Software Engineer TS/SCI Polygraph

Leidos Inc; Corridor North (MD); On-site; USD 131,300 - 237,350; Full time

Benefits offered by this job

Paid Time Off

401K with 6% company match

Flexible Scheduling

Education and Training Support

Job summary

Leidos Inc in Maryland offers an exciting opportunity for Software Engineers at various levels to contribute to national security. The role involves software development in an Agile environment, working with technologies like Java, Python, and JavaScript to build complex systems.

Applicants should have a relevant degree and experience with multiple programming languages and frameworks, along with required TS/SCI clearance. Competitive benefits and a focus on technical upskilling are part of the offer.

Qualifications

• Must have demonstrated experience with Java.
• Experience with multiple Java frameworks such as Spring and JEE.
• Familiarity with languages like JavaScript, Python, and C/C++.
• Experience with software development lifecycle (SDLC) processes.

Responsibilities

• Participate in Agile development activities like daily stand-ups and sprint planning.
• Analyze complex system requirements and design software solutions.
• Develop software code that is reliable, maintainable, and efficient.
• Create automation scripts for deployment and testing.

Skills

Java

Java frameworks (Spring, JEE)

JavaScript

Python

C/C++

SQL

Agile methodologies

DevOps practices

Education

BS degree in relevant field

Master's degree (preferred)

Tools

Eclipse

Visual Studio

Oracle

PostgreSQL

Job description

Description

Leidos has a new and exciting opportunity for Software Engineers (hiring junior level, mid-level, up to senior level) in our Intelligence 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!

Job Summary

The Software Engineer will perform software development lifecycle (SDLC) activities as a member of an 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

The Software Engineer will be responsible for software development activities both individually and as a member of an Agile team. The Software Engineer will actively participate in daily stand-ups, Sprint Planning, Program Increment (PI) Planning, and other related team activities. The individual will 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. She/he 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. She/he will engineer, author, tune and document automation scripts in a development environment and deploy to the test/production bench.

Basic Qualifications

• Requires BS degree and 8 - 12 years of prior relevant experience or Masters with 6 - 10 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 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 developing on Windows 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 Requirement

• Clearance Required: Must have TS/SCI with Polygraph on Day One.

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 developing on Linux operating systems.
• Experience with technologies underlying cryptographic systems (symmetric and asymmetric cryptography, ASN.1 encoding, XML canonicalization, digital signatures).
• 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.

Pay Range

Pay Range: $131,300.00 - $237,350.00

Commitment to Non-Discrimination

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.

careers.leidos.com/CONMD

Original Posting: March 23, 2026