Jeff Wasilko 38A Yale Ave Wakefield, MA 01880 Phone: +1 781 820 0882 Email: jeffw-resume@smoe.org MS Word version available at http://www.smoe.org/jeffw/resume Skills Summary o Unix systems administration, with a focus on developing and using system administration tools to simplify management of large-scale environments o Management of application and service lifecycles, including migration paths and upgrades o Application-level and system-level performance tuning and capacity planning o Design of distributed, scalable systems supporting mission-critical services o Strong written and oral communication skills o Self-management/self-starter with the ability to work independently or as part of a team o Strong technical leadership skills Technical Skills o Unix administration and performance tuning, with strong knowledge of Solaris internals o Databases (LDAP, Oracle, Sybase, MySQL, PostgreSQL) o Sun/Netscape Messaging and Directory servers o Name Services (LDAP, NIS/Yellow Pages, NIS+) o Scripting (perl, sh, csh and sql) o Veritas Volume Manager, File System and Cluster Server, Sun DiskSuite/Logical Volume Manager and RM6 o Storage hardware including Sun A1000, D1000, A3x00,A5x00, EMC Symmetrix (with TimeFinder and SRDF), CLARiiON and SAN JBOD o Core Internet applications and services including SMTP (sendmail), SSH, POP, IMAP, NNTP, DHCP, DNS, HTTP (Apache), Samba o Commercial and public domain network and systems monitoring tools (mrtg, orca, netsaint, Netcool OMNIbus/Internet Service Monitors, Concord Network Health/SystemEdge SNMP Agents, Veritas NerveCenter) o System and network security, with an emphasis on building systems with minimal exposure. o LAN and WAN equipment (Cisco 2600, 3600, 7000 series routers, Cisco Catalyst 1900, 2900, 3500, 5000 series switches, Extreme Networks Summit 24/48 and 7i switches) Work Experience August 2004--Present Senior Systems Administrator, Wellington Management Responsibilities primarily included support of Unix production systems as well as guiding infrastructure improvements. Significant accomplishments at Wellington Management include: o Day to day support of large Veritas clusters running on Fujitsu 2000 and 2500 servers with EMC storage. o Deployed cfengine to manage system configuration across 3 sites and more than 100 systems. o Primary owner of development/test/stage environment and corporate systems secure network. o Secondary owner of EMC TimeFinder/SRDF environment. o Migrated systems to use DiskSuite for mirroring boot disk to ease OS upgrades. Provided DiskSuite training to department. o Deployed LiveUpgrade to ease OS upgrades and patch installation. o Deployed wiki to provide central repository for system & standards documentation. Developed templates for standards documents. o Deployed console servers to enable remote access to all systems. o Wrote "Infrastructure Analysis Report" to provide guidance for infrastructure improvements in 2005. May 2004--August 2004 Consultant/Architect, Gryphon Networks Responsibilities primarily included system architecture design for Email Advisor product. Significant accomplishments at Gryphon Networks included: o Re-architected system to satisfy requirement for one trackable message per recipient for bounce and opt-out processing. o Led whiteboard sessions to educate development team on mail standards and message flow in Email Advisor system. o Assisted sendmail milter developer with performance tuning and RFC compliance issues. o Provided guidance for server platform selection (both Sparc/Solaris and x86/Linux) and storage platform for production system. o Tuned sendmail for optimum performance. March 2003--May 2004 Senior Unix Administrator, TVGuide OnScreen Responsibilities primarily included operation of Information Broadcasting and IT systems. Significant accomplishments at TVGuide included: o Upgraded Solaris 7 & 8 systems to Solaris 9 with minimal downtime using a variety of tools including LiveUpgrade and rsync. o Migrated name services from NIS+ to LDAP with no downtime. New LDAP environment included replicated servers and automated nightly backups. Documented new account management procedures. o Troubleshooting and day-to-day operational issues involving NIS+, NFS, DNS, DHCP, mail and samba. o Deployed cfengine to manage system configuration across 3 sites. o Designed CVS-based change management utility for cfengine to support requirement for 5-stage rollout of configuration changes. o Deployed standardized software distribution across all servers. o Upgraded sendmail-based mail system to include the use of RBLs and SpamAssassin to reduce the impact of spam. o Deployed standardized SAN configuration across all hosts. o Applied patches and upgraded applications as needed to track security issues and new software versions. o Administered Red Hat Linux development systems. o Renumbered office and production network from public address space into RFC1918 space with minimal impact on operations. o Consulted with other departments to help specify hardware for various projects. March 2001--Dec 2002 Senior Developer, RouteScience Technologies Responsibilities primarily included building and supporting perl-based customer support tools and engineering research projects. Significant accomplishments at RouteScience included: o Designed and built LDAP-backed, web-based Customer Information System. Provided ongoing enhancements with bi-weekly releases. o Designed LDAP-backed distributed Customer Authentication System for customer-facing Web and FTP servers. o Designed and built MySQL database for route performance data- warehouse. Wrote perl database driver library for other developers to use to interface with the data warehouse. Designed and built RRDtool-based graphing of data from the data warehouse. o Designed and built modular Endpoint Collection System to provide data feed to route optimization system. System included modular perl libraries to ease creation of new endpoint filters, as well as support for BerkeleyDB and SQL databases. o Administered Solaris and Red Hat Linux development systems. o Supported Systems Administration group by acting as a technical resource on Solaris systems. June 2000--March 2001 Principal Member of Technical Staff/ Senior Unix Administrator, Gemini Networks Responsibilities primarily included building and supporting infrastructure to support launch of new open-access CLEC. Significant accomplishments at Gemini Networks included: o Designed, built and managed 40+ server