SUMMARY:

• Highly motivated leader and hard worker with professional attitude and work ethics. Friendly. Reliable. Deliver work on schedule. Finisher of IronMan distance triathlon, multiple full and half marathons. Avid participant of Team - In-, raised over $14,000 for Leukemia & Lymphoma Society.

TECHNICAL SKILLS:

Big Data: Hadoop (Cloudera Certified Developer for Apache Hadoop), Scala, Hive, Pig, Cascading, Cassandra, ElasticSearch, Kafka

Java (15+ years):J2SE: OOD, UML, Swing, AWT, Threads, Collections, I/O, JUnit, Log4j

J2EE (WebLogic 9.x, WebSphere, Tomcat, jBoss, ServletExec, Resin): EJB2.1, EJB3.0, Servlets, JSP, Java Mail, Hibernate, Spring, JSF, Struts, Struts SSL Extension, Spring MVC, RMI, JNDI, JDBC, SAX/DOM, jBoss Seam, Grails, Play FrameworkMobileCross-platform mobile development for iPhone and Android. Certified Titanium Developer. HTML5-based frameworks like Sencha Touch and jQuery Mobile.

SOA/Web Services: SOAP/WSDL, REST, Apache Axis, RPC/document styles, security, handlers

XML: XML, dtd, XMLSchema, XSLT, SAX/DOM

UML: TogetherJ, Rational Rose, Poseidon, JUDE

Web: HTML/JavaScript; CSS; Ajax; RichFaces, ajax4jsf, YUI, Sencha (ExtJS), jQuery

Oracle: Extensive experience in database structures design and implementation (DSS and OLTP)

Operating Systems: UNIX (Solaris), Linux (Red Hat); MS Windows 2000, NT, 98, 95, XP, Vista

Various Skills: Tableau, Flex, ActiveScript; Perl, shell, ERWiOracle Express, MicroStrategMS SQL Server (Transact-SQL), Access, MySql; MapInfo; SAS;

PROFESSIONAL EXPERIENCE:

Confidential, Sunnyvale, CA

Senior Engineering Manager

Responsibilities:

• Development of logging, monitoring and alerting tools for Confidential NOC and SiteOps: PaaS monitor, IaaS monitor, DB monitor, SLA monitor, Change Management tools, etc.
• Leading the Anomaly Detection, Root Cause Analysis, Predictive Analytics efforts of correlation of the busness and systemic metrics. Evaluation and integration of the BigData/Machine Learning solutions.
• Growing a talented team of individuals that are able to “move the needle” on key business metrics while “doing the right thing” in terms of culture, technology and processes.
• Challenging partner teams to follow through on the key principles of WalmartLabs culture: ownershipt, excellence, consistent results.
• ETL, Hadoop, HDFS, Map Reduce, Spark/Shark, Cassandra, Kafka, Storm, ElasticSearch, Spring, Hibernate, ExtJS, Tableau, Prelert
• Lead evaluation and selection of the centralized ITIL-compliant Asset Management Database

Confidential, Santa Clara, CA

Principal Software Engineer

Responsibilities:

• LogMon project - the system of high volume logging infrastructure with comprehensive reporting (Core Java, Hadoop, Flume, HBase, Hive, Impala, ExtJS). Real-time BigData aggregation and presentation, off-line Map/Reduce aggregation.
• Design and implementation of the near real-time tools for NOC and SiteOps - TreeMap and Quantized HeatMap. Quantized HeatMap is placed on the NOC wall and used for detecting systemic anomalies in Walmart clusters.

Confidential, San Jose, CA

Principal Software Engineer/ Senior consultant

Responsibilities:

• SEO Validator Chrome plugin project. (Chrome, JavaScript, jQuery, jQueryUI)
• Identify crawler/user patterns, data analysis (Apache Hadoop, Hive, Pig, Scala, Cascading)
• Click-stream, keywords, conversion, user engagement analysis
• As a part of Seller Standards organization define, design, organize and implement the platform for Seller Performance Evaluation and Reporting.
• Perform as the project lead on multiple projects for Seller Dashboard and Seller Performance Report.
• Performed as the Scrum Master for several Scrum sprints.
• Perform a key role in design and implementation of “Maestro” component - a orchestration engine for Managed Marketplace initiative.
• Lead and drive the MaestroPortal effort - an administration and analytical platform for the Maestro subsystem.
• Design and implementation of the Confidential internal cloud computing initiative. Working on the different layers of the implementation with emphasis on the front-end of the Cloud Manager.

