Image of Mordecai Zibkoff

Mordecai Zibkoff

Software Developer (Contract) @ Kanban Solutions

QA Engineer II at Ultimate Software

Brooklyn, New York

Ranked #661 out of 13,212 for Software Developer (Contract) in New York

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Mordecai Zibkoff's Email Addresses & Phone Numbers

Mordecai Zibkoff's Work Experience

Kanban Solutions

Software Developer (Contract)

November 2010 to April 2011

UBS Investment Bank

Associate Director (Java Developer)

2009 to 2010

Steven Douglas Associates

IT Consultant

July 2008 to November 2008

Mordecai Zibkoff's Education

City University of New York-Brooklyn College

BS, Business Management & Finance

1991 to 1998

New York University - Polytechnic School of Engineering

BS, Mechanical Engineering

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Mordecai Zibkoff's Estimated Salary Range

About Mordecai Zibkoff's Current Company

Kanban Solutions

Developed an online registration system for Sarah Lawrence college. System allows students to register for courses/programs at the college, and supports a complex, multi-round request / approval process, unique to Sarah Lawrence College. The system as a series of Jenzabar portlets / web parts, running within an asp.net application, using nhibernate for data access o/r mapping, spring.net...

Frequently Asked Questions about Mordecai Zibkoff

What company does Mordecai Zibkoff work for?

Mordecai Zibkoff works for Kanban Solutions


What is Mordecai Zibkoff's role at Kanban Solutions?

Mordecai Zibkoff is Software Developer (Contract)


What is Mordecai Zibkoff's personal email address?

Mordecai Zibkoff's personal email address is z****[email protected]


What is Mordecai Zibkoff's business email address?

Mordecai Zibkoff's business email addresses are not available


What is Mordecai Zibkoff's Phone Number?

Mordecai Zibkoff's phone (212) ***-*226


What industry does Mordecai Zibkoff work in?

Mordecai Zibkoff works in the Information Technology and Services industry.


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Mordecai Zibkoff's colleagues are Brandon McKune, Vincent Faller, Nicholas Merino, Amber Reedy, Eric Baumgartner, Justin Munger, Ryan Gates, Richard Campbell, Jorge Yunes, and Clara Cho


