SUMMARY

• Around 10+ years of experience in Java/J2EE wif full Software Development Life Cycle (Software analysis, design, development, architecture, deployment, testing, and maintenance).
• Expertise in developing and implementing Web applications using Java/J2EE Technologies including Core Java, JDBC, Hibernate, Spring, JSP, Servlets, Java Beans and EJB.
• Proficient in using RDBMS concepts and worked wif Oracle and Oracle ATG.
• Strong front - end UI development skills using scripting languages HTML5, DHTML, CSS3, JSP, JavaScript, Typescript, React JS, Angular, jQuery and Node.js as a platform for web applications.
• Worked on several python packages like numpy, scipy, pytables etc.
• Worked on Web Application Development wif Framework like Struts and Spring MVC.
• Expertise in application development frameworks like Vert.x, Struts, Spring, and Hibernate.
• Expertise in server-based Node.js development and TD to build and execute API functional and performance test plans.
• Expertise using Node.js including Express.js, IBM LoopBack. Experience wif variety of Node.js libraries and frameworks.
• Worked extensively on Angular 2/ Typescript SPA domains.
• Good experience in Web 2.0RIA technologies like Extjs, jQuery, JSON, AJAX.
• Designed and developed stored procedures, queries and views necessary to support SSRS reports.
• Experience in Adobe Experience Manager, Adobe LiveCycle Suite for cross browser platforms using Adobe LiveCycle Designer (AEM Designer), Acrobat, InDesign development and testing.
• Worked wif various frameworks in Spring framework, extensively used Spring DI, Spring IO Spring AOP, Spring JTA, Spring JDBC templates, Spring MVC, Dependency Injection, Spring Batch, Annotations, Thyme leaf and XML based Configurations.
• Worked wif Behavior Driven Development (BDD) process and Test Driven Development (TDD)
• Extensively used Node.js tools like Gulp, Grunt, Web pack and developed CLI applications. Used popular Node.js frameworks like Express and Restify to mock a RESTful API.
• Implement modules into Node.js to integrate wif designs and requirements.
• Use of tools such as PMD, findbugs, Jenkins, Sonar to ensure the continuous integration in the project.
• Experience in using Webpack as module bundler and performing the vast majority of the tasks.
• Good experience of implementing reactive programming using RxJava to manage asynchronous tasks and events
• Strong experience in using Spring MVC and Spring Boot to implement and design multi-tier web-based applications.
• Proficient in creating GUIs using Struts, SPRING MVC, SPRING web flow Frameworks.
• Responsible for writing the Design Specifications for the generic and application specific web services in Groovy n Grails.
• Designed and developed a decision tree application using Neo4J graph database to model the nodes and relationships for each decision.
• Experience on configuring tasks wif Gulp/Grunt to automate and improve the application development work flow.
• Proficient in using Unit.js testing framework along wif Jasmine, Karma, Protractor, Mocha test runners
• Created various simple and complex reports, mainly using business objects universes as data providers.
• Used Hibernate, MyBatis, object/relational-mapping (ORM) solution, technique of mapping data representation from MVC model to Oracle Relational data model wif SQL-based schema.
• Experienced in AWS cloud wif features EC2, VPC, ELB, Auto-Scaling, Security groups, Route53, IAM, EBS, AMI, RDS, S3, SNS, SQS, CloudFormation, CloudFront and Direct Connect.
• Experienced in design and development of various web and enterprise applications using J2EE technologies like JDBC, JNDI, EJB, RMI, Servlets, JSP, JMS, JSF and XML Technologies like DTD, XML Schema, SAX, DOM, JAXP, JAXB, JAX-RPC, JAX-WS, XSL and XSLT.
• Hands-on experience in using message brokers such as ActiveMQ and RabbitMQ
• Extensive hands on work experience using Microservices wif Spring Boot, Restful and SOAP, SOAP UI Web services and worked on Core Java
• Hands on experience in Quartz Scheduler frame work
• Experience in implementing Service Oriented Architectures (SOA) using XML based Web Services (REST/SOAP/UDDI/WSDL/GraphQL) and Power BI exposure.
• Used Spring Web Flux and migrated applications from servlet to reactive API
• Having hands on experience on WebLogic, WebSphere, Tomcat and JBOSS Server for deploying web as well as J2EE enterprise applications. Also worked wif Elasticsearch search engine and used logstash as a datapipeline for Elasticsearch
• Strong experience in All Hadoop and Spark ecosystems include Hive, Pig, Sqoop, Flume, Kafka, Cassandra, SparkSQL, Spark Streaming, SparkR and Flink.
• Created clusters in Google Cloud and manage the clusters using Kubernetes. Using Jenkins to deploy code to Google cloud, create docker images and pushing them to container registry of Google Cloud
• Worked on Hibernate, object/relational-mapping (ORM) solution, technique of mapping data representation from MVC model to Oracle Relational data model wif an Oracle schema.
• Proficient in using design patterns like Singleton, Data Access objects and Factory pattern and Smile Hybrid Provider pattern.
• Good understanding of Object-Oriented Methodology, UML, and Design Patterns.
• Worked on front-end/presentation tier development using Struts Framework that includes JavaScript, Angular, Ajax and CSS.
• Experience in writing SQL, PL/SQL Procedures / Functions, Triggers and Packages on Database (RDBMS) packages like Oracle, MySQL.
• Integrated e-commerce platforms and mid-market ERP systems using Vertex Cloud.
• Recognize the need for a specific relational design - OLTP, OLAP, Data Warehouse - from a set of requirements and/or from a Logical Data Model.
• Suggested modifications in queries in Actimize Designs to support impact of user interface views.
• Experience in managing life cycle of MongoDB including sizing, automation, monitoring, and tuning.
• Worked on previous data format standards from HL7, like HL7 version 2.x and HL7 version 3.x while working on Smile CDR server and converted different formats like CSV to FHIR.
• Revised and documented all the updates and specifications related to HL7 feed for integration engine.
• Transformed and stored HL7 messages through integration engine.
• Used Kubernetes to orchestrate the deployment, scaling and management of Docker Containers
• Technical experience in the areas of Object-Oriented Analysis (OOA) Object Oriented and Design (OOD) using UML, Software Life Cycle Management and Development of Distributed applications.
• Good experience wif unit testing using JUnit and Log4j for effective logging.
• Worked on implementation of the version control software CVS, GIT and SVN.
• Experienced wif JDBC API to call SQL Queries and Stored Procedures in the Database.
• Extensive noledge in Agile and Waterfall Methodologies.

