Objective Ensure successful UNIX projects by understanding the requirements and the complex technologies involved, designing with diligence appropriate to the complexity, and adopting well tested, mainstream best practices as per vendor's recommendations.

Technical Skills Unix

Experienced in designing Unix solutions to be maintainable and scalable while maximizing performance. Skilled in deploying complex technologies and application suites including database platforms, trading platforms, HPC clusters, HA solutions.

• Red Hat AS 2.1, 3.x, 4.x, 5.x and 6.x, CentOS. Red Hat Certified Engineer.
• Solaris 8, 9, 10. with certification 8
• Linux deployment on VMware including supporting Oracle POC
• Bladelogic, kickstart, jumpstart, clusters
• NetApp, EMC integration with Linux and Solaris

Oracle DBA

• Unix System configuration and tuning for Oracle platforms
• OS support for Oracle 11.x on Solaris, Linux including RAC
• Veritas Cluster and Oracle integration

HPC / Grid

• High performance compute clusters
• Platform Computing Scali Manage, Beowulf, CSM and other cluster technologies
• Custom integration of OpenMPI, R, Sun Grid Engine SGE

Performance

Tuning

• OS Internals, VM systems, I/O subsystems, Application performance analysis
• Leverage hardware architecture and BIOS settings for best performance.
• Solve complex performance issues involving systems and networks.

Networking

• TCP/IP, DNS, NIS, NIC bonding, traditional Unix protocols and services
• Troubleshooting with wireshark, tcpdump and snoop

Hardware

• Cisco UCS, HP BladeSystem, IBM BladeCenter, x86 architectures
• Experienced at hardware evaluation for price / performance
• Sun M9000, E2900, T2000, 69xx, V4XX, V2XX, various midsized systems

Experience

Confidential

• Supported 11GR2 RAC platforms including configuration, patching, upgrades
• Server builds as required for research projects
• Some exposure to AWS / EC2 and Ansible

Confidential

• Primary duties supporting Linux-Oracle platform infrastructure OS, tuning on Cisco UCS and HP DL980 with emphasis on tuning and best practices
• Initiated a process of server testing / pre-qualification for deploying servers
• Pilot project Oracle on VMware / Linux
• Participated in team effort to evaluate strategic direction on DB platforms

Linux Architect / Engineer

• Designed / Implemented initial Linux deployment at firm HP BladeSystem, RH 5.x, NetApp
• Automated entire Linux environment using Bladelogic to mitigate problems of scale
• Conducted Linux tuning performance analysis to reduce network latency in trading environment
• Oracle on Linux configuration recommendations

HPC Architect

• Designed / implemented all components of a multi-architecture Linux, Solaris compute cluster for quantitative analysis in a self-directed 7 month project
• Integrated the client's application environment including evaluating several approaches for parallel zing the client's primary application R, an open source statistics package . Integrated SGE, R, Rmpi, Snow, Open Spaces, OpenMPI on Linux / Solaris
• Established project software development environment including evaluating performance deltas in Gnu and Sun compilation environments, explored Sun M9000 CPU architecture for optimization
• Conducted thorough hardware evaluation with cost-benefit analysis of low power CPU and memory components
• Delivered the option of a multi-OS cluster with Windows HPC Server 2008 R2 instance as virtual guest on each Linux compute node

Solaris Engineer

• Solaris 10 best practices recommendation for Sun servers, EMC storage, Oracle applications
• ubject matter expert for IBM Global Services
• Performance analysis on Solaris 10 / Oracle 10g systems working with DBA staff
• ZFS best practices recommendations during early adoption of ZFS
• Solaris, Zones, SRM server consolidation design for NY ISO TIBCO messaging environment
• Produced extensive documentation for IBM and client outlining best practices for Zones, SRM in client's application area and environment

Solaris Engineer

• Investigation of Oracle / UNIX performance issues
• Dtrace and traditional Unix analysis tools
• Deployment of Solaris 10 systems

Solaris Engineer

• Design / Implementation of Veritas Cluster / Oracle HA solution Team effort
• Identified and solved issues in ETL process by analyzing Solaris I/O behavior, then used Hotsos tools Oracle call-wait interface to identify excessive logminer I/O consumption. Success measured by reducing log file read activity from 69 to 21 of wall clock time during ETL process.
• Server consolidation and resource management using Zones, SRM and Projects, including developed C code for reporting resource consumption by projects
• Worked closely and successfully with DBA and storage engineers to implement best practices for Oracle storage design on EMC
• Deployed Orca for site-wide monitoring of Solaris systems
• JVM Performance analysis and tuning

Solaris and Linux Engineer

• Conducted thorough analysis and redesign of mission-critical 7TB Health Informatics Data Mart E10K, Oracle, Sun A5200, Solaris 7/8 .
• Worked on solving Oracle / Solaris performance issues
• Designed and deployed Orca for systems monitoring
• Identified and corrected many issues in storage design, including heavily overloaded spindles and the use of multiple, directly competing file systems on the same raid arrays, which introduced maximum head contention. The poor design had resulted in overheated disks, exposing an ASIC problem resulting in complete loop failure on storage arrays. Improved sequential write throughput from 13 MB/sec to 70 Mb/sec with new storage design.
• Designed and implemented first departmental Linux desktop deployment for Bioinformatics Dept. Red Hat 8 Clients were R D scientists.
• Managed first Linux Beowulf compute cluster in GSK R D, this cluster was key in reducing time to market for drug discovery. Clients were Bioinformatics and Cheminformatics Blast, Dockit . This cluster used IBM xCat, LSF, Red Hat 7. Supported R D end users research scientists including assisting with software development environment issues.
• Linux system design and deployment Advanced Server
• Solaris 10 pilot project and evaluation for client migration Zones, ZFS, SRM, Projects
• Engineering and admin support for large-scale environment with 1000 servers, including Solaris, Linux, HP-UX, Tru64, SGI
• Designed GSK's second departmental cluster Bioinformatics on IBM BladeCenter, managed by IBM's CSM product Cluster Management System and participated in design of a third cluster.
• Data Center and system administration Best Practices evaluation and recommendations