SUMMARY:

• Senior J2EE Developer with 12 years of IT industry experience in analysis, design, development, customizations, and implementation of enterprise applications encompassing a wide range of skill sets, roles, and industry verticals.
• Hands on experience in Big Data - Data Extraction, Transformation, Loading and data Analysis on AWS platform.
• Experienced in Agile Methodologies and Test Driven Development to keep projects accountable & on track.
• Proficient in SQL, SP, Triggers, Functions, Indexes, and performance tuning of the queries for large database.
• Adept in generating test cases with test automation and automated regression test tools like JUnit.
• Ensured defects found in Production and QA are logged, monitored, fixed and reported complete.
• Performed in the roles of Application Designer, Technical & Development Lead, and Application Support.
• Review and approved external parties systems and solutions as per specification.
• Participated in peer code reviews, mentoring junior developers, build and deployment activities.
• Quick learner and self-starter with ability to prioritize tasks and to meet deadlines.
• A team player with involvement in a combination of off-shore & on-site parties.

TECHNICAL SKILLS:

Languages: Java, J2EE, C++, XML, XSL, XSLT, SQL, Python, PHP, Scala, C#

Big data: Hadoop, Hive, Spark, Elastic Search, Redis, Oozie

AWS: S3, SQS, Lambda, Data Pipeline, Redshift, EMR, Dynamo DB

Framework: Spring, Hibernate, Struts, iBatis, Velocity template, Python s popular module

Web Services: JAX WS, JAXB, WSDL, SOAP, RESTful, Postman, soapUI, JSON

Application servers: Tomcat, WebSphere Process Server, Jboss, Jetty, Apache

Database/Tools: Oracle, SQL Server, MySQL, PostgreSQL, TOAD

IDEs: Eclipse, IntelliJ Idea, Pycharm, WebSphere IDE, Cast Iron Studio, Visual Studio

Build/Other Tools: Maven, Jenkins, Ant, Git, SVN, Splunk, putty, Jira, Confluence, AWS-cli

Methodologies: OOAD, Agile, Scrum, Kanban

PROFESSIONAL EXPERIENCE:

Sr. Software Engineer

Confidential, New York City

Responsibilities:

• Writing Scala module which is reading large sets of unstructured data from S3 bucket, partitioning and producing JSON/Parquet file. Applied business logic on Spark, put aggregate data into o/p file. Deploying to Lambda by Jenkins.
• Scala, Jenkins, Spark, Parquet, AWS - S3,SQS,Dynamo Db, Lambda Function

Confidential

Responsibilities:

• Scripting Python module to read on/offline client’s order data from S3 and processed by Lambda, for attribution.
• Python, Hive, Jenkins, AWS - S3,SQS,Redis, Lambda function

Confidential

Responsibilities:

• Developing Python module to improve existing ROAS (up to 600%), after applying Machine Learning algorithm. Uses Spark to get the aggregate result which runs AWS data pipeline/EMR cluster.
• Python, Spark, AWS - S3,Data pipeline, Redshift, EMR
• Creating Java module runs on Lambda function, to pull message from SQS and parse the message to know input file.
• Making mapper/reducer class to produce aggregate data after parsing JSON file. Creating class dump data to Redis.
• Generating a unique key for each metrics. Creating dashboard on grafana to produce live metrics.
• Java 8, Graphite, Grafana, AWS - S3,SQS, Redis

Job monitor/alert

Confidential

Responsibilities:

• Developing Python classes which read real time data of job details from Oozie and produce their current status in time/percentage (is faster/slower respect to avg time) and also produce which job is slower or failed with the error message. Send real time alert if any job is slower than a threshold or failed. All data sends to Datadog dashboard.
• Python, Corn, Mysql, Oozie, Datadog, Hive, Redshift
• Wrote scripts to export data to Elastic Search and a Python module which returns data through Restful API.
• Python, Flask, Angular Js, Logstash, Sense, Postman, SQL Server, AWS - Elastic Search

Sr. Software Engineer,

Confidential, New York City

Responsibilities:

• Designed and developed 15+ major components of equinox.com including: Membership, Calendar, Payment, Corporate sales and CRM. All of the components were written in Java, spring, Hibernate, and used Web services modeling techniques and SOA based strategies to meet stakeholders’ requirements.
• Wrote special hibernate mapping tools which were generating hbm, DAO, DAO Impl, mapper classes.
• Created scripts to optimize the HQL query, avoiding Select N+1 problem and improved performance of DAO layer.
• Analyzed systems and wrote requirements to Confluence by using MS Visio.
• Deployed code in dev, test/stage environments and worked with devops team to push the code into prod.
• Wrote unit and system integration test cases using jUnit and dbUnit framework. Wrote job to see service’s status.
• Worked closely with QA team and business stakeholders to test system during the testing phase.
• Created integrating business modules, process flow on Enterprise Service Bus by IBM tools.
• Devised a framework which was using for changing binding of endpoint dynamically.

Confidential

Responsibilities:

• Exposed web services, created connectors to cloud endpoint/database, transformed data according to business.
• Used Salesforce API and SOQL query language to verify data at salesforce.
• Linux, IBM WebSphere Integration Developer, WebSphere Process Server, Java, Hibrenate3, Spring, Spring boot, AOP, Google framework - joda-time, guava, SOAP, RESTful, SQL Server, SoapUI, Postman, IBM Cast Iron, SVN, Atlassian Confluence, Jira, Agile, Python, Jenkins, maven, Salesforce.com, mosocloud.com, findBugs.

Software Engineer

Confidential, Maywood, NJ

Responsibilities:

• Involved in design and implementation of system and participated as scrum master with offshore team.
• Used java for extracting meta data, Exif, from image. Used iReport and Spring MVC to create report.
• Mac, RCP, Java1.6, iBATIS2, Hibrenate3, Spring, Agile, JSF, DWR, Rich Faces, jQuery, Oracle10g, Tomcat6.

Software Engineer

Confidential

Responsibilities:

• Defined component detailed design and used it as a service; reports were generated by iReport and Jasper report.
• Java 2EE, Hibernate3, spring, Struts, iReport, Jasper Report, Oracle9i, MySQL 5, PHP, Tomcat, Apache.

Software Engineer

Confidential

Responsibilities:

• Devised own framework for report engine. Environment: Windows, PHP, Smarty, Apache, MySQLClient: PKSF, pksf-bd.org:
• Used Struts and MVC for application and wrote Ant scripts to create build, run automated test.
• Linux, Windows 2K, Java (1.3), Struts, Oracle Developer (6i), Report (6i), Oracle Database (9i), Tomcat.