Software Engineer

medium

github

Pandurang Patil  • Peerlist

Storage Foundation Manager is a free license add-on to Veritas Storage Foundation that provides centralized application, server and storage management capabilities across a heterogeneous infrastructure. For the first time administrators can centrally manage diverse data center environments rather than relying on a range of solutions that don't function across different platforms. Now administrators can focus on driving operational efficiencies rather than fighting fires.

Technology: C & Perl

Contribution: 
•	Worked on to support SFMS centralized patch update module on windows from a Linux Central server.
•	Worked various enhancements and bug fixes.

Storage Foundation Manager Server (SFMS)

GWT wrapper over GWT wrapper on top of Javascript library of Code mirror http://codemirror.net/index.html

Source - https://github.com/pandurangpatil/gwt-codemirror


GWT-CodeMirror

●	Integrated data providers like eXelate, Bizo, and Quantcast with audience platform of the Pubmatic
●	Implemented eXelate taxonomy updater by invoking eXelate’s web service.
●	Created eclipse setup for existing dev setup for java application and created dev setup guide for the same.
●	Converted java build setup from ant to maven with required directory restructure.
●	Created complete set of instructions guide to create eclipse dev setup using m2 eclipse and m2 eclipse extras plug-ins.
●	Conducted few trainings on maven.
●	Carried some performance tests on Mongodb to test the time it takes to dump or export data in MongoDB while it is loaded and also to check the time it takes to dump or export a big amount of data. 
●	Implemented common shell scripts to take MongoDB dump in bson or json form in date-wise directories and scheduled it to take daily backup in a separate directory through cron job.
●	 In a similar fashion to that of backup, implemented import script to import previously exported data either in json format or bson format, either compressed or uncompressed. 
●	Implemented Audience reporting from RTB logs. 
●	Worked on some production issues.

Audience

Seedlingsolutions will provide consumer analytics to merchant based on transactions made by the consumers through credit or/ debit card. This tool is targeted to small merchants who are registered through online payment gateways. Small business owners can market more effectively with fully automated data mining and marketing analytics with this tool.

Technology:
Java, J2EE, JPA, Maven, Web-services, AJAX, JavaScript, GWT (Google web toolkit), Google visualization api, Mysql & Eclipse.

Contribution:
Created sequence diagrams and designed few modules
maven build script
Designed and implemented service architecture based on custom protocol with underlying protocol as JSON as well as GWT client stubs.
Implemented Consumer Management module which takes care of persisting incoming consumer information and also persist funding source information by annonymizing it.
Did the integration of all the service modules and GUI (GWT).
Worked on implementing CSV parser module to upload the transaction in the form of csv file (Parsing it and validating it).
Implemented Contact query service which will send the query made through portals contact page as an email to configured email id or distribution list using commons-email api.
Implemented User Management Service which will manage the users and provided authentication service to authenticate the user credentials.
Added Ehcache layer and configured it for distributed mode.
Implemented use registration and authentication.
Implemented automatic deployment of the different modules to inbuilt tomcat server to run the Junits against the deployed application using Maven script.
Implemented GWT Junit test case’s to test all service communication between GWT module and the corresponding Service module.
Implemented Junit test cases for all the code which I have written.
Installed artifactory and configured internal Maven repository to host project artifacts and also some third party artifacts.


Seedlingsolutions

GWT wrapper on top of recaptcha V2 Javascript API

Source - https://github.com/pandurangpatil/gwt-recaptcha

GWT-Recaptcha

Sample which will demonstrate integration of Guice with GWT. This sample also demonstrates how to use multiple persistence units with Guice

Source repo - https://code.google.com/p/guice-gwt/

Guice with GWT

Veritas Command Central Storage 5.0 is a storage resource management solution that provides centralized visibility and control across heterogeneous storage environments while reducing risks and costs

Technology: C++, Perl & VBScript

Contribution: 
•	Worked on windows support for remotetlets by exploring Windows WMI API using C, CPP & DCOM.
•	Implemented remotelets functionality for windows.

Veritas Command Central Storage

Mobile Ad Network which will enable advertisers with the ability to target ads based on the Mobile operator, device, operating system, genres, time & day, geo targeting. I have been hired to spear head Adworks engineering team. My responsibilities involves operate the existing offering using OpenX, as well as design, plan and build, distributed, low latency and fail safe Ad Network from scratch. Build prediction engine to place appropriate bids by taking part in RTB Exchange.
• Manage engineering team of 12 people.
• Initiated process to operate existing offering through Openx with the team of 3 people. Which 
includes working on Productions issues, on boarding new publishers as well as monitoring the setup.
• Prototyped and did benchmarking with Jetty, Netty and Http-Core to be used for HTTP Components.
• Architected, designed and planed different components required for Complete AdNetwork. 
• Created initial setup of code repository by defining possible Modules and directory structure.
• Trained team members for Http-Core, Google Guice and ZeroMQ.
• My day to day activity involves monitoring the progress of the implementation, mentoring team members with required technologies and define new tasks with details as well as design new modules.

