Jessica Claire
Montgomery Street, San Francisco, CA 94105 (555) 432-1000,
Self-motivated Unix/Linux/Window professional seeking a full time position with an information technology company.
  • ServiceNow/REMEDY/JIRA
  • VMware/VSPHERE
  • WINDOWS 8, 2012R2, 2016
07/2019 to Current Linux System Engineer/Linux Security Administrator Raytheon Technologies Corp | Burnsville, MN,
  • Maintain and develop Proactively all Linux infrastructure technology to maintain a 24x7x365 uptime service.
  • Set and implement user access controls and identity and access management systems.
  • Monitor network and application performance to identify and irregular activity.
  • Perform regular audits to ensure security practices are compliant.
  • Deploy endpoint detection and prevention tools to thwart malicious hacks.
  • Employ Nexus to generate an inventory of your open source and third party components to determine potential security. 
  • Implement comprehensive vulnerability management systems across all assets on-premises and in the cloud.
  • Work with IT operations to set up a shared disaster recovery/business continuity plan.
  • Work with HR and/or team leads to educate employees on how to identify suspicious activity.
  • Provide of systems administration-related solutions for different project and operational needs.
  • Control closely tickets and work flow under tools such as ServiceNow, Remedy, and JIRA.
  • Keep best practices on managing systems and services across all environments.
  • Analyse of logging information for reporting of performance exceptions.
  • Monitor system performance and capacity planning as needed.
  • Manage, coordinate, and implement software upgrades, patches, hot fixes on servers, workstations, and network hardware.
  • Create and modify scripts or applications to perform tasks.
  • Design Windows 2012R2 and 2016 active directory and domain name services as well as group policies to suit our organization.
  • Provide input on ways to improve the stability, security, efficiency, and scalability of the environment.
  • Oversee the push of MacAfee agent through Ansible to all Linux servers to ensure proactive protection at all time.
  • Regulate IDM in order to apply SUDO policy on users based on a specific host or a group of hosts.
  • Supervise cluster servers to maintain good load balance and fault tolerance at all time.
  • Conduct virtual machines migration from premise to the cloud while considering cloud storage costs based on the available budget.
  • Collaborate with other teams and team members to develop automation strategies and deployment processes.
  • Mentor junior system administrators by getting them involved on different projects.
04/2019 to 10/2019 US Consultant Expert United Natural Foods Inc | Central Falls, RI,
  • Advise clients on new applications and how to deploy them in their environment.
  • Perform top level troubleshooting issues and sometimes teamed up with red hat support team to find quick solutions for P1 cases.
  • Coordinate with the cyber security team for best practices on systems hardening.
  • Keep a good track on Satellite and VMware license keys and their validation period.
  • Implement server templates on vSphere client based on the recurrent requirements for server build or deployment.
  • Enforce the VMware tools to be at the running state at all time in order to improve the performance and management of the virtual machines.
  • Conduct quarterly patches not only for enhancement but also to get rid of security issues and bugs.
  • Build Ansible playbooks and write scripts to automate tasks to save the company time and money.
  • Analyse Solarwinds alerts and reports, and make quick decision and recommendations to avoid chaos. 
01/2013 to 03/2019 Linux/Windows System Administrator Great Oaks Foundation | Toledo, OH,
  • Build, install, configure brand new virtual and physical servers, test, deploy RHEL 6&7, CentOS 6&7,  Solaris 9&10, servers to the network via standard or advance installation(kickstart). 
  • Create and modify user accounts and groups; and enforce passwords policy.
  • Conduct tuning on existing servers for example, increasing virtual memory via swap, increasing physical RAM, managing bottle-neck processes (ps, top, sar, glances, prstat, pgrep, kill -9, kill -15). 
  • Perform storage, disk, swap, volume management with (LVM, SAN/NAS, CIFS, SAMBA, NFS). 
  • Configure multipath on physical servers to achieve fault tolerance and load balance on block devices.
  • Maintain the cluster environment in good shape by ensuring fencing, resources, resource groups, and quorum are well defined. 
  • Install and manage packages using tools like pkgadd, pkgutil, yum, and rpm for archiving, compressing. 
  • Provision SSH key authentication to ensure safe communication between server and clients.
