SUMMARY

• Around 10+ year of experience in Information Technology with skills in AWS Development, DevOps, Confidential DataPower/MQ Administration and deploying various software applications, which include Web related and windows applications with emphasis on Object Oriented Programming.
• Deployed applications into the AWS cloud using Amazon EC2, AWS S3 and Created S3 buckets for EC2 instances to store all the content including HTML pages, images, CSS files and script files.
• Designed custom approach to application migration and defining workload patterns. In 3 years migrated 8 data center to AWS. Involved in migration of on - premise environments to AWS environment.
• Created tagging standards for proper identification and ownership of EC2 instances and other AWS resources.
• Responsible for creating multi-region, multi-zone AWS cloud infrastructure and managed Amazon Web Services like EC2, S3 bucket, RDS, EBS, ELB, Auto-Scaling, AMI, Route53, VPC, IAM through AWS Console and CLI.
• Change automation and used auto scaling launch configuration templates for launching AWS EC2 instances.
• Worked on deployment and management processes with Chef and AWS OpsWorks.
• Worked on AWS OpsWorks in integration with Chef Configuration management tool to maintain infrastructure.
• Deployed EC2 instances, ELBs by using Cloud Formation in AWS.
• Ability to develop and deployment of multi-tiered web based enterprise applications using J2EE technologies like Servlets, JSP, Struts, Hibernate, spring, JDBC, JNDI, Confidential MQ Series, JavaBeans and Web services (SOAP).
• Involved in performance tuning and code quality assurance.
• Experienced in working with IDE Tools like WebSphere Studio Application Developer / Rational Application Developer (RAD/ WSAD), JBuilder and Eclipse.
• Possess in-depth knowledge in java frameworks such as Struts, Spring, Hibernate.
• Hands-on experience on Architecting and securing Cloud Solutions using variousAWSServices including EC2, VPC, S3,AWSGlue, EFS,AWSKinesis, Lambda,CloudFormation, Jenkins, Terraform, RDS, Data Pipeline, DynamoDB, Redshift etc
• Results-driven Solutions Architect with extensive experience in spearheading the management, design, development, implementation and testing of IT solutions.
• Recognized leader, applying high-impact technical solutions to major business objectives with capabilities that transcend IT operation boundaries.
• Selecting the appropriateAWSservice based on compute, data, or security requirements.
• Adept at working with management to prioritize activities and achieve defined project objectives; able to effectively translate business requirements into technical solutions.
• Committed to helping organizations achieve maximum benefit from their IT investment, through meticulous testing, QA, research, development, and implementation of technologies.
• Experience in analyzing events from streaming data sources in real-time to create & maintain highly available, and fault-tolerant streaming data pipelines using EMR service
• Expert in creating and maintaining Cassandra Database cluster on EC2 instances.
• Works perfectly and effectively under stressful conditions where speed and accuracy are necessary for mission critical databases and systems.

TECHNICAL SKILLS

Markup languages: HTML5, CSS3, XHTML/XML

Datainterchange format: JSON, XML

Web Services: RESTful and SOAP

Change Management tools: SVN, GIT

App/Web Servers: IIS and Apache

Methodologies: Agile/SCRUM

Operating Systems: Unix/Linux, Windows

PROFESSIONAL EXPERIENCE:

Confidential, Issaquah WA

AWS Cloud Engineer

Responsibilities:

