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Linux Engineer Resume Samples
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0-5 years of experience
Maintained 50+ Amazon Linux instances for Cloud-based social media application with 100% uptime expectation
- Implemented, supported, and maintained all network, firewall, storage, load balancers, operating systems, and software in Amazon’s Elastic Compute Cloud.
- Established backup policies, wrote scripts, and implemented schedule to comply with availability needs of all instances
- Implemented monitoring and wrote monitoring scripts specific to each instance
- Support for 3-tier Amazon Web Services cloud application including the following: Apache, Tomcat, Solr, Cassandra DB
- Established and maintained Elastic Beanstalk development and testing environment.
0-5 years of experience
Designed and implemented multi-level database for automated collecting and analyzing firmware issues.
- Designed, developed and led deployment of fully redundant Fibre Channel subsystem for main product (kernel module modification/recompilation).
- Created fully automated process for building firmware releases (shell scripting / automake / ant)
- Provided 3rd level support for all Linux-related issues.
- Created custom Kernel builds with partially substituted source.
- Worked with RPM sources (patching and recompiling).
- Coordinated resolving all networking issues.
0-5 years of experience
Sole Linux Engineer responsible for over 100 Red Hat Linux (RHEL) systems running mission critical applications.
- Installed, configured and maintained multiple Red Hat Satellite Servers, and custom repositories.
- Handled patching, upgrading and IAVAs.
- Designed and implemented High Availability (HA) clusters using shared file systems.
- Built an entirely new infrastructure during a data center migration, including seamless integration with Windows and Unix systems.
- Wrote, debugged and deployed custom RPM packages, code and scripts.
0-5 years of experience
- Managed network operations, security, and Linux/Win2000 server farm infrastructure including Dell, VA Linux, Cisco, and Compaq hardware.
- Managed MySQL, Apache, Sendmail, and XSTOP applications.
- Implemented security policies, monitored unusual traffic patterns, bandwidths, and vulnerabilities.
- Solved technical problems in high-pressure situations as the primary escalation point for high-priority, complex issues and outage recovery.
- Provided custom solutions for Unix and NT platforms using Perl/CGI, PHP, Shell, JavaScript, and HTML.
- Installed, configured, and maintained Nokia/Checkpoint firewall products at UUNet.
- Saved the company $25,000 per month in dedicated hosting fees by successfully relocating and installing all Unix server and Cisco hardware from AT&T in CA to UUNet collocation facility in GA.
0-5 years of experience
Operationalized Linux as the Preferred Platform for [company name]
- Created Automated Provisioning and update processes using integrated OS Tools
- Implemented Configuration Management Solution to ensure consistency across server builds
- Co-Developed Centralized Provision and Configuration Tracking Web Interface
- Developed Automated Build Process monitoring systems
- Team was credited with saving over $50 million dollars and $0.02 per share of common stock
- First Platform to pass systems audit with Generally effective rating. (First Audit)
0-5 years of experience
- Evaluating remote site current network infrastructure and monitoring network utilization and troubleshooting problems.
- Build, configure and deploy VMs and templates. Completed Physical-to-Virtual (P2V), Virtual-to-Virtual (V2V) and Virtual-to-Physical (V2P) migration of Linux servers from VMware, Xen and legacy hardware.
- Designed and implemented network upgrades for projected network growth, maintaining network bandwidth as per requirement.
- Worked with Linux, Storage and other IT departments to ensure smooth processes including providing status reports to upper management, detailing deliverables and overall project status.
0-5 years of experience
Built and maintained Red Hat Enterprise Linux (RHEL) Servers on 3 networks (2 classified, 1 unclassified)
- Configured RHEL servers, including creating configuration menu and scripts to make the process more efficient and reproducible.
- Installed and maintained a RHEL satellite server, Apache web server and sftp server.
- Wrote and maintained documentation on servers, etc.
- Configured authentication methods for RHEL and windows ad servers.