Confidential, Los Gatos, CA

Senior Software Engineer/Technical Lead

Environment: Oracle 10g, Hibernate, Spring, BEA Aqualogic (for JMS)

Responsibilities:

• Seeding the project’s framework
• Architecture of class (domain and services), sequence diagrams of payment processing
• Develop mechanisms and rules of integrating of different asynchronous subsystems via JMS queues
• Evangelism of test-driven development, organization of regression testing (JUnit, Hudson/CruiseControl) on different system levels
• Development of functional specification for different parts of the system, including UI
• Evaluation of cloud computing (Amazon AWS) for migration Confidential subsystems to the cloud

Confidential, San Jose, CA

Senior Consultant

Environment: Java, JDBC, Hibernate, Spring, Oracle 10g

Responsibilities:

• Hot Spot analysis for slow methods and memory leaks.
• Java Heap / Garbage Collection optimization.
• Various Kernel code optimizations.
• Design of methodology document - Tuning Guide for Confidential performance engineers.

Environment: IBM JVM 1.5, Windows NT; Geronimo AppServer; JRockit; JProbe. IBM PMAT, EVTK.

Confidential

Responsibilities:

• Design and development of critical parts
• Design and development of critical parts

Environment: IBM JVM 1.5, Windows NT; Geronimo AppServer

Confidential, CA

Senior Software Engineer, Technical Lead

Responsibilities:

• Development of functional specifications of the system;
• Responsible for architecture and development of the Web Services layer;
• Development of the Web-based graphic user interface (HTML + JavaScript);
• Development of the middle tier and view components using Spring and Jakarta Struts frameworks;
• Development of the persistence layer of the application object structure using Hibernate;
• Evaluating of other persistence technologies (Toplink, JDO, iBatis);
• Development of the back-end database structure.
• Introduction and evangelism of multi-layered system (persistence, domain, service, application, view);
• Introduction of Service Oriented Architecture (SOA) and Web Services. Justification, proof of concept, architecture and implementation of the Web Services layer.
• Introduction, proof of concept, incorporating into existing application of the IOC Spring container; redesigning of the transactional context model
• Introduction, proof of concept, design of Object-Relational model (Hibernate)
• Constant applying of J2EE design patterns, such as Session Facade, Business Delegate, Service Locator, Inversion of Control, etc. Educating of team members on these patterns.

Confidential, Herndon, VA

Programmer/Analyst

Responsibilities:

• Development and support of existing Web-based graphic user interface
• Development and support of the back-end database structure
• Design and architecture of moving the application to the J2EE platform.

Environment: Oracle 8i, ERWin, PL/SQL web cartridge (OWAS); UNIX (Solaris 2.7(8)), Windows NT); Java 1.3.

Confidential, Palo Alto, CA

Senior Member of Technical Staff

Responsibilities:

• Participated in designing the architecture of the project;
• Developed underlying database structure including deployment scripts;
• Developed entity Enterprise Java Beans to build the persistent layer for the classes used by the system;
• Developed session Enterprise Java Beans to implement the Session Facade design pattern in order to reduce complexity of entity EJB structure exposed to the persistent layer;
• Developed value object classes to implement the Value Object design pattern in order to reduce number of network and database calls and increase the performance of the system;
• Developed presentation layer of the system using JSP and Swing applets;
• Developed XML writer used for presentation of end-user reports and XSL style sheets to convert these reports to HTML pages;
• Developed and optimized SQL queries.
• Design and develop data warehouse ETL (Extraction, Transformation and Loading) application for aggregation and building data marts for traffic analysis information of Confidential Intelligence product;
• Fine tuned and pre-configured the Oracle databases for large production deployments (SGA parameters, temporary tablespace, rollback segments);
• Developed backup strategy and capacity planning;
• Optimized queries time with aggregated, partitioned and denormalized to star and snowflake data-marts, materialized views and indexes.

Environment: Oracle 8i, PL/SQL procedures, packages, triggers; Oracle Expert, SQL-Loader, import/export utilities.

Confidential

Systems Analyst/Software Engineer

Responsibilities:

• Analyzed manufacturing processes, develop UML and ER diagram;
• Developed server part of the application - physical tables and PL/SQL objects;
• Developed client part;
• Integrated the application with existing ERP system.
• Designed database structure, developed physical objects, PL/SQL modules;
• Designed class structures for Java client application, implemented Java UI modules

Environment: Oracle 7, ERWin, Java AWT, JDBC

Confidential

Software Engineer

Responsibilities:

• Designed specification for the system;
• Designed and developed database structure and database objects;
• Designed the GUI and implemented it for Windows platform

Environment: Delphi, MapInfo, MapBasic, MS-SQL (Transact-SQL)