• Implemented running integration test suit for Chef cookbooks using ServerSpec and Docker.
• Used Serverspec to test whether the recipes have been applied to the Chef nodes.
• Wrote Chef recipes for various applications and deploying them in AWS Using Terraform.
• Used Vagrant tool to test chef cookbooks, puppet modules in different virtual environments like VMware or AWS.
• Managed servers on the Amazon Web Services (AWS) platform instances using Puppet, Chef Configuration management.
• Created Cloud Formation template stacks to automate for building new VPCs using JSON files.
• Written Cloud formation templates and deployed AWS resources using it.
• Implemented CI/CD using Docker, GIT-Hub, TravisCI, AWS ECR and Kubernetes to test, build and deploy services.
• Utilized TravisCI for automated testing, continuous integration, and continuous deployment to Heroku.
• Wrote TypeScript that is transpiled into Javascript via the CLI powered by Webpack, with a design that is informed by Google's Material Design Specifications.
• Built database Model, Views and API's using Python for interactive web based solutions.
• Developed complex web, middleware, and back end systems in Python, SQL for Linux and Windows.
• Implemented ruby scripts to import raw data from web into PostgreSQL database.
• Created ruby grpc microservice with postgres database for rehosting paycheck functionality, and interface with existing mysql payroll database.
• Deployed and monitor scalable infrastructure on Amazon web services (AWS) configuration management using Puppet and Ansible
• Implemented JAVA Web Services based on SOA architecture with SOAP and WSDL.
• Utilized Spring framework for bean wiring and Dependency Injection principles.
• Used Spring boot and creating the whole flow for messages received.
• Used of Oracle WebCenter to make run time changes for Skinning and navigation.
• Designed AWS architecture, Cloud migration, AWS EMR, Dynamo DB, Redshift and event processing using lambda function.
• Developed complex queries with MySQL and optimized sql queries by making sure having proper indexes for them.
• Responsible for modifying existing DB2 stored procedures and writing SQL queries as per requirement.
• Developed back end Services using Web API(REST), Entity Framework with AutoMapper and communicate with MS SQL Server
• Worked on performance tuning of cluster using Cassandra Configuration file and JVM Parameters.
• Used API Connect as API Gateway to expose consumption services/API to external/internal services
• Responsible for using AWS Console and AWS CLI for deploying and operating AWS services specifically VPC, IAM, Cloud Formation and Cloud Watch.
• Created new web pages for current and new programs using Sublime Text Editor and JavaScript
• Used Maven to build and deploy application JAR into JBoss WildFly server.
• Use Git Lab VCS to manage Merge Requests for tests.
• Used Bitbucket for the repository and version management through SourceTree for GIT UI.
• Used SVN &GIT as the repository contents for production and testing environments.
• Utilized Agile Scrum to manage full life-cycle development of the project.
• Designed GCP Cloud Formation templates to create custom sized VPC, subnets, NAT to ensure successful deployment of Web applications and database templates.
• Created private network on blockchain technology and tested applications on Test and main network.
• Used AWS Amazon Web Services EC2, IAM, Route 53, Cognito, Lambda to deploy our team's projects on to the public cloud.
• Worked with AWS Cloud Computing Platform to utilize Serverless Framework and Amazon RDS in building REST API's.
• DevelopedAWSservice catalog products (S3, VPC endpoints) to let developers create resources complying to organization-wide cyber security best practices such as encryption at rest, High availability of endpoints.
• Responsible for provisioning of Azure services on the cloud to build scalable production systems load balancers.
• Design highly available, cost effective and fault tolerant systems using multiple EC2 instances, Auto Scaling, Elastic Load Balancer and AMIs.
• Utilized CHEF for configuration management of hosted instances in AWS ECS.
• Used the Amazon SES API to integrate the functionality of Amazon SES directly into applications.
• Used Amazon SQS (Simple Queue Service) to manage the interactions between different micro-services.
• Developed automated monitoring and alerting system using CloudWatch, SNS andLambda functions.
• Used elastic search to query database in a Scala fashion using the powerful Akka collection framework.
• Implemented Elastic Beanstalk application ( Spring ) to read and process record from Kinesis stream.
• Involved in managing and reviewing Hadoop log files
• Designed Elasticsearch infrastructure and data pipeline to ingest and visualize performance data
• Worked on upgrades for MQ and Message Broker in windows and Unix platforms.
• Developed business ruless using Jboss drools and activeMQ and enabled the team to write business rules for some of the APIs using kie workbench.
• Developed and deployed SAM templates for developments to perform local testing of Lambda functions.
• Created Amazon Elastic cache nodes, shards and clusters in amazon ElastiCache deployment.
• Using Jenkins AWS Code Deploy plugin to deploy to AWS.
• Configured authentication mechanisms including SAML-based single sign on (SSO) and LDAP.
• Defined the system interfaces (XSD, WSDL, etc.) for SOA components and implemented two-way SSL authentication for SOAP based web services .
• Built a series of code pipelines for testing multi-threaded application using JavaScript web workers.
• Deployed Cloud Front to deliver content further allowing reduction of load on the servers.
• Performed Memcached, Redis, Apache Solr, httpd, nginx administration and troubleshooting tasks.
• Wrote deployment scripts in NgInx and PM2 to get the project up and running on dev sandbox.
• Configured and managed Nginx on Google Cloud Platform compute engines and TCP Load Balancer for fault tolerance.
• Provided continuous administrative support to development teams via slack and zoom meetings.