0-5 years of experience
Provide Level 3 support for over 2500 Linux servers
- Configure Linux servers to access SAN and NFS
- Create and maintain scripts using shell and perl to simplify administration
- Created process to save over 30 minutes per server for Linux server
- Engineered and Implemented Corporate Linux Patching Solution
0-5 years of experience
Implemented remote upgrade and data synching mechanism for their mobile devices as well maintenance and improvement of all aspects of device behavior.
- Completed the three month contract during which a Debian repository was built to support their Asus700 and Asus900 platform and GPS, WIFI, GSM and 3G devices.
- Compiled device drivers for each device, built custom Linux kernel and supported source code in subversion.
- Configured and maintained build environment for debian installer and automated build related tasks.
- Implemented using apt, debian, Symbian, subversion, embedded linux, perl, rsync, ntpdate, clocking, device drivers & make and gcc.
10+ years of experience
Senior UNIX/Linux System Engineer for a software company that provided software solutions for newspapers, nationally and internationally. Lead UNIX/Linux administrator, providing direction and training to other UNIX/Linux administrators within company and externally to customers. Served in lead role in providing infrastructure design, and supervised and provided infrastructure direction and training to other members of UNIX/VMS team. Deployed new servers and support to existing servers in a Cloud environment for 2500+ end users. Cloud server support consisted of approximately 50 Linux servers, 20 Windows Servers, and a Netapp storage area network solution. Implemented monitoring and alerting solutions, high-availability solutions, and disaster recovery solutions. Provided UNIX/Linux and database support for over 400 customers with on-premise servers. Collaborated with multidisciplinary teams nationally and internationally, managed cases, and served as ‘go to’ for complex technical issues that arise.
- Served in lead role for new technical projects to provide analysis for total cost of ownership, configuration, testing, and deployment methods
- Provided extension system design and configuration for Enterprise level UNIX/LINUX servers including network and security recommendations
- Collaborated with sales team during the sales process with potential customers in discussions relative to hardware configuration, application configuration, and network/security requirements
- Traveled worldwide to assist customers with deploying new server installations and provide on-site training on UNIX/Linux system administration, Progress database administration, and application configuration
- Participate in 24x7x365 support for organization
- 22 years UNIX/Linux administration, 17 years Progress database, 10 years of leadership with UNIX/Linux environments, and 4 years of management experience
0-5 years of experience
- Wrote, maintained, reviewed and documented modules, manifests, Hiera configurations and Git repositories for Puppet Enterprise on RHEL and SLES platforms.
- Managed infrastructure for configuration management and version control.
- Trained and supported Linux engineers in the use of the company’s Puppet infrastructure.
- Provided infrastructure support for SAP Linux systems.
0-5 years of experience
Installation and support of Red Hat Linux 5.x, and 6.X servers for both production and development environments.
- Supported and configured VMware ESX and VSphere servers instances for virtual Red Hat and Solaris
- Installed Java, Perl, C, and C++ compiler installation project for application and development servers
- Installed Veritas Volume Manager for mirroring and raid level configurations on EMC storage.
- Installed Veritas Cluster Server 6.0 for automatic fail over of servers.
- Installed/Configured Apache, PHP, And MYSQL web server configurations.
0-5 years of experience
Contracted to lead company effort to migrate from Solaris to Red Hat linux.
- Designed, implemented, documented, and manages Red Hat Satellite infrastructure in order to automate the provisioning, configuration, and patching of over 500 Red Hat Linux systems.
- Responsible for the engineering and documentation of Oracle RAC cluster solutions with an emphasis on kernel tuning to ensure databases meet and beat business requirements for response times and reliability.
- Automated Red Hat server build process resulting in a bare metal to customer ready server time of 10 minutes
- Evaluates, recommends and implements hardware and software for corporate technology infrastructure.
- Served as primary engineer for the disaster recovery site engineering and oversight team.
- Contributes to the development and implementation of security solutions supporting PCI, SOX, an normal corporate security concerns.
