Junior Software Engineer

Leidos; Huntsville (AL); On-site; USD 58,000 - 105,000; Full time

Job summary

Leidos Defense Systems in Huntsville, AL is seeking a software engineer to develop high-performance training software for unmanned aerial systems simulations. You will design and implement new features, fix bugs, write tests, and participate in peer reviews within an Agile team.

You will work with C++, .NET, and C#, collaborate across disciplines, and grow toward system-level and real-time development. A SECRET clearance is required or ability to obtain one.

Qualifications

• Bachelor's degree in Software Engineering, Computer Science, Computer Engineering, Electrical Engineering, Aerospace Engineering, Mathematics, or equivalent technical degree.
• Must be able to obtain and maintain a SECRET Clearance.
• Experience with Linux, C#, SCM, Databases.
• Experience with Unit Tests, Code Reviews, Documentation/Writing Skills, and Communication.
• Knowledge of Networking, Scripting, and DevOps/CI-CD processes.
• Preferred: Git, Podman/Docker in air-gapped environments, Protobuf, Postgres/SQL, Kubernetes, Helm, OpenShift.
• Preferred concepts: Containerization, Asynchronous Development, Distributed Systems, API Design, VM Management, DB clustering.

Responsibilities

• Develop training software solutions for Unmanned Aerial Systems simulation.
• Design and implement new features, fix bugs, write tests, and perform peer reviews.
• Collaborate with teammates and analyze new technologies and best practices.
• Develop solutions in C++, .NET, and C# following Agile practices.

Skills

Security Clearance

Unit Tests

Code Reviews

Documentation

Communication

Networking

Scripting

DevOps CI/CD

Education

Bachelor's degree in Software Engineering, CS, CE, EE, Aerospace, Mathematics

Tools

Git

Podman/Docker

Protobuf

Postgres/SQL

Kubernetes

Helm

OpenShift

Linux

C#

Job description

Description

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,

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:

• Candidate must possess at least a bachelor’s degree in Software Engineering, Computer Science, Computer Engineering, Electrical Engineering, Aerospace Engineering, Mathematics, or equivalent technical degree
• Must be able to obtain and maintain a SECRET Clearance.
• Experience in the following technologies:LinuxC#SCMDatabases

• Experience in the following concepts:Units TestsCode ReviewsDocumentation/Writing SkillsCommunication
• NetworkingScriptingDevOps/Continuous Integration Continuous Development
• Preferred experience in the following technologies:Git SCMPodman/Docker in air-gapped environmentsProtobufPostgres/SQLKubernetesHelmOpenShift

• Preferred experience in the following concepts:ContainerizationAsynchronous DevelopememtDistributed SystemsAPI DesignVM ManagementExperience 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:

October 7, 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 $57,850.00 - $104,575.00

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.

About Leidos

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, www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at [e-mail].

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.