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Aws Devops Engineer / Full Stack Developer Resume

NY

SUMMARY

  • 12 years of experience in system analysis, design, development, testing, debugging and deployment of Web based applications using Microsoft technologies (ASP.NET with C# & VB programming as front end & SQL Server & Oracle as backend).
  • Expertise in Database Designing and back - end programming in the areas of Database Tuning, Query optimization, SQL and PL/SQL including Stored Procedures, Functions, Packages and Triggers in Oracle database.
  • Expertise in Automating .Net Build and Deploy applications using PowerShell, Bash Scripting, Ansible Python Modules.
  • Strong experience in building DevOps Jenkins CICD Pipeline Jobs using Groovy Script.
  • Expertise in Automating Windows & Linux Application Boxes using AWS Cloud formation templates (EC2, EBS, S3, EFS, ELB, ENI, IAM, Security Groups, Lambda, Auto Scaling, KMS Keys) & Ansible playbooks.
  • Good Experience in using Siteminder SSO & SSL/TLS 1.2 Certs.
  • Good Knowledge on Orchestration Tools like Docker Swarm and Kubernetes.
  • Strong experience in Cassandra NoSQL Distributed database setup.
  • Good Experience in using Splunk & Datadog for monitoring Application & System logs.
  • Good Knowledge on deploying services to Cloud Foundry.
  • Strong knowledge in Object Oriented Concepts (OOPs) with best practices like SOLID principles and Design Patterns.
  • Good experience in developing Microservices using Spring Tool Suite (STS).
  • Good experience in developing RESTFUL services in both Java & .Net using Spring Tool Suite & Windows Communication Foundation.
  • Good Experience in Advanced JavaScript frameworks like Angularjs, jQuery, Bootstrap JS (Flexible to quickly learn & work with other frameworks).
  • Expertise in Microsoft Technologies such as ASP.Net 4.0, WCF, WPF, ASP.NET MVC4, Web API, ASP.NET Web services, VB.NET, C#.Net, AJAX, ADO.Net, Entity Framework, IIS, SQL Server 2008, SSIS, SSRS.
  • Good Knowledge in Data Structures & Algorithms.
  • Having Good knowledge in Operating System & Networking Concepts.
  • Extensively worked on GIT/Stash/Bitbucket, Confluence, JIRA, and Artifactory.

TECHNICAL SKILLS

Operating Systems: Windows 2000/XP/2012 R2, Unix ( Red Hat Linux, CentOS, Ubuntu)

Languages: C# .Net, VB .Net, Java Spring Boot, C & Data structures, C++, Python, PL/SQL, HTML, CSS, XML and XSLT.

Scripting Languages: JavaScript, VBScript, jQuery, Windows PowerShell, Groovy Script, Unix Bash Script, Angular JS, Bootstrap JS.

Web Technologies /Middleware: ASP.NET, MVC 4, Web API, WCF, Entity Framework.

Cloud Technologies: Amazon Web Services (IAM, VPC, EC2, EBS, EFS, ENI, S3, Subnets, Security Groups, ELB, ALB, KMS Keys, RDS Oracle), Cloud Foundry.

CICD: Jenkins

Configuration Management Tools: Ansible, Chef, Puppet

RDBMS: Oracle 12c, 11g/10g/9i/8i, SQL Server 2000/2005/2008 , MS-Access 2000.

NoSQL DB: Cassandra & Mongodb

In Memory Cache: Oracle Coherence, Mongodb

Web Servers: IIS 6.0/7.0/8.0, Apache Tomcat.

Version controls: Stash/Git/Bitbucket, VSTS, Subversion, SVN, TFS

Methodologies: Dojo, Agile, Waterfall Model

Other Tools: Visual Studio. NET 2010/2012, Visual Studio Code, Eclipse, Spring Tool Suite (STS), Toad for Oracle & SQL Developer, SQL Server Management Studio, Erwin Data modeling, JFrog Artifactory, JIRA, Confluence, Super Putty, Oracle Data Integrator (ODI), Splunk, Datadog, Wily, Tableau, Sonarqube, Fortify Scan.

