Freelance Junior Java Developer Jobs in Ashburn, VA

Job Summary:
TechWish is seeking a Senior Java Developer to design and develop software applications using Twelve-Factor App methodology. The role involves developing innovative UI designs, implementing microservices, and maintaining enterprise applications, while collaborating with other experts in the field.
Responsibilities:
• Design and develop software applications using Twelve-Factor App methodology from functional requirements.
• Develop highly innovative UI design, Web components, achieved through collaboration and dialogue with other experts in the field.
• Implementation of Graphical User Interface (GUI) using the presentation tier technologies such as JSP, HTML, CSS, XML, AJAX, jQuery, AngularJS, ReactJS, Node JS and JavaScript.
• Front end development using modern JavaScript and experience with ES13+ features, such as classes, arrow functions, template literals and modules.
• Design Web Page components that are compliant with Section 508 of the Rehabilitation Act (29 U.S.C. 794d).
• Design and develop Microservices using Spring Boot, Java and RESTful architecture.
• Use the Continuous Integration and Continuous Delivery tools Bitbucket, Maven, Jenkins, Nexus, UCD to version control, build, store artifact, and deploy the software projects to modern cloud environments like OpenShift, AWS.
• Develop and maintain Enterprise Java Batch application using Java Specification Request (JSR) 352 specification and schedule java batch jobs using Control-M.
• Develop Simple Object Access Protocol (SOAP) based Web Services using Web Service Technologies and Security such as JAX-WS Web Services, WS-Security, IBM Data Power, Web Services-Interoperability (WS-I), Message Transmission Optimization Mechanism (MTOM), or SOAP with Attachments (SWA), Apache Axis and Web Service Definition Language (WSDL).
• Develop Data Access Layer (DAO) to interface the application with IBM DB2 9.0 database running on z/OS 64-bit mainframe operating systems for IBM mainframes that queries and retrieves data using SQL, JNDI, JDBC template and through Object Relational Mapping (ORM) tool Hibernate.
• Create POCs, templates for developing Behavior Driven Development (BDD) test framework for the APIs using Cucumber, Gherkin, and Java.
• Develop unit test cases for every possible Java class with real scenarios using Junit, Mockito and Power Mock frameworks.
• Use MS Project, Visio and IT Governance Frameworks to document the solution architecture & develop UML based design documents.
• Attend all customer technical discussions/design/development meetings and provide technical inputs to further enhance the code quality/process.
• Impact functional strategy by developing new solutions, processes, standards, or operational plans that position Client competitively in the marketplace.
• Provide guidance/support to other junior/mid-level developers.
• All other duties as assigned or directed.
Qualifications:
Required:
• Bachelor's Degree in Computer Science, Mathematics, Engineering or a related field.
• Masters or Doctorate degree may substitute for required experience
• 10+ years of experience with Java, Springboot, Angular, React.
• Extensive Design and Programming skills in Java and JEE technologies.
• Extensive hands-on experience with one or more frameworks such as AngularJS, jQuery, ReactJS, and Express/Node.js
• Experience working on Agile projects and strong knowledge of Agile terminology and tools including VersionOne.
• Must be able to obtain and maintain a Public Trust. Contract requirement.
• Strong experience with Java, OpenShift/ Amazon Web Services (AWS), Agile Development, Angular/React, JavaScript, Spring Boot, Springbatch, and Web Services.
Preferred:
• Experience in developing the applications using Single-Page Application Architecture.
• Experience in coding 'responsive' web pages with an understanding of the cross-browser limitations and browser compliance standards.
• Experience designing and deploying cloud-native applications onto AWS with PostgreSQL.
• Deep Knowledge of PaaS offerings such as Red Hat OpenShift and Docker.
• Experience with modern software development tools for Continuous Integration including Jenkins, Git/BitBucket, Jira, Nexus, Maven, Jenkins, SonarQube, Fortify, and UrbanCode Deploy.
• Experience with Web Services Technologies (XML, JAXP, JAXB, JAX-WS, AXIS, JERSEY, JSON, CXF, REST and SOAP) and Security (LTPA, OAUTH2/JWT).
• Hands-on Design and development experience on Microservices and RESTful API.
• Experience with Automated unit test (i.e. JUnit, Mocking frameworks), Test Driven Development (TDD), and Behavior-driven development (BDD) (Cucumber).
• Experience with JEE technologies including Struts, Spring Framework (IoC, MVC, Transactions, Security, and Batch), Spring Boot, Spring JDBC, JPA, Hibernate, SOAP/RESTful, XML, DB2, Tomcat, WebSphere.
• Experience with static code analyzers like SonarQube and addressing SonarQube recommended technical debts such as bugs, vulnerabilities, hotspots in the code.
• Knowledge of security vulnerabilities in web applications and addressing them.
• Experience with performance tuning software applications for effective CPU, Memory utilization, Quick turnaround response time, building highly scalable software applications in Cloud Environment handling higher volume of data and traffic.
• Experience with the implementation of Section 508 standards for Web Applications.
• Exposure to writing Technical White Papers and systems design documents.
• Prior experience with federal or state governments IT projects.
• Experience with low code platforms like ServiceNow, Pega, MS Power Platform etc.
• Strong communication and documentation skills.
Company:
TechWish is a global technology services company specializing in Cloud, Data Engineering, AI, and Enterprise Platforms. Founded in 1999, the company is headquartered in Sterling, USA, with a team of 501-1000 employees. The company is currently Late Stage.