- Worked with: RHEL 5/6, RHEV, KVM, VMware, Infiniband, Puppet, Red Hat Satellite Server, Kickstart, NTP, sssd, SAN, Oracle ASM, Oracle RAC, Tripwire, yum, Solaris, OpenSCAP, multipathd, LVM, LDAP, Solaris Zones, Bash, Python, Snort, nmap, NetBackup
0-5 years of experience
Installed and configured server for MySQL, APACHE, and PHP.
- Created partitions and modified Logical and Physical Volumes
- Created and used kickstart scripts for remote OS installation
- Manually configured network configuration for standalone production systems
- Resolved POSTFIX mailing problems.
- Installed and configured RALUS/ Backup Exec
- Provided suggestions on managing Linux environment.
- Monitored system usage and system performance.
0-5 years of experience
- Maintained, updated, and deployd multi-node OpenStack clusters for internal development use
- Rebuilt OpenStack cluster under Red Hat OSP 4
- Assisted in deployment of a number of Red Hat OSP 5 clusters
- Wrote automation scripts in bash and python using the OpenStack REST API to monitor and test infrastructure provisioned on our OpenStack cluster
- Automated the deployment of centralized authentication using Active Directory for Linux infrastructure
- Wrote script to standardize Dell iDRAC configurations and integrate them with Active Directory authentication
10+ years of experience
As Linux SME (subject matter expert), I mentored and provided technical support to the administrators responsible for the day to day operations of Linux-based infrastructure and applications.
- Supported the building and deployment of a new toyota.com website, based on RHEL, apache and Jboss running under VMware, replacing the previous Solaris/apache/Oracle platform.
- Designed, planned and implemented a project to virtualize the Unix infrastructure services, achieving a 4:1 reduction in physical server count while improving performance and manageability using lightweight OS-level virtualization. (Linux Containers, similar to Solaris zones)
- Designed and deployed the Toyota Internet mail gateway system, based on postfix, amavis, clamav, spamassassin, perl, php and mysql, which provided spam and virus filtering for 15,000 users and carried 60 million SMTP sessions per month before a large portion of the messaging was moved to an external cloud.
- Designed/deployed the Internet-facing DNS system serving over 1000 domains and multiple DNS views which demonstrated the capability of handling 30,000 (cached) requests per second with negligible CPU loading.
- Planned and executed a pilot migration from NIS to LDAP for central management of Unix users; Set up replicated 389 server on RHEL6 for LDAP authentication; Set up SSSD on the client side to provide caching of credentials for enhanced fault tolerance, resulting in improved reliability, performance and manageability.
- Built system monitoring service based on the open source version of big brother monitor with bbgen enhancements and additional custom scrips. The setup monitors two data centers in a redundant, active-active configuration, with fail-over of the notification agent if one data center is down.
- Wrote shell scripts and cron jobs to provide automated 24/7 file transfer, encryption and decryption services for confidential data, using gpg, bourne shell, ssh/scp/sftp, ncftpget, ncftpput, samba, autofs and other native Linux facilities.
0-5 years of experience
The day to day operation of the team is my primary responsibility, which includes work assignments, liaising with application teams and project planning.
- Our team is self-contained and responsible for administering operating systems (Solaris, HP-UX and Linux), storage arrays (Hitachi, HP and Sun) and networking (Cisco switches).
- Executed plan for storage growth by assisting in installing, configuring and provisioning Hitachi AMS2500 storage array and related performance and management tools.
- Created new Solaris.
0-5 years of experience
Engineered and implemented a secure, reliable, scalable, performant and cost-conscious presence for the Fool’s international web sites. Utilized Amazon Web Service’s (AWS) command line interfaces, auto scaling, CloudWatch, Elastic Cloud Computing (EC2), Relational Database Service (RDS), Simple Storage Service (S3), CloudFront and Virtual Private Cloud (VPC).
