Network Systems Administrator Resume Profile
Summary
- Objective: To obtain a technical position, either full-time or contract, in systems and networking infrastructure as a Technical Lead or Sr. Unix System Administrator/Architect. 20 years of experience, ability to learn anything in a short time frame.
- Languages: sh, bash, csh, C, awk, sed, PERL
- Internet: Sendmail, Postfix, IMAP4/POP3, DNS BIND 4.x to 9.x , INN, Wu-ftpd, Mailman, SpamAssassin, F-Prot, DCC, MailScanner,
- Protocols: TCP/IP, UDP/IP, LDAP, SNMP, NFS, NAS, iSCSI, Ethernet, FDDI, CDDI, SCSI, SMB SaMBa
- Security: PAM, SASL, Packet Filtering, Nessus
Operating
- Systems: Solaris 2.3-10.0, FreeBSD 2.x-10.x, RHEL 3.x-5.x, Debian 4.x-5.0, SuSe 9-10 SLES , OnTap 3.x
- File Systems: ZFS, UFS2, ext2, ext3, HFS, FFS, WAFL
- Hardware: x86, amd64, Network Appliance, various manufacturer specific platforms
- High Availability: Various clustering software packages as well a fully versed in high-availability theory and practice as well as failover and redundancy. GlusterFS, Qualix and CARP.
- Web Servers: Apache and variants
- Monitoring: OpenNMS snmp based , Nagios, Ganglia
- Backups: Creator EMC's EDM, EDR, Bacula, z Amanda, dump/restore, remote storage, nearline storage, backup theory to allow rotating schedules and a minimum of time required for restoration.
- Automation: Kickstart, Jumpstart, DHCP, dhclient, dynDNS, ddclient.
- Replication: rsync, unison, glusterFS.
- System Logging: central logging services, syslog, rsyslog
- Performance Tuning: filesystems, system parameters, application specific tuning,
- platform evaluation, throughput testing and platform QA.
- Other: System/Network Security, LDAP/PAM/NSS to AD integration, SaaS, NFS, NIS, automounter, Veritas Suite, central logging. PostGreSQL, MySql not current , and numerous other tech.
Experience:
Confidential
Project Manager/Sr. UNIX systems administrator/Architect
- Responsible for research, architecture and implementation of technology infrastructure during initial draft, layout, project/subproject division and lifecycle for all OpenSource Software projects.
- Responsible for research and implementation of ticket tracking software databases, communications using OpenSoftware products.
- Responsible for business plan design and implementation as well as researching financing through the small business administration
- Implemented all infrastructure requirements on Open Source software and derivatives on Open Source operating system, FreeBSD.
Confidential
Single Sign-on Project
Created an LDAP/PostGreSQL single sign-on system for client. Migrated all clients UNIX, Linux to use PAM/LDAP/NSS for integration into system.
Confidential
Monitoring Systems Architect
- Worked on creating complete monitoring systems infrastructure including OpenNMS, rsyslog, newsyslog and various other tools in synchronization. Designed, created project plan, implemented.
- Created documentation for recreation, troubleshooting, and, possible, intrusion of systems detected by missing logs or incorrect timestamps/accesses.
- Off-primary-network logging server receipt of all logs and locked down via solitary security manager password.
Confidential
System Admin Team Lead temporary
- Worked on day-to-day operations task list for 5 junior administrators. Mentored and escalated base knowledge and instilled best practices.
- Implemented basic monitoring systems from project design self and trained junior personnel on how SNMP strings function, how to create new modules and maintain system once complete.
- Standardized documentation template and had all documentation re-written to a low-level that would allow more junior people to come in and hit the ground running thereby reducing training costs and allowing more advanced personnel to exercise their new skills learned from tutelage.
Confidential
Systems Engineer
- Worked to service, support, improve Dell Secureworks proprietary security solution..
- Worked to implement performance testing and tuning lab.
- Worked to implement Open Source technologies to replace homegrown infrastructure.
- Performed hardware platform research and targeted 1500 machine replacements at customer sites.
- Created guidelines for closed-end customer contracts.
- Created EOL document for customer contracts going forward.
Confidential
Sr Systems Engineer
- Worked as a full-time employee to research and implement a consolidated new environment that would bring about efficiency and cost savings. Working in a SaaS environment for a company that was providing digital data backup services using Java, Apache, and Debian Linux.
- Designed and implemented new logging infrastructure for using rsyslog to allow multiple machines to log to a central server in a data center. From there, all data center servers were collected to a server further up the hierarchy with limited access to avoid tampering.
- Designed and implemented a new network monitoring tool to allow collection of all information from all servers in a data center and allow redundancy across data centers by implementing OpenNMS to consolidate from 8 down 2 monitoring tools.
- Designed and implemented WinBind/AD integration on Debian 4.x. Re-designed and implemented
- Designed and implemented LDAP/AD integration on SuSe SLES 9.x and RHEL 4.x.
Confidential
Sr. UNIX systems administrator/Architect
- Worked as a full-time employee to redesign and implement a new architecture to replace existing, non-expandable, environment.
