Engineer Software

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Resume Juan L. Negron

381 Race St.

San Jose, CA 95126 408-***-**** mailto:********@***********.*********:********@***********.***********@xtremeghost.com

SUMMARY OF QUALIFICATIONS

Results-driven Senior Level Engineer and Linux/Unix Administrator with 14+ years of experience in engineering, administration, and support of information systems. In-depth expertise in the development, implementation, analysis, optimization, troubleshooting, and documentation of LAN/WAN network systems. Proficient technical knowledge and experience of Unix, Linux, Solaris, Windows, and Cisco systems. Experience in the development of software and various applications. Proven and verifiable ability to strategically plan, lead and motivate project teams to work diligently and ensure success. Excellent track record for diagnosing complex problems and consistently delivering effective solutions. Managed several technology projects from concept to completion.

Fluent in English and Spanish, both verbal and written communication.

TECHNICAL EXPERTISE

PROGRAMMING LANGUAGES

C and C++, Perl, Python, Shell Scripting, Basic, PHP, Ruby, Java

OPERATING SYSTEMS

GNU/Linux (2.2, 2.4, 2.6), Solaris (v7, v8), Windows (95, 98, NT, 2000, Me, XP, 2003), MS DOS, Mac OS/X

VIRTUALIZATION TECHNOLOGIES

VMware ESXi, Microsoft Hyper-V, Citrix XenServer, Amazon AWS, RightScale

DISTRIBUTED COMPUTING

Hadoop, Hive, MapReduce, HDFS

WINDOWS TECHNOLOGIES

Win32, DirectX, .NET, Microsoft Terminal Services

PROTOCOLS

PPtP, FTP, Telnet, SSH, SSL, DNS, NIS, SNMP, RDP

MONITORING APPLICATIONS

HP OpenView, Netcool, Nagios, MRTG, Monit, CollectD

WEB SERVERS

Apache, IIS, LightTPD, Tomcat, Jetty, nginx

DATABASE

Oracle, MySQL, Postgresql, MongoDB, Cassandra

BROADBAND TECHNOLOGIES

DSL (IDSL, SDSL, ADSL), Nokia, Adlantech, Adtrans DSLAM

ROUTERS

Cisco BPX, Cisco MGX, Cisco Routers, Cisco Switches, Cisco IOS, Redback Routers

COMMUNICATIONS LINES

POTS/DS0, ISDN, T1/DS1, T3/DS3, OC3/48/192, WDM, SONET

NETWORKS

LAN, WAN, ATM, Frame Relay

TELCO EQUIPMENT

Digital Cross Connects (Tellabs, Alcatel, DSC), Timeplex, Codex, IDNX, General Data Communications, Nortel, Lucent,Fujitsu Multiplexers

CRYPTOGRAPHY

DES, LUCIFER, MADRYGA, NewDES, FEAL, REDOC, LOKI, KHUFU and KHAFRE, RSA, IDEA, MMG, CA-1.1, SKIPJACK, GHOST, CAST, BLOWFISH, SAFER, 3-WAY, CRAB, SXALS/MBAL, RC4, RC5, SEAL, A5, WAKE, PKZIP, Lempel Ziff, and Binary Trees

TEST EQUIPMENT

Firebird 211/310/2000/6000, HLI 3901, HLI 4101, HP 4957A Protocol Analyzer, Tektronix 2247A, Oscilloscope, Digital Lightwave ASA 389

PROFESSIONAL EXPERIENCE

SHARETHIS, MOUNTAIN VIEW, CA

1/2010

PRESENTSr. Software Engineer

ShareThis is the largest market for sharing and influence across the web, reaching 400 million users on 850,000 sites. ShareThis makes content more engaging for publishers and marketing more impactful for brands by tapping into its true influence and value. Based in Mountain View, CA with offices in New York and Cincinnati, the company is privately held with funding from Draper Fisher Jurvetson, Blue Chip Venture Company, DFJ Mercury, Reservoir Partners, Illinois Ventures, Queen City Angels and RPM Ventures. Currently working on a set of initiatives and projects that will convert the few legacy systems into a fully self-healing and elastic network deployment that will allow ShareThis to adapt to demand while better optimizing monetary resources spent on the deployments.

At ShareThis, I designed, the server templates and AMI currently used in Operations to handle traffic upwards of more than 7000 requests per second and growing aggressively. I implemented the process that allows ShareThis to account in real-time each page view and share event using Python, Java and MongoDB among other technologies.

I implemented a web-server with a REST based API in Java to allow both internal and external users to consume real time counts in JSON format using Java and Jetty.

I designed, deployed and maintain an elastic bank of Log Servers that track every event that the current ecosystem generates via the ShareThis family of widgets.

Create, implement and maintain the current set of Server Templates using a variaty of languages including BASH, Perl, Ruby, Java, Python among others to allow the infrastructure to grow when demand rises and shrink to conserve resources.

