Full Stack Developer

2 weeks ago


Baltimore, United States Donato Technologies, Inc Full time
Job DescriptionJob DescriptionSr. Full Stack Developer
Baltimore, MD, Full-time, On -site (Hybrid)

Description of Work:
Strong experience with Java, OpenShift/ Amazon Web Services (AWS), Agile Development, Angular/React, JavaScript,
Spring Boot, Springbatch, and Web Services
Design and develop applications from the functional requirements.
Design and develop key application components as microservices by adapting the Twelve-Factor Application
Methodology using Spring Boot, Java and RESTful architecture.
Create POCs, templates for developing Behavior Driven Development (BDD) test framework for the APIs using Cucumber,
Gherkin, and Java.
Implementation of Graphical User Interface (GUI) using the presentation tier technologies such as JSP, HTML, CSS, XML,
AJAX, JQuery and JavaScript.
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 and maintain Enterprise Java Batch application using Java Specification Request (JSR) 352 specification and
schedule java batch jobs using Control-M.
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.
Design Web Page components that are compliant with Section 508 of the Rehabilitation Act (29 U.S.C. 794d).
Create Maven build scripts to automate the build process.
Use the Continuous Integration and Continuous Delivery tools Bitbucket, Jenkins, Nexus, UCD to version control, build,
store artifact, and deploy the software projects.
Use MS Project, Visio and IT Governance Frameworks to document the solution architecture & develop UML based
design documents.
Develop unit test cases for every possible Java class with real scenarios using Junit, Mockito and Power Mock frameworks
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.
Attend all customer technical discussions/design/development meetings and provide technical inputs to further
enhance the code quality/process.
Front end development using modern JavaScript and experience with ES6+ features, such as classes, arrow functions,
template literals and modules.
Provide guidance/support to other junior/mid-level developers.
Impact functional strategy by developing new solutions, processes, standards, or operational plans that position Leidos
competitively in the marketplace.
Basic Qualifications: Minimum knowledge, skills, abilities needed.
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.
Experience in developing the applications using Single-Page 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, JWT, OAUTH2).
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.
Knowledge of security vulnerabilities in web applications and addressing them.
Strong communication and documentation skills.
Must be able to obtain and maintain a US Public Trust clearance
Preferred Qualifications: Candidates with these skills will be given preferential consideration.
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
All other duties as assigned or directed
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