Senior Software Engineer TS​/SCI Polygraph

Description

Leidos has a new and exciting opportunity for a Software Engineer in our Intel Sector, 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!

Are you seeking a new and challenging position supporting a complex program? Well, look no further! This is an exciting time to contribute to an important program with lasting impactful results. Leidos is currently looking to add a Software Engineer (SWE-3) to a growing task. Tasks will include new design and prototyping within a fast-paced Agile team structure. The Software Engineer develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems) based upon documented requirements.

Works individually or as part of a team. Reviews and tests software components for adherence to the design requirements and documents test results. Resolves software problem reports. Utilizes software development and software design methodologies appropriate to the development environment. Provides specific input to the software components of system design to include hardware/software trade-offs, software reuse, use of Commercial Off-the-shelf (COTS)/Government Off-the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components.

The program is extending a $25,000 Sign On Bonus!

Clearance Required:
Must have TS/SCI with Polygraph.

• Analyze user requirements to derive software design and performance requirements.
• Debug existing software and correct defects.
• Design and code new software or modify existing software to add new features.
• Integrate existing software into new or modified systems or operating environments.
• Develop simple data queries for existing or proposed databases or data repositories.
• Write or review software and system documentation.
• Develop or implement algorithms to meet or exceed system performance and functional standards.

• 20 years  experience as a SWE in programs and contracts of similar scope, type, and complexity. Four (4) years of additional SWE experience on projects with similar software processes may be substituted for a bachelor s degree.
• Bachelor's degree in Computer Science or related discipline from an accredited college or university.
• Clearance Required:
  Must have TS/SCI with Polygraph
• Proven track record in debugging software and correcting defects.
• Experience with software design and performance requirements analysis.
• Strong background in developing simple data queries.
• Experience in integrating existing software into new or modified systems.
• Capability to write or review software and system documentation.

• Proficiency with Git, Linux, Jira, Confluence, Eclipse.
• Familiarity with Agile Scrum methodologies.
• Experience with React or similar libraries (Vue, Angular).
• Ability to lead technical teams.
• Experience in complex database or data repository interfaces/queries.
• Proven ability to ensure quality control of developed and modified software.

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit

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