- Automated and scripted all the tasks and configurations for the international web site environments. Used Salt to maintain consistent and manageable configurations. Used bootstrapping techniques to apply correct configurations for fresh auto scale web servers. This automation provided the capability to quickly roll out new environments for emerging markets.
- Moved towards Continuous Integration (CI) practices for software deployment with Jenkins and Fabric, following the software development principle of quick to fail deployments. The combination of these tools provided fast, scalable, reliable and trackable deployments, unit tests and rollbacks.
- Ensured web site performance by engineering and implementing server resources, Apache configurations, MySQL tuning, and (Alternative PHP Cache (APC) tuning. Also by utilizing Content Delivery Networks (CDN) and auto scaling for web servers.
0-5 years of experience
Our team managed all servers for Office Depot. 900+ servers.
- OS and hardware administration. 24/7 operations.
- Handled all issues from hardware diagnostics to OS issues, LVM and VMWare virtual servers.
- Server installations, config, networking, NAS configurations, patching, etc.
- Extensive use of 3rd party tools: BMC BladeLogic, Tivoli, Remedy, AMP, TeamTrack and others.
- Assisted managing a team of 14 UNIX Linux engineers in the US and overseas. Work assignment and keeping all work within SLA time constraints. Generated daily reports in Excel.
- Management of all server patching and coordination between Developers, DBAs and UNIX Linux Engrs.
0-5 years of experience
Configured and supported high frequency Linux trading applications
- Performed software rollouts and served as front line support for traders and proprietary trading systems
- Performed Scripting using Perl, Bash, and MySQL
- Worked directly with traders to resolve issues; required intermediate knowledge of trading/markets
- Arranged software to maximize performance in the markets
0-5 years of experience
Primary function includes assisting internal customers with the design and engineering solutions of Rhel virtual servers to meet business objectives. Implementation involved performance considerations, proper SAN storage allocation for HADR, as well as tuning kernel parameters to meet specifics of the build correlative to its role.
- Day to day support includes working with network engineers, storage technicians, dba’s and virtualization team to assist in providing the proper environment for the builds.
- Hands on experience with PXE boot and kickstart of rhel6.x images to provision the OS in an ESX 5.0 environment acquired.
- Responsibilities also include data center support as well as store side server support for some 2200 stores across the United States.
- Use of a number of tools including HPSA to assign various software policies required by the business unit to install application software
- Served as primary DR SME for Linux group including moving servers in and out of DR as well as building Oracle database and application servers used for testing
- Major accomplishments include the rollout of VM ware tools across the stores as a precursor to an upgrade of the OS to the current revision nationwide.
0-5 years of experience
Engineer Linux solutions for the wealth Management division of Merrill Lynch. Work with line of business to engineer applications solutions within a Linux platform.
- Engineering a solution to migrate all Oracle Solaris server to a Redhat Linux (RHEL5/RHEL6) platform.
- Work with Application vendors to solution packaged applications within a Linux platform.
- Responsible for postinstall process on all Redhat Linux Servers.
- Authenticate Redhat RHEL5/RHEL6 servers against Microsoft AD domain using Quest Authentication Services software.
- Work with Oracle and Sybase DBAs to engineer Linux platforms.
- Work with Oracle DBA’s to engineer a Oracle RAC Solution
0-5 years of experience
Tier-3 engineering support to the operations team for VMware ESX, Linux, Solaris, SAN and NAS.
- Engineered/wrote DNS/IPAM replacement for QIP / Bluecat.
- Migrated 500+ Linux/Solaris systems from Lehman Brothers in New York to [company name] during a 3 day weekend with no downtime to the business.
- Wrote custom perl scripts to automate day to day tasks.
- Engineered and documented Tier-2/NAS solution with Isilon IQ 12000’s.
- Standardized and automated OS builds via PXE, Autoyast, Kickstart and Jumpstart.
- Migrated internal DNS zones in excess of 200,000 records from lehman.com to alservices.com after the Lehman bankruptcy.
