SUMMARY

• Ten plus years of experience in Web/Application Development in analytical programming using python with skills in analysis, design, development, testing and deploying software applications.
• Good experience using various python libraries to speed up development (libraries used: Beautiful Soup, SciPy, Matplotlib, Python - twitter, Pandas data frame, network, urllib2, MySQL dB for database connectivity, JSON libraries).
• Implemented Hadoop stack and different big data analytic tools, migration from different databases (i.e. Teradata, Netezza, Oracle, and MySQL) to Hadoop.
• Participated in different projects Confidential as AML, Fraud, ERP, CRM, BI and banking platforms, experiencing different methodologies including Agile, XP and Scrum.
• Expertise in Object Oriented concepts like Creating Classes, Inheritance, Constructors, Polymorphism, Encapsulation, Overloading and Overriding.
• Experience as a Python Developer in design, development, testing, maintenance and documentation of Enterprise applications using various technologies, analyzing complex business requirements & mapping them to system specifications.
• Experience in the Hadoop ecosystem components like HDFS, Spark with Scala and python, Zookeeper, MapReduce, Pig, Sqoop, HBase, Hive, Flume, Cassandra, MongoDB, Oozie, Kafka, Flume, and TEZ.
• Experienced in developing web-based applications using Python, Django, AWS, WSGI, PostgreSQL, Redis, HTML, CSS, JavaScript, JQuery, and XML.
• Experience in the field of Data warehouse using ETL tools Confidential as DataStage, Power Mart 9x/8x databases as DB2, Oracle, MS SQL Server and Teradata.
• Capable of processing large sets of structured, semi-structured and unstructured data and supporting systems application architecture
• Experience in leading multiple efforts to build Hadoop platforms, maximizing business value by combining data science with big data.
• Excellent experience with Python development under Linux/Unix OS (Debian, Ubuntu, SUSE Linux, RedHat Linux, Fedora) and Windows OS.
• Proficient in SQL databases MySQL, PostgreSQL, Oracle and NoSQL databases MongoDB, Cassandra, HBase.
• Experience in version control systems using CVS, SVN and Git/GitHub and issue tracking tools like Jira and Bugzilla.
• Highly analytical and detailed with a documented track record in full software development life cycle (SDLC) methodologies and agile techniques.
• Strong experience as Business Intelligence Developer and Data Analyst in Production, Development and Staging Environments.
• Extensive experience in Text Analytics, developing different statistical machine learning, Data Mining solutions to various business problems and generating data visualizations using Python, and Tableau.
• Mapping and tracing data from system to system in order to establish data hierarchy and lineage.
• Used Data Lineage and Reverse engineering as a way to track back errors in data till the data source.
• Well versed in writing test cases using Nose, unit test and Robot test frameworks
• Experience working lead for small to mid-size teams and mentor junior and mid-level developers in several projects throughout career.
• Excellent analytical and problem-solving skills and ability to work on own besides being a valuable and contributing team player.

TECHNICAL SKILLS

Programming Languages: Python (2.7,3.x), C/C++, PHP, JavaScript, Java, Shell Script, & Perl, SQL

Web Technologies: Django, HTML5, CSS3, JavaScript, JSON, JQuery, AJAX, XML, NodeJS, ExtJs and Bootstrap.

Web Services: AWS (EC2, AMI, EBS Cloud watch, AWS Config, Auto-scaling, REST, SOAP, WSDL

Python Libraries: BeautifulSoup, NumPy, SciPy, Matplotlib, Python-twitter, Report Lab, Urllib2, HTTPLib2, Pickle, Pandas, PyPI, PySpark, Pygit.

Big data: Hadoop, Pig, Hive

RDBMS: Oracle, MYSQL, SQL Server, SQL Lite, DB2, MS Access

NoSQL: MongoDB, Dynamo DB, Cassandra, Redis

Operating Systems: Windows, Linux, Unix, Mac

Bug Tracking tools: Bugzilla, Jira, Confluence, VersionOne

Python Libraries: Pandas, Numpy, UnitTest, JSON, CSV, XML, XLS

IDE’s: PyCharm, Sublime, Eclipse, Spyder and NetBeans, Atom, Sublime Text, Visual Studio.