TECHNICAL SKILLS

Frameworks/ORM: Spring, Hibernate, Struts, Node.JS.

Web service Frameworks: Spring, Hibernate, Struts, Spring MVC, Spring IOC, Spring Boot, Spring AOP, Spring Web Flow, JSF, Log 4J, Junit, Thyme leaf, free marker, Velocity

Web Technologies/J2EE: JSP, EJB, jQuery, JSTL, AJAX, XML, JavaScript, AngularJS, EXT JS, HTML5, CSS3, JSON, XSLT, Node JS., Express.js, .NET (3.0,2.1)

IDE’s: Eclipse, My Eclipse, IntelliJ IDEA, Spring Tool Suite (STS).

Databases: Oracle 12c/11g/10g, MySQL, SQL Server Web ServicesRESTful web service, SOAP, WSDL, JAX-RS, JAX-WS JMS, JAXB. Version control/Build ToolsGit, SVN, CVS, Clear Case, Jenkins, Maven, Ant. Testing ToolsJUnit, TestNG, Selenium, Mockito. Web/Application ServersWebLogic, Tomcat, JBOSS, Web sphere

Operating Systems: Windows, Unix, Linux Design PatternsSingleton, Abstract Factory, Business delegate, Service locator, Model View Controller, Session facade, DAO, Composite, Adapter, Proxy.

Languages: Java, J2EE, Servlets, JSP, JDBC, JSON, Ajax, JDBC, JavaScript, HTML5, CSS 3, Bootstrap, JSF, XML, XSD, XSLT, XPATH, SQL, PL/SQL, WSDL, JUnit, Regular Expressions.

