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Unix Engineer Resume

5.00 Rating

El Dorado Hills, CA

OBJECTIVES:

  • A UNIX/Linux System Administrator, System/Software Engineer or Systems/Operations Analyst position.
  • I'm currently unemployed and interested in positions in the Sacramento California area only.
  • I’m available to start a position immediately.
  • Salary/rate is negotiable.
  • Not looking to relocate.

SUMMARY:

  • 23+ year’s work experience as a UNIX/Linux Systems Administrator.
  • Experience implementing and managing high availability (HA), scalable, and clustered enterprise class server environments in compliance with service level agreements (SLA) and project requirements.
  • Understanding of UNIX (Solaris, HP - UX, AIX, IRIX) and Linux (Red Hat Enterprise Linux (RHEL), CentOS, SLES (SuSE Linux Enterprise Server)) operating systems, user/group management, filesystem and storage management, system services, TCP/IP services, system security, networking protocols and kernel modifications (building kernels, parameters).
  • Experience implementing Red Hat Enterprise Linux clusters for high availability. Experience implementing Red Hat Network Satellite and supporting services (Kickstart, PXE, Revision Control, Subversion).
  • Experience with virtualization technologies, whether in migration of physical to virtual systems and/or deployment of new virtual systems. Proficient in VMware software (ESX, vCenter, vSphere, Workstation) to manage virtual machines. Also have some experience managing Solaris Zones.
  • Experience with performance tuning, maintenance (upgrades, patching), monitoring (Nagios, Tivoli, Big Brother), system log management (SYSLOG), time/date management (NTP), and troubleshooting in enterprise class server environments.
  • Understanding and experience with volume and filesystem management using LVM, Veritas Volume Manager (VXVM), Veritas Filesystem, Sun Volume Manager (SVM) and ZFS mangement. Experience with NFS, CIFS and Samba. Understanding of Network Attached Storage (NAS} and Storage Area Network {SAN} storage, with a focus on NetApp and EMC products.
  • Experience implementing and maintaining web servers (HTTP/HTTPS), and FTP servers, for both internal and external(public) access (apache, tomcat). Experience with virtual hosting on web servers.
  • Experience implementing and maintaining DHCP and DNS servers.
  • Experience implementing and maintaining database servers (Oracle, MySQL).
  • Understanding and experience with LDAP and Active Directory services.
  • Practical understanding of network routing, subnets, UDP, TCP, IP, LAN, WAN & VLANs.
  • Practical scripting skills csh/ksh/bash shell, PERL and HTML.
  • Experience with backup software and recovery strategies, including EMC NetWorker and Symantec NetBackup. Experience with large capacity media libraries (StorageTek).
  • Experience in system security management. Including operating system hardening and remediation, secure access (SSH, kerberos, two factor authentication, single sign on (SSO)), and filesystem security measures. Including experience with SElinux, Iptables, PKI, openSSL, opensc, openSSH, openPGP.
  • Experience in standards compliance, best practices, auditing, capacity management, business continuity and disaster recovery. Experience in system compliance with Department of Defense IAVA requirements. As well as HIPAA and PCI compliance, and auditing requirements.
  • Experience working in a project management environment following processes, attending meetings and providing appropriate documentation on based on project requirements.
  • Experience developing system and audit documentation for various deployments to web, wiki or to document management software.
  • Experience implementing Solaris ZFS Filesystems and Zones (containers) in Logical Domains.
  • Effective communication and organizational skills. Outstanding written and verbal communication skills. Motivated and enthusiastic about developing good relations with co-workers. Effective working alone or as a cooperative team member.
  • Strong analytical skills, ability to reduce large problems into small manageable components. Root-cause analysis of system issues.

SKILLS:

Hardware/Platform: Oracle/Sun (Fire/Enterprise/Netra/Blade/Ultra/Sparc/x86/x86 64/AMD), SGI (Altix/Origin/Onyx/Fuel/Octane/Indigo/Indy), HP (ProLiant/Integrity/9000/900), IBM (RS-6000), Dell (PowerEdge)

Operating Systems: Oracle Solaris (1.x-10), SGI IRIX (3.x-6.x), HP-UX (7.x-11.x), IBM AIX (4.x), Red Hat Enterprise Linux (4.x-6.x), SuSE Linux Enterprise Server (9.x-11.x), Oracle Enterprise Linux Server (6.x), CentOS (5.x-6.x), Microsoft Windows Server (2008)

File Systems: Oracle/Sun (UFS/VFS/ZFS), SGI (EFS/XFS), HP (HFS), IBM (JFS), Linux (EXT2-4, LVM, LUKS), Veritas (VxFS), NFS, Automount/AutoFS, Samba, CIFS, RAID

