Candidates About

 

Sreedhar 

SUMMARY:

·         7+ years’ experience in IT industry with proficiency in Design & Development using, Python, Django and Flask projects

·         Participated in various stages of Software development life cycle(SDLC), Software Testing Life Cycle (STLC) and QA methodologies from project definition to post-deployment documentation.

·         Experienced in Object Oriented programming(OOPs), Java/J2EE.

·         Experienced in developing web applications using Django, Flask, Pyramid, Robot, Sanic frameworks.

·         Worked with several python packages like Numpy, Matplotlib, Scipy, PyQt, wxpython, PyTables.

·         Good experience in developing web applications implementing MVT/MVC architecture using Django and Flask web application frameworks, with good understanding of ORM and SQLAlchemy.

·         Hands-on experience with industry-standard IDE’s like Pycharm, Sublime, Emacs, Eclipse, NetBeans, TOAD.

·         Experience in developing Web-based applications using Django, PHP, C++, XML, CSS, HTML, DHTML, JavaScript, JQuery, Bootstrap, RESTful and Ajax.

·         Created applications using Python under Linux OS (Debian, Ubuntu, SUSE Linux, RedHat Linux) environment.

·         Good knowledge of TLS, TCP/IP, UDP, HTTP, HTTPS, SSH and SSL protocols.

·         Good working experience in using version control systems CVS, SVN, Git and GitHub.

·         Experienced in requirement gathering, Use case development, Business process flow, Business process Modeling like extensively used UML to develop various use cases, Class diagrams and Sequence diagrams.

·         Proficient in writing SQL Queries, Stored procedures, functions, Packages, tables, views, triggers using relational databases like Oracle, PostgreSQL and MySQL.

·         Proficient in creating visually interacting dashboards and generate reports as per the client requirement.

·         Experienced with databases using ORMs/DOMs for integrating with MySQL, PL/SQL, Postgres, MongoDB, Cassandra and SQLite. Also, experienced with writing custom queries through database connectors.

·         Using Django, RESTful, SOAP, web services and SOAP UI gained experience in implementation of MVC/MVW architecture.

·         Deployed project using Heroku/Jenkins and using web services like Amazon web services(AWS).

·         Strong experience in Big data, Bigdata Integration and Analytics technologies including Apache Spark, Hadoop, Kafka, Storm, Hive.

·         Expertise in Hive Query Language and debugging Hive issues.

·         Expertise in HDFS Architecture & Cluster concepts

·         Designed and developed automation scripts using Selenium Web Driver.

·         Worked in an Agile/SCRUM and Waterfall development environment.

·         Used JIRA, Bugzilla, Jasmine, Pyunit, Junit to manage bug tracking and communications for better results.

·         Used Restful and Flask framework and web programming that allow user to utilize the create/read/update/delete (CRUD) functionality on the site.

·         Worked extensively with Unit testing/ Test Driven Development(TDD), and Load Testing.

·         Responsible for Openstack project core infrastructure including code review, continuous integration systems, and developer tools.

·         Good experience in working with web services like Amazon AWS EC2, S3, Lambda, SES, ELB, EBS.

·         Good Experience in UNIX Shell scripting& Windows Batch Scripting for Parsing Files & automation of batch ETL jobs. 

·         Skilled in writing and reviewing requirements, architecture documents, test plans, design, documents, quality analysis and audits.

·         Good experience in handling errors/exceptions and debugging the issues in large scale applications.

·         Admirable problem solving and decision-making capabilities which are renowned by associates for quality of work and unconventional solutions.

·         Highly motivated, dedicated, quick learner and have proven ability to build and manage a team and work individually.

·         Strong analytical and problem-solving skills, always striving for new Knowledge.

·         Excellent communication and interpersonal skills, ability to work independently as well as part of an integrated team.

 

TECHNICAL SKILLS:

 

Languages	Python, C, C++, Java, SQL.
IDE’s	PyCharm, Emacs, Eclipse, NetBeans, Sublime, Pystudio, PyScripter.
Web Technologies/Other	Django, Flask, Pyramid, Ajax, HTML5, CSS3, XML, Java Script, JQuery, JSON and Bootstrap.
Databases	SQL Server, Oracle 9i/10g/11g, MySQL, Postgre SQL, PL/SQL, SQLite,    Cassandra.
Frameworks	Django, Flask, Bootstrap, Tornado, Pyramid.
Web Servers	JBoss 4.0.5, BEA Web Logic, Web Sphere, Appache Tomcat 5.5/6.0.
Version Controls	SVN, VSS, CVS, Git, GitHub.
Operating Systems	MS Windows, Linux/Unix, Ubuntu, Sun Solaris.
Building & Design Tools	JIRA, Bugzilla, Jasmine, Pyunit, Junit.
Methodologies	Agile, Scrum, Waterfall.

 

WORK EXPERIENCE:

Client: AT&T, Middletown, NJ                                                                  August 2017 – Till Now

Role: Sr. Python/Application Developer.