  • Construct Mail server Postfix on local network, and connect to it the null clients. 
  • Provide time synchronization between NTP server and clients.
  • Setup, configure, and troubleshoot TCP/IP, DHCP, DNS, SMTP, NFS, CIFS, and SAMBA servers in a multi-platform LAN.
  • Create automated backups using BACULA software or tools like RZINC, CPIO, and TAR in a simple bash shell script via crontab. 
  • Design Apache Web servers for some clients in a zone as well as local website applications.
  • Secure webservers by placing them in private directory for restricted access and secure them with SSL/TLS protocols.
  • Manage server environment with Ansible for automation and maintenance.
  • Introduce Window server to the domain controller, perform access control and permissions. 
  • Design virtual private network(VPN) as well as PUTTYGEN to encrypt communication among window servers.
  • Configure NAS (Free NAS) to create LUNs and attach to windows  2008 servers and to Solaris 10 or Linux servers using iSCSi.
  • Configure IPA/LDAP server and clients for single sign on or centralized login.
  • Connect clients to LDAP master server by using either authconfig-tui or authconfig-gtk.
  • Maintain TLS as an encryption tool between LDAP master server and client.
  • Employ sssd service as an authentication backend in LDAP master server and LDAP client.
  • Support and manage VMware ESXI, and Oracle VirtualBox hypervisors as well as all virtual machines being hosted.
  • Troubleshoot Unix/Linux servers for rogue line, file system corruption, boot loader corruption, initrd image, device driver, configuration, and password issues.
  • Escalate major incidents to Redhat Support Team by explaining the impact on the environment and creating and attaching the sosreport.
  • Update incidents and tasks on daily basis on Service-Now to keep customers informed on the resolution progress.
  • Provide server administration in the AWS cloud platform with services such as IAM, S3, EC2, CloudWatch, Route53.
  • Coordinate non-global zones configuration, installation; perform migration, testing, as well as NICS aggregation setup.
  • Create or modify MariaDB databases and tables, perform queries as well as backup and restore on databases, and tables.
  • Maintain work ethic and professionalism at all time when dealing with clients.
  • Engage in helping co-workers with their projects to meet deadline as well as providing training to those in need. 
01/2013 to 06/2013 Petroleum-Cementing Engineer Halliburton Energy Services | City, STATE,
  • Performed the cement slurry and pumping design.
  • Determined the volume of the lead, tail cement for surface, intermediate casing.
  • Estimated height of spacer and mud in squeeze, plug, liner, and multistage jobs.
  • Conducted safety meeting before the blending and mixing of cement and additives.
  • Compared my calculations with the customer before pumping schedule provided.
  • Acquired and Interpreted real-time data on ICEM and OPTICEM softwares.
  • Executed the rig-up and rig-down of equipments necessary for cementing job.
06/2009 to 06/2010 Student Linux Academy | City, ,
  • Learned the Linux fundamental tools.
  • Managed security services.
  • Operated running systems.
  • Configured local storage, network service, database service.
  • Created and configured file systems.
  • Deployed, configured, and maintained systems.
08/2007 to 04/2012 Math-Tutor Baltimore City Community College | City, STATE,
  • Assisted students with their homework in Algebra and Calculus.
  • Provided students with easier methods to solve word problems.
  • Conducted math workshop on the usage of scientific calculator.
  • Improved students focus on how to approach a given math problem.
  • Tested students critical thinking ability in physics based calculus probems.
Expected in 2012 Bachelor of Science | Petroleum and natural Gas Engineering West Virginia University, Morgantown, WV GPA:
Petroleum and natural Gas Engineering. Maintained 3.0 grade point average working full time. Certifications
  • TS (top security clearance) 
  • Red Hat Certified Specialist In High Availability Clustering
  • RHCE (Red Hat Certified Engineer)
  • RHCSA (Red Hat Certified System Administrator)
  • Petroleum and Natural Gas Engineer
  • SaFe training Completion
  • Many DHS security compliance certificates of completion

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Resume Overview

School Attended

  • West Virginia University

Job Titles Held:

  • Linux System Engineer/Linux Security Administrator
  • US Consultant Expert
  • Linux/Windows System Administrator
  • Petroleum-Cementing Engineer
  • Student
  • Math-Tutor


  • Bachelor of Science

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