Technologies: Java, J2EE, Maven, Apache HTTP-Core, Web-services REST, Guice, Python, Bootstrap, MongoDB and Zero MQ

AdWorks

GWT wrapper on top of Javascript library of introjs http://usablica.github.io/intro.js/

Source - https://github.com/pandurangpatil/gwt-introjs

GWT-Introjs

DART Enterprise is the premier licensed software solution for managing, serving and reporting on online advertising for the Internet and other digital channels. It helps publishers and merchants monetize content and control all aspects of online advertising in-house using their own infrastructure. DART Enterprise 6.0 offers sophisticated inventory management, trafficking, reporting and integration features, giving you the power to maximize revenue, streamline processes and lower operating costs. It provides unprecedented flexibility in managing and reporting on complex campaigns for a wide array of both online and off line environments. You can control ad delivery with more options while reducing discrepancies and maximizing reach for advertisers. All with significant improvements in log processing to increase your efficiency. For more information refer following link
http://www.doubleclick.com/products/dart/index.aspx

Project: DART Enterprise - http://www.doubleclick.com/products/dart/index.aspx.
Client : DoubleClick Inc. NY USA http://www.doubleclick.net

Technology :Core Java, J2EE, Web Service (Axis), TIBCO’s Smart Socket, Xdoclet, Junit, AWT, Swing, C, C++, Win SDK, Apache 2.0, IIS 6.0, iPlanet and Web Logic 8.1.

Contribution:
•	I was handling team of 5 developers. 
•	Worked on migration of Ad Server and Ad Client on IIS 6.0
•	I worked on designing and implementing Web Services by using Apache Axis1.2 (Java and J2EE).
•	I was involved in creating TCO’s, for the same. 
•	Implemented Junit Test cases for the same.
•	Worked on enhancement of DE UI (AWT & Swing), enhancement of EJB component (Java, J2EE and Xdoclet) and enhancing Smart Socket communication between few of the components (TIBCO’s Smart Socket). 
•	Worked on design and implementing the displaying running status and controlling different components from the centralized location.
•	Handled several production issues.

DART Enterprise

Perspective, an integrated assessment and instruction solution, provides a road map to student improvement through enhanced assessment reports that lead to specific targeted online resources tied to remediation and enrichment.
	Assessment reports are a key signpost on the road to effective education. Accurate, actionable data that provides a reliable, valid view of student achievement must exist before parents and educators can guide students through their academic progress. To assist on the road to learning, Pearson offers Perspective™. Building on our many years of experience collecting, analyzing, and reporting student test results, we have designed Perspective to be the next generation tool in academic reporting that lead to specific resources for remediation and enrichment.

Technology: Java, J2EE, Ant, Web-services, and Weblogic 10.01

Contribution: 
•	Worked on migration of the Content Player and Study Guides modules from weblogic 8.1 to 10.01.
•	Worked on integrating those modules as a portlets with the portal (pearsonaccess).

Pearson Perspective

GWT wrapper around YouTube Iframe JavaScript Player API. This library makes it easy for GWT Developers to use YouTube Player API.

https://github.com/pandurangpatil/gwt-youtube

gwt-youtube

Engrave was being attacked by robot generated requests, which was resulting into Site being bogged down. Which in turn resulting in loss of revenue. As well as facing Site speed issue.

1. We configured their machine and setup to secure the setup. With setting up firewall and securing MySql to be accessed only from Internal network.
2. We also setup the CloudFlare CDN which resulted into improving site speed as well as reduced burden on Engrave server's.
3. We also made use of CloudFlare security firewall service to secure engrave.in from heavily flooded robot generated requests from random IPs.
4. Along with that also made use CloudFlare Page rules to improve the site caching in turn improving the page speed as well as securing servers from Robot generated requests.




Engrave.in Security

Did a POC to run Retargeted campaigns on AdGear White Label DSP by Syncing SendInBlue user ids with AdGear User Id. 

SendInBlue had their user ids synced in their apache logs. Which we had to parse and sync them with AdGear User ids and then run retargeted Campaign and verify the results and identify Cost Per Acquisition on AdGear.

SendInBlue AdGear Integration

ANSA Offline products sales analytics through Retail chains against highly geo targeted digital campaign for brand products.