Responsibilities:

·         Exposed to Software Development Life Cycle (Scrum) following Agile methodology.

·         Responsible for creating company’s internal platform called DCAE by using python to develop and test the components.

·         Worked with various Python libraries such as Six, Click, Pandas and matPlotLib for analysis and manipulation of data. 

·         Used Click package to create the command line interface.

·         Designed Docker proof-of-concept using Hashicorp’s Nomad and Consul.

·         Used Consul for Service Discovery and to create Key-Value pair.

·         Wrote Python scripts to parse JSON files and load the data into the Consul.

·         Used Python IDE Pycharm for developing the code and performing unit test.

·         Involved in development using Python, bug fixing.

·         Developed web-based applications using Python, Django, XML, CSS, HTML, DHTML, JavaScript and jQuery.

·         Developed entire frontend and backend modules using Python on Django Web Framework.

·         Used AWS for application deployment and configuration. 

·         Used Bitbucket for version control System.

·         Responsible for Design and maintenance of databases using Python. Developed Python based APIs (RESTful Web services) by using Flask, SQL Alchemy and PostgreSQL.

·         Created Docker images for the components(Services).

·         Designed, developed, implemented, and maintained solutions for using Docker, Jenkins, Git, and Puppet for microservices and continuous deployment. 

·         Developed web modules using SQL Alchemy built on top of the Flask framework using the REST API. 

·         Involved in Developing a Restful API'S service using Python Flask framework.

 

Environment: Python 3.x, Django 1.9, Flask, SQL Alchemy, Postgres SQL, Six, Click, Docker, Consul, CSS, HTML, JavaScript, jQuery, Bootstrap, AJAX, MYSQL, Linux, GIT.

 

Client: Discover Financials, Riverwoods, IL                                                June 2016 – July 2017

Role: Sr. Python Developer.

Responsibilities:

·         Exposed to various phases of Software Development Life Cycle using Agile – Scrum

Software development methodology.

·         Worked on Restful web services which enforced a stateless client server and support JSON few changes from SOAP to RESTFUL Technology Involved in detailed analysis based on the requirement documents.

·         Designed and maintained databases using Python and developed Python based API (RESTful Web Service) using Flask, SQLAlchemy and PostgreSQL.

·         Provided Database Administration support for high volume production Oracle 11g ,12c Databases. 

·         Designed and created backend data access modules using PL/SQL stored procedures and Oracle.

·         Designed and developed components using Python with Django framework. Implemented code in Python to retrieve and manipulate data.

·         Developed views and templates with Python and Django's view controller and templating language to create a user-friendly website interface.

·         Developed API endpoints in Scala. Used functional programming, data aggregation with pagination, and parsing using Jackson library. 

·         Used Django Database API's to access database objects. 

·         Created dataframes in particular schema from raw data stored at Amazon S3, lambda using PySpark.

·         Used PySpark Data frame for creation of table and performing analytics over it.

·         Participated in developing view pages using HTML5, CSS3, Java Script, Angular Js and Tag Libraries.

·         Experienced the server-side Java Script like Node.js, The creation of Web servers and Package 
manager like (Node Package Manager) NPM. 

·         Involved in creating responsive web pages using Bootstrap tables and grids for displaying data and styling using CSS3 for enhancing the look and feel of WebPages.

·         Used Python IDE's such as Pycharm, sublime text for developing the code and performing unit test and SIT.

·         Decent experience in UNIX in developing the application and familiar with all of its commands.

·         Developed the back-end web services using Python and Django REST framework.

·         Performing Functional testing, regression testing, integration testing, and communication testing.

·         Wrote Perl scripts to Progress DB procedure.

·         Wrote Perl scripts and Sybase procedures.

·         Have expertise with an in depth understanding of the wide range of AWS services like EC2.

·         Responsible for debugging and troubleshooting the web application.

·         Used Design patterns efficiently to improve the code reusability.

·          Knowledge of Chef/Puppet as Configuration management tool, to automate repetitive tasks, quickly deploy critical applications, and proactively manage change.

·         Experience working with Puppet Enterprise and Puppet Open Source. 

·         Integrated data from multiple applications using ETL tools like SSIS, Informatica .

·         Migration of Test Content to Automation Tool using Python and XML.

·         Worked in developing the screens for delete, Edit, Enable, Disable and Impersonate Users in web application.

·         Involved in start to end process of Hadoop cluster installation, configuration and monitoring.

·         Responsible for building scalable distributed data solutions using Hadoop. 

·         Managed and reviewed Hadoop log file and also worked in analyzing SQL scripts and designed the solution for the process using PySpark.

·         Built reusable Hive UDF libraries for business requirements which enabled users to use these UDF's in Hive Querying. 

·         Experienced in migrating Hive QL into Impala to minimize query response time.

·         Creating database schema for MySQL Database and helped to draw ER-Diagrams using Microsoft Visio.

·         Managed code versioning with Github and deployment to staging and production servers.

·         Involved in deployment using Docker Container on AWS.