- Documented and worked in a non-standard environment in an attempt to stabilize issues coming from saturation points that had been exceeded.
- Designed the beginnings of a new architecture including an iSCSI backbone/network.
- Maintained existing infrastructure in firefighting mode.
Confidential
Contract to Hire
- Worked on a four month contract to migrate company's wholly owned subsidiary, Voice Signal, from Woburn, MA to company campus in Burlington, MA
- Documented and worked in a non-standard environment in an attempt to stabilize issues coming from saturation points that had been exceeded.
- Worked in getting environment prepared to for migration.
- Worked with coworkers to migrate environment and integrated into campus environment.
- Completed migration and began day-to-day operational support.
Confidential
Contractor/Consultant
- Worked on a 3 month contract and retained for numerous extensions to perform intermediate to senior level systems administration tasks. Primary function was to migrate Solaris 8, 9, 10 machines to RHEL 3 and 4. Built entire underlying infrastructure services for Application Service Provision of financial services company for UNIX/Linux arena and transition off of Windows on the front and intermediate levels.. This included but was not limited to implementing:
- DNS on FreeBSD later migrated to Solaris primary and RHEL secondary
- ISC DHCP on Solaris, Jumpstart on Solaris 9 and 10, RedHat Kickstart for RHEL 3, 4, 5
- Orca for Solaris, Proca for Linux for a complete point-in-time graphing of systems performance on a centralized server accessible via web.
- Implemented Nagios infrastructure to the point of notification/escalation system approx 90 completion
- Implemented LDAP using OpenLDAP including password policy management and replication via syncrepl. Primary server on RHEL 4, replication to Solaris 10 machines. Clients were RHEL3, RHEL4 on Openldap client while native Solaris 9 and Solaris 10 LDAP clients were used. PHPLDAPAdmin was installed for GUI access by more junior administrators.
- Initiated the beginnings of a ticketing system based on Request Tracker software.
- Initiated a Wiki based documentation system as an initial design.
- Made significant impact by improving and optimizing automation of existing infrastructure. Designed and implemented new design while simultaneously supporting old design.
Confidential
Contractor
- Contractor working for SUN Microsystems. Bedford, MA
- Developing hardware solutions to HPC. Working and configuring all latest hardware on Solaris 9 and 10.
- Project Manager/Sr. UNIX systems administrator
- Contractor to SUN Microsystems SSG group. Responsible for the hardware, software, and network setup of numerous servers ranging from E250 to E25000 machines running Solaris 9 and 10.
Confidential
Senior Unix Systems Administrator/Team Lead/Architect
- Supervise team of several UNIX system administrators and responsible for a roll out of a new system room architecture design and roll out. This incorporated design documents from start to finish of bringing in power coupling from a neighboring power office for redundancy, power generators, all the way through to a finished 5000 sq foot, raised floor machine room, migration plan for existing machines, etc.
- Responsible for management of small team in daily operations.
- Responsible for research and advancement of technology and stabilization of existing infrastructure.
- Responsible for technical and operations documentation of roadmap and implementation plan.
Confidential
Atlantis Services
Created and incorporate MA 'S' Corporation known as Atlantis Services. Built infrastructure and other requirements to allow the ability to sell software products and services of my design to the home user and small company market.
Confidential
Sr. UNIX systems administrator
- Responsible for technical advancement and cost cutting advantage of Open Source implementations.
- Application based system performance tuned Solaris and FreeBSD as related to requirements for networking, disk I/O, processes, etc
- Installed DHCP Server software, DNS BIND 9.x for internal use.
- Implemented MS Exchange alternative with LDAP, IMAP, SASL, PAM and various utilities.
- Implemented bulk e-mailer using Postfix and FreeBSD. Machine replaced bulk e-mailer service. Intel-based machine capable of saturating a full T1 bandwidth. Implemented Mailman list server software for automated update of e-mail subscriber lists.
- Implemented/Researched PostGreSQL 7.x database software for Oracle replacement within site.
- Implemented backup software implementation of AMANDA backup utility software.
Confidential
Commercial Operating Manager technical position
- Responsible for several direct reports, technical direction and rollout of company web hosting site at the service provider.
- Responsible for writing technical specifications on implementation of functional specifications.
- Coordinated day-to-day activities of commercial operations and site rollout.
Confidential
Working in a web hosting environment that would require not only support of the given platform but also SaaS advice to customers on their platform for tuning and appropriate configuration depending on type of middle ware and database MySQL, Oracle, PostGreSQL
Senior UNIX Systems Administrator
Individual contributor of Tier 3 Systems Support
Contributing member of 'buck stops here' customer support organization. 15 minutes to resolution. Provisioning and support of high-visibility customer sites. Sun Solaris, Veritas, Netscape, etc
Team Leader of Tier 3 UNIX Systems
Lead/organized
- team To be successful, motivated and with high morale. Members of team and immediate supervisor rate performance very high.
- Initiated job description/function documentation. Implemented training and mentoring programs both within group and with group immediately below, Tier 2. Created ramp-up program to allow new hires to become effective on the job within 6 weeks versus 13 weeks.
