Software Developers

Leidos LLC; Alabama; On-site; USD 70,000 - 126,000; Full time

Benefits offered by this job

Health and Wellness programs

Paid Leave and Retirement

Job summary

Leidos LLC in the United States is hiring Software Developers across multiple levels to support missile defense programs in the Defense Sensors division.

You will design, develop, and maintain real-time software in C++/Java, work on CI/CD pipelines, participate in Agile ceremonies, and collaborate with program experts to deliver mission-critical capabilities.

Qualifications

• Bachelor of Science in Computer Science, Software Engineering, or related field from ABET-accredited institution with 2–4 years experience in real-time software.
• Proficiency in C++ and Java; experience with UI development.
• Experience with GitLab/Git for version control.
• Experience with Red Hat Enterprise Linux (RHEL).
• Knowledge of Agile methodologies such as SAFe in technical environments.
• Strong written and verbal communication skills with ability to present.
• U.S. citizen with active DoD Secret clearance.
• Resident of North Alabama area for onsite support.

Responsibilities

• Perform software development in C++, Java, or similar languages, including design and debugging.
• Collaborate with program experts to design and enhance software for integration.
• Apply software engineering principles for modifiability, efficiency, and reliability.
• Create and maintain automated builds and CI/CD pipelines in a CI/CD environment.
• Contribute to Agile team activities: PI Planning, Features, Sprint Planning, Retrospectives.
• Participate in team demos and program-level reviews to showcase work.

Skills

C++

Java

GitLab/Git

RHEL

SAFe Agile

Agile methodologies

Python

Jira

VersionOne

Jenkins

Ansible

Education

ABET-accredited B.S. in Computer Science or Software Engineering

Master’s degree in CS/SE (<2 years experience)

Tools

GitLab

VersionOne

Jira

Ansible

Jenkins

Python

RHEL

Job description

We’re hiring Software Developers at multiple levels. Leidos Defense Sensors is seeking multiple Software Developers across various experience levels to join our Sensor Research and Analysis Division and support critical missile defense programs. We are hiring for several types of software development roles, including positions focused on feature and enabler development within Agile teams, as well as roles dedicated to defect resolution and rapid-response support during major test events. As a Software Developer, you will develop, create, and modify general computer application software and specialized utility programs. You will also analyze user needs and translate them into effective software solutions for our customers. Depending on the specific role, you may work directly on an Agile Software Development team to help achieve key program objectives in support of our national defense. Ideal candidates bring strong analytical and problem-solving skills, work effectively in a collaborative team environment, and build strong working relationships with peers and technical staff across the program. In all of these roles, you will play a vital part in enhancing system performance and advancing mission‑critical objectives in support of our national defense.

Primary Responsibilities

• Perform high-level software development using C++, Java, or similar languages, including design, development, troubleshooting, and debugging of software components.
• Collaborate with program experts and user-community stakeholders to design, enhance, and debug existing software, and to develop new capabilities for integration into existing systems.
• Apply sound software engineering principles to ensure code is modifiable, efficient, reliable, understandable, fault-tolerant, and reusable; support software process management and control throughout the development lifecycle.
• Create and maintain automated software builds and pipelines within a Continuous Integration/Continuous Deployment (CI/CD) environment.
• Contribute to software development activities as part of an Agile team, including Program Increment (PI) Planning, Feature and Story development, Sprint Planning, Iteration Retrospectives, and related team ceremonies.
• Participate in team and program-level demos, including Sprint Reviews, to showcase completed work and support continuous improvement.
• Maintain a positive, proactive, and collaborative attitude, contributing to a productive team culture and demonstrating enthusiasm for solving complex challenges.

Basic Qualifications

• Level of opportunity, including compensation, will be matched to a candidate's experience.
• Bachelor of Science in Computer Science, Software Engineering, or a related technical field from an ABET-accredited institution and 2-4 years of experience in the design, development, and testing of real-time software applications and simulations; or a Master’s degree in Computer Science, Software Engineering, or a related technical field from an ABET-accredited institution with less than 2 years of relevant experience simulations
• