Software Engineer TS/SCI Poly

Leidos

• $87K — $157K *
Aerospace & Defense
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • BS in Computer Science or related field and 4-8 years of experience, or Masters with 2-6 years; additional experience may substitute for a degree.
  • Demonstrated experience with Java is essential.
  • Familiarity with various Java frameworks, including Spring, Java EE, and Jackson.
  • Experience in multiple programming languages, such as JavaScript, Python, and C/C++.
  • Proven experience developing applications on Windows OS.
  • Experience with web services is necessary.
  • Strong understanding of software development principles is required.
  • Must hold a TS/SCI clearance with Polygraph on Day One.

Responsibilities

  • Participate in Agile development team activities including daily stand-ups and Sprint Planning.
  • Analyze complex system requirements and utilize design software tools.
  • Develop code that is efficient, reliable, and modifiable using sound engineering principles.
  • Manage software development processes, promoting code reuse and collaboration.
  • Engineer and document automation scripts for deployment in development environments.
  • Support the testing and integration phases of the development lifecycle.
  • Contribute to the deployment of new capabilities for the enterprise system.

Benefits

  • Competitive Paid Time Off.
  • 11 paid Holidays each year.
  • 401K plan with a 6% company match and immediate vesting.
  • Flexible working hours to accommodate personal needs.
  • Education and Training Support for professional development.
  • Parental Paid Leave for family support.
  • Discounted Stock Purchase Plans to encourage investment in the company.
Full Job Description
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 and 4 - 8 years of prior relevant experience or Masters with 2 - 6 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 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 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.


Original Posting:
March 23, 2026

Pay Range:
Pay Range $87,100.00 - $157,450.00

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.

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