UNIX/Linux Shells: sh, csh, ksh, bash

Boot Loaders: grub

Linux Package/Patch Management: rpm, yum, yumex, yast, zypper, Red Hat Bugzilla

Services: DNS, NTP, DHCP, NIS/YP, NFS, FTP, HTTP, Syslog, SMTP, Postfix, LDAP, Active Directory, Dell/Quest AD Integration for UNIX/Linux, Red Hat Identity Management (IdM) / IPA

Security: SSH, SSL, PKI, SFTP/SCP, Firewall/iptables, SELinux, PAM, OS Hardening, Password Aging, File System Access Control Lists and Attributes (ACLs/FACLs, SUID/SGID, Sticky Bit, umask, user xattr), Filesystem mount options (nodev, noexec, nosuid), File Attributes (lsattr, chattr, getfattr, setfattr), GPG/PGP, RSA/DSA Keys/Certificates, rkhunter (rootkit search), fail2ban, cryptsetup/LUKS, AIDE, GRUB & GDM/Gconf security, Host Based Access Control (HBAC)

Logging & Auditing: syslog, rsyslog, log encryption (certtool), log rotation (logrotate), auditd

Compliance: CIS, ISO, NIST, HIPAA/PHI, DoD IAVA/STIG

Scripting: Shell (sh, csh, ksh, bash), PERL

Network/System Monitoring/Management: Big Brother, HP OpenView, CiscoWorks, IBM Tivoli, Nagios, Red Hat Network, Red Hat Satellite, Red Hat PXE/KickStart, Red Hat Identity Management (IdM) / IPA, and Platform Tools

Virtualization: VMware (4.x, 5.x), vSphere, vCenter, ESXi, Workstation

Cloud: Red Hat OpenStack (Horizon, Keystone, Neutron, Cinder, Nova, Glance, Swift, Ceilometer, Heat), Amazon Web Services (Foundation Services Compute, Storage, Database, Network, AWS Global Infrastructure Availability Zones, Regions, Edge Locations, AWS Management Console, AWS CLI, AWS EC2, AWS VPC, AWS S3, AWS EBS, AWS CloudWatch, AWS CloudTrail, AWS CloudFormation, Elastic Load Balancing, Auto Scaling)

Performance Tuning: tuned, ktune, sar, vmstat, iostat, iotop, gnuplot, rrdtool, POSIX resource limits, resource control groups (cgroups), hardware profiling (lscpu, lspci, lsusb, lsblk, x86info, getconf, dmidecode, sosreport, numactl, I/O Scheduling), software profiling (strace, ltrace, valgrind, perf, systemtap), cpuload, irqbalance, tune2fs, blockdev, qperf, IPC resource limits (ipcs, shared memory, message queues, semaphores), network (latency, bonding, link aggregation, jumbo frames), huge pages, overcommit, swappiness, powertop, ksm tuning, nmon, dstat, htop, atop, ps mem, findmnt, bmon (bandwidth monitor), ss (socket monitor), netstat

Backup/Recovery: Symantec NetBackup, EMC NetWorker

Web: Apache, HTML, Java, Tomcat

Database: MySQL/MariaDB, Oracle

EXPERIENCE:

UNIX Engineer

Confidential, El Dorado Hills, CA

Responsibilities:

  • Performing system management and operations support for system migrations and decommissions.
  • As well as audit remediation and application retirement. Perform QA on servers being migrated with remediation of any issues. Also including support of UNIX/Linux environment (both physical and virtual).
  • Keep databases of server inventory and management software up to date, including CMDB, RHN Satellite, RackTables, DNS and IdM/IPA.
  • Development of shell scripts to automated process in the environment.
  • Large number of Web, App and Database server migrations from current datacenters to new colo datacenters.
  • Decommissioning of servers that are retiring or being replaced by servers in the new datacenters.
  • Decommissioning of applications that are being retired or migrated to new platforms in the new datacenters.

Linux System Administrator

Confidential, Rancho Cordova, CA

Responsibilities:

  • Responsible for the installation and integration of Red Hat Enterprise Linux, CentOS and SuSE Linux Enterprise Server systems and virtual machines.
  • Ensuring compliance with enterprise standards, security standards and auditing policies.
  • Deployment of Linux systems (physical and virtual) for several projects including SAP, DNS, FTP, Clarity, web server and database deployments.

Linux System Administrator

Confidential, El Dorado Hills, CA

Responsibilities:

  • As a member of the build engineering team, I was responsible for the Installation, integration of Red Hat Enterprise Linux servers. Installation and integration of VMware virtual machines running Red Hat Enterprise Linux. Ensure compliance with CIS hardening standards.
  • Deployment of RHEL templates and VMs for many projects including data processing, monitoring, inventory, secure file transfer and infrastructure.
  • Including CMS Edge, Symantec O3 IDLink, FileNet Uplift / Auto Auth, Sterling / SFTP, NetFlow, SCRM, Splunk, RackTables, ILMT.

