Sr. Software Engineer TS/SCI Polygraph
Company: Leidos
Location: Annapolis Junction
Posted on: April 2, 2026
|
|
|
Job Description:
Leidos has an exciting opportunity for a Sr. Software Engineer!
*Must have an active TS/SCI Polygraph up front. No exceptions.* You
will perform software development lifecycle (SDLC) activities as
both an individual and a member of our top-notch agile development
team building a large complex enterprise system. Development
includes the full range of turning Agile user stories into
implementable concepts, through development, unit testing,
integration and test, and deployment of the new capabilities for
the large complex enterprise system. Following the Behavior-driven
Development (BDD) pattern, developers are responsible for
implementing robust testing leveraging DevOps automation and, where
appropriate, use of test automation commercial tools. There are a
range of opportunities for server-side business logic
implementation as well as client web application and user interface
(UI) development. Java, Python, embedded C/C++, Java cryptographic
framework, XML, web UI (i.e., Angular, JavaScript, CSS, HTML, etc.)
and special purpose device programming opportunities are available.
Primary Responsibilities You will actively participate in daily
stand-ups, Sprint Planning, Program Increment (PI) Planning, and
other related team activities; analyze and study complex system
requirements, use design software tools, provide support using
formal specifications, data flow diagrams, and other accepted
design techniques and will use sound software engineering
principles to ensure that developed code is modifiable, efficient,
reliable, understandable, fault tolerant, and reusable. You will
provide software process management and control throughout the
coding portion of the software development process and will promote
code reuse and cross-program collaboration while reducing
maintenance costs by creating common functions and shared actions
for developers and testers. You will engineer, author, tune and
document automation scripts in a development environment and deploy
to the test/production bench. Basic Qualifications Must have a BS
degree and 12 – 15 years of prior relevant experience or Masters
with 10 – 13 years of prior relevant experience. Additional
experience may be substituted for a degree. Must have demonstrated
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.
Preferred Qualifications 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, and 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 the Scrum, Scaled Agile Framework (SAFe)
methodology, SAFe Agilest Certification, or experience as a member
of an Agile team. If you're looking for comfort, keep scrolling. At
Leidos, we outthink, outbuild, and outpace the status quo — because
the mission demands it. We're not hiring followers. We're
recruiting the ones who disrupt, provoke, and refuse to fail. Step
10 is ancient history. We're already at step 30 — and moving faster
than anyone else dares. Original Posting: December 8, 2025 For U.S.
Positions: While subject to change based on business needs, Leidos
reasonably anticipates that this job requisition will remain open
for at least 3 days with an anticipated close date of no earlier
than 3 days after the original posting date as listed above. Pay
Range: Pay Range $131,300.00 - $237,350.00 The Leidos pay range for
this job level is a general guideline only and not a guarantee of
compensation or salary. Additional factors considered in extending
an offer include (but are not limited to) responsibilities of the
job, education, experience, knowledge, skills, and abilities, as
well as internal equity, alignment with market data, applicable
bargaining agreement (if any), or other law.
Keywords: Leidos, Philadelphia , Sr. Software Engineer TS/SCI Polygraph, IT / Software / Systems , Annapolis Junction, Pennsylvania
