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Security Verification Test(SVT) Software Engineer TS/SCI Polygraph

Leidos Annapolis Junction, Maryland, United States

onsitefull-time

Salary: $107,900 - $195,050 / year

Posted Feb 24, 2026

Role & seniority: SVT Software Engineer (senior, 8+ years experience preferred; TS/SCI with Poly required up front)

Stack/tools: Java (JEE), Python, C/C++, SQL, SOAP/WSDL/WADL, PERL, PowerShell, VBS; Eclipse; Postgres, Oracle; Jenkins; Web UI; JSON/XML; cryptographic tech (symmetric/asymmetric, ASN.1, digital signatures); Windows/Linux; test automation, DSL development

Top 3 responsibilities

  • Develop software individually and as part of an Agile team; participate in PI planning; analyze complex requirements and design using CASE tools

  • Promote code reuse, create shared functions, and manage software process during coding; ensure modifiability, efficiency, reliability, fault tolerance, and reusability

  • Engineer, author, tune, and document automation scripts; deploy to test/production bench; support testing and CI

Must-have skills

  • 8+ years’ relevant software development experience; strong Java experience; familiarity with multiple languages/tools listed above

  • Web services, databases, JSON/XML; Windows and/or Linux development; understanding of cryptographic systems

  • Ability to plan/prioritize tasks and communicate effectively; able to work independently and in fast-moving teams; TS/SCI with Polygraph (up front)

Nice-to-haves

  • Experience with Agile practices (Pair Programming, TDD, ATDD, Refactoring), SAFe; DSL development; real-time embedded software

  • JEE, Tomcat/WebLogic/JBoss, UFT/Selenium/FITNesse/Mockito/Cucumber; Behavior Driven Devel

Full Description

Security Verification Test (SVT) Software Engineer Leidos has a new and exciting opportunity for a Security Verification Test (SVT) Software Engineer in our Intel Sector's Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! The selected individual will perform software development activities as a member of an agile development team focused on preparation and execution of verification tests of our software releases. Development includes the full range of turning agile stories into implementable concepts, through development, testing and deployment of the new capabilities in this large, complex system. Following the Behavior Driven Development (BDD) pattern, our developers are responsible for implementing robust testing leveraging DEVOPS automation and, where appropriate, use of test automation commercial tools. Developers will have the opportunity to focus on developing customer domain specific language code and there are a range of opportunities for Java, embedded C++, scripting languages, object-oriented modeling tools, low-level programming, serialization/deserialization, and dependency injection. Primary Responsibilities The SVT Software Engineer will be responsible for software development activities both individually and as a member of an agile team. She/he will actively participate in Program Increment planning and related team activities, and will analyze and study complex system requirements, use design software tools, provide support using formal specifications, data flow diagrams, and other accepted design techniques with the use of Computer Aided Software Engineering (CASE) tools, and will use sound software engineering principles to ensure that developed code is modifiable, efficient, reliable, understandable, fault tolerant, and reusable. The individual will provide software process management and control throughout the coding portion of the software development process. Additionally, the individual will promote code reuse and cross-program collaboration while reducing maintenance costs by creating common functions and shared actions for developers and testers. The selected individual will engineer, author, tune, and document automation scripts in a development environment and deploy to the test/production bench. Basic Qualifications Bachelor's degree in Computer Science or a related discipline and at least 8 years of relevant experience. Additional experience may be substituted for a degree. Must have demonstrated experience with Java. Experience or familiarity with multiple the following: Java/JEE, Python, C/C++, SQL, SOAP, WSDL, WADL, PERL, PowerShell, VBS, Eclipse, Postgres, Oracle, Jenkins. Experience with Web Application User Interface Development, knowledge of databases and structures, and/or experience working with JSON, HTML, XML, XSLT. Experience with technologies underlying cryptographic systems (symmetric and asymmetric cryptography, ASN.1 encoding, XML canonicalization, digital signatures) 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. Clearance Required: Must have TS/SCI with Polygraph, up front. Preferred Qualifications 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, TDD, Refactoring, and ATDD. Developing/integrating with custom defined Domain Specific Languages (DSL). Implementing structures in a scripting language that can be interpreted by a DSL. Experience with Object Software Modeling tools. Experience with developing real-time embedded software. Experience with the following: JEE (EJB, JPA, JTA, JAX-B, JAX-RS, JAX-WS), SQL, application servers (Tomcat, WebLogic, JBoss), scripting. Experience with FITNesse, Mockito, Cucumber, Unified Functional Tester (UFT), Selenium. Experience with Behavior Driven Development (BDD). Secure Software development (i.e., Layer 7 Policy). Experience with the Scaled Agile Framework (SAFe) methodology, SAFe Agilest Certification, or experience as a member of an agile team. Additional experience in J2EE, Python, C/C++, SQL, SOAP, WSDL, Postgres, Oracle, Mongo, PowerShell a plus. At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you – apply today. careers.leidos.com/CONMD CSSKEY CONMD 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: February 24, 2026 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 $107,900.00 - $195,050.00 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. Leidos Leidos is a Fortune 500® innovation company rapidly addressing the world's most vexing challenges in national security and health. The company's global workforce of 47,000 collaborates to create smarter technology solutions for customers in heavily regulated industries. Headquartered in Reston, Virginia, Leidos reported annual revenue of approximately $15.4 billion for the fiscal year ended December 29, 2023. For more information visit www.Leidos.com. Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here. Securing Your Data Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to spam.leidos@leidos.com. Commitment and Diversity All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

Software DevelopmentVerification TestingAgileBehavior Driven DevelopmentDevOps AutomationJavaC++Scripting LanguagesObject-Oriented ModelingLow-Level ProgrammingSerialization/DeserializationDependency InjectionCASE ToolsAutomation ScriptsWeb ServicesCryptographymulti-location

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