Principal Software Engineer - 25k Sign On - TS / SCI / Poly

Description

Leidos has a new and exciting opportunity for a Software Engineer in our National Security Sector's (NSS) 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.

Position is eligible for a sign on bonus of $25,000!

Job Responsibilities :

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.

Basic Qualifications :

20 years' experience as a SWE in programs and contracts of similar scope, type, and complexity.

Bachelor's degree in Computer Science or related discipline from an accredited college or university.

Clearance Required : Must have TS / SCI with Polygraph

Preferred Qualifications :

Java development experience

Proficiency with Git, Linux, Jira, Confluence, Eclipse.

Familiarity with Agile Scrum methodologies.

Experience with React or similar libraries (Vue, Angular).

Strong problem-solving skills.

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.

CONMD

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At Leidos, we don't want someone who "fits the mold"-we want someone who melts it down and builds something better. This is a role for the restless, the over-caffeinated, the ones who ask, "what's next?" before the dust settles on "what's now."

If you're already scheming step 20 while everyone else is still debating step 2... good. You'll fit right in.

Original Posting : September 5, 2025

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 $148,850.00 - $269,075.00

The Leidos pay range for this job level is a general guideline onlyand 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.