Environment: Chef, Recipes, Cookbooks, Puppet, Cloud formation, TravisCI, JavaScript, Python, Ruby, Ansible, terraform, Java, Spring, Spring boot, Oracle, MySql, Db2, MS SQL Server, MongoDB, Cassandra, API Gateway, Rest, Lambda, AWS Console, Sublime, Jboss Wildfly, Git Lab, bitbucket, SVN, Scrum, Agile, AWS policy groups, Subnet, private, public, AWS, EC2, S3, RDS, API Gateway, Load Balancer, auto scaling, Dynamo DB, Docker, Kubernetes, ECS, Cloud watch, SES, SQS, SNS, elastic search, kinesis, hadoop, data pipeline, message broker, activemq, elastic beanstalk, lambda, elastic cache, code deploy, SSO, SSL, Lambda, Code Pipelines,cloud formation, Cloud Front, Linux, windows, Nginx, Slack, Zoom

Confidential

AWS Cloud Engineer

Responsibilities:

• Worked on CI design and DevOps implementation projects using AWS, Chef and Jenkins to help build a custom continuous delivery system across environments and across applications.
• Working on DevOps Platform and have gained experience in specialized areas related to Chef for Cloud Automation.
• Worked with developing Chef Recipes using Terraform scripts to perform deployments onto application servers like Tomcat and Nginx.
• Converting production support scripts to chef recipes and AWS server provisioning using Chef Recipes.
• Implemented Chef client for running and deploying chef cookbooks on to the RHEL server
• Used Chef cookbooks to handle tasks such as installing and configuring packages and deploying apps
• Built server deployment on Cloud (EC2) servers with help of devops tools like Puppet.
• Utilized Cloud Formation and Puppet by creating DevOps processes for consistent and reliable deployment methodology.
• Working with automation testing and Integration and Deployment for mobile applications (such as Circle CI/CD, TravisCI, CodeShip, BrowserStack)
• Worked in TypeScript to render JavaScript (KnockoutJS) with unit and end-to-end tests.
• Developed web based application using Django framework with python concepts.
• Placed data into JSON files using Python to test Django websites.
• Used Ruby programming in coding the model level validation with emphasis in Web security.
• Implemented Restful Web Services using Ruby on Rails and enhanced CRUD Operation for the application using MVC Architecture.
• Automated the cloud deployements using Ansible and AWS Cloud Formation Templates.
• Generated Scala and java classes from the respective APIs so that they can be incorporated in the overall application.
• Developed Java API with Hibernate for Oracle Database operations on ETL data.
• Introduced Mongo DB and Mysql for document storage, Kafka for messaging Spring batch for micro services in the redesign of systems.
• Designed and developed DAO layer with Hibernate standards, to access data from Confidential DB2
• Migrated data from Oracle database from a LINUX environment to MS SQL server using ODBC driver.
• Defined web services and API contracts between web client, API gateway, and client’s middle-ware services
• Managed Amazon Web Services like EC2, RDS, EBS, ELB, Auto scaling through AWS console and API Integration with Ansible Code.
• Used a few different methods for coding / source control, including MavensMate, Sublime Text.
• Developed webservice using SOAP, UDDI, WSDL and XML, and wrote scripts to deploy them on apache tomcat.
• Used GIT as version control repository and MAVEN, Bamboo for Continuous Build Integration.
• Used Bitbucket (Mercurial) as project repository and source tree for importing projects and also for code check-in's.
• Developed and implemented web applications into Sitecore systems using SCRUM Agile methods.
• Designed Azure IaaS network architecture including VPN connectivity between regions and subnets
• Built servers using AWS, importing volumes, launching EC2, RDS, creating security groups, auto-scaling, load balancers (ELBs) in the defined virtual private connection.
• Used PGP public and private key encryption for this application.
• Managed Data backup and archiving on AWS using S3.
• Implemented AWS Cloud Services EC2, VPC, Route53, S3, Dynamo DB, ELB, RDS, Elastic Beanstalk, Auto Scaling, SES, SNS, SQS, Cloud Watch and Cloud Trail. used Dockerfile to build images and push to the dockerHub.
• Automated Compute Engine and Docker Image Builds with Jenkins and Kubernetes.
• Docker deployment with help of ECS cluster pulling images from private ECR.
• Deployed and configured Elastic Search, LogStash and Kibana (ELK) for log analytics, full text search, application monitoring in integration with AWS Lambda and Cloud Watch
• Worked with Elastic search and other Big Data Science libraries such as Pandas, Numpy and Data frames.
• Configured Kinesis Shards for optimal throughput in Kinesis Streams for Spark Streaming Applications on AWS
• Worked on analyzingHadoopcluster and differentbigdataanalytic tools including MapReduce, Hive and Spark.
• Implemented real time data pipelines using Kafka and Spark Streaming.
• Written and implemented JMS publisher and subscriber for both real-time and batch processing of update notification messages using message broker ActiveMQ services.
• Deployed the application using AWS Elastic BeanStalk and monitor EC2 servers performance using Cloud application.
• Created and configured the continuous delivery pipelines for deploying microservices and lambda functions using Jenkins CI server.
• Used various Amazon Web Services (AWS) Components like EC2 for virtual servers, S3 and Glacier for storing objects, EBS, Cloud Front, Elastic cache and DynamoDB for storing data.
• Worked on Data Modeling, Databases, API integration, reports, and code deployment.
• Implemented SAAS concept, providing the SSO features for multiple applications being hosted in the One Biz platform
• Configured SSL key stores and enabling SSL on Webservers, Weblogic and TIBCO/ISB based environments.
• Created and developed Linux and Windows server VMs for Cloud Agent, sensor, and controller deployment
• Helped in integrating Crucible into Jira and HipChat.
• Implemented font-end plugin, such as requireJS, firebase, slick, elevate Zoom, fancyBox, animate.css, Kendo UI, moment, wow, etc.

