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Devops/system Engineer Resume

San Diego, CA

SUMMARY:

  • Senior Linux System/Cloud Engineer/DevOps/Technologist and Consultant with over 20 years of experience in UNIX/Linux administration/engineering.
  • Very strong in design, system development, and implementation/automation of client/server application suites on physical or virtual platforms in an enterprise or data center setting.
  • I’m a UNIX/Linux/open - source/automation advocate having worked with and used many open-source projects.
  • DevOps Engineer, Cloud Engineer, System Engineer, System/Linux, Administrator, System Developer

TECHNICAL SKILLS:

Automation: CI/CD (GoCD specifically), Jenkins, Ansible, CFEngine, Puppet, Git,, Jira, Agile methodology

Source code control: Gerrit/GitHUB, SVN

Package management: rpmbuild, dpkg-deb

Containerization: Docker

Cloud stacks: OpenStack Folsom, Grizzly, Havana, IceHouse releases

Open Source Linux distributions (LAMP): (Redhat, Ubuntu, Debian, CentOS, Fedora, OpenBSD, FreeBSD)

Virtualization computing/hypervisors: VMWare ESX, Redhat Xen/KVM, Parallels Desktop, HP CloudSystem Matrix

High availability: Linux-HA heartbeat, DRBD network disk mirroring, HAProxy

Proprietary OS UNIX: Solaris, HP-UX, DEC UNIX, AIX, Apple OS-X

Proprietary OS non-UNIX: Microsoft Windows workstation and server

Directory services: LDAP (OpenLDAP) services including NFS automount entries and LDAP authentication, MS Active Directory

Database Admin Proprietary: Oracle, Oracle RAC, MS SQL Server

Database Admin Open source: MySQL, Postgres, MariaDB

ERP: SAP BASIS administration/consulting (SAP America)

Web server technologies: Apache, Tomcat, JBoss, IIS, NGINX

Networking: TCP/IP, BGP, OSPF, LDAP, OpenVPN, SAMBA, Netbios, SDN

Network storage protocols/filesystems: NFS, AFS, CIFS, SAN, Confidential

Load balancing: BigIP F5, haproxy

Storage proprietary: SAN Storage using various SAN storage systems (3PAR, HP EVA6000, EMC, Brocade), NetApp

Storage open source object store: Openstack Swift, CEPH, SwiftStack

Hardware exposure: Cisco UCS Blades/servers, HP Blades/servers, Dell, IBM Blades, Sun Microsystems Sparc, generic white box 64bit servers (i.e. SuperMicro, IX) in a data center environment, EMC and 3PAR SAN, HP and Cisco network infrastructure, BigIP F5 load balancers, various firewall appliances, KVM over IP console devices

PROFESSIONAL EXPERIENCE:

DevOps/System Engineer

Confidential, San Diego, CA

Responsibilities:

  • Support of client Cisco cloud storage development/deployment
  • Deploying/testing new Openstack cloud storage systems using CEPH and SwiftStack technologies
  • Deployment using Ansible, BASH, Python tools
  • Use of Agile methodology to manage small scrum teams (i.e. Jira)
  • Used/created virtual testing scenarios using Vagrant, Ansible, VirtualBox, Python
  • Openstack modules: Keystone, Glance, Nova-Compute, Neutron, Horizon (dashboard), swift, and Ceph object store
  • Current role is uses DevOps practices leaning more on the development side of the equation
  • Use of Git, Gerrit, GoCD pipelines, Jenkins in support of Cisco Systems automation requirements

DevOps/System Engineer

Confidential

Responsibilities:

  • Supporting Webex Oracle RAC database cluster systems (i.e. automation with puppet, supporting changes within change windows)
  • Automating workflows with BASH, perl, python using puppet and/or ansible depending on the environment
  • Creating MOPs/workflow documentation on the teams wiki to capture knowledge

Senior Systems/Cloud Engineer

Confidential, San Diego, CA

Responsibilities:

  • Deploying/testing new Openstack cloud POC systems
  • Deployment using Ansible, Chef, BASH, Python tools
  • Use of Agile methodology to manage small scrum teams
  • Used/created virtual testing scenarios using Vagrant, Ansible, VirtualBox, Python
  • Openstack modules: Keystone, Glance, Nova-Compute, Neutron, Horizon (dashboard), swift, and Ceph object store,
  • Current role is similar to typical definition associated with DevOps