Version Control Tools: Git, GitHub, SVN, VSS

Technologies: Netconf, Yang, Openstack, BSCS, MSCS, MS Visio

Framework: Software Development Life Cycle Agile Methodology, Scrum

PROFESSIONAL EXPERIENCE

Confidential, San Antonio, TX

Lead/Senior Software Engineer (Python)

Responsibilities:

• Designing and building full end-to-end Data Warehouse infrastructure from the ground up on Confidential Redshift for large scale data handling.
• Developed Spark program using PySpark API with Hive and SQL.
• Write complex stored procedures to extract data in Redshift.
• Create and update Python/Unix scripts.
• Create and update Pig/hive/Sqoop/Hadoop scripts in order to process structured and unstructured data.
• Create and update ETL DataStage jobs.
• Create and analyze NoSQL/SQL queries and tables.
• Create and update Control-M cycles in order to schedule ETL and scripts Runnings.
• Responsible for ETL and data validation using Python scripts.
• Worked on Quality Check scripts for matching extract count and trigger error in case of mismatch count in extracts using python.
• Worked on AWS Data Pipeline to configure data loads from S3 to into Redshift.
• Worked on boundary queries for media plan and digital media Cypher queries.
• Deploy and execute python scripts using Unix command line.
• Used Design patterns efficiently to improve the code reusability.
• Took part in the entire project's lifecycle which includes Design, Development and Deploying, Testing, Implementation and support.
• Lead and coach to the fresher and junior developers.

Environment: Python, PySpark, Pig, Hive, Sqoop, Hadoop, ETL, Datastage, NoSQL, SQL Queries, Unix Scripts.

Confidential, San Antonio, TX

Senior Python Developer

Responsibilities:

• Involved in building database Model and Views utilizing Python, to build an interactive web-based solution.
• Create and maintain paralells/sequential jobs in DataStage.
• Create DataMarts in Data Warehouse with Netezza.
• Verified the Data completeness, Data Migrations, Data transformations and Data Quality
• Managed development, testing, and implementation of various Transportation Management Crystal Reports for new customers which was important in the onboarding process.
• Create and update queries in order to improve the performance.
• Create, update and maintain Python scripts.
• Implementing the following software: Homebrew, PySpark, Java JDK, Redis, Github/Git, implementing/creating Bash profiles, installing modules via bootstrap.
• Comprehensive experience in application development and design using Hadoop echo system tools, Big Data, Big Data/Spark Analytics.
• Experience working on Hadoop/hive/sqoop/spark development
• Successfully delivered couple of initiatives (Implementation & development) on Big Data Analytics and large data processing using Hadoop ecosystem.
• Optimized the boot time for image-generation and scan data acquisition server by enhancing the startup scripts.
• Involved and worked on different Rest API's development by using Flask and Swagger.
• Implemented Agile Methodology for building an internal application.
• Created, tested and ran the application configuration to compile the list of data quality issues and compute data quality metrics.
• Worked with development, QA, and Automation engineers to research, design, and develop test automation units.

Environment: Python, Django, Shell Scripting, PySpark, PyUnit, Data Marts, Netezza, Hadoop, Hive, sqoop, spark.

Confidential

Python Software Engineer

Responsibilities:

• Requirements analysis based on new challenge (migrate desk system to web system).
• Enhancements to databases like index, sp, queries refactoring and tuning.
• Implementing Responsive Design in order to improve the functionality.
• Assist in designing and developing a scalable recommendation platform that can be used by various systems/application
• Model View Control architecture is implemented using Django Framework to develop web applications.
• Developed scripts to migrate data from proprietary database to MySQL.
• Created Django dashboard with custom look and feel for end user after a careful study of Django admin site and dashboard.
• Ensured high quality data collection and maintaining the integrity of the data.
• Developed Use Case diagrams, Class diagrams, Collaboration and Sequence Diagrams, State Diagrams, Data Modeling.
• Developed application logic using Python and Java script.
• Extracted and loaded data using Python scripts.
• Used Pandas library for statistical Analysis.
• Developed Views and Templates with Django view controller and template language to create a user-friendly website interface
• Implemented user interface guidelines and standards throughout the development and maintenance of the website using the HTML, CSS, JavaScript and JQuery.
• Created APIs, database Model and Views Utilization Python in order to build responsive web page application.
• Participated in Agile methodology and SCRUM process.
• Supporting junior/middle developers regarding Python/JavaScript technologies.
• Consuming web services in order to perform a bidirectional communication.