About Mordecai Zibkoff

ūüďĖ Summary

Software Developer (Contract) @ Kanban Solutions Developed an online registration system for Sarah Lawrence college. System allows students to register for courses/programs at the college, and supports a complex, multi-round request / approval process, unique to Sarah Lawrence College. The system as a series of Jenzabar portlets / web parts, running within an asp.net application, using nhibernate for data access o/r mapping, spring.net and alot of jquery / ajax to support a complex front end UI. From November 2010 to April 2011 (6 months) Associate Director (Java Developer) @ UBS Investment Bank Developed the Pledge component of the new Collateral management system, for the stock borrow loan group. The component pledges excess collateral against exposed short positions in the most cost effective way possible, given the collateral‚Äôs risk classification, cost to trade and attractiveness to the borrower. The System is composed of a series of java beans hooked together via spring framework, and exposed to the front end via web services, and uses a proprietary persistence layer, loosely based on hibernate. Developed business layer code and unit tests using Netbeans and Easymock. From 2009 to 2010 (1 year) IT Consultant @ Steven Douglas Associates Worked on projects for Credit Suisse. From July 2008 to November 2008 (5 months) QA Engineer/Developer II @ Ultimate Software Develop/Maintain the automated test suite for Recruiting Module of the Ultipro HCM system. This system consists of a Knockout/Angular/ReactJS front end, ASP.NET web API RESTful middle tier, MongoDB, Elastic Search and RabbitMQ.Achievements:‚óŹ Increased the number of failure free runs of Integration test suite from 35% to 65%. Increased the number of failure free runs of the UI test suite from 15% to 30%. Rebuilt data seeding and cleanup processes, and fixed broken tests and application bugs.‚óŹ Decreased the execution time of all parts of the suite from 1 hour 15 minutes to 40 minutes. This was done through performance analysis, removal of unnecessary waits, reduction of redundant calls, and batching and paralleling data seeding.‚óŹ Corrected memory leaks in the Recruitment application. The resulted in a 20% smaller memory footprint in the application and eliminated the need to restart the application every few weeks. Miami/Fort Lauderdale AreaLead Software Developer in Test @ Medidata Solutions Developed and maintained the SpecFlow based test suite for Rave, the Medidata flagship product, an ASP.Net Web application, consisting of Web Forms, Microsoft MVC and WebAPI. The suite comprises close to 2000 scenarios, implemented using c#, WebDriver, ADO.Net and HttpClient. The test suite runs as a Jenkins Job using PowerShell scripting.Achievements:‚óŹ Test reliability Improved from 50% of runs terminated prematurely to > 1% ‚óŹ 500+ failures reduced to less than 5 per run, with a number of 0 failure runs‚óŹ Execution Time went from 48+ hours per run to less that 8 hours, while test volume more than tripled‚óŹ Reduced the size of the test framework by over 1 million lines of code, while still retaining functionality‚óŹ Trained and lead 2 other developers in maintaining and developing the test suite‚óŹ Built tools to accelerate troubleshooting and automate a number of validation tasks.‚óŹ Fixed a number of Application bugs that were discovered with the suiteThe work consists of repairing step definitions, root cause analysis of failures within the system under test, bug fixes to the system under test, incremental re-engineering of the test suite to improve performance, and composition of new test suites to test new scenarios, using the UI, database, and web service calls. Also responsible for developing a new suite of tests around iMedidata, a data exchange system that connects rave to other systems in the Medidata product suite. iMedidata is a Ruby on Rails based web application, Work consisted of setting up a test environment, which included ruby on rails, MySql, PostgreSQL memcached and a host of Ruby Gems, writing new page models, SpecFlow step definitions and feature files. From June 2014 to June 2017 (3 years 1 month) 350 Hudson St.Senior .Net Developer @ FNC Developed the next version of AppraisalPort. The system uses Entity Framework, an inversion of control/dependency injection container (supports NInject and Simple Injector IOC Containers), asp.net MVC, and unit testing to exceed 95% test coverage. The system serves as a data hub for a number of existing Loan Origination Systems, as well as Appraisal management systems. Achievements:‚óŹ Built over 500 automated integration tests in order to ensure that existing legacy interfaces work as expected, all of which execute in under 60 seconds.‚óŹ Designed and build the supporting Http Handlers used to support all legacy downstream applications. Due to the testing, integration with existing systems was complete and functioning within hours after code completion‚óŹ Designed And Developed a number of WebAPI controllers, As well as MVC Controllers, Razor Views, and KnockoutJS front end logic ‚óŹ Integrated Hawk, an HMAC based authentication protocol, for secure communication between various distributed components within the system. ‚óŹ Built a suite of WebDriver based UI tests of the FNC Collateral Management System (CMS). ‚óŹ Developed features and fixed bugs on Duet, an asp.net Webforms application used to service the Residential Mortgage security industry. New feature includes a bulk uploader component, which applies business rules to excel import data. System is high performance, able to validate and insert data at a rate of 10k records/sec. From October 2012 to June 2014 (1 year 9 months) Oxford, MSSenior Developer @ SchoolNet Achievements:‚óŹ Lead a team of 3 developers to re-architect and develop Respond, an Asp.Net web forms application, SQL Server database, and Entity Framework. ‚óŹ Development consisted of migrating the data access layer to Entity Framework, developing unit tests with Microsoft test framework and Moq, a mock framework for .Net, and a suite of selenium web tests.