- Wrote custom monitoring scripts to tie into our existing monitoring solution.
- Cisco Nexus 5010/5020 configuration, including 2148/2248 Fabric Extenders.
0-5 years of experience
Oversee the overall operations of 4000+ servers.
- Monitor servers to maintain efficiency of operations.
- Respond immediately with effective long-term solutions when a problem is found.
- Maintain services, achieving 99.9% uptime according to company SLAs.
- Built database to track server crashes and generate graphs that follow server trends in order to discover potential problems early and prevent down time.
- Automated server maintenance to be more time efficient and increase employee productivity.
- Organized servers into monitoring groups to prevent data loss and to aid in timely restoration of data in case of server crashes.
0-5 years of experience
Responsible for solving complex computer problems and identifying innovative solutions using vast knowledge and experience with complex system engineering.
- Support the automation of the Visa private cloud computing infrastructure and provisioning of the instillation of various Linux operating systems.
- Patch/upgrade OS and software on Red Hat Enterprise 5.x, 6.x and 7.x using RedHat Satellite server.
- Facilitate/troubleshoot the automation processes and provisioning of different operating systems using VMware vSphere/vCenter.
- Write and publish VMware PowerCLI, Bash and Perl scripts to facilitate the automation process and provisioning of a variety of Virtual Machines and Virtual Appliances, such as RHEL, CentOS and Debian.
- Troubleshoot complex automation process issues with minimal supervision.
- Resolve customers’ issues with the Visa Orchestration using manual interventions that compliment the overall Visa flow.
- Debug flow and automated provisioning issues using HP Operations Orchestration (HPOO).
- Monitor and resolve incidents and problem tickets using IBM Remedy (Viper).
0-5 years of experience
Scripting in Perl, and Shell Scripts (Ksh, Bash)
- Facilitate systems build and build-standards for SUSE and RedHat Servers.
- Documented technical build procedures.
- XML Programming building AutoYaST control files.
- Created Menu-driven bootable ISO’s of RedHat Kickstart builds.
- Perform third level troubleshooting for Linux Systems.
0-5 years of experience
Resolve client issues through troubleshooting, research and root cause analysis as needed
- Document complex resolutions to serve as a guide for the rest of the global team when they encounter similar situations
- Perform remote and onsite administration of servers, to include performance monitoring and analysis
- Perform standard configuration, management, and maintenance tasks for related file systems, networking, clustering, storage and applications
- Infrastructure monitoring integration using Nagios in the clients’ IT environment
- Support cross functional teams with Linux (RHEL) and network related issues actively and proactive
- Support internal managed services team and external customers/clients
- Build current and establish new relations with customers/clients to seek business and growth for their business needs
0-5 years of experience
Set up and managed Linux servers (SUS, Redhat, Debian, Ubuntu)
- Managed Data Center installing of servers, switches, routers, firewalls and VPNs in 2 stateside locations and one in London
- Network Security Manager
- Set up Share Point and trained users
- Provided User provisioning for UNIX/LINUX, and Windows Active Directory
- Set up DNS, DHCP
- Set up and managed MS SQL Server
- Set up DNS, DHCP
- Used Putty for SSH, FTP, and Telnet
0-5 years of experience
Monitor system performance via shell scripts, System Center Operations Manager, and Solarwinds.
- Manage and deploy servers utilizing Red Hat Satellite Server.
- Manage and configure SAN storage devices using Red Hat DM-Multipath and EMC Powerpath
- Analyze user requirements, procedures, and problems to improve system response.
- Troubleshoot hardware, software, and network related problems.
- Manage network infrastructures, including SNMP, DNS, and DHCP.
- Design an infrastructure to effectively and centrally support multi-server/multi-datacenter environments using Redhat Satellite server for deployment and patch management and Identity Management for managing users and computers.
- Collaborate with the Oracle and Storage teams to improve OS reliability and stability in both a RAC and stand-alone configuration.
