system engineer resume example with 7+ years of experience

Jessica Claire
, , 100 Montgomery St. 10th Floor (555) 432-1000,

Seasoned systems engineer/administrator with about six (6) years of experience in a fast-paced Unix/Linux environment and expertise in several flavors of Linux including Red Hat, CentOS, and Ubuntu. Excellent in desinging, installation, configuration, developing, maintenance, testing and systems user administrations skills. Strong implementation guides for Vmware and statistical data analysis. Advance troubleshooting while applying Security Technical implementation guide (STIGs). Serve as System Engineer responsible for installation, system maintenance,addressing change management requests and troubleshooting of over 90 Red Hat Enterprise Linux servers, located internally and across 10 remote locations. Create and manage several access controls lists (ACLs).
Determined, highly motivated, team player and adapt quickly to any situation to provide efficient secured systems, generating solutions of great importance with the various engineers. Structured, detail oriented and skilled with addressing clients and stakeholder needs.

Expected in 11/2015 to to Bachelor of Science | Computer Science/Statistical Data Analysis University of Buea, Cameroon, GPA:
  • Security+ (CompTIA Certified)
  • Scrum master(Certified)
  • Cloud Security Knowledge(Certified)
  • Red Hat Certified System Administrator (processing)
  • Ansible (processing).
  • System security hardening in Linux/Windows
  • Patching & Live upgrade | Yum Repository management & maintenance
  • Manage ACLs/Firewalld/iptables on Linux/Windows based systems
  • Change Request Management(JIRA/REMEDY/ServiceNow)
  • Identify applications/hardware/OS problems
  • Create & Manage Virtual systems on Esxi/Vcenter | Manage Vmware Esxi
  • Deployed OVF templates to Esxi host
  • Apache Virtual Hosting (Vhost) | OpenSSH, TCP/IP, Protocols
  • Password-less SSH | Generating SSL Keys
  • Crond jobs | configure Chronyd
  • Data backup processes and containers | storage management(LVM)
  • Monthly queries run on oracle database 18c (MySQL)
  • Building ISOs | Export VMs on Esxi | Kickstart expertise
  • Servers/Network Configurations
  • Troubleshooting (servers, switches, routers, firewall etc)
  • SCP, SFTP ,Winscp files transfer | Multifactor Authentication installation
  • Log management(syslog) in Linux/Windows | directory collaboration
  • Design & deploy servers such NFS, rsyslog, mysql, dns on Linux systems | Nagios/Zabbix system monitoring
  • System Security checks (STIGs/Scap-work bench) expertise | Window servers STIGs | Vulnerability management (Nessus/Webinspect)
  • User account management(Linux/Windows)
  • Bash/shell scripting.
01/2019 to Current System Engineer 22Nd Century Technologies | Austin, TX,
  • Providing effective resolutions to issues and escalated problems with knowledgeable support and quality service.
  • Providing assessment, systems analysis, troubleshooting and resolution.
  • Using bash scripting in editing/running/writing scripts and automation of tasks such as backups as need be.
  • Supporting routers,switches and firewalls administration, including interface configuration and routing protocols, maintaining gateways, and monitoring systems.
  • Troubleshooting network such as router, switches and firewall issues as they occur and escalates as necessary.
  • Responsible for ensuring the stability, integrity, and efficient operation of the production infrastructure server components.
  • Understanding of windows protocols such as WinRM
  • Hands-on administration of Linux/Unix systems. Ensuring services and systems are properly configured according to best practice.
  • Designing of flexible, robust, secure, and scalable systems.
  • Design, configure, applying STIGs to Windows and Linux systems for security and high performance
  • Maintaining an overall vision and direction for the infrastructure for high performance and business continuity
  • Responsible for generating self signed certificates for web servers
  • Installing and Configuring of OpenSSH on systems
  • Optimizing, managing, and monitoring real-time events from devices like firewalls, servers, workstations by monitoring logs, to stop or prevent any malicious activities such as unauthorized access.
  • Generating certificate signing request to have secured web servers
  • Strong knowledge of the OSI (open system interconnection) model which helps in the better understanding company's network architecture.
  • Managed patching on Red hat 7, Oracle 7, CentOS 7 servers as part of security hardening.
  • Oversee the design and architecture of company's appliance-based products.
  • Oversee change management and configuration management of the Production environments.
  • Designing, analyzing the requirements, and implement an effective system monitoring solution in Zabbix and Nagios.
  • Assuring minimum downtime and optimal planning through proactive planning and regular reviews of the overall production environment.
  • Developing project implementation documentation including all technical information needed for the successful implementation of a project.
  • Documenting all components of the infrastructure and ensure they are up to standards.
  • Strong coordinating, organizing, teaming, and communicating abilities. Work individually and in a group setting.
  • Following instructions on various tasks including but not limited to building POA&Ms, Data calls, and Network structure.
  • Reviewing and updating POA&Ms. Assessing threat and vulnerability information from all sources (both internal and external) and promptly applying applicable mitigation techniques.
  • Generating ISO files used for system installation with the appropriate patches.
  • Examining events logs for irregularities, identified irregularities, and then Experience reported as incidents, initiate incident response process to mitigate these irregularities.
  • Setting up user accounts, network and Datastore Management -Vmware Management
  • Effective orientation of employees
  • Troubleshooting various DNS,IP routing, latency and connectivity issues
  • Documenting network problems and resolution for future reference.
  • Using network troubleshooting tools(tcpdump,tcp traceroute,Nmap) to resolve complex network issues
05/2016 to 01/2019 Linux System Administrator Gan Plc | Irvine, CA,
  • Installed, configured, and managed proprietary applications on Unix/Linux servers. Create and extend physical volumes, volume groups.
