Senior Software Engineer with 25K sign on bonus!

Leidos is seeking a driven and experienced Senior Software Engineer to support a high-stakes, mission-critical program. In this role, you'll help architect, develop, and integrate software solutions that shape national security and drive meaningful innovation. Join an Agile team where your expertise won’t just be valued—it will be vital.

💰 Sign-on Bonus: $25,000

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 14+ years of software engineering experience on comparable programs

Bachelor's degree in Computer Science or related discipline

TS/SCI clearance with Polygraph

Common software development tools such as Git, Kira, Confluence and other Atlassian Products

Experience with Linux Command Line

Recent experience with Java or similar programming language

Basic understanding of Container Technologies such as Docker

Basic understanding of web development and APIs

Ability to troubleshoot and problem solve

Ability to learn new software and technologies related to backend or frontend development

Knowledge needed: Experience with Spring Boot

Experience with JavaScript, ReactJS specifically

Experience with Apache Kafka

Experience with Apache Nifi

Understanding of Docker/Docker Compose

Experience with build tools, such as Maven

Experience with SQL databases

CONMD CSSRC 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: June 16, 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 $131,300.00 - $237,350.00 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.