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Software Engineer - multiple levels - CI polygraph
Constellation TechnologiesAnnapolis Junction, MD, United Statesfull_timeVerifiedPosted 17 Feb 2026
About the 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.
The environment and perks: • Professional development investment and paid time off for training• Contract and work locations in Maryland, Virginia, Colorado, Texas, Utah, Florida and Hawaii.
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.
The environment and perks: • Professional development investment and paid time off for training• Contract and work locations in Maryland, Virginia, Colorado, Texas, Utah, Florida and Hawaii.
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