PROFESSIONAL EXPERIENCE

Confidential, New York, NY

Software Engineer

Responsibilities:

• Worked on API Gateway which is built upon NGINX reverse proxy server and Lua-nginx module which is a core component of OpenResty.
• Load balance, wif several algorithms and advanced features like slow-start and session persistence, HTTP traffic between web or application server groups can be analyzed.
• Implemented security features like SSL termination, JWT autantication and securing TCP traffic to upstream servers on top of Oauth 2.0 (API Key autantication).
• Improved the performance of a REST call by fine-tuning the time taken between a TCP connection and HTTP request by 100%.
• Involved in handling multiple migration issues of API teams from XML Gateway to API Gateway.
• Worked on performance improvement of multiple inbound and outbound servers that run traffic through the API Gateway using CDN.
• Used Docker for running NGINX for local development. Worked on Jenkins for deployment and Splunk to check the logs of traffic flow.
• Used Chef to install NGINX from packages and set up some default configuration in our own cookbooks

Confidential, Mclean, VA

Full Stack Java Developer

Responsibilities:

• Involved in phases of SDLC such as analysis, design, implementation and testing through Agile Methodology.
• Developed application based on Micro Services Oriented Architecture as it is fine-grained and possess lightweight protocols and developed dynamic single page applications using Angular framework wif HTML5, CSS3, and Bootstrap.
• Load balancing among servers executed by using Spring Ribbon & developed Microservices for distributing various tasks of the system into different services for enhancing cohesion and for loose coupling.
• Used several Spring Features Spring, Spring DAO, Spring Boot, Spring Batch, Spring Security, Spring Integration, Spring IOC to implement business layer and navigation part of application.
• Implementing OAuth token-based autantication/authorization using Spring Security for securing API’s.
• Closely worked wif Kafka Admin team to set up Kafka cluster setup on the QA and Production environments.
• Developed several REST web services which produces both XML and JSON to perform tasks, leveraged by both Web Services as well other enterprise wide Web Services.
• Integration wif Spring Security and Spring Boot in Web application.
• Performed UNIX scripting, oversaw Linux servers and managed Oracle 10g databases and generated stored procedures via PL/SQL.
• Set up and managed Docker containers, running Go and PHP applications, for deployment into Kubernetes Pods
• Worked on monitoring, logging and cost management tools that integrate wif AWS
• Extensive experience wif core java technologies in Multi-Threading, Synchronization & Exception Handling for gathering information from various servers in parallel.
• Built Confidential tool using Angular, RXJS, and NGRX platform. Developed components as an independent module for reusability across the application.
• Using Rest APIs, spring boot and pivotal cloud foundry developed Spring Restful architecture.
• Design distributed systems and troubleshoot in upstream Kubernetes
• Worked wif modules like MongoDB (NoSQL) and mongoose for database persistence using Node.js to interact wif MongoDB.
• Was involved and responsible for managing more than 75 NoSQL clusters.
• Created POC for SSl authorization using vert.x Framework
• Participated in designing and development of applications utilizing Actimize Intelligence Modeler
• Used Spring Kafka API calls to process the messages smoothly on Kafka Cluster setup.
• In migration from EJB to spring heavily used Spring Inheritance, Auto-wiring, Core Container, Security, ORM modules as part of, Spring Quartz for scheduling tasks to generate reports and emails to clients.
• Built the Application using design patterns-Singleton, Factory, DAO, DTO prototype & Composite View.
• Developed Type script, angular CLI compatible multiple Angular components.
• Apart from JMS as messaging service worked wif employment of Apache Kafka and Zookeeper.
• Used Hibernate, object/relational-mapping (ORM) solution, technique of mapping data representation from MVC model to Oracle Relational data model wif SQL-based schema.
• Implemented the associated business modules integration using spring and Hibernate data map.
• Used Maven as build and dependency management tool for creating EAR, WAR and JAR file to be deployed in application servers and integrated wif Subversion(SVN), BitBucket, Jenkins, JMeter and Jenkins Jobs.
• Configured AWS Multi Factor Autantication in IAM to implement 2 step autantication of user's access using Google Autanticator and AWS Virtual MFA.
• Implemented NGRX store to maintain the state of the application. NGRX store was used to store results after angular injector observable retrieved the data from backend. Added logic to dispatch the action to NGRX store, this was done to update the store and to update components subscribed to that particular store.
• Experience in AWS cloud service like Compute, Network, Storage and Identity & access management.
• Used spring and Hibernate for implementing IOC and ORM for back end tiers.
• Worked on design of custom Docker container images, tagging, pushing images, integration of Spring boot.
• Used LOG4J for logging messages and errors and APACHE MAVEN as software build tool.
• Used GIT for Source Control and Version Management and Drools Engine for writing Business Validation rules.