Senior Systems/Cloud Engineer / Developer

Confidential, San Diego, CA

Responsibilities:

  • Worked with AWS tools including AWS EC2 External Inventory script (ec2.py) in an Ansible automation development environment
  • Architected/deployed OpenStack cloud system for internal project based on OpenStack and CentOS Linux (using RDO repo) - serves as platform for Illumina’s BaseSpace OnSite product
  • Used various scripting languages to automate configuration including the use of Ansible
  • Worked with python modules, using pip, easy install, setuptools, and debugged/modified python code by analyzing python traces, wrote small python scripts in support of Openstack and Ansible automation
  • Build PXE / mrepo / kickstart / clonezilla environment to automate OpenStack compute server builds and generate new system images that can be deployed via USB stick
  • Build cloud-enabled CentOS images for OpenStack deployment
  • Built OpenStack Swift object store ring to serve as object storage resource for OpenStack environment
  • Worked with Jenkins, docker, and other open source projects
  • Deployed many new in-house packages using rpmbuild tools packages using
  • Familiar with Agile development methodology

Senior Linux Engineer / Administrator

Confidential, Broomall, PA

Responsibilities:

  • Designed core ISP user authentication architecture using a high speed replicated OpenLDAP LDAP database based on Solaris, Redhat Linux and Redhat Fedora infrastructure.
  • Wrote many perl 5.x procedures using a wide variety of available perl modules including LDAP and CGI modules.
  • Heavy use of MySQL RDBMS backend supporting Apache/PHP web-based applications including MySQL replication. MySQL backup scripts using mysqldump, gzip, and cpio. Heavy use of “mysql” command line for SQL procedures and scripts. Used and deployed MySQL Administrator, MySQL Control Center, MySQL Query browser GUI tools.
  • Built replicated Radius servers to handle remote authentication requirements for nationwide wireless and dialup access using FreeRadius back ended by an OpenLDAP LDAP database.
  • Created ISP and implemented products like WEBMAIL and self-service portals built with Apache 2.x, PHP 4.x, and Perl 5.x.
  • Performed network troubleshooting on gigabit Ethernet and fiber networks using Ethereal, arpsoof, and sniff tools.
  • Network management and maintenance of Linux/UNIX/Windows infrastructure, Cisco and Mikrotik routers, wireless hotspots, NFS, LDAP, RDMBS.
  • Use of mrepo / kickstart to automate Linux server builds
  • Administration of 64 bit Sun Solaris 10 servers and LDAP integration into Linux-OpenLDAP global user store.
  • Built high volume sendmail server farm with SpamAssassin an ClamAV anti-virus filtration and DNS Black list verification.
  • Train new employees on network and systems administration.

Senior UNIX/Linux Engineer/Architect

Confidential, San Diego, CA

Responsibilities:

  • Working in rapid deployment environment with Redhat Linux and other distributions.
  • Worked with A10 load balancers, Apache and Squid, Tomcat, and ActiveMQ message bus components supporting large web proxy clusters to manage software products in production
  • Used cfengine to manage many servers/configurations and Linux packages/repositories.
  • Mentored other engineers in UNIX/Linux and LAMP stack in general

Senior UNIX/Linux Engineer/Architect

Confidential, San Diego, CA

Responsibilities:

  • Working in rapid deployment environment with Redhat Linux and other distributions (i.e. CentOS, Fedora, Suse, Ubuntu, Debian, etc..).
  • Worked on Purdue University TOP500 project to build HPC clusters using HP’s SL series servers and open source Beowulf cluster software
  • Building POC (Proof Of Concept) systems/clusters in support of pending sales
  • Architecting Linux environment to leverage HP added value (i.e. iLO, CloudSystem Matrix)
  • Evangelize on HP product offerings and value advantages using HP BladeServer and the entire HP server portfolio (i.e. ML, DL, and SL series servers)
  • Writing scripts using Perl, BASH to automatic administration tasks
  • Mentoring younger System Engineers and introducing them to the world of Linux and open source
  • Building new lab to be used for testing scenarios in support of large customer sales (Using combination of HP proprietary and open source environments: CloudSystem Matrix, DNS, OpenLDAP, SNMP)
  • Working with virtualization technologies like XEN, VirtualBox, OpenVZ, and the new KVM (Redhat)
  • Traveling to customer sites to assist in implementations, tuning, testing
  • Creating internal open source white papers to help train HP field service in open source practices, implementations, and diagnostics
  • Building/implementing and working with cloud software stacks like HP CloudSystem Matrix and OpenStack