PROFESSIONAL EXPERIENCE

Confidential

AWS DevOps Engineer / Full Stack Developer

Responsibilities:

  • Automating AWS Infrastructure setup for Confidential Application.
  • Created Cloud Formation Templates for the below AWS Resources. (Security Groups, EC2, EBS Volumes, Application Load Balancer, Lambda, Auto Scaling, S3, EFS, RDS-Oracle, Aurora PostgreSQL ...Etc.)
  • Perform AWS Re-hydration process for every new Confidential AMI release.
  • Perform CFN-NAG check through Infrastructure Certification process (ICP).
  • AWS Security Groups Clearance from Security Team.
  • Software Provisioning Using Ansible.
  • Created Ansible playbooks using Ansible modules / PowerShell / Bash Script / python / Jinja2 Templates for the below ones.
  • Structured the code using Ansible Roles like DEV / SIT / STG / PROD.
  • Created Custom AMI’s for the below applications
  • .Net Application Servers - Windows
  • Java Application Servers - Linux
  • Jenkins Slave Node - Windows
  • Cassandra Cluster ( Multi-Region) - Linux
  • Linux ODI Batch Server
  • Developed below Jenkins Job's for Continuous Integration & Continuous Deployment (CICD).
  • Dot Net Build & Deploy Jenkins Pipeline Jobs: Automated Windows .Net Applications Build process using PowerShell & Groovy script.
  • Cloud Foundry Deploy Pipeline Jobs: Automated Java Cloud Foundry Deploy Process using Bash Scripting.
  • Setup CICD Pipeline Jobs for Disaster Recovery Setup (DR).
  • Installed Splunk & Wily agents in all Confidential production application boxes.
  • Support Splunk Infrastructure setup for Confidential application (Setup Local SPLUNK Indexer & pushed Application/System/IIS Logs).
  • Setup a Docker & Kubernetes Node in AWS EC2
  • Package Customer Wallet Java Microservice using Docker File.
  • Create a Docker Image and Push to ECR (Elastic Cloud Registry).
  • Create persistent volume & mount to Docker containers & expose ports.
  • Create 3 node cluster using Docker swarm and test the service.
  • Create Kubelets and form the cluster using Kubernetes.

Confidential

AWS DevOps Engineer / Full Stack Developer

Responsibilities:

  • Created 12 Node cluster across the AWS region and in different Availability zone with Replication factor 3.
  • Automate the cluster creation using Ansible & Jenkins Pipeline Jobs.
  • Cassandra Data Model for Confidential Gift Card Module.
  • Scripts for Cassandra One time data load.
  • Create Schema, Roles, Tables, Grant Scripts, and Materialized Views.
  • Develop Java RESTFUL Microservices to asynchronously push data to both Oracle & Cassandra DB using Spring Boot Application.
  • Create corresponding AWS Cloud Formation templates & Ansible Playbooks for Infrastructure Automation.
  • Test High Availability and Network failure scenarios.
  • High level documentation on confluence.

Confidential

Full Stack Developer

Responsibilities:

  • Develop a single page front end application - SPA for Confidential Internal Business Reports using Angularjs.
  • Build & Deploy the application in Linux using pm2 start.
  • Release Manager to maintain code in Git/Stash with new TAGS per release & execute Jenkins Build & Deploy jobs.

Confidential

Full Stack Developer

Responsibilities:

  • Developed new modules for Auto pay enrollment & de-enrollments.
  • Angular Modules - Entire application structured with in modules & sub-modules.
  • Angular Controllers - Developed using Angular best practices.
  • Angular Views - Developed responsive web pages as per the requirement using VZ Bootstrap.
  • Developed custom Directives and Services in AngularJS.
  • Used Angular UI Routing mechanism for client side navigation.
  • Develop RESTFUL services using Windows Communication Foundation - WCF.
  • Coordinate & deploy the daily Database scripts using Liquibase jobs.
  • Analyze and fine tune long running DB PL/SQL queries.

Confidential

Full Stack Developer

Responsibilities:

  • Understand the existing Build & Deploy manual process for all above applications.
  • Create PowerShell script for both build (MS Build) & Deploy .Net Applications.
  • Create Linux Bash script for both build (Maven) & deploy Java Applications.
  • Create Linux Bash script for deploying Oracle DB Objects using Liquibase.
  • Create parameter driven Jenkins Build and Deploy jobs using PowerShell & Shell script plugin.
  • Used Extended Choice Parameter, Active Choices Reactive Parameter, String Boolean, Label, and Node Parameters for the Jenkins UI design.
  • Parameter Driven Build Script with placeholder’s.
  • Parameter Driven Deploy Script with placeholder’s.
  • Encrypt/Encrypt Script for DB Connection String & Answer sets.
  • Create Jenkins Validation Jobs for
  • Stash/Git Connectivity.
  • JFrog Artifactory Connectivity.
  • WinRM Connectivity.
  • Migrate few Oracle Customer Wallet tables to Coherence (v12.1.3) In-Memory Data Grid and a RESTFUL java service to pull data from Data Grid.
  • Setup 3 Linux Nodes and form an Oracle Coherence cluster.
  • Developed onetime loader process to Load Oracle table data to DG
  • Develop a RESTFUL Java service to invoke data from DG.
  • Migrate Oracle Customer Wallet Tables to Mongodb.
  • Design & create Mongodb schema.
  • Implemented Horizontal Scaling, by distributing data across multiple nodes.
  • Create RESTFUL services to store and retrieve data from Mongodb.
  • Used Robomongo for Querying and Monitoring.
  • Setup Oracle golden gate for data synchronization between Master Oracle DB & Oracle Coherence.