ANSA ( RSI )

Sample to use GWT MVP pattern and with Request factory 

Source repo - https://github.com/pandurangpatil/mvp-test

GWT MVP and Request Factory integration Sampl

Self serve and white labelled ad server platform. Ad Agencies can use it to start their own Ad Network and Publishers can use it as Publisher Ad Server to manage their Guaranteed / Direct Demand. 

AdSirver

Aggregation automation is a tester application, which generates the aggregate summery by applying different formulas on different results for multiple combinations of group of students. The summery generated by this application and the production environments will be compared on test data to check how correctly the formulas are getting calculated. 

Contribution:
This was one of the first encapsulated project assignment taken by the Ness for Pearson client, and I was the application architect and tech lead for this project.
Worked on POC for building the comparison tool between the manually generated summary and the summery generated by production system.
Worked implementing the Cobol CopyBook and data file parser, which will first create the in memory representation of the copybook and transpose the flat file data into RDBMS table.
Worked on designing the flow, UI and DataBase for the Aggregation Automation.
Worked on small POC's to check the feasibility of the implementation of different layers with Web-service and JMS.
Worked on designing and implementing the tiles framework with struts 1.2 for Aggregation Automation.
Worked on designing and implementing the query builder through Swing and AWT.
Worked on designing and implementing asynchronous requests from WebService by using MDB.
Worked on implementing Maven and Ant script for building the different modules and integrating the same with the Cruise Control.
Worked on adding cobetura support for creating code coverage report, generating the Junit test cases report and PMD report for generating code analysis report.
Worked on implementing Login module for the application.
Conducted training on using the tool for the end user.
Conducted the demos for the UAT, which finally resulted in to sign Off of the product.


Aggregation Automation

DealWall is a flagship product of A2O Mobile. DealWall propose to help sales people to manage their leads effectively and keep tap on the same. DealWall helps to manage customer communication effective, as well as provides some analytics which help them make decisions. I was responsible for architecture, design and development of the Server side system. DealWall is expected to integrate with following services Gmail, Exchange mail, Google Calendar, Exchange Calendar, Gmail Contacts, Exchange Contacts, Google Plus profile, Salesforce, Google Drive, Share Point, Box.net, Drop box, Skype and Phone. In addition to above integration it has following features Manage contacts, Task Management, Internal Chat messenger and CRM system. This system scans user communication and tags respective communication with respective deals based on contents of the communication. User can tag specific communication explicitly. As well as DealWall automatically tags any communication that's being initiated when user is in context of any specific deal. 

• Primary Owner for all Server side implementation of DealWall.
• Revised server side architecture and design of DealWall.
• Involved in Product discussions as well building different use cases for end user.
• Responsible for Design, architecture and plan of all back end systems.
• In addition to design I have implemented following modules/features. Setting up new code base 
by defining new directory structure along with maven pom files, User on boarding and management module, Task Management, Integrations with Gmail, Gmail Contacts, Google Plus Profile api, Salesforce Oauth api, Google Oauth and Google Drive.
• Interacting with UI Team to integrate UI with back end system.
• Designed Exchange, Share point, Calendar, Sales force integration and scalable service framework with use of ZeroMQ.

Deal Wall

Identity Management Suite is a package of front end components of few Identity Management products in BMC. This product is web application which acts as a front end for products like Enterprise Security Station (ESS), Web Access Manager (WAM), Audit and Compliance Management, Request Manager, Password Management & Identity Federation Manager. A) Enterprise Security Station is product used for provisioning and managing the users, groups and related permissions in an enterprise system.ESS provides the organized and centralized facility to manage all those users residing on different systems. Enterprise Security Station comprises of 1) ESS server, 2) ESS console 3) PassPort 4) different CONTROL-SA Agents for different systems like, AD agent, winlocal agent, solaris agent, SAP agent, Oracle agent, LDAP agents etc there is big list of these agents.B) PassPort is a web application which is used to provide the facility to users (Employees) to manage their own accounts, like resetting password, changing profile information etc. C) Web Access Manager (WAM) is a product used for controlling the different *Web Applications*. It has two components WAM UI and Enforcement Agent. WAM UI is a web application which can be used to manage the different entities in to the system. Like Resource (URL for web applications), users, roles & organizations. We support different LDAPs as data storage components. Enforcement Agent as name suggests it is the enforcer to the rules created for accessing the different web applications. For this to happen every request has to go through Enforcement Agent (EA), for that either you have to install the EA on corresponding HTTP server it self or need to install EA on Proxy server and route all the requests through that proxy server. We have EA supported for different Web Servers like IIS (ISAPI dll), Apache 2.0 & 2.2 (apache module), and Domino etc.  This EA can also be installed on application servers as servlet filter.