Environment: Spring core, Microservices, Spring Boot, Hibernate, Angular, HTML5, CSS3, jQuery, JSON, Mongo DB, Oracle 12c, IntelliJ IDEA, JUNIT, JAVA 8, Restful web services, SVN, BitBucket, Jenkins, JMeter Scala, Spring Cloud, Spring Security, OAuth 2.0, Apache Kafka, Selenium, Jenkins.

Confidential, Dover, NH

Java/J2EE Developer

Responsibilities:

• Involved in Analysis, Design and Implementation translation of Business User requirements.
• Designed, Developed and analyzed the front-end and back-end using JSP, Servlets and Spring
• Implemented the project as a multi-tier application using Spring MVC, Spring boot, Microservices & used core Spring concepts like AOP, IOC, ORM
• Involved in building a high efficiency Dynamic single and multiple Web Application Using HTML, HTML5, Angular JS, JQuery and CSS3.
• Support and enhance SDLC cycle by using Docker containers delivered to OpenShift Container Platform.
• Golang and Java were used as a backend REST service while AngularJS was used for the user interface
• Implemented both REST web services.
• Developing Equity trading system in Core Java
• Implemented various complex PL/SQL queries and Analyzed the SQL scripts.
• Experience in developing Cloud computing microservices using Spring Boot, Spring Cloud and Netflix based Eureka Discovery, Eureka Server, Zuul, Ribbon, Hystrix and Feign.
• Developed various JUnit test cases for Unit Testing.
• Created PDF reports in Golang using XML and database to send all userbase (around 3million end users) monthly and on demand reports.
• Implemented various java design patterns like Front Controller, Singleton, façade, Data Access objects, Factory pattern, etc.
• Implemented Hibernate for data persistence. DAO and Hibernate transactions was implemented using Hibernate framework.
• Implemented various complex PL/SQL queries and Analyzed the SQL scripts
• Developed trait handlers (services) for the devices to interact and update their different states using gRPC.
• Developed various JUnit test cases for Unit Testing.
• Implemented Hibernate for data persistence. DAO and Hibernate transactions was implemented using Hibernate framework.
• Implemented the application using the concrete principals laid down by several design pattern such as MVN, Business Delegate, Data Access Object, and Singleton.
• Extensive experience in Hibernate ORM mapping utilities and used query, criteria services.
• Worked wif Express.js for development of RESTful web services and middleware configurations.
• Created CI/CD for deploying in Jenkins and Used Jenkins to integrate wif other tools.
• Prepare Java/J2EE development structure for Maven.
• Implemented the DAO pattern to connect to the database and retrieve data.
• Core development experience for Groovy Grails restful web services.
• Performed functional testing using SOAP UI and created mock services for testing on developer sandbox.

Environment: Java, HTML, CSS, WebGL and React, JavaScript, Spring, Hibernate, Spring Boot, PostgreSQL, XML, RESTful & SOAP webservices, Eclipse, Unix, GitHub, Jenkins, Junit, TestNG, Mockito.

Confidential, Milwaukee, WI

Java Developer

Responsibilities:

• Used the various services using Microservices architecture in which the services working Independently.
• Involved in SDLC Requirements gathering, Analysis, Design, Development and testing of application using Agile methodology (SCRUM) and Design Driven Development.
• Designed and developed various Web forms using HTML, CSS, Bootstrap and JavaScript, React.JS
• Created Responsive Layouts for multiple devices and platforms using foundation framework.
• All the functionality is implemented using Spring IO, Thyme leaf and Hibernate ORM. Implemented JavaEE components using Spring MVC, Spring IOC, Spring transactions and Spring security modules.
• Designed RESTful web services wif JSON representation for handling AJAX requests Used Advanced Rest Client plug-in to run the rest API's on localhost Tomcat Server for Unit testing
• Implemented Spring Validators, persistence layer, and service layer components using Spring/Hibernate API and Spring/Hibernate annotations. Extensively used Hibernate QL.
• Implemented PL/SQL queries and used oracle stored procedures.
• Developed reusable ExtJS components Such as Viewport, Panel, and Grids etc. Developed Pagination for Search Results using Ext Paging Store.
• New library development wif micro services architecture using Rest APIs, spring boot and pivotal cloud foundry.
• Implemented client-side validations using JavaScript
• Configured WebLogic resources like JDBC providers, JDBC data sources, connection pooling, and Java Mail sessions.
• Used IntelliJ, Eclipse for designing, coding and developing applications.
• Design and implementation of web applications in Javaand HTML/JavaScript using Eclipse, JPA frameworks and GIT maven source code environments.
• Designed and implemented application using JSP, Spring MVC, JNDI, Spring IOC.
• Configured Maven dependencies for application building processes
• Used Angular directives to extend HTML to create the foundation for rich and complex web application.
• Experience in MongoDB installation, patching, troubleshooting, performance, tracking/tuning, back-up and recovery.
• Developed Web services to allow communication between applications through REST and GraphQL over HTTP using Metro.
• Used jQuery event handling in UI pages to display list boxes and to handle validations.
• Created documentation for all the components which is included in React-Bootstrap page.
• Setup Alerting and monitoring using Stackdriver in GCP
• Developed client request validations and processing using JavaScript
• Migrating existing application into micro services architecture using Rest APIs, spring.
• Used Log4j to capture the log that includes runtime exception and for logging info and are helpful in debugging.