Environment: Python, Django, PHP, HTML5, CSS, MySQL, JavaScript, jQuery, CSS, Bootstrap, Git, GitHub, Linux, Shell Scripting.

Confidential

System Supervisor

Responsibilities:

• Enhancements to existing system, creating new modules and doing code refactoring.
• Interacted and communicated across multiple team and to discuss requirements, design aspects of application
• Application developed parses information from logs and provides analysis of data by mapping to information in database to provide analysis for proactive monitoring and alerts
• Report generation from PostgreSQL server with SQL/PLSQL and showing it thru Django intranet.
• Developed Python feature for parsing data from logs, alerts, network dump and create a analysis matrix to display. Automating Tasks and scale systems by developing automatic test cases, building frameworks
• Bug fixing with GDB and its debugging scripting language.
• Worked on IT innovation related to existing system (suggestion, advise, etc.).
• Internal meetings in order to gather new requirements about efforts.
• Training to middle developer with new technologies.

Environment: Python, Django, Postgres, SQL, PL/SQL, Unix scripting.

Confidential

Web Developer

Responsibilities:

• Development of web systems and web sites on both frontend and backend development.
• Used Python, Django and Zope frameworks to develop applications.
• Implemented business logic using Python 2.7.
• Used HTML, CSS, JavaScript and JQuery and Implemented AJAX for dynamic functionality of a webpages for front end applications.
• Worked on front end frame works like Bootstrap for responsive webpages.
• Developed and executed various MySQL database queries from python using Python-MySQL connector and MySQL database package.
• Implemented SQLAlchemy which is a python library for complete access over SQL.
• Designed object model, data model, tables, constraints, necessary stored procedures, functions, triggers, and packages for Oracle Database.
• Experience and worked building applications using Model-View-Controller design patterns with python in client server environment setup
• Mobile web development.Development web services
• Analyzing the data flow from Network and on Mobile devices for various configuration
• Developing XML based Test cases and Use cases for testing multiple Scenario
• Testing, Debugging, Bug fixing issues related to Automation framework
• Code refactoring.

Environment: Python, HTML5, CSS3, JQuery, JavaScript, Mobile

Confidential

Software Developer

Responsibilities:

• Responsible for gathering requirements, system analysis, design, development, testing and deployment.
• Development of web systems for warehouse.
• Design and developed web applications using Python, HTML5 and CSS3 for UI design, JavaScript for application functionality, and MySQL for supporting database server.
• Participated in the complete SDLC process.
• Developed rich user interface using CSS, HTML, JavaScript and JQuery.
• Development new modules.
• Used Django framework for application development.
• Code refactoring/ Bug fixing.
• Effectively communicated with the external vendors to resolve queries.
• Used Git for the version control. Experienced in Agile methodology and SCRUM process.

Environment: Python, HTML5, CSS3, Jquery, JavaScript, MySQL, GIT

Confidential

Web Developer

Responsibilities:

• Involved in various phases of Software Development Life Cycle (SDLC) of the application like meeting with employees and customers to gather requirements, design, and analysis and code development.
• Design and developed web system and web sites using various advance technologies.
• Created optimized graphic websites and application interfaces using HTML, CSS and JavaScript
• Worked modules of front-end using technologies like HTML, CSS
• Usage of Cascading Style Sheets, JavaScript, and HTML PDF (third-party tool) for generating reports in PDF format.
• Handled all aspects of the web applications including maintaining, testing, debugging and deploying
• Manipulation and retouching of images with Photoshop
• Participated with QA to develop test plans from high-level design documentation.

Environment: HTML, CSS, JavaScript, JQuery, Windows.