- Attached to strategic resolutions team
- Enhance process and procedure to be able to rapidly prototype product for end customer consumption. Lead a small select team to rapidly create/refine new/existing methodologies to allow corporation to scale and be successful in their marketplace.
Confidential
Senior Systems Administrator
- Coordinated configuration and upgrade of MPD subdivision and mpd.analog.com subdomain.
- Updated DNS databases and BIND to 8.1.2
- Upgraded subdomain mail gateway to Sendmail 8.9.1
- Coordinated configuration and upgrade of XLAAPI subdivision and xlaapi.analog.com subdomain.
- Updated DNS database and BIND to 8.1.2
- Upgraded subdomain mail gateway to sendmail 8.9.2
- Re-architected MPD division environment to standards-based systems. New architecture capable of full enterprise integration of SUN Solaris and Microsoft Windows NT.
- Changed environment from non-standard configuration to standards based system.
- Introduced SaMBa to subdivision for file sharing across platforms.
- Changed UNIX configuration to client-server based system.
- Performed analysis of existing UNIX systems
- Architected new client-server based environment
- Implemented new architecture while maintaining 99 uptime
- Implemented Vxfs and vxvm in a more suited configuration.
- Implemented EDR and new backup schedule
- Implemented new backup system and schedule.
- BUDtool software rearchitecting.
- Created staggered schedule of full and incremental backups to better facilitate better time utilization of backups. Once complete, system was fully scalable to handle over 500 clients with 10 servers and/or disk capacity of over 1 TB
- Educated coworkers
- Provided information, training and solid working exchange of knowledge and standards with coworkers.
- Explained workings on theoretical as well as application level of various applications and protocols.
Confidential
Consultant Senior UNIX systems administrator
Consulted on many high visibility sites performing high-end systems/network administration.
Client Sites:
- Fujitsu Automated systems installation using Solaris Jumpstart. Upgraded system NFS response by introducing and configuring Cache FS. Upgraded and reconfigured DNS servers and Sendmail gateways. Troubleshot INN Usenet News service. Provided migration plan for SunOS to Solaris.
- Fidelity Created and implemented tools and report generation of LSF machine clusters.
- Lockheed Implemented UNIX/Win95 integrated environment for printing and file sharing.
- GTE Internetworking worked with team of development engineers in implementing new versions of GTE Web Hosting platform. Also responsible for researching and implementing Web performance/benchmarking environment.
Confidential
Senior UNIX/Network Systems Manager
Responsible for the create of EMC's Internet connectivity:
- Researched and implemented EMC's main Internet connection. Appropriated Class B network address and subnetted address space according to needs.
- Implemented main DNS domain, emc.com, and address space for several subdomains.
- Researched and implemented all Sendmail mail gateways, INN newfeeds for all primary and secondary domains.
- Responsible for Internet security including setting up anonymous ftp server with WU-ftpd
- Responsible for maintenance, upgrade and development of UNIX network comprised of 750 workstations and servers.
- Designed and implemented UNIX environment to allow unlimited expandability and growth. Capacity planning.
- Designed and implemented UNIX environment to allow almost unlimited expandability and growth. Capacity planning.
- Grew number of online workstations and servers from 70 and 2, respectively, to 750 and 8, respectively.
- Performed systems performance tuning and platform migration SUN platform 4.x and 5.x Worked with Veritas Suite tools Vxvm and Veritas filesystem Vxfs.
- Created systems automation by implementing rdist and scripting.
- Implemented extensive use of NFS, NIS and automounter.
- Responsible for EDR and backup and recovery plan.
- Responsible for developmental support of EMC product known as Open Symmetrix.
- Responsible for development of EMC backup product known as SNBR EDM .
- Responsible for design and creation of new backup product.
- Responsible for daily operations and activities of 5 development engineers
Confidential
UNIX/Network Systems Administrator
Responsible for continued upgrade, maintenance and development of heterogeneous UNIX network. Primary platform: SGI IRIX
Confidential
UNIX/Network Systems Manager
- Responsible for daily support and systems administration for USAF on Hanscom AFB, Lexington, MA
- Created secondary DNS domain lonex.hanscom.af.mil.
- Performed daily network and systems administration for 100 engineers and scientists
- Company requested CA Transfer to head up new project.
- Responsible for design and implementation of GUI for product.
- Responsible for porting of UNIX software to PC UNIX variants.
- Responsible for continued upgrade, maintenance and development of heterogeneous UNIX network. Primary platform: DEC OSF/1, Ultrix
- Full staff responsible for day-to-day operations of 65 engineers and product development in absentia of Project Engineer.
- Tutored/mentored GUI, DB, and IPC groups in the integration of the product.
Confidential
Assistant Staff/Software Engineer
Responsible for translating scientists' signal processing algorithms to C program to be ported to Convex C220 mini-supercomputer
Confidential
Junior Software Engineer
Responsible for software QA and PC network administration of a startup company developing a PC host based PostScript interpreter.