Environment: J2EE, JMS, Spring MVC, IAM, Hibernate, Rest Web services, WebLogic server, Spring Core, Angular, Agile, SCRUM Methodology, JMeter, HTML, CSS, JavaScript, jQuery, AJAX, JSP, Servlet, XML, UML, Oracle10g, Log4j, GraphQL.

Confidential

Java Developer

Responsibilities:

• Using Agile methodologies to plan work for every iteration and used continuous integration tool to make the build passes before deploying the code to other environments.
• Used Spring MVC and Dependency Injection for handling presentation and business logic.
• To maintain loose coupling between layers published the business layer as services and injected necessary dependent components using Spring IOC and published cross cutting concerns like Logging, User Interface exceptions, Transactions using Spring AOP.
• Integrated Spring DAO for data access using Hibernate.
• Implemented persistence framework using Hibernate & Handled Transaction Management using the provided data source.
• Used Spring Security for Autantication and Authorization of the application.
• Extensively used JSON to parse the data from server side to satisfy the business requirement.
• Responsible for designing Hibernate mapping files based on business logic and Object relationships.
• Integrated Spring and Hibernate together and worked on developing backend components and services using Hibernate and spring.
• Established Database Connectivity using JDBC, Hibernate O/R mapping wif Spring ORM for Oracle.
• Worked on Hibernate for mapping the java objects to relational database and SQL queries to fetch the data, insert and update the data from the database.
• Developed Roadmap for large scale rollout of enterprise wide IP - Based systems such as Avaya Aura Portfolio
• Built and implemented Avaya infrastructure DR-disaster recovery plan for Avaya call center and SIP technology.
• Used Hibernate in Data Access Layer to access and update information in the database.
• Extensively used HQL and SQL for querying databases.
• Consumed Web Services to interact wif other external interfaces to exchange the data in different forms by using Restful service.
• Implemented SOA architecture wif Web Services using SOAP, WSDL, UDDI and XML using Apache CXF framework and worked on parsing the XML files using DOM/SAX parsers.
• Created tables, triggers, PL/SQL Stored Procedures, SQL queries, Joins, i2ntegrity constraints and views for IBM DB2.
• Used Multithreading to improve overall performance using Singleton pattern in Hibernate Utility class.
• Implemented Restful and SOAP based Web Services and used Soap UI for testing.
• Used Docker to collaborate code, run and deliver more securely for both Linux, Windows server.
• Used Spring JMS module for lookup for the queues and MDBs for the listeners.
• Involved in Unit Testing of various modules by generating the Test Cases.
• Performed deployment of applications on Web Logic.
• Involved in day to day handling of JIRA issues (production issues at time) that involved data inconsistencies that required to be solved in very less time.
• Used Jenkins as build management tool for continuous integration process and used GIT as Version Control.
• Involved in Bug fixing of various modules that were raised by the testing teams in the application during the Integration testing phase.
• Participated in Code Reviews of other modules, documents and test cases.
• Written LINUX shell scripts to identify user login information.