datacenter, including basic systems and network architecture, rack placement, structured wiring and fibre management systems. o Designed Jumpstart install environment that supported 100% hands-off installation of multiple versions of Solaris, all core software and patches. Veritas Volume Manager/File System and DiskSuite installation included automatic configuration of boot disk mirrors and SAN disks. o Built Oracle and Sun/Netscape LDAP Veritas Cluster Servers and cluster-aware backup tools. o Deployed Sun/Netscape Messaging server. o Designed and built LDAP-based mail-to-pager gateway. o Assisted with design of centralized software distribution and configuration maintenance system for Solaris 2.6 and Solaris 8 servers, utilizing cfengine, ssh, and rsync, with the goal of identical system installations and installation reproducibility. o Designed multiple-ISP log distribution system to support open-access environment. o Worked with storage services provider (StorageNetworks) to design and implement SAN, NFS and backup service. Packaged SAN drivers for hands-free installation and configuration via Jumpstart. o Provided technical support to NOC group on NOC applications (Netcool OMNIbus and Internet Service Monitors, Concord Network Health/SystemEdge SNMP Agents and Veritas NerveCenter). o Acted as part of initial IT group and built internal infrastructure to support office, including internet connectivity, phone system, mail, LDAP, NIS, NFS, Jumpstart and SMB servers. o Created "Datacenter Standards" document that described standard practices for machine and cable labeling, PCI slot usage, ethernet port usage, structured cabling and disk layout standards. January 2000--June 2000 Director, Systems Engineering, RoadRunner June 1999--January 2000 Principal Engineer -- Distributed Computing, RoadRunner Responsibilities primarily included supporting RoadRunner's cable-based broadband internet service and managing a group of 2 Principal Engineers. Significant accomplishments at RoadRunner included: o Led engineering, testing and deployment of mail system upgrade supporting 350,000 mail accounts from Netscape/Sun Messaging version 3.x to 4.1, on time and with no unscheduled downtime. o Designed software to allow 'roaming' customers to securely access RoadRunner's SMTP servers while using dialup modems. o Participated in National Data Center design and managed Consolidated Messaging RFP process to design mail system that would scale to support 10 million mailboxes at broadband access rates. o Developed standards for OS and Application health/performance monitoring for Mail and News servers and managed monitoring application development. o Supported MediaOne's legacy server environment, including provisioning interfaces, TFTP/BOOTP/DHCP and mail (sendmail, Netscape/Sun Messaging and LDAP). o Acted as back-line Solaris systems administration support for all Solaris systems in RoadRunner. June 1997--June 1999 Senior Project Engineer, Sun Microsystems Responsibilities primarily included support of MediaOne Express/RoadRunner cable-based broadband internet service. Significant accomplishments at MediaOne/RoadRunner included: o Successfully deployed cable modem ISP architecture in Amsterdam in less than six weeks from start of project to completion of alpha-test phase. o Designed, implemented and deployed a second-level e-mail infrastructure to augment existing Netscape Messaging system. Planned unsolicited e-mail blocking and abuse prevention mechanisms. o Examined and documented the architecture and performance issues of Netscape Messaging 3.x and LDAP system, and designed next-generation architecture to allow mail infrastructure to scale to 500,000+ accounts per region. o Designed, implemented and deployed software to allow 'roaming' customers to securely access MediaOne's SMTP servers while using dialup modems. o Designed, implemented and deployed tools to monitor Netscape/Sun Messaging performance for use in scalability planning. o Consulted with other team members on application/system performance and scaling issues. o Acted as back-line Solaris systems administration support for all Solaris systems in MediaOne. o Worked as part of team that performed numerous mail system migrations and upgrades, as well as 24x7 support of national mail infrastructure. June 1996--May 1997 Systems Support Engineer, Sun Microsystems Responsibilities included account management and total system support (including hardware, software, applications and networking). Significant accomplishments included: o Technical account management for major customers including MediaOne, Putnam Investments, Bell Atlantic and Sun Microsystems Production Data Center. o Managed high-profile escalations to successful completion while meeting customer expectations. o Supported other Systems Support Engineers and Service Partner staff by acting as a technical resource. o Design & implementation of an application to generate service call follow-up letters on a scheduled basis from an existing Sybase database. May 1993--June 1996 Senior Systems Representative, Autologic Information International Responsibilities included project management, product integration, system installation & documentation, back-line technical support, technical sales support, and in-house & customer training. Significant accomplishments included: o Configuration, project management and installation of a 7-site, 150+ user Solaris-based display advertising creation and tracking system in a complex multi-vendor environment. o Configuration, project management and installation of a 200-user, 2 newsroom newspaper editorial system. o Configuration and installation of a 40-user classified ad system supporting over 50 daily and weekly newspapers. o Troubleshooting highly complex multi-vendor application environments. o Migration of products from Solaris 1.x to Solaris 2.x. Education o Rochester Institute of Technology, Newspaper Operations Management (2 years completed towards BS degree) o Northeastern University, C Programming (working on BS in Computer Science) o EMC Symmetrix Business Continuity & SRDF Automated Replication o Sun Microsystems, Solaris 2.X Internals o Sun Microsystems, Sun Systems Fault Analysis Workshop o Sun Microsystems, Sun Enterprise Cluster PDB/Oracle Administration o Sun Microsystems, Sun Enterprise Cluster HA Administration o Sun Microsystems, Technical Symposium (1997, 1998, 1999) o Veritas, Volume Manager Operations o Veritas, Cluster Server 4.0