Junior Software Engineer
LeidosAbout the role
Looking for an opportunity to make an impact?
At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to doing the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.
Your greatest work is ahead!
Leidos Defense Systems is seeking a talented Software Engineer to develop high-performance applications and backend systems supporting advanced sensors and mission systems. This role is ideal for engineers who enjoy building performant software today while growing into broader system-level and real-time development over time. We have offices across the United States engaging in the defense, space, cyber and commercial fields, we provide responsive, cost-effective engineering, scientific and IT solutions.
If this sounds like the kind of environment where you can thrive, keep reading!
Leidos Defense Systems Sector provides a diverse portfolio of systems, solutions, and services covering land, sea, air, space, and cyberspace for customers worldwide. Solutions for Defense include enterprise and mission IT, large-scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence analysis and operations support. Our team is solving the world’s toughest security challenges for customers with “can’t fail” missions. To explore and learn more, click here!
Are you ready to make an impact? Share your resume with us today!
Primary Responsibilities:
In this mission we develop training software solutions for our customers in the area of Unmanned Aerial Systems simulation. We use our skills to design and implement new features, fix bugs, perform peer reviews, write tests, analyze new technologies and best practices, and collaborate with other teammates. We develop solutions in C++, .NET, and C#. The team follows Agile software practices, shares a passion for solving complex problems, delivering exceptional software, improving software development processes, and exceeding customer expectations.
Basic Qualifications:
Bachelor’s Degree with 2+ years of applicable experience.
Must be able to obtain and maintain a SECRET Clearance.
Experience in the following technologies:
Linux
C#
SCM
Databases
Experience in the following concepts:
Units Tests
Code Reviews
Documentation/Writing Skills
Communication
Networking
Scripting
DevOps/Continuous Integration Continuous Development
Preferred experience in the following technologies:
Git SCM
Podman/Docker in air-gapped environments
Protobuf
Postgres/SQL
Kubernetes
Helm
OpenShift
Preferred experience in the following concepts:
Containerization
Asynchronous Developememt
Distributed Systems
API Design
VM Management
Experience managing databases within a cluster
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:
September 14, 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 $69,550.00 - $125,725.00
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.
Responsibilities
- Develop training software solutions for Unmanned Aerial Systems simulation
- Design and implement new features
- Fix bugs and perform peer reviews
- Write tests and analyze new technologies
- Collaborate with teammates
Qualifications
- Bachelor’s Degree
- 2+ years of applicable experience
- Ability to obtain and maintain a SECRET Clearance
- Experience with Linux, C#, SCM, and Databases
- Knowledge of Unit Tests, Code Reviews, and Documentation
Skills mentioned
About Leidos
Leidos is an industry and technology leader serving government & 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 $17.2 billion for the fiscal year ended January 2, 2026. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead, visit careers.leidos.com for our latest opportunities.