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Constellation Technologies, Inc

Open since May 2026

Software Engineer - multiple levels - CI polygraphConstellation Technologies · Annapolis Junction

Software Engineer - multiple levels - CI polygraph

Annapolis JunctionOn-siteFull-time

AI Summary

Develops web applications and user interfaces using Java, Python, and embedded C/C++ for federal contracts, requiring TS/SCI clearance and a polygraph.

About this role

web application and user interface (UI) development; Java, Python, embedded C/C++, Java cryptographic framework, XML, web UI (i.e., Angular, JavaScript, CSS, HTML, Java Frameworks, J2E, Python, C++, Oracle, MongoDB, SQL

Due to federal contract requirements, United States citizenship and an active TS/SCI security clearance and polygraph are required for the position.

Required:

  • Must be a US Citizen.
  • Must have TS/SCI clearance w/ active polygraph (CI or FS)
  • At least four (04) years of direct/relevant experience
  • Bachelor’s degree in engineering (i.e. Computer, Electrical, Mechanical, Aerospace, etc.) or related discipline from an accredited college or university is required.
  • Five (05) years of additional relevant experience on projects with similar processes may be substituted for a bachelor’s degree.
  • Must have demonstrated in-depth experience with Java.
  • Must have experience or familiarity with multiple Java frameworks: Spring to include Boot and Data, Java Enterprise Edition (JEE) (i.e., JPA, EJB, JTA, Servlet), Jackson, Jersey, Swing, JavaFX.
  • Must have experience or familiarity with multiple of the following languages such as JavaScript, Python, C/C++, Groovy, Structured Query Language (SQL).
  • Must have experience with development IDEs (Integrated Development Environments) such as Eclipse, Visual Studio Code, Visual Studio, Rhapsody, WebStorm.
  • Must have experience with databases such as Oracle, PostgreSQL, MongoDB, SQL Server.
  • Must have experience with Web Application User Interface Development, knowledge of databases and structures, Spring Framework, and/or experience working with AngularJS, JSON, HTML, XML, XSLT.
  • Must have experience with software source control and configuration management tools.
  • Must have experience with technologies underlying cryptographic systems (symmetric and asymmetric cryptography, ASN.1 encoding, XML canonicalization, digital signatures).
  • Must have experience developing on Windows, and/or Linux operating systems.
  • Must have documented professional experience with web services.
  • Must have a strong understanding of sound software development principles and practices.
  • Must be able to plan and prioritize personal tasking and be able to communicate effectively verbally and in writing.
  • Must be an independent thinker, capable of performing high quality work, both independently and with a team in a fast-moving environment.

    • These Qualifications Would be Nice to Have:

  • Experience with the following: Java Enterprise Edition (JEE) (i.e., EJB, JPA, JTA, JAX-B, JAX-RS, JAX-WS), SQL, application servers (Tomcat, WebLogic, JBoss), Spring framework, scripting.
  • Experience or familiarity with multiple of the following technologies: XML/XSD/SOAP/WSDL/XSLT, REST, JSON, YAML, Containers (Docker, Podman, Kubernetes, OpenShift).
  • Experience with Javascript frameworks: AngularJS, Bootstrap, JQuery.
  • Experience with Testing and Mocking frameworks: JUnit, Jupiter, Mockito, Jasmine, Karma, Cucumber, Unified Functional Tester (UFT), Selenium, FITNesse.
  • Experience with build tools: Maven, CMake, RPM, Jenkins, Nexus.
  • Experience with high level requirements management including requirements decomposition, secure systems engineering and development, trade-off analysis, interface control, testing and continuous integration.
  • Experience in software development on Agile teams using Agile Developer practices such as Pair Programming, Test Driven Development (TDD), Refactoring, and Acceptance Test Driven Development (ATDD).
  • Experience with Behavior Driven Development (BDD).
  • Secure Software development (i.e., Layer 7 Policy).
  • Experience with Scrum, Scaled Agile Framework (SAFe) methodology, SAFe Agilest Certification, or experience as a member of an Agile team.

    • Skills

    AgileAngularBehavior Driven DevelopmentC/C++Continuous IntegrationCSSDockerEclipseGitHTMLJavaJava Enterprise EditionJavaScriptJenkinsJSONJUnitKubernetesMavenMongoDBOraclePostgreSQLPythonREST APISAFeSCRUMSeleniumSpring BootSpring FrameworkSQLTest Driven DevelopmentVisual Studio CodeXMLYAML

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