate SPOFs. Systems Liaison to SAN team, Sap Basis Team, DBA Group, Senior Management.
- Portfolio Asset Management Oracle RAC Project - provided underlying infrastructure and servers maintaining special disk devices, public / private networks, systems performance tuning, kernel upgrades, user management. Disaster Recovery Planning and Implementation: Meet aggressive uptime SLA’s via Solstice Volume Manage/Disk Suite, Veritas Volume Manager & File System, Active/Passive & Active/Active Veritas Cluster Server, Oracle Real Application Clusters, Simulation of catastrophic events up to and including Data Center cutover to DR sites.
- Assured proper SAN Team LUN Presentations and carved storage into Veritas Volume/ Filesystems.
- Created VCS Groups and managed switchover from node to node and from interstate primary and DR sites.
- Closed out escalated Global Change Management tickets involving Sun, Egenera, Red Hat, SUSE, NFS, NIS, TCP/IP, Filesystem, Permissioning, and Security. Managed decommissioning of end of life hardware
Confidential
Symantec Senior Solutions Specialist
Responsibilities:
- Implemented throughout North America projects incorporating entire Veritas HA Stack (VXVM, VXFS, VCS, CFS) Designed configurations include active/active, active/passive, failback and cluster service group dependency designs via scripting (Perl). Implemented Cluster File System for concurrent node access of shared filesystems with locking.
- Coordinated clustered shared storage from SUN, EMC, Hitachi, HP, and IBM. Reduced to the point of elimination single points of failure within hardware infrastructures. Certified all clusters via Acceptance Testing Plan including: simulation of power loss, catastrophic loss, boot disk failure, service group migration to surviving nodes, file system & database failures..
- Implemented Veritas Cluster Bundled Enterprise Agents: Veritas Netbackup, Oracle, Sybase among others. Scripted custom agents to for customer specific applications (Perl, BASH)
- Co-Authored the Veritas Certified Professional HA certification exam for High Availability.
Credit Suisse First Boston Systems Admin Contractor
Confidential
Responsibilities:
- Migrated Trade Confirmation System platforms from legacy standalones to Enterprise H/A Clusters including operating system upgrades from sun setting OS versions.
- Translated Global Financial Exchange Fed Reserve and internal reqs for near-line storage of important business files and documents to technical specs needed for implementation. Upgrade of Legato Networker Server and Client middleware. .
- Delivered high level support in emergency situations or problem ticket escalation involving Prod and Dev environments.
- Built and upgraded Solaris business and Raptor firewall systems. Applied Y2K compliance rebuilding mission critical banking systems. Maintained server TCP/IP files for customer accessibility and network routing.
- Created Parallel test platforms for managed growth from SPARCstations to Sun/Enterprise architectures.
- Designed, built, and relocated a trading floor cross town complete with all servers, clients, market data feeds and underlying network infrastructure resulting in vastly increased performance and reliability of trader desk client machines.
- Administered Veritas Volume Management systems. Introduced Storage Arrays with mirroring, stripping and Raid 5.
- Designed and migrated network upgrade from a shared 10 BaseT network to an all switched 100 BaseT network. Built and maintained NFS and NIS servers and clients.
- Supplied tech support for: Money Market, Repo, OTC, Sales, Fixed Income. Represented IT in Fed Reserve audits.