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Senior Network Systems Engineer Resume

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Rancho Cordova, CA

SUMMARY

  • Multifaceted IT professional with over 20 years’ experience across various industries. Proficient in design, installation, administration, and troubleshooting of several operating systems platforms. Created and maintained applications & tools utilizing Perl and UNIX (bash) Shell.
  • Hands on experience with several systems and network monitoring and management applications including Nagios OpsView, Cacti, Graylog, Solarwinds NPM, HP OpenView NNM, and ManageEngine NetFlow Analyzer & DeviceExpert.
  • Experienced with configuration, installation, and maintenance of switches, access points, wireless LAN controllers, routers, content switches and firewalls. Experienced with design, build out, and troubleshooting of complex networks, systems & LDAP directories.

PROFESSIONAL EXPERIENCE

Confidential. Rancho Cordova, CA

Senior Network Systems Engineer

Responsibilities:

  • Responsible for maintaining, troubleshooting, and upgrading network infrastructure in four datacenter locations across the US. Supporting Cisco (Nexus 3xxx, CAT 29/35/36/45/49 xx, ASR100x), Mikrotik (RB, CHR, CCR), and Ubiquiti (UniFi & AirMax) hardware for both datacenter operations and client services. Manage all BGP routing for all sites which have blended internet solutions (multi - provider).
  • Develop custom Mikrotik scripts and rules to manage security and blacklist routing. Deployed Graylog server for central logging, implementing log collection from network devices, Linux servers, and Windows workstations/servers. Implemented a basic security dashboard, allowing level 1 staff to easily observe/react to incoming security incidents through Graylog.
  • Setup & configured Atlassian Confluence, Jira, and BitBucket for internal documentation, project management, and centralized repository of configurations & code. Address and manage systems and network security, including active attacks such as DDoS and hacking attempts. Actively manage and support both Hyper-V and OnApp virtualization platforms. Build, install, maintain, and troubleshoot Ubuntu/CentOS Linux and Windows 2008/2012/2016 servers. Interface directly with clients providing engineering assistance in both networking and systems.
  • Develop and implement internal procedures for staff to support clients, such as general support procedures for tickets. Develop training materials for junior staff and provide training and mentorship to them as senior staff.
Confidential, Northern California

Independent Consultants

Responsibilities:

  • While working various contract positions, throughout northern California, performed emergency troubleshooting/repair of a vmWare vSphere v6 cluster. Installed network cabling for a client site, updating their building network to support gigabit.
  • Performed managed upgrades of clients’ desktop infrastructure upgrading them from Windows 7/XP to Windows 10 and performed troubleshooting of earlier applications to allow them to work on Windows 10. Performed layer 1 network troubleshooting for a client site which loss connectivity between two buildings, which was due to a damaged fiber run in an industrial environment.

Confidential, Rancho Cordova, CA

Senior Network Administrator

Responsibilities:

  • Stepped down from the IT Operations Manager to perform administration/engineering including performing security mitigation and development operations. Performed senior troubleshooting and problem resolution across all systems and network issues.
  • Implemented BIND secondary DNS servers on CentOS 6.x, receiving updates from Windows 2012 DNS primary servers. Assisted with setup, configuration and testing of Spacewalk (Satellite) in preparation of automating patching efforts.
  • Successfully migrated from Cisco CSS-1150x load balancers to Cisco ACE4710 devices and implemented Cisco GSS4492 site selectors. Implemented Cisco 45xx switches for core switching and routing, as well as implemented ASA55xx series firewalls for security. Upgraded from Novell eDirectory 8.7.3 to 8.8.7 SP6 in multiple environments, migrating base operating system from RHEL5 to CentOS 6.x, also ensuring system and application LDAP authentication and authorization of users across 100+ Linux systems.
  • Development of programmatic LDAP testing tools for QA department using Perl. Assisted in migration from existing bug tracking tool (GForge) to an ITIL compliant service desk solution (Citrix GoToAssist) while modifying processes and procedures to fit within the new solution. Replaced existing Cisco wireless solution with Ubiquiti wireless solution utilizing 802.1x authentication with a Windows Server 2012 NPS back end.
  • Installed, setup, and migrated virtual infrastructure from VMWare to Citrix XenServer, including migration or rebuild of various Windows and Linux virtual systems. Performed development of custom monitoring solutions for in-house applications and tuning of monitoring in OMD/Nagios/Check MK environment to ensure proper alert thresholds for production systems and networking. Developed Perl based applications to control/automate network failover.
  • Authored technical documentation for supporting custom system builds, in-house applications, and LDAP administrative tasks.
  • Developed infrastructure plan for hardware, software, applications, network, project tasks, and procured pricing for all hardware and software to be used in upcoming California Emissions Testing contract for the state to take over ownership of the system providing all emissions testing within the state based upon the contract requirements provided from the state agency and other governing requirements.