  • Resized existing logical volumes for additional space requirements.
  • Ensured and managed documentation of organization hardware such as firewall, switches.
  • Ensured services and systems are properly configured according to the organization policies and procedures
  • Used Hyper-V to manage memory, CPU, disk size and network on windows servers.
  • Monitored, tuned and troubleshoot systems performance, window servers on the network
  • Added peripheral devices on servers as needed. Ran security checks on windows systems.
  • Managed user account and group collaboration.
  • Performed vulnerability Assessment using Nessus/WebInspect as part of Continuous Monitoring Open, track and close trouble tickets as well as input trouble calls into ticket tracking system (Remedy).
  • Administered Red Hat Systems managed backups and monitored CPU and Disk Usage.
  • Monitored logs for unauthorized root usage and access.
  • Used remote tools such as remote desktop, Scap-workbench Utility to analyze and resolve issues in multiple servers.
  • Monitored Unix/Linux servers load average, iostat, vmstats and general server health.
  • Performed system monitoring; CPU, memory, I/O, hardware, jobs scheduling and processes management.
  • Troubleshoot user account issues and network related connectivity issues.
  • Created, managed user/groups, set password, permissions, account expiration, reset user passwords, administered users account security through monitoring login logs for repeated failed authentication attempts on both Unix/Linux servers.
  • Restricted access to files and directories using Access Control Lists file permissions.
  • Utilized the Vim editor in accessing file contents and securely modifying them to meet specific objectives.
  • Assigned file or directory permission and enabled group collaboration. Apache Virtual Hosting (Vhost), Redhat Opentshift.
  • Ensured security Hardening Red hat Linux 7 server.
  • Worked with other departments to resolve POA&Ms, gathering artifacts and creating mitigation memos, residuals risk memos and corrective action plans to assist in a closure of the POA&Ms.
  • Performed administration and monitored job processes Managed patching on Red hat 7 server using yum.
  • Monitored client disk quotas and general disk space usage.
  • Monitored and tuned system performance.
  • Used RAID as needed, introduced new servers to the network.
  • Maintained and troubleshoot network connectivity.
  • Answered, evaluated, and prioritized incoming telephone, voice mail, e-mail, and in-person requests for assistance from users experiencing problems with hardware, software, networking, and other computer-related technologies.
  • Developed core code modules, unit test tools and release notes for enhancements and bug fixes with the help of bash script and vim editor.
  • Responsible for installation, configuration of Linux servers using jumpstart and interactive methods with Kubernetes base ideology.
  • Security hardening and maintenance on various systems including firewall and SELinux configuration.
  • Yum repository management and client configuration on various servers.
  • Created set mounts points and user-mount points.
  • Restricted access to files and directories using Access Control Lists file permissions.
  • Performed data management using native Linux utilities for archiving and compression.
  • Configured DNS client on both physical and virtual servers.
02/2014 to 03/2015 Linux System Administrator Gan Plc | Chicago, IL,
  • Setup user accounts, permissions and passwords and defined network policies and procedures.
  • Installed, administered, configured, and maintained check-In applications including operating systems and related software.
  • Consistently supported all efforts to simplify and enhance the customer experience.
  • Created and managed user/group accounts.
  • Set user account expiration, password aging and permissions
  • Coordinated with internal departments to review existing integration capabilities, data sources and proposed solution designs for feasibility, cost and functionality.
  • Conducted and designed sessions with appropriate participation from architects and engineers.
  • Created and design detailed documents and functional specifications for new applications, services and enhancements to existing systems and services.
  • Collaborated to create configuration designs for design and implementation of various environments.
  • Created work effort estimates for new features and bug fixes for use in prioritization and release management.
  • Monitored system logs for unauthorized access, system errors, hardware failures and system health using native Linux tools and top.
  • Developed core code modules, unit test tools and release notes for enhancements and bug fixes with the help of vim editor.
  • Reviewed new development tools, application frameworks and testing tools for functionality and effectiveness.
  • Used establish change management processes, requiring operational procedures be performed with minimal client impact, (i.e. during the established maintenance window).
  • Integrated Linux systems into an Active Directory environment using SSSD/winbind.
  • Assisted database administrators to tune, configure and maintain databases serves in a variety of languages.
  • Troubleshoot hardware failures, opened trouble tickets with Jira and worked with engineers to resolve hardware problems.
  • Documented systems upgrades and configurations.
  • Used remote tools such as remote desktop, DameWare
  • Utility to analyzed and resolved trouble issues.
  • Designed, implemented changes and control policies and disaster recovery plans, lead troubleshooting efforts to restore functionality in the event of an outage.
  • Monitored and assisted in managing applications, device availability, network conditions and status, system reliability and performance, service and program maintenance and storage resources with Kubernetes.
  • Monitored system logs, performance monitoring and capacity planning in anticipation of system resource usage and needs.
  • Provided 'on call' support to resolve application issues after normal business hours.
  • Performed additional duties related to this position as assign such as meeting coordination.
Other skills




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Resume Overview

School Attended

  • University of Buea

Job Titles Held:

  • System Engineer
  • Linux System Administrator
  • Linux System Administrator


  • Bachelor of Science

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