Software Engineer

Software Engineer

Leidos has a new and exciting opportunity for a 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 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

• Master's degree in Computer Scient or a realted discipline and at least 6 years of relevant experience, or a 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.

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:
March 4, 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.