Senior Software Engineer 25k Sign On Bonus

Leidos has a new and exciting opportunity for a Senior Software Engineer in our National Security Sectors (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!

This position is eligible for a sign on bonus of $25000.

Leidos is seeking a driven and experienced Full Stack Software Engineer to support a high-stakes mission-critical this role youll help architect develop and integrate software solutions that shape national security and drive meaningful innovation. Join an Agile team where your expertise wont just be valuedit will be vital.

Primary Responsibilities

• Design develop and enhance secure software applications and systems
• Integrate new software into evolving operational environments
• Analyze user needs to craft efficient and scalable solutions
• Debug and optimize existing software for performance and reliability
• Implement complex algorithms that meet rigorous technical standards
• Create and maintain system documentation and technical reports
• Collaborate in Agile Scrum teams to deliver rapid high-quality releases

Basic Qualifications

Preferred

CONMD

CSSRC

Were not looking for perfectly polished resumes or perfect fits. Were looking for people who break limits ask hard questions and dont wait to be told whats next. At Leidos were not following the roadmap were redrawing it.

Original Posting : November 6 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 $126100.00 - $227950.00

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.

Required Experience :

Senior IC

Key Skills

Spring,.NET,C / C++,Go,React,OOP,C#,AWS,Data Structures,Software Development,Java,Distributed Systems

Employment Type : Full-Time

Experience : years

Vacancy : 1

Monthly Salary Salary : 126100 - 227950