Senior UNIX/Linux Engineer/Architect

Confidential, San Bruno, CA

Responsibilities:

  • Working in rapid deployment environment with Redhat Linux distributions (i.e. CentOS, Fedora).
  • Managing Solaris using Domains/Zones and ZFS
  • Managing system configurations using subversion and other tools
  • Re-architecting Linux servers to handle very large traffic
  • Evaluating new 3PAR SAN solution as replacement for EMC Clariion
  • Writing scripts using Perl, BASH to automatic administration tasks
  • Mentoring younger System Engineers and introducing them to the world of Linux, open source
  • Building new OpenLDAP single sign-on environment
  • Working with virtualization technologies like XEN, Solaris zones, OpenVZ, and the new KVM (Redhat)

Senior UNIX/Linux Engineer/Architect

Confidential, Pittsburgh, PA

Responsibilities:

  • Assisting with large datacenter migration/relocation .
  • Deploy new Sun Solaris T and VX series servers to cater to application migration/relocation
  • Use and configure Jumstart services to deploy
  • Use virtual KVM services/environment to access and configure systems in Boulder datacenter.
  • Spec and size new Solaris and Linux systems in Boulder to receive redeployed software/network services from Walnut Creek datacenter.

Senior Linux Administrator/Architect

Confidential, Carlsbad, CA

Responsibilities:

  • Sized/Deployed/Managed HP C class blade infrastructure across multiple data centers around the nation.
  • Design/Size/Build/Deploy Redhat Linux based blades in a variety of configurations
  • Support 8 way Oracle 10G RAC running on HP BL680c blades running Redhat Linux.
  • Built many Postgres and MySQL (including replication) backend DB’s catering to PHP web sites and other web development frontends.
  • Configure high end bonded network interfaces for extremely high network bandwidth utilization for apps like Oracle 10G RAC, JBOSS, Apache, etc.
  • Built and managed production, staging, and development Redhat JBOSS application servers that serve as backend to Apache 2.2.x jennycraig.com customer facing web site.
  • Designed/Planned/Built replicated OpenLDAP services for Redhat server network.
  • Used EMC SAN infrastructure for HP blade storage requirements including boot-from-san configurations.
  • Built virtualized Redhat and Windows servers on both VMWare ESX and Redhat Xen platforms.

Senior UNIX/Linux Consultant

Confidential, San Diego, CA

Responsibilities:

  • Planned/Tested/Deployed Linux-HA cluster for Oracle 10G instance running on Redhat RHEL AS 4.
  • Deployed OpenVPN pipes to allow WAN communications to other Confidential sites
  • Built virtualized Redhat/Oracle test environment on VMWare ESX server for development use.
  • Deployed OpenNMS to manage infrastructure via SNMP protocol.

Senior IT Engineer/Architect

Confidential, San Diego, CA

Responsibilities:

  • Improve data synchronization across Qualcomm’s global data grid using custom and open source software tools moving 4 to 5 Terabytes per day.
  • Worked with Linux-based and Solaris-based host environments using internally developed tools and vendor tools to rapidly deploy new systems with varying configurations.
  • Worked with internal tools to deploy DNS configurations on a global scale.
  • Documented areas where improvements were made using various tools such as Visio, Wiki sites, and others.

Senior Messaging Consultant/Architect

Confidential, Blue Bell, PA

Responsibilities:

  • Managed migration of three major ISPs LDAP user accounts and email content to Comcast’s new BusinessClass hosted Exchange 2007 messaging environment. Coordinated DNS changes, IMAP-to-IMAP content synchronization, and end user experience.
  • Documented all procedures and used perl scripting to massage exported data from third party vendors prior to importing into Hosted Exchange 2007 pods.
  • Met continuously with third party vendors and upper management to coordinate migration process.