Environment: Chef, Recipes, Cookbooks, Puppet, Cloud formation, TravisCI, JavaScript, Python, Ruby, Ansible, Java, Spring, Oracle, MySql, Db2, MS SQL Server, MongoDB, Dynamo DB, API Gateway, Lambda, AWS Console, Sublime, Tomcat, Git, bitbucket, SVN, Scrum, Agile, Subnet, private, public, AWS, EC2, S3, RDS, API Gateway, Load Balancer, auto scaling, Docker, Kubernetes, ECS, Cloud watch, SES, SQS, SNS, elastic search, kinesis, hadoop, data pipeline, message broker, activemq, elastic beanstalk, lambda, elastic cache, code deploy, SSO, SSL, Lambda,cloud formation, Cloud Front, Linux, windows, Nginx, Slack, Zoom

Confidential

Sr. DevOps Developer

Responsibilities:

• Worked with DevOps Ci/CD processes and configuration management and deployment for various applications.
• Experienced in Python, Shell and Ruby scripting including but not limited to writing scripts to automate AWS Administration tasks.
• Deployed web application in AWS cloud
• Developed API for using AWS Lambda to manage the serverless architecture and run the code in AWS.
• DevOps Chef cookbook deployments of OPERATING SYSTEM and applications across multiple machines and environments.
• Implement gradle and maven pom files for DevOps and Travis CI.
• Worked with devops to deploy spring boot based executable jars into .
• Proficient in AWS services like SNS, EC2, S3, RDS, IAM, CloudFormation, Route53, and CloudFront.
• Managed and monitored CircleCI and TravisCI continuous deployment/continuous integration pipelines for running unit tests and automating code deployment to different environments
• Managed deployment automation using Chef, MCollective, Custom Puppet modules.
• Implemented several CHEF recipes in RUBY to deploy the services in cloud environment.
• Developed Chef Cookbooks to install and configure Apache Tomcat, Jenkins and deployment automation.
• Developed Puppet Modules for installation & Auto healing of various tools like Jenkins, Nolio agents, MySQL, Nexus etc.
• Developed programs in JAVA, Scala-Spark for data reformation after extraction from HDFS for analysis.
• Developed architecture design in VISO, DOJO, Data Conversion using Stored Procedures and triggers for Oracle and UDB DB2.
• Worked extensively in Agile Development process and Jira.
• Designed of scalable back-end with AWS Lambda, API Gateway, BeanStalk, DynamoDB, S3, CloudFront, EC3 and Identity Management with AWS Cognito.
• Implemented relational databases and SQL query language and Postgres, MS SQL Server, and have good knowledge in SDN network stack along with web-related protocols like HTTP, TLS and DNS.
• Configured admin console security on WebSphere and creating users with various roles to access the WebSphere admin console - users and groups in LDAP and added them as WebSphere Console Groups.
• Used IDE's like Eclipse, Netbeans and version control tools like Mercurial, SVN, and Git.
• Configured Elastic Load Balancers with EC2 Auto scaling groups.
• Successfully integrated and tested Fast QC and Dtox analysis Docker containers into Orange.
• Developed a Spark Streaming pipe line which ingests Activity data and Email Delivery Events into S3 using Kinesis.
• Implement batch jobs using Hive scripts and modeled the data flow using AWS data pipeline to load data into AWS Redshift data warehouse.
• Used Spark API over Cloudera Hadoop to perform analytics on data in Hive.
• Developed Ansible playbooks for Linux bare metal and Kubernetes based big data, machine learning, GPU, and storage technologies.
• Experienced in working with AWS (Amazon Web Services) cloud platform and its features which includes EC2, IAM, EBS CloudWatch, AWS Config and AWS S3.
• Implemented JMS features such as acknowledgement modes, receive modes and redelivery by using SQS services in the backend.
• Installed and configured Elasticsearch with logstash ship of logs of three.

