Linux Engineer Resume
Austin, TX
SUMMARY:
I currently have 8 years of combined Linux and Windows experience as a Systems Engineer. My experience includes LAN/WAN/SAN Administration, IaaS(cloudstack), Cloud (AWS, Rackspace), Backup (SAN/NAS), Disaster Recovery, Windows (2012/08/R2), Linux (CentOS), VMWare and solutions architecting. I have an interest in DevOps culture and practices.
TECHNICAL SKILLS:
Server OS: OS X, Windows 2012 R2 - 2000
Linux: Centos 6 7, Ubuntu 10, Fedora
Orchestration: Cloudstack 4.x
Virtualization: Vsphere ESXi, XenServer, Redhat Enterprise Virtualization.
Source control: Git
Cloud IaaS: AWS, Rackspace Cloud
Scripting: Bash
Databases: MySQL, Elasticsearch
Messaging: MS Exchange, Postfix, PowerMTA, Office 365, Hipchat, Zimbra
Switches: Cisco, Dell, HP, Juniper
Monitoring: Munin, Check MK, Nagios, Cacti, Vivid Cortex, New Relic, Scalyr, ELK
Backup: rsync, ArcServe, IASO, Trivoli, Backup Exec, VEEAM, Ahsay, Rsync, Data Domain
Server Hardware: Dell, IBM, HP, Whitebox
Security/Firewall: Cisco ASA, Juniper SRX, Vyatta
PROFESSIONAL EXPERIENCE:
Confidential, Austin, TX
Linux Engineer
Responsibilities:
- Monitoring and alerts setup with check mk
- Set up metrics collection in Munin
- Cloud migration from Redhat Enterprise Virtualization to Rackspace Cloud
- Nginx & Apache maintenance, tuning and troubleshooting.
- Setup VictorOps alerting with Scalyr and Check MK
- MySQL administration and trouble shooting, especially of slave replicas.
- Linux server tuning and trouble shooting.
- Maintaining documentation in Confluence.
- Used Jira ticketing for sprints.
- Wrote BASH scripts to initialize severs and manage them.
- Maintain source code in Github repo’s
- Architecture input on current cloud setup
- Set up OpenVPN server for connecting to cloud environment
- Set up Linux networking routing and firewall (iptables, firewalld)
- Created binary log rotation tool for MySQL in bash.
- Used home grown config management and deployment system to maintain systems.
- Started migrating to Saltstack for config management and some cloud orchestration.
- Setup script to use rackspaces api to attache iscsi drives to their OnMetal instances.
- Managed and maintained PowerMTA and postfix server.
- Setup saltstack testing environment in Vagrant.
- Migrated servers to Centos 7 from 6.
- Designed and set up a Dynamic dns system with bind and nsupdate.
- Deployed, maintained, monitored, tuned and upgraded Elasticsearch.
- Set up Servers to push logs via Filebeat to Logstash for processing In an ELK stack.
- Set up systems with Scalyr monitoring.
- Deploy maintain troubleshoot and setup Cisco ASA 5510 (vpn, routing, and nat).
- Trouble shoot and assist in fixing our main line application.
- Maintained and set up NFS server.
- Setup and maintain backup’s and rsync server backups
Environment: Rackspace Public Cloud, Redhat Enterprise Virtualization 3, Centos 6 & 7, Check MK, Nginx, Apache, PHP 5.5 application, Percona MySQL 5.6, Remote Data Center in Chicago, Elastic Search, Single off site DB slave in AWS
Confidential, Los Angeles, CA
Infrastructure Engineer
Responsibilities:- Storage Archiving script for AFP Shares on OS X Servers
- OS X XSAN repair connection
- Zimbra mail server maintenance
- Managing Ticketing in Jira
- Adjusted Nagios monitoring on Linux Windows and VMware servers
- PowerShell script and ruby script to convert ical to csv
- Setup Vmware DRS
- Lock down Networks With ACL’s and VLANs
- Upgraded Netapp ontap 7 to 8
- Setup PDU and UPS Alerts in PagerDuty
- Upgraded VMWare Infrastructure from 5.1 to 5.5
- Upgraded Git Enterprise
- Separated Management, Storage and Guest networking in VSphere
- Debugged and fixed DHCP issues
- Active Directory FS SAML Debugging.
Environment: OS X Server, Ubuntu 10.04 & 12.04, Windows 2008 R2, 2012 R2, Zimbra Mail, Custom Rails Apps, Juniper Switches, Netapp, Juniper SRX, VSphere 5.x, Datacenter with 4 Remote office Locations Around the Globe.
Confidential, Los Angeles, CA
Contract Systems Engineer
Responsibilities:- Setting up Cisco Switches for an access layer upgrade across the company’s network.
- Assisted in setting up a Cisco Aironet 3700/ISE Wireless network upgrade on a tight schedule.
- Took the lead in setting up the new office with networking and infrastructure.
- Monitored and tested system performance to ensure business requirements are met.
- Set up and tested a new SAN 10 GB using Ethernet over fiber to QNAP with flash cache setting up XenServer 6.2 for virtualization.