- Identify process improvements to reduce the reactive nature of the team by pro-actively monitor servers.
0-5 years of experience
Engineer and support RedHat Linux In a VMware environment.
- Deployed XEN virtualization client side monitoring solution.
- Performed User and group management in an LDAP Infrastructure.
- Participate in team 24×7 on-call rotation.
- Server vulnerability patching.
- Design and build RedHat Linux servers for Oracle Databases.
- Storage Engineering and Provisioning to Linux environment
- Managed backup and recovery solution using Legato.
0-5 years of experience
Manage and deploy several products and versions
- Automate builds and deployments while utilizing shell scripts and CI server
- Upgrade infrastructure for new version of software
- Coordinate builds and deployments with stakeholders
- Manage repositories
- Created Java application with scheduler to update builds on client servers
- Trouble-shoot broken environments
- Technologies
- Java, jQuery, Maven, Git, Stash, Jenkins Continuous Integration Server, Jira, Linux, Tomcat, Perl, BASH, PostgreSQL, MySQL, TortoiseGit, IntelliJ
0-5 years of experience
- Part of the Chick-fil-a Data Center Engineering team. Taking care of both their data centers at Corpate Headquarters and Sun Guard.
- Working on a daily base with vSphere and VMWare ESX taking care of the virtual machine that run Linux. Setting up templates base on RHEL 5. Using the template to deploy new servers. Deploying OVF templates from 3rd party vendors.
- Build and deploy a Red Hat Satellite Server. This included set up all subscript channels. Registering all Red Hat Linux servers to it, this is total over 200 servers that are a mix of RHEL 4, RHEL 5 and RHEL 6.
- Working with Red Hat Linux 4 and 5 on a daily basic.
- Creating scripts to help take care daily task.
- Using the Satellite server to maintain and patch all servers.
- Work on tickets; these are set up new users, fixing issues with shell; monitoring application during testing.
- Working on standards to turn off access to root account and making the servers more secure. Setting up sudo and looking to single sign on application.
- Work with Zenoss. Working on any alerts that come from the monitoring server.
0-5 years of experience
Linux Support – PXE Kickstart Installation, Configuration, Security Errata and patch Maintenance of new and existing Linux Desktop and Linux Server SOHO machines, Logical Volume Management (LVM), Full Disk Encryption with Linux Unified Key Setup (LUKS), software RAID, Common Unix Print Server (CUPS), OpenSSH Secure Shell (SSH), Name Service Switch (nsswitch), Samba file server (CIFS), and NTP.
- Monitoring – Nagios (PING, Net-SNMP, SSH, NMAP host alive), MRTG, Munin, Cacti, OSSEC, Samhain, syslog-ng, rsyslog, logwatch, and logcheck with regular expression (REGEX) filtering of irrelevant log messages.
- Windows Support – PXE Unattended Installation, Configuration, Maintenance of new and existing Windows XP and Windows 2000 Desktops, Cygwin, OpenSSH Secure Shell (SSH), unattended EXE or MSI package deployment through either Unattended or wpkg.
- Network configuration – ISC BIND, ISC DHCP, and iptables/netfilter firewall rule set for Ipv4 and Ipv6 security, netsh firewall security for Windows XP systems.
- Network security – Freeradius 802.1x TLS wireless authentication, in house Certificate Authority (CA) and client server certificates for TLS wireless security and TLS security for other client server daemon/services.
- Policy enforcement and Security – System configuration policy enforcement through Cfengine2 and Puppet2.7, Vulnerability scanning with Nessus and OpenVAS.
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Last edited by: Gabriela Barcenas, CPRW, Content Writer II -
Gabriela Barcenas
CPRW, Content Writer IIGabriela is a Certified Professional Resume Writer (CPRW) and career adviser. With 10 years of digital media experience and five years of resume writing expertise, her publication history includes fashion, education, travel, social justice, equitable design and career advice.