Enterprise UNIX/Linux System Administrator

Confidential, Sacramento, CA

Responsibilities:

  • Installation, integration and management of multi-platform UNIX/Linux servers into an enterprise environment. Installation, integration and management of data backup/recovery solutions.
  • Management and configuration of VMware virtual machines running Oracle/Sun Solaris x86/64, Red Hat Enterprise Linux, CentOS and Oracle Enterprise Linux Server.
  • Ensure compliance with DoD IAVA and STIG requirements.
  • System preparation for DoD audit process. Patching of the operating system and package updating.
  • Support of end user applications on both UNIX and Linux servers.
  • Storage and file system management.
  • Support of shell scripts designed to generate reports and print to a wide variety of printers.
  • Follow business process including change control and incident/problem management ticketing system.
  • Coordinate installation of applications and oracle databases with application support personnel and database administrators.
  • Provide support to applications developers, operations, and end-users when required.
  • Maintain UNIX user accounts and enforce enterprise security policy.
  • Some assistance in managing local Microsoft Windows 2003/2008 servers.
  • Completion of several projects involving the installation of new UNIX/Linux servers into the data center.
  • Several projects involving the configuration of virtual machines. Installations and upgrades of backup software.

Field Applications Engineer

Confidential, Chatsworth, CA

Responsibilities:

  • Installation and integration of Confidential technology into existing data center environments throughout the Sacramento and San Francisco areas.
  • Management of high density Confidential storage products that are scalable to petabytes in size and can span multiple racks.
  • Management of UNIX, Linux or Windows 2003/2008 servers.
  • Network management of Confidential systems and storage products.
  • Troubleshooting and analyzing of system and application logs to identify issues, or potential issues, with Confidential technology. Attend weekly meetings with clients to discuss issues discovered during the week and their solutions.
  • Follow documented procedures and develop new documented procedures for new technology installed in the data center environment.
  • Perform routine auditing of Confidential technologies, systems and software, in each data center environment.
  • Detailed analysis of installed Confidential products in order to determine ways of improving performance.
  • Utilize incident/problem management software, salesforce.com, to track status of current issues.
  • Remotely monitor, analyze and resolve issues, with Confidential technology in various data centers, from my home office.
  • Completed several projects involving the installation of new Confidential technologies in different data centers for different clients.
  • Accomplished several projects involving upgrades to Confidential technologies, whether hardware or software in nature.
  • Many of these projects included installation and configuration of networking technologies such as switches and bridges.
  • And extensive use of fiber optic cabling to Confidential storage products.

UNIX/Linux System Administrator

Confidential, El Segundo, CA

Responsibilities:

  • Management of enterprise multi-platform client/server network environment with numerous isolated network segments, separated by government program groups.
  • Installation, integration and management of multi-platform UNIX/Linux servers into an enterprise data center or into individual government program groups, located in various buildings.
  • Managed Red Hat Enterprise Linux, CentOS and SuSE Enterprise Linux platforms.
  • Installation, integration and management of enterprise class storage products in the data center, whether NAS, SAS or SAN.
  • Installation, integration and management of data backup/recovery solutions, including large media libraries, into the data center and individual government program groups. Management of system security and file system security policies.
  • Analysis of systems in order to determine ways of improving performance.
  • Installation, integration and management of all user applications, tools and compilers used in their individual government program groups.
  • This includes management of all hardware and software licensing.
  • Development of UNIX/Linux shell scripts to automate routine tasks and information gathering and reporting.
  • User account management in the enterprise data center and in individual government program groups.
  • Follow business process including change control and incident/problem management ticketing system.
  • Coordinate installation of applications and oracle databases with application support personnel and database administrators.
  • Maintain UNIX user accounts and enforce enterprise security policy.
  • Provide support to applications developers, operations, and end-users when required.

UNIX/Linux System Administrator

Confidential, Bakersfield, CA

Responsibilities:

  • Management of enterprise multi-platform client/server network environment with numerous network segments.
  • Installation, integration and management of multi-platform UNIX/Linux servers into an enterprise data center.
  • Installation, integration and management of enterprise class storage products in the data center, whether direct attached, SAS or SAN.
  • Installation, integration and management of data backup/recovery solutions, including large media libraries, into the data center. Installation, integration and management of all user software applications.
  • This includes management of all hardware and software licensing.
  • Analysis of systems in order to determine ways of improving performance.
  • Development of UNIX/Linux shell scripts to automate routine tasks and information gathering and reporting.
  • User account management in the enterprise data center.
  • Follow business process including change control and incident/problem management ticketing system.
  • Coordinate installation of applications and oracle databases with application support personnel and database administrators.
  • Maintain UNIX user accounts and enforce enterprise security policy.
  • Provide support to applications developers, operations, and end-users when required.

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