I designed, deploy and maintain the monitoring and self healing company wide network using Nagios, custom scripts, snmp, collectd and monit among other technologies.

BARRACUDA NETWORKS, CAMPBELL, CA

11/2006

1/2010Load Balancer Lead Engineer

Architected versions 1.5 to 3.2 of the Barracuda Load Balancer (LB) to improve performance and stability on Layer 4, Layer 7, RDP, and SSL Offloading. Lead and trained a multiple sites operation. Delegated tasks and deadlines to LB engineers. Trained QA and Tech Support in equipment maintenance and operation. Advised executives with major company acquisitions after my examination and evaluation of the companies of interest. Re-designed the LB to increase performance, usability, and resource utilization. Engineered a stateful backend, refined Layer 4 Load Balancing, added support for Layer 7, passive FTP, and Microsoft Terminal Services. Designed, engineered and implemented a custom Global Server Load Balancing solution available in version 3.1 of the LB. Designed a logging system for statistical data collection from deployed LBs.

Lowered and maintained customer cases per thousand units to below 40.

Technology Innovation award from NetAdmin Magazine in January of 2008. The LB received this award after my architectural decisions, performance, and stability optimizations.

Migrated and automated the entire build and test environment with a combination of Microsoft Hyper-V, VMware ESXi and Citrix XenServer that took the build and automated-test process to a fully automated process.

Used Python and Pylons to automate the collection of packet signatures used in the intrusion prevention system and provide a unified interface for selection, modification, packaging and dissemination of rules to all of our products.

Conducted technical interviews for potential software and QA engineers.

PODTECH.NETWORKS, MOUNTAIN VIEW, CA

05/2005

10/2006Director of Network Operations

Developed the PodTech Network software utilizing many proprietary and open-source technologies. Launched the first media registration and delivery network focused exclusively on podcasting. Integral part of the team that planned and developed the initial and subsequent product offerings from PodTech.

Solely developed the first media and registration delivery network for podcasting.

SENTRY NETWORKS CORPORATION, SAN JOSE, CA

07/2001

5/2005Wireless Systems and Network Engineering Consultant, Lead Software Engineer

Architected and developed the entire billing and provisioning system using PHP and MySQL. Developed the control panels that are presented to the customers once they had created an account, as well as the control panels designed to manage all of the customers billing information. The implementation of this system allowed Sentry Networks to be completely automated from sign-up, billing, provisioning and implementation of the customers accounts. Advised board members on new ideas to further the company and possible acquisition candidates. Maintained the complete infrastructure implementing fault tolerant clusters. Continually optimized the network topology and restructure network assets to accommodate an ever-increasing demand for resources. Constantly monitored the systems to ensure that the systems were up to date with security package updates.

TENSQUARE, SAN JOSE, CA

8/1999

- 7/2001Sr. Unix Systems Administrator

Designed, installed, configured and maintained the production networks, working diligently in a team environment. Assisted the NOC and Engineering teams with the design of the network systems, procedures, and overall architecture of Tensquare s distributed network. Managed every aspect of their ATM cloud, which included maintenance of the existing customer base and equipment, as well as implementing new procedures and additions to the network.

MCI WORLDCOM, HAYWARD, CA

3/1998

- 8/1999Network Engineer

Maintained all of the voice and data lines going through the north bay at the Hayward Office. Supported lines ranging from POTS/DS0 to fiber optic lines (OC192). Responsible for the continuous operation and maintenance of voice and data switches, digital cross connect systems, and multiplexers from a variety of vendors.

US AIR FORCE, ONIZUKA AS, SUNNYVALE, CA

2/1995

- 7/1999Circuit Activations Engineer

Engineered installation and testing of new circuits in the AF Satellite Control Network. Activated over 2 million dollars of commercially leased communication circuits. Managed over 2 million dollars of AF Satellite Control Network communications equipment. Engineered, installed and tested database system for the Air Force Satellite Control Network. Engineered the installation and tested Fiber channels for Worldwide Communications Network.

Network Control Technician

Monitored and controlled the performance of communications networks and systems for the AF Satellite Program. Provided the configuration, operation, and restoration of communications links for US Space Program. Analyzed communications network capabilities and performance. Identified problems, and took corrective actions. Direct and make operational adjustments to communications computer systems.

EDUCATION AND PROFESSIONAL TRAINING

BS

Physics - University of Puerto Rico, Mayaguez, PR, 1999

Communications-Computer Systems Control Journeyman, Sunnyvale, CA, 1998

AFSCN DSIS System Operator, Sunnyvale, CA, 1998

AFSCN Telemetry, Tracking and Commanding Systems, Sunnyvale, CA, 1997

AFSCN Timeplex Link-1 Facilities Management System, Sunnyvale, CA, 1997

AFSCN GDC MegaMux Transport Management, Sunnyvale, CA, 1997

Air Force Satellite Control Network, Sunnyvale, CA, 1996

Communications-Computer Systems Control Apprentice, Biloxi, MS, 1995

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