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Centurion

Full Stack Engineer

On site

Woodlawn, United states

$ 155,000 /year

Senior

Freelance

22-01-2026

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Skills

Java JavaScript HTML CSS Jira SQL PostgreSQL Docker Version Control Jenkins Test Architecture Solution Architecture Application Architecture Operating Systems Programming apache git jquery angular react node.js AWS ReactJs Software Development Agile Springboot Junit JS Spring AJAX Hibernate Spring Boot Maven AngularJS OpenShift Express Node Js Microservices Mathematics

Job Specifications

Centurion Consulting is looking for a Senior Full Stack Developer for an on site role in Woodlawn.

Key Required Skills:

Strong experience with Java, OpenShift/ Amazon Web Services (AWS), Agile Development, Angular/React, JavaScript, Spring Boot, Springbatch, and Web Services.
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.
The candidate will continually assess advancements in technologies to gauge and recommend better solutions for the customer to improve the software developer experience and efficient delivery of software.
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 Leidos competitively in the marketplace.
Provide guidance/support to other junior/mid-level developers.
All other duties as assigned or directed.
Required Skills:
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.**
Selected candidate must be willing to work on-site in Woodlawn, MD 5 days a week.
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.
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About the Company

Centurion, a Woman-Owned Small Business headquartered in Herndon, VA, conveniently located near Washington D.C., is a national professional services firm working with the public and private sector by delivering relevant solutions for our client’s complex business and technology challenges. Our leadership team has over 40 years of combined and demonstrated experience in the IT staffing, federal contracting, and professional services industries. This experience includes partnering with over 10,000 consultants and hundreds of c... Know more