Sr .Net Developer

Confidential

Responsibilities:

  • Created RESTFUL services using ASP.NET Web API for exposing to external applications.( supports JSON & XML format)
  • Created ASP.NET MVC4 pages based on the change requests.
  • Razor Views Models Controllers
  • Involved in production code fixes.
  • Prepared database coding standards template and the shared across the team to follow.
  • Created a lot of new procedures/functions/synonyms & packages as part of new enhancements (Change Requests).
  • Implemented Exception Handling and database Transaction management (COMMIT & ROLLBACK) in oracle procedures.
  • Reviewed and provided the comments to the scripts developed by the team.
  • Created a log/Audit table in Oracle to mark the success/ failure of the jobs.
  • Automated daily monitoring of Materialized Views refresh through Email Notifications by creating a notification procedure triggered by an oracle job.
  • Involved in architectural discussions with business team.
  • Troubleshoot lot of the Complex SQL queries by Analyzing query execution plan, applying the required indexes, partitioning the huge tables with Local indexes to improve the query performance.
  • Prepared Database deployment installation instructions document.
  • Created DB links in Oracle to pull data from external database sources like SQL server/ Informatica Data Services (IDS).
  • Written complex SQL queries that has XML data column in Sql server.
  • Release and change management of Production deployment.
  • Updated the Design & Requirement Specification document with the latest client requirement changes.
  • Performed unit testing, debugging and fixed the production issues.

Full Stack Developer

Confidential

Responsibilities:

  • Redesigned entire application using MVC architecture and created high level & detail design document.
  • Created UI Screens using Razor views.
  • Created Controller classes to handle & execute application and data logic.
  • Created Model Objects using Entity Framework for data retrieval & modification using Context Object.
  • Developed new WCF Services (XML over HTTP) to achieve Service Oriented Architecture (SOA) and communication between heterogeneous applications.
  • Developed Service, Operational & Data Contract classes as per the design.
  • Used Factory and Singleton design patterns.
  • Created few new PL/SQL Stored Procedures as per business requirements.
  • Analyze, redesign and fine tune long running PL/SQL complex queries by applying table partitioning with local indexes to improve query performance.
  • Created Test Driven Application with valid test cases using Assert Statements.
  • Created Master Pages to maintain consistent layout across the pages for the mobile application.
  • Created custom user controls to provide reusability & rich user interface.
  • Coordinate with QA Team to troubleshoot, debug and fix the production issues.
  • Used Visual Source Safe as version control.
  • Attended AWS internal developer training sessions with hands on Lab exercises (IAM, VPC, Subnets, S3, EC2 creations).
  • Finished Lab assignments using AWS Web Console.
  • Created a sample working Model using VPC, Subnets, EC2 instance and hosted a demo web application.

Full Stack Developer

Confidential

Responsibilities:

  • Lead the team size of 4 people.
  • Designed Entity Diagrams using Erwin Data Modeling tools.
  • Used SQL Developer for Oracle tool for migrating the Microsoft SQL Server 2000 objects (procedures/ functions/ triggers etc. ) to corresponding objects in Oracle
  • Prepared database coding standards template and the shared across the team to follow.
  • Identified frequently occurred migration issues.
  • Analyzed migration issues and documented the resolution steps and the same is shared across the team to follow.
  • Created a structure by creating packages & procedures with in it.
  • Created a log/Audit table in Oracle to mark the success/ failure of the migrated objects.
  • Manually converted few complex Microsoft SQL Server 2000 queries to Oracle by identifying and using oracle compatible datatypes & predefined/inbuilt functions.
  • Listed down all the SQL Identity columns in SQL server 2000 and created sequences in oracle to implement the auto increment functionality for those columns in oracle.
  • Troubleshoot lot of the Complex SQL queries by Analyzing query execution plan, applying the required indexes, partitioning the huge tables with Local indexes to improve the query performance.
  • Implemented Exception Handling for all PL/SQL procedures.
  • Code review the scripts developed by the team.
  • Prepared Database deployment installation instructions document.
  • Created CRON Jobs for auto scheduled in oracle.
  • Export the SQL Server table data in to CSV files.
  • Created SQL Loaded script files to load data from CSV files to corresponding Oracle target tables.
  • Created migration scripts for the one time data load in oracle
  • Prepared High level & detailed design document.
  • Performed unit/smoke testing, debugging and fixed the errors before QA testing.