Environment: Chef, Recipes, Cookbooks, Puppet, Cloud formation, TravisCI, JavaScript, Python, Ruby, Ansible, terraform, JavaOracle, MySql, Db2, MS SQL Server, Websphere, API Gateway, Lambda, SVN, Agile, AWS, EC2, S3, RDS, Load Balancer, auto scaling, DynamoDB, Docker, Kubernetes, ECS, Cloud watch, SES, SQS, SNS, elastic search, kinesis, hadoop, data pipeline, message broker, activemq, elastic beanstalk, lambda, elastic cache, code deploy, SSO, SSL, Linux,Hipchat

Confidential, New York NY

DevOps Developer

Responsibilities:

• Used Apache Couchdb (NoSQL) in AWS Linux instance in parallel to RDS MySQL to store and analyze job market info.
• Worked with best DevOps practices using AWS, Elastic Bean stalk and Docker with Kubernetes.
• Worked in infrastructure for high availability using multiple AWS availability zones.
• Created Application using Tkinter for fellow devops engineer to automate tasks
• Implemented Platform as a Service and Container as a Service solution to support Microservices, DevOps, and Agile strategies for the organization.
• Wrote Chef recipes, Jenkins pipelines, Ngnix configs for continuous integration of features from dev machines to AWS environment.
• Used Vagrant tool to test chef cookbooks, puppet modules in different virtual environments like VMware or AWS.
• Deployed Puppet, Puppet Dashboard and Puppet DB for configuration management to existing infrastructure.
• Worked closely with Devops team to set up CI/CD pipeline using Jenkins, Ansible, AWS, Maven and GIT.
• Worked in DevOps group running Jenkins in a Docker container with EC2 slaves in Amazon AWS cloud configuration.
• Experienced in automating build and deployment process using Jenkins by trigerring CloudFormation script.
• Configured CI/CD with TravisCI and an AWS Ubuntu EC2 instance running a NodeJS/Express server watching for new revisions in an S3 bucket, providing uninterrupted uptime and leveraging cloud hosting to minimize server maintenance requirements
• Wrote scripts, front end configuration and code in JavaScript, PHP, SASS and CSS.
• Wrote Perl script to compare both manual and auto settle invoices from DB2 and the invoices in Oracle Financials, and then creating a payment in Oracle through Oracle packages, which was part of migrating data from DB2 and Informix to Oracle Financials.
• Developed API Gateway using Node.js and Used MongoDB as a Database for storing information.
• Used Nginx as load balancer to pass requests to node.js server.
• Worked on Deploying a Gatling Docker Image into the Mesos Cluster with help of Docker swarm.
• Used all aspects of MYSQL/PHP Programming (object oriented PHP) in LAMP environment.
• Involved in enabling WebSphere global security using Local OS and LDAP/LTPA mechanism, SSL configuration and Ordering digital certs for Pre-prod and Prod environments.
• Using IDE's like Eclipse, Netbeans and version control tools like Mercurial, SVN and Git.
• Use Git for version control and Waterfall methodology was used.
• Deployed infrastructure on AWS utilizing services such as SNS, EC2, RDS, VPC Network and Security, Route 53, IAM, Cloud Formation, AWS OpsWorks, Elastic Beanstalk, AWS S3, and Cloud Watch Monitoring Management.
• Developed Jenkins-Kubernetes deployment for dockerized microservices in Golang and Python.
• Designed the Machine learning data pipeline for regular monitoring and performance evaluation of the deployed ML models.
• Created AWS Lambda functions for AWS config rules using Node.js.
• Developed JMS Wrapper for Amazon SQS (Simple Queuing Service) which enabled the user to interact.
• Worked on AWS tools like EC2, Elastic Beanstalk, S3, Auto Scaling, Elastic Load balance, EBS, RDS, VPC, CloudFront, CloudWatch
• Used Curator API on Elasticsearch to data back up and restoring.
• Involved in emitting processed data from Hadoop to relational databases and external file systems using Sqoop.

