Principal Software Engineer

Key Required Skills Strong experience with Java, OpenShift, Amazon Web Services (AWS), Agile Development, Angular/React, JavaScript, Spring Boot, Spring Batch, and Web Services. Position Description Design and develop software applications using Twelve-Factor App methodology from functional requirements. Develop highly innovative UI design and Web components through collaboration with experts, continually assessing new technologies to recommend better solutions for the customer and improve software developer experience and delivery efficiency. Implement Graphical User Interface (GUI) using presentation tier technologies such as AngularJS, ReactJS, Node JS, TypeScript, JavaScript, JSP, HTML, CSS, XML, AJAX, and jQuery. Perform front-end development using modern JavaScript and experience with ES13+ features like classes, arrow functions, template literals and modules. Design Web Page components compliant with Section 508 of the Rehabilitation Act (29 U.S.C. 794d). Design and develop Microservices using Spring Boot, Java, and RESTful architecture. Maintain solid understanding of DevOps practices, CI/CD pipelines, and tools such as Jenkins, Git, Bitbucket, OpenShift, and experience with cloud platforms (AWS, Azure, or Google Cloud) and containerization technologies. Develop and maintain Enterprise Java Batch application using Java Specification Request (JSR) 352 and schedule Java Batch jobs using Control-M. Develop SOAP-based Web Services using JAX-WS, Apache Axis, and WSDL. Implement Web Service Security using WS-Security with existing IBM DataPower infrastructure. Ensure interoperability with Web Services Interoperability (WS-I) standards, and optimize message transmission using Message Transmission Optimization Mechanism (MTOM) or SOAP with Attachments (SWA). Collaborate with cross‑functional teams, including business analysts, QA, and project managers, and commit to continuous learning and emerging technology updates. Develop the Data Access Layer (DAO) to interface the application with IBM DB2 9.0 and PostgreSQL databases running on z/OS mainframe and Linux operating systems, using JPA or Spring Data API for ORM. Create POCs and templates for developing Behavior Driven Development (BDD) test framework for APIs using Cucumber, Gherkin, and Java to implement integration tests. Develop unit test cases for every possible Java class with real scenarios using JUnit, Mockito, and PowerMock frameworks. Use Visio, Confluence, and IT Governance Frameworks to document the solution architecture and create UML‑based design documents. Attend all customer technical discussions/design/development meetings and provide viable technical solutions to enhance existing architecture and improve code quality/process. Impact functional strategy by developing new solutions, processes, standards, or operational plans that position the organization competitively in the marketplace. Provide guidance/support to other junior/mid‑level developers. Experience as hands‑on Technical Lead. All other duties as assigned or directed. Detailed Skills Requirements Foundation for Success (Basic Qualifications) 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, Spring Boot, Angular, and React. Extensive Design and Programming skills in Java and JEE technologies. Extensive hands‑on experience with one or more frameworks such as Angular, React, and Express/Node.js. Experience as hands‑on Technical Lead. Experience working on Agile projects and strong knowledge of Agile terminology and tools including Agility. Factors To Help You Shine (Required Skills) Selected candidate must be able to obtain and maintain a public trust clearance. Selected candidate must be willing to work on‑site in Woodlawn, MD 5 days a week. Experience designing high‑throughput and low‑latency systems, architecting scalable solutions capable of handling large volumes of concurrent requests with minimal response times. Experience developing applications using Single‑Page Application Architecture. Proficient in implementing efficient data processing pipelines, optimizing application performance through asynchronous processing, caching strategies, and load balancing. Experience coding “responsive” web pages with cross‑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, SonarQube, Fortify, and UrbanCode Deploy. Experience with Web Services Technologies (XML, JAXP, JAXB, JAX‑WS, AXIS, JERSEY, JSON, CXF, REST, SOAP) and Security (LTPA, OAuth2/JWT). Hands‑on design and development experience on Microservices and RESTful API. Experience with automated unit test (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 response time, building highly scalable software applications in cloud environments handling high volumes of data and traffic. How To Stand Out From The Crowd (Desired Skills) Proficient in designing and implementing Kafka‑based event‑driven architectures, including the use of Kafka producers, consumers, topics, partitions, and consumer groups for scalable and fault‑tolerant data streaming; familiarity with Kafka Connect, Kafka Streams, and cluster performance monitoring. Demonstrate a strong understanding of the latest trends in Artificial Intelligence (AI) and the ability to apply AI knowledge to enhance or redesign existing system architectures, identifying opportunities where AI‑driven solutions add value, improve efficiency, or enable new capabilities. 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 government IT projects. Experience with low‑code platforms like ServiceNow, Pega, MS Power Platform, etc. Education: Bachelor’s Degree in Computer Science, Mathematics, Engineering, or a related field. Masters or higher qualifications preferred. #J-18808-Ljbffr Advanced Network Consulting