 
Environment: Python 2.7, Django 1.6, CSS, HTML, JavaScript, jQuery, Bootstrap, AJAX, MYSQL, Linux, Docker, AWS, GIT.

 

 

Client: Bloomberg, NYC, NY                                                           March 2015 – May 2016
Role: Python/Django Developer.

Responsibilities:

·         Exposed to Software Development Life Cycle (Scrum) following Agile methodology.

·         Used Django Framework for developing web applications using model view control architecture.

·         Managed, developed, and designed a dashboard control panel for customers and Administrators using Django, Oracle DB and VMWare API calls.

·         Worked on various applications using Python integrated IDEs Eclipse, Pycharm, and NetBeans. 

·         Automated the existing scripts for performance calculations using Numpy and SQL alchemy.

·         Extensively used python modules such as requests, urllib and urllib2 for web crawling

·         Used Numpy for Numerical analysis for Insurance premium.

·         Implemented configuration changes for data models.

·         Developed and implemented R and Shiny application which showcases machine learning for business forecasting. 

·         Used packages like dplyr, tidyr & ggplot2 in R Studio for data visualization.

·         Maintained and updated existing automated solutions.

·         Handled potential points of failure through error handling and communication of failure.

·         Performed efficient delivery of code based on principles of Test Driven Development (TDD) and continuous integration to keep in line with Agile Software Methodology principles.

·         Different testing methodologies like unit testing, Integration testing, web application testing Selenium testing performed.

·         Worked on loading CSV/TXT/DAT files using Scala language in Spark Framework to process the data by creating Spark Data frame and RDD and save the file in parquet format in HDFS to load into fact table using ORC Reader.

·         Implemented SSIS packages for data sourcing from Heterogeneous data systems using SSIS ETL Tool to support daily incremental data refresh, full loads.

·         Preparation of technical specification document for the development of Informatica Extraction, Transformation and Loading (ETL) mappings to load data into various tables in Data Marts and defining ETL standards.

·         Lock mechanisms were implemented and the functionality of multithreading has been used.

·         Python/Django based web application, PostgreSQL DB, and integrations with 3rd party email, messaging, storage services.

·         Worked on Openstack ­ Swift for moving large data files using Keystone and Horizon and integrated them into the web services and client server application.

·         Automation database programming through Perl DBI module.

·         Wrote Perl Modules and subroutine packages to facilitate code reuse, portability and modularity. 

·         Extracting data from the database using SAS/Access, SAS SQL procedures and create SAS datasets. 

·         Used Multi-Threading factory model to distribute learning process back-testing into various worker processes.

·         Developed a fully automated continuous integration system using Git, Gerrit, Jenkins, MySQL and custom tools developed in Python and Bash.

·         Design and implemented custom scripts. Extensive use of version controller Team Foundation Server (TFS).

·         Test and validated the custom scripts.

·         Delivered automated solutions for science models.

·         Anticipated potential parts of failure (database, communication points, file system errors).

·         Troubleshoot the process execution and worked with other team members to correct them.

·         Actively worked as a part of team with managers and other staff to meet the goals of the project in the stipulated time.

·         Performed troubleshooting, fixed and deployed many Python bug fixes of the two main applications that were a main source of data for both customers and internal customer service team.

·         Used Pandas library for statistics Analysis.

·         Managed large datasets using Panda data frames and MySQL.

·         Used advanced packages in AON PATHWISE for performing unit test and deploying data models.

·         Developed GUI using webapp2 for dynamically displaying the test block documentation and other features of python code using a web browser.

·         Developed the required XML Schema documents and implemented the framework for parsing XML documents.

·         Responsible for user validations on client side as well as server side.

·         Interacted with QA to develop test plans from high-level design documentation. 
 
Environment: Python 2.7, Django, HTML5/CSS, MS SQL Server 2013, MySQL, Oracle, JavaScript, Eclipse, Linux, Shell Scripting, Openstack, jQuery, GitHub, Jira.

 

Client: Goldman Sachs, NYC, NY                                               October 2013 – February 2015
Role: Python Developer.

Responsibilities:

·         Used Python scripts to generate various reports like transaction history, OATS, user privileges, limit rules and commission schedule reports.

·         Built and maintained code libraries to support analytics using Numpy and Scipy. Used Pygal and plot.ly for visualization of the data retrieved using Scrapy.

·         Managed cloud infrastructure using Openstack software to create Virtual machines.

·         Created Jenkins cluster for managing software build process through different nodes.

·         Integrated Openstack API with Jenkins to do auto deployment of VM's.

·         Implemented MVC architecture using BOTTLE for creating Restful API’s, and used Bottle plugin system to connect to the backend database SQLite and Mangodb.

·         Worked on parsing of JSON data to be used in the project received by API calls using Python Request library.

·         Used Blaze ecosystem, SQLAlchemy to operate across databases.

·         Worked with Scrapy for webscraping to extract structured data from website to analyze the specific data of a website and work on it.

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