Environment: Chef, Recipes, Cookbooks, Puppet, Cloud formation, TravisCI, JavaScript, Python, Ruby, Java, S3, RDS, DockerKubernetes, ECS, Cloud watch, SES, SQS, SNS, data pipeline, message broker, activemq, elastic beanstalklambda, elastic cache, code deploy, SSO, SSL, Unix, Hipchat

Confidential, Chicago IL

DevOpsDeveloper

Responsibilities:

• Setup and buildAWSinfrastructure various resources, VPC, EC2, S3, IAM, EBS,Security Group, Auto Scaling, ELB
• Created tagging standards for proper identification and ownership of EC2 instances and otherAWSresources
• Worked with IAM service creating new IAM users & groups, defining roles and policies and Identity providers
• Created roles, policies, cross-account permissions for server configuration
• Used Kubernetes to deploy scale, load balance, scale and manage docker containers with multiple namespaced versions
• Implemented a Continuous Delivery pipeline with Docker, Jenkins and GitHub andAWSAMI’s
• Created Docker file to manage customized containers, exposing a container with port redirect, container volume management, docker inspect, docker commit to capture the file changes/settings into a new image and pushing the image to docker hub
• Integrated Slack Channel alarm for EKS Cluster Metrics, ex: Node MemoryPressure, CPU Usage, High Disk Usage
• Involved in periodic archiving and storage of the source code for disaster recovery
• Executed user administration and maintenance tasks including creating users and groups, reports and queries
• Releasing code to testing regions or staging areas according to the schedule published
• Installed new software releases, system upgrades and resolved software- related problems
• Configured remote backup & Automated through script
• Designed and deployed dynamically scalable, available, fault-tolerant, and reliable applications on the Cloud
• Collaborated with other cross-platform team members to build effective integrations
• Responsible for the development and maintenance of processes and associated scripts/tools for automated build, testing and deployment of the products to various developments

Environment: AWS, VPC, EC2, S3, IAM, EBS,Security Group, Auto Scaling, ELB, Docker,, Jenkins and GitHub, EKS Cluster

Confidential, New York NY

Software Developer

Responsibilities:

• Written CHEF cookbooks and CHEF Environment files for automating the deployment in the AWS Cloud infrastructure.
• Worked with TravisCI and AppVeyor to improve existing build systems
• Used JavaScript frameworks such as JQuery, Dojo, Ext JS, CSS preprocessors such as LESS or SASS.
• Developed entire frontend and backend modules using Python on Django including Tastypie Web Framework using Git.
• Development of new applications using Ruby on Rails (RoR) Using GitHub.
• Developed a Spark job in Java which indexes data into ElasticSearch from external Hive tables which are in HDFS.
• Designed and implemented intranet applications using Ruby and PostgreSql on Cloud Packages and Triggers on databases like MySQL, PostgreSQL and Oracle.
• Involved in writing optimization techniques for more accuracy of Macros in C and C++ routines and Oracle SQL, PL/SQL.
• Worked with NoSql Databases like Apache Cassandra, Mongo DB.

Environment: AWS, Jquery, LESS, SASS, HTML, LESS, JSP, JavaScript, Python,DJANGO, GIT, GITHUB, Java, HDFS, MYSQL, POSTGRESQL, C, C++, Oracle, SQL, PL/SQL, APACHE, Cassandra, MONGO DB.