‚óŹ Modified msbuild scripts in to import/update test plans as part of a nightly build. ‚óŹ Developed new features across the Schoolnet product line, including Assess (student assessment), Account (Student information Data warehouse) and Outreach (content management for external parties), ‚óŹ Responsible for growing and maintaining a suite of over 400 Selenium Web tests. Managed 2 other developers in this task as well. From February 2011 to October 2012 (1 year 9 months) New YorkSoftware Developer (Contract) @ The New Teacher Project .Net Developer, DBA Worked to develop TeacherTrack2, a web based tool for teacher recruitment. The system consists of an ASP.NET Web site, SQL Server Database, Data Access Through NHibernate, Text based search using Lucene.Net, a Silverlight administration tool, a series of Workflow Foundation workflows, and an additional Data warehouse Database, populated using SQL Server Integration Services, and reported on using SQL Server Reporting Services. Responsibilities included developing web code using asp.net 4.0, Javascript and Jquery, Development and maintenance of SSIS packages, Stored Procedures, RDL reports, middle tier components, Web and user controls, as well as unit tests, integration tests using Nunit and MBunit, and automated web tests using Selenium. From May 2010 to November 2010 (7 months) Brooklyn, NYSoftware Architect @ Netik Developed a market data portal for Millenium BCP. The application integrates with the existing Apache tomcat jsp application, allows users to see corporate actions, news and pricing of any security within their market data feed. Developed using C# ASP.Net, Oracle PL/SQL.Developed a reporting system for Tadawul, the Saudi Stock Exchange. The system delivers financial reports to hundreds of thousands of investors, and scales up over a large farm of Web and application servers. The system displays data in both English and Arabic. Developed using C# ASP.Net, Oracle PL/SQL and IDEAL.Developed and deployed a Securities Cross reference data maintenance application and a Position/transaction reconciliation tool for BNP Paribas/Aberdeen. Applications were developed using C# ASP.Net, Oracle PL/SQL and IDEAL.Developed new reports for Pershing Prime brokerage using the IDEAL, and Microsoft Reporting. Managed 3 offshore developers in the development and maintenance of IDEAL, a rapid application development tool, written in C#, VTL, TSQL and PL/SQL. Features included server side sorting and paging for Grid View lists, auto creation of Microsoft Report definitions, and hosting ASPX pages, and support of dynamic SQL selects (user configurable select lists, search criteria etc,). Included use of the AJAX Toolkit and web extensionsDeveloped a Custom HTTP module for performing custom authorization handling.Developed Report Explorer, an administrative tool for the InterView Enterprise Reporting product. The system consists of an http handler, SQL server, Visual Studio 2005, XSLT and Javascript technologies. Developed request editor, a Windows Forms application for managing Report Explorer metadata. From March 2006 to December 2009 (3 years 10 months) Software Developer (Contract) @ Credit Suisse Project Manager, Netik InterView Developer (Contract)Developed extensions to the Credit Suisse Netik InterView / Prime Services Data WarehouseProduced functional requirements, technical specifications, Database and front end ASP and XSLT code for the ‚ÄúItems For Attention (IFA)‚ÄĚ and ‚ÄúPortfolio Accounting‚ÄĚ projects. The IFA project is a tool used by Credit Suisse client representatives to examine post trade positions, activity records, interest accruals for anomalies such as large Wire transfers, Boxed or illogical positions, large interest accrual swings, etc. and track them.The online portfolio project was developed to allow interactive access for clients to their financial data over the web, through Netik InterView, without having to expose their accounting system, Advent Geneva, to the internet.The Credit Suisse InterView installation is built on Oracle 9 and Sybase ASE as well as classic ASP and XSL technologies From July 2008 to November 2008 (5 months) New York, NYSoftware Developer @ SunGard Assisted in the development of the Short Rebate Allocation System. The system used various financial feeds to calculate rebates due to securities borrowers, and profit/loss for broker/dealers. The system consists of a number of .NET remoting services, an ASP.NET website, and SQL server. Achievements included optimization of calculation through multithreaded code, and improved database loading through bulk load, resulting in an 800% overall improvement in performance. Refactoring of aspx pages, resulting in a code reduction of over 75%. Development of UC4 job plans to execute calculation and data load. From March 2008 to July 2008 (5 months) Developer @ Avanade Developed the trade capture/market data system for UBS Global Structured Credit Derivatives department. The system consisted web services, Oracle 9 database, and Windows Forms Applications.Developed the Flashvue executive search /video resume product. The system consists of asp.net websites, web services, SQL server, and a custom coded DRM license server. From December 2004 to April 2006 (1 year 5 months) Software Developer @ Vanguard Direct Developed the New York City Human Resources Administration‚Äôs application for processing bar-coded benefits renewal forms. The System was built with C#, .NET remoting, and SQL server.Secured and maintained the sixflags.com website and database. Redeveloped ASP forms, eliminating scripting and SQL vulnerabilities, Secured SQL accounts, and optimized ADO calls and SQL queries.Developed the New York City Department of Health and Mental Hygiene‚Äôs Corporate Wellness website. The system was built with ASP, VB.NET, SQL Server, Visual Studio .NET, and Surround SCM. Developed the New York City Employee Retirement System‚Äôs web portal. The system was built with VB.NET, SQL Server, Visual Studio .NET, and Visual Source Safe.Developed an Access database for generating bills of lading for Vanguard Direct.Developed, Installed and Configured JSP web pages and Java Bean components for pseg.com From March 2002 to December 2005 (3 years 10 months) New YorkLead Software Developer @ Finra Currently responsible for all automated testing initiatives for the following applications: Risk Assessment / Surveillance Workspace (RAW), Exam Workspace (EXAM), and Regulatory Extensions (REX) applications. Both of these applications are java web applications, with PostgreSQL as a back-end database, hosted on Amazon EC2. Achievements:‚óŹ Successfully introduced the use of pgTAP, a test framework for unit testing PostgreSQL stored procedures. Measured code coverage of these tests using Piggly Postgres.‚óŹ Introduced Cucumber JVM for testing the business scenarios in REX. This allowed of well documented test cases that the business could easily understand.‚óŹ Built a database table mocking framework to test hibernate queries separate from real database schema. ‚óŹ Developed Static Analysis tools for use in catching bugs that are the result of misuse of spring Transaction annotations, through the use of the SPOON AST processor and Maven Plugin. From June 2017 to September 2018 (1 year 4 months) Greater New York City Area


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Mordecai Zibkoff's Personality Type

Introversion (I), Intuition (N), Thinking (T), Perceiving (P)

Average Tenure

1 year(s), 6 month(s)

Mordecai Zibkoff's Willingness to Change Jobs

Unlikely

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