Environment: Java, J2EE, HTML, CSS, Java Script, JSP, JSTL, Spring (IOC, MVC, DAO, Security), Hibernate, IBM DB2, XML, XSD, SOAP UI, Restful, SOAP, JAX-RS, JAX-WS, WSDL, JMS, JUnit, Web Logic, Jenkins, Gradle, GIT, JIRA, Agile Methodology, Windows, Linux.

Confidential

Java Developer

Responsibilities:

• Designed the application using the J2EE design patterns such as Session Façade, Business Delegate, Service Locator, Value Object, Value List Handler, and Singleton.
• Created user cases, class diagrams and sequence diagrams as a part of requirements gathering.
• Designed JSPs, JSTL and Servlets to build views in web tier.
• Involved in debugging the product using JIRA Bug Tracking
• Deployed the application on to WebSphere application server.
• Designed, developed, and maintained data layer using Hibernate.
• Implemented design patterns such as Singleton, Business Delegate, Service Locator and Data Access Objects.
• Used Oracle ATG web commerce to implement a component development model based on JavaBeans and JSP.
• Worked on .NET security features such as Form-Based Autantication and Role-Based Authorization
• Developed Use case diagrams, Object diagrams, Class diagrams, and Sequence diagrams using UML.
• Configuring windows APIGEE servers using FTP and HTTP protocols.
• Configured Staging and Testing and Production environment for APIGEE Edge and APIGEE cloud-based sites.
• Integrated inpix e-commerce platform and mid-market ERP systems using Vertex Cloud.
• Developed presentation tier as HTML, JSPs using Struts Framework
• Involved in database design; created PL/SQL stored procedures, Functions and Triggers.
• Developed automation test cases using Java and selenium on Eclipse for web 2.0 Ajax application.
• Developed and maintained Ant Scripts for build purposes on various environments.
• Involved in debugging using JUnit and Log4J and version control using CVS.
• Developed application using Eclipse and deployed using Apache Tomcat on Windows 2000.
• Documented all the source code.

Environment: Java/J2EE, AJAX, HTML, JavaScript, JSP, Servlets, Java, XML, Thymeleaf, Web services, Hibernate, JDBC, SQL Server, JUnit, CVS, Log4j, Apache Tomcat, MySQL, Windows XP.

Confidential

Java/Golang Trainee

Responsibilities:

• Distributed application developer for enterprise security master application (SMDB) which provided indicative, pricing and corporate actions data to internal and external customers such as JP Morgan, ING and others.
• Introduced to Golang while working wifin a project.
• Interacted wif the Node.js community online and in person to expand noledge and build recognition of StrongLoop and IBM brand.
• Developed new RESTful API services that work as a middleware between our application and third - party APIs that we will used using Golang.
• Designed, implemented and maintained a multithreaded server that received and processed acnoledgement messages from downstream applications regarding event data pushes using C++, STL, multithreading, shell scripting and UNIX. Wrapper developed in Python for instantiating multi-threaded application and running wif other applications
• Participated in the development of a multithreaded publish/subscribe process which consisted of several subscription and push servers using C++, STL, multithreading, shell scripting and UNIX.
• Implemented additional rules and logic to provide indicative and corporate actions data to new subscribers by extracting all the required information from data base, generating and pushing messages using C++ and Rogue Wave.
• Implemented a SOAP webservice client program which was used extensively to process and stored in the data base corporate actions data from various vendor feeds using C++ and Rogue Wave.
• Designed and developed a multithreaded process that generated breaks on income events and notified the users when underlying indicative data changed using C++, STL and multithreading.
• Modified existing multithreaded server infrastructure to push additional indicative information to downstream subscribers. Implemented additional validation logic for a rule engine server that checked for logical inconsistencies in indicative data and reported them in a user workflow using C++, STL and multithreading.
• Used ASP.NET 3.0 AJAX server Control and toolkit to asynchronously retrieve data from server for a better performance and an increase in interactive animation on web pages.
• Developed and tested a client that handled the parsing of the municipal bonds feed file and created business objects which were streamed to various servers for data analysis using C++ and STL.
• Created an automated generic archiving utility written in raw DB2 CLI which was used to archive rows from different tables depending on the flag.

Environment: C, C++, STL, Unix, AIX, Linux, g++, gcc, Python, pdb, Shell Scripting, IBM DB2, Oracle, SVN, event handlers, Observer Pattern, multithreading, thread pools, IPC, gpg encryption, gdb, dbx.