Confidential

IT OPERATIONS MANAGER

Responsibilities:

  • Providing management and strategic direction for the IT Operations team supporting enterprise infrastructure for the California Emissions Testing Program and day to day operation activities for internal and external infrastructure and clients. Performed hiring, employee development, and management of a strong technical team to support the infrastructure. Developed required processes and procedures for a smooth functioning IT Operations team.
  • Participated in cross-functional projects and initiatives. Responsible for the successful rollout of the state’s new internet-based emissions testing program.

Confidential, CA

TECHNICAL CONSULTANT

Responsibilities:

  • Contract to take over a delayed implementation project. Successfully created an inventory of all Cisco networking equipment at 37 sites belonging to three separate medical affiliates.
  • Using the collected data, an implementation plan was developed for the rollout of the Enterprise Network Monitoring Solutions, which was modified for the medical affiliates, taking into consideration the affiliates existing toolsets.
  • Managed vendor relationship between HP, Sutter Health, and third-party consulting firm to resolve ongoing issues with their HP OpenView NNM environment. Managed the communications between the affiliates and Sutter Health to ensure effective communications and develop a productive relationship. Managed the implementation of the solution, ensuring that all tasks that needed to be performed by both Sutter Health & affiliate staff were completed.
  • Performed Perl development to maintain and extend HP OpenView NNM, and assisted with the deployment and development of HP OpenView NNM. Developed filters for HP OpenView NNM and implemented basic correlation circuits to manage scheduled maintenance of devices and event correlation.
  • Resolved application issues between HP OpenView NNM and Tivoli NetView for proper alert forwarding to primary alert aggregator.

Confidential,Sacramento, CA

SOFTWARE SYSTEMS ENGINEER

Responsibilities:

  • Developed and maintained monitoring utilities and applications within the department. Rebuilt and maintained department's intranet site and site tools, and then migrated to Oracle 9i portal. Developed system, application, and training documentation.
  • Designed, developed, and implemented real-time transaction monitoring tools in Perl for revenue critical applications monitored by the department. Created, modified, and maintained HP OpenView Operations monitoring templates and back-end applications for meaningful event correlation used within the enterprise.
  • Participated in technical interviews for hiring personnel and training of new personnel on departmental processes and procedures. Performed change/incident/outage management coordinator functions in compliance with ITSM/ITIL standards. Developed and maintained the department’s standardization of all UNIX account environments.

Confidential, Rancho Cordova, CA

SYSTEMS ADMINISTRATOR

Responsibilities:

  • Performed maintenance and administration of systems in a heterogeneous enterprise environment. Planned, built and maintained Novell NetWare, Linux, Windows 2000 servers, and workgroup/mail applications (Lotus Notes/Domino, Microsoft Exchange, and Microsoft Mail/Schedule+).
  • Maintained, planned and expanded multi-user & multi-platform KVM networks consisting of multi-vendor components. Managed vendor relationships concerning hardware and software purchases. Was responsible for research and implementation of software/hardware rollouts and provided documentation & training to the tiered support teams.
  • Developed installation applications for network delivery of application/operating system components and fixes.

Confidential, Sacramento, CA

LAN TECHNICIAN

Responsibilities:

  • Installed, configured and maintained Windows 95/NT workstations in a Lotus Notes and Novell Client 32 network environment for Western Farm Credit Bank. Developed a communication interface script to handle high volume monetary transactions.
  • Configured and troubleshot several in-house financial transaction and mainframe connectivity software applications using WallData Rumba. Developed scripts in WallData Rumba to automate repetitive tasks.

Confidential, Sacramento, CA

TECHNICAL RESOURCE SPECIALIST

Responsibilities:

  • Researched and documented Packard Bell, NEC and Zenith Data Systems (ZDS) hardware, software, and product issues. Developed and maintained the technical knowledge base used by the Technical Support centers of Packard Bell/NEC/ZDS, as well as the service database used by authorized service centers. Performed pre/post production hardware engineering changes. Developed software fixes for post-production issues that arose in the hardware.

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