- Daily duties also include tape backups with TSM.
Environment: MS Windows Server (2012/08R2/08/03) Cisco ASA5510, Cisco 2650x 3750x, Active Directory, Xenserver 6.2, VOIP Phone, ArcServe(in transition from TSM), On Premise Data Center, 10 GB Fiber, Qnap
Confidential, Los Angeles, CA
Systems Engineer
Responsibilities:- Full server management for most of the environments 150 servers.
- Installed, monitored, and deployed Windows servers (2003, 2008, 2008R2, 2012).
- Performed troubleshooting and performance monitoring/sizing of hundreds of Windows virtual servers through vSphere and Virtual Center.
- Performed P2V, V2V, conversions with VMware converter, Double-Take and Acronis.
- Application migrations between data centers in different geographical sites and inside the data center itself.
- Performed troubleshooting and performance monitoring of HP Proliant Windows servers.
- Responsible for backup and disaster recovery including, deploying, restoring and troubleshooting Acronis, Double Take, VEEAM, Shadow Protect and CA Arcserve.
- Required a constant ability to learn, understand, and deploy new applications and solutions rapidly as well as evaluate and understand business processes.
- Oversaw project implementation, management, and planning for new and current clients
- Performed Root Cause Analysis for infrastructure related outages or performance degradation.
- Network and systems documentation for our infrastructure and client’s infrastructure.
- Supported an Active Directory environments, and fixed trust issues that would occur with Active Directory Replicating over a VPN and Sudden loss of Active Directory and Exchange servers by performing meta data clean up.
- Heavy Hosted VDI with Remote Desktop Services for client access over our hosted infrastructure.
- Used hosted infrastructure to host traditional windows application servers.
- Performed projects and upgrades to server and Active Directory infrastructure.
- Setup and administered Exchange (2003, 2007, 2010, 2013) in a hosted environment.
- Performed advanced troubleshooting of client networks and infrastructure.
- Identified areas for process improvements related to hardware testing and release procedures.
- Utilized both native and third party tools to manage the Windows environment.
- Setup and administered white box NAS running Centos 6 and NFS exports.
- Used Centos 6 in production for a NAS, a CloudStack Cloud Management server, and a cloud storage node for IASO.
- Used PXE boot for Centos 6 deployment of Cloud Storage Node in our Las Vegas data center
- Deployed and maintain a vSphere 4.0/4.1 environment with ESX 4.0/4.1 servers, as well as standalone ESXi servers running 4.0/4.1/5.0/5.1.
- ESX hosts were deployed in a multicluster environment, with DRS and HA enabled
- Maintained and deployed Dell and EMC iSCSI Storage for the vSphere SAN.
- Planned and executed two data center moves with no loss of data and minimal downtime.
- After taking over management of the VMware environment, stability and performance increased dramatically.
- Set up, planned, deployed, maintained, expanded/populated our CloudStack IaaS offering.
- Was offered a stake in the company as a result of my hard work.
Environment: Windows (2012/08R2/08/03) Centos 6.X, Cloudstack 4.x, VSphere ESX 4.x, 5.x, Xenserver 6.x, Hosted Remote Desktop Services, Dell Power Connect Switches, Cisco ASA Firewall, Sonicwall, Dell PowerVault MD 3200x, EMC VNX, Dell Equalogic, iSCSI, VEEAM, IASO Los Angeles and Las Vegas Data center
Confidential, Los Angeles,CA
Systems Engineer
Responsibilities:- P rovided desktop and server support for small business owners remotely and on-site as Managed Services Provider
- P rovided desktop, laptop and server hardware support.
- M ain responsibilities included setting up and supporting Windows Server 2003 - 2008 R2.
- R esponsible for network setup and support with Sonicwall Firewalls and Dell Switches.
- Documentation and Ticketing were heavily emphasized in day to day operations .
Environment: Mostly SMB with Windows Server 2003 - 2008 R2 and SBS server with Dell and Sonicwall Networking Windows desktop environments as well
Confidential, Los Angeles, CA
Desktop Support
Responsibilities:- Provided desktop and server support for small business owners, installed and set up networks and installed router switches.
- Installed a LAMP server, and installed and configured a basic active directory structure.
Environment: SMB clients with Windows workstations and Switches.
Confidential, Los Angeles, CA
Desktop Support
Responsibilities:- Provided desktop and server remote and on site support for the clients in the legal profession across Los Angeles and Ventura counties
- Installed legal industry specific software
- Set up new desktops and users in active directory
- Troubleshoot problems with network printers, install hardware upgrades
- Provide mid level Exchange support
- Assisted with Server 2003 SBS set ups and migrations
- Reviewed server logs and reports, reviewed/processed trouble tickets in Kaseya
- Reviewed/processed trouble tickets in Kaseya
Environment: Consulting firm dealing mostly with SMB Legal offices running Windows XP and Windows Server 2003 SBS with Sonicwall firewalls and Dell switches and servers. Backup Exec and legal software