Software Developer

Confidential, NY

Responsibilities:

  • Involved in Production Support & Maintenance.
  • Identified the list of CSV and Fixed Length files shared by SAP team in shared location.
  • Created the required Temporary tables in Oracle to push data from SAP files to these TEMP tables
  • Used SSIS tool to dump data from flat files to target oracle temporary tables.
  • Created Stage and final tables for the corresponding TEMP tables
  • Written scripts by applying Transformation rules on TEMP tables and load data in to corresponding Stage tables
  • Written scripts to filter unwanted data and load it to final master tables.
  • Created a structure by creating packages & procedures with in it.
  • Reviewed and provided the comments to the scripts developed by the team.
  • Created a log/Audit table in Oracle to mark the success/ failure of the onetime data load process for individual flat file.
  • Troubleshoot lot of the Complex SQL queries by Analyzing query execution plan, applying the required indexes, using bulk inserts & updates to improve the query performance.
  • Created and auto scheduled the jobs in oracle.
  • Created migration scripts for the one time data load in oracle
  • Updated the Requirement Specification document with the latest requirement changes.
  • Updated the Design Specification document with the latest client requirement changes.
  • Performed unit testing, Debugged and fixed the errors before submitting modules to QA.

Software Developer

Confidential, NY

Responsibilities:

  • Involved in Production Support & Maintenance.
  • Analyzed all the client requirements and prepared high level architectural diagram for the application
  • Created High-level & detail design specification documents.
  • Developed few of the ASP.NET web pages using C#
  • Written few business functionalities in Data Access Layer (DAL).
  • Performed code reviews and provided review comments accordingly with some best practices.
  • Created procedures/functions/triggers using T-SQL and applied exceptional handling.
  • Reviewed and provided the comments to the scripts developed by the team.
  • Performed smoke level testing for the newly developed pages and also integration testing.
  • Performed unit testing, Debugged and fixed the errors before submitting modules to QA.

Jr. Software Developer

Confidential

Responsibilities:

  • I have involved in end-to-end delivery of this application and participated in requirement and analysis phase.
  • Analyzed all the client requirements and prepared high level design specification document.
  • Complete ownership of development and unit testing of above mentioned modules.
  • Created UI web pages using ASP.Net with C# programming.
  • Created Ajax method calls through Javascript using XMLHTTP objects.
  • Configured Confidential -LINK ( Instrument Connectivity ) to our Application and tested the Animal weighing functionality
  • Implemented business functionalities logic in Data Access Layer (DAL).
  • Created Virtual directories and hosted the application in IIS 5.0.
  • Developed several shared Assemblies ( GAC - Global Assembly Cache ) & are reused in other projects with in the same application
  • Written Code to deallocate unused memory objects for unmanaged code.
  • Created stored procedures/functions/triggers using TSQL.
  • Performed smoke level testing for the newly developed pages and also integration testing.

Software Developer

Confidential, NY

Responsibilities:

  • Prepare design specification document with latest UI Screen layouts.
  • Re-create UI screens and integrate to underlying Middle & Data Access Layers.
  • Re-write data reader’s logic with data sets & pagination in various modules that will improve Connection handling with database and fix the outstanding bugs of 3.1 versions.
  • Perform thorough end-end application testing.

Jr. Software Developer

Confidential

Responsibilities:

  • Involved in end-to-end delivery of this application and participated in requirement and analysis phase.
  • Implemented the 3-Tier Architecture in developing the .NET applications.
  • Developed business components that help in automating the background checking process.
  • Documented the functional design and technical design aspects of 3-tier applications.
  • Used C#.Net, ADO.NET, XML, XSLT and user defined class libraries in developing the business components and entities as a part of Application Layer
  • Used ASP.NET and JavaScript in developing the presentation layer
  • Build user controls using .Net, ASP.NET.
  • Developed Business and Data tier using .Net, COM+, ADO.Net.
  • Developed code behind classes and reusable components in VB.Net.
  • Implemented Forms-based Authentication to authenticate the users.
  • Developed Interfaces for data exchange using Oracle, ASP.Net, XML XSL and XSLT.
  • Developed several .ASMX pages (Web Services) & the same services are utilized in other heterogeneous applications using WSDL Url ( Web Service Description Language)
  • Developed Stored Procedures and User Defined Functions in SQL Server 2000, Oracle, PL/SQL for the business components as a part of data access layer
  • Involved in designing and documentation of flows and functional diagrams using Visio.
  • Deployment of Application on Test and Server and testing of application.
  • Done integration testing and functional testing.

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