Senior Systems Administrator/Architect

Confidential, San Diego, CA

Responsibilities:

  • Sizing/implementation of 64 bit Solaris (Sparc) systems catering to a production Oracle database in a SAN storage environment (3PAR and EMC).
  • Oracle database administration on Solaris using Veritas volumes on a EMC SAN storage system including Veritas volume management Confidential
  • Designed and built a copper-based SAN system using existing RAID hardware on Gigabit Ethernet infrastructure based on extensive use of the new Confidential protocol to drive down storage costs and increase data redundancy. Charted transfer speeds over 100MBs (megabytes per second) on low cost Gigabit Ethernet switches. Use of Confidential -target and Confidential -initiators on many UNIX/Linux/Windows platforms.
  • Designed and implemented user authentication architecture using a high speed replicated OpenLDAP LDAP database based on Solaris, Redhat Linux, and CentOS infrastructure.
  • Built Xen-based virtualization computing environments (multiple virtual computers hosted on a single hardware platform) in IBM blade and other Intel and AMD platforms
  • Migrated large 500GB Oracle 9i DB from Solaris 9 to Redhat Linux EL4 x86 64 in preparation for ultimate migration from Oracle to MySQL.
  • Heavy use of MySQL RDBMS backend supporting Apache/PHP web-based applications including MySQL replication. MySQL backup scripts using mysqldump, gzip, and cpio. Heavy use of “mysql” command line for SQL procedures and scripts. Used and deployed MySQL Administrator, MySQL Control Center, MySQL Query browser GUI tools.
  • Replaced Cisco gear with fast Mikrotik routers to save on support costs, increase router/firewall features, and router throughput.
  • Implemented IBM BladeCenter and integrated with 3PAR SAN storage array using QLogic and Emulex fiber HBA’s. Created multiple Redhat and CentOS boot-from-SAN OS images to allow for rapid deployment of blade systems including preconfigured multipath drivers for added I/O redundancy.
  • Implemented Bluecat Networks Adonis high availability DNS server infrastructure using DNS internal and external views to manage internal and external DNS requirements.
  • Implemented Aventail VPN appliance to allow for remote VPN connections to corporate LAN.
  • Implemented new Scalix open source email solution on Redhat Linux as a Microsoft Exchange replacement with great success and fast user acceptance.
  • Created shared NFS/automount and Samba drive sharing to allow for transparent data access across the LAN and integrated with OpenLDAP for authorization/authentication.

Solaris/Linux Network Administrator

Confidential, Broomall, PA

Responsibilities:

  • Designed core ISP user authentication architecture using a high speed replicated OpenLDAP LDAP database based on Solaris, Redhat Linux and Redhat Fedora infrastructure.
  • Wrote many perl 5.x procedures using a wide variety of available perl modules includes LDAP and CGI modules.
  • Heavy use of MySQL RDBMS backend supporting Apache/PHP web-based applications including MySQL replication. MySQL backup scripts using mysqldump, gzip, and cpio. Heavy use of “mysql” command line for SQL procedures and scripts. Used and deployed MySQL Administrator, MySQL Control Center, MySQL Query browser GUI tools.
  • Built replicated Radius servers to handle remote authentication requirements for nationwide wireless and dialup access using FreeRadius back ended by an OpenLDAP LDAP database.
  • Created ISP and implemented products like WEBMAIL and self-service portals built with Apache 2.x, PHP 4.x, and Perl 5.x.
  • Performed network troubleshooting on gigabit Ethernet and fiber networks using Ethereal, arpsoof, and sniff tools.
  • Network management and maintenance of Linux/UNIX/Windows infrastructure, Cisco and Mikrotik routers, wireless hotspots, NFS, LDAP, RDMBS.
  • Use of high end RAID NAS servers and NFS V4 protocol.
  • Use of kickstart to automate Linux server builds
  • Administration of 64 bit Sun Solaris 10 servers and LDAP integration into Linux-OpenLDAP global user store.
  • Built high volume sendmail server farm with SpamAssassin an ClamAV anti-virus filtration and DNS Black list verification.
  • Train new employees on network and systems administration.
  • Managing Principal Consultant/UNIX/network specialist - eJiva Inc., Pleasanton, CA. Responsibilities include mentoring junior and senor consultants, building internal eJiva Technology Center systems and network infrastructure, building the SAP R3 environment at R3 customer sites, and transferring knowledge to fellow consultants and our customers.
  • Completely redesigned eJiva s internal systems and network support systems and created fluid interconnected pathways to SAP America s internal systems and the Internet to aid in overall customer support.
  • Sized and designed and built internal Oracle development systems using Sun Ultra Sparc 64 bit architecture.
  • Coordinated installations of frame-relay circuits to customer sites to build out remote support infrastructure using Cisco routing technology and T1 network providers like Sprint.
  • Implemented VPN technology to allow secure Internet based access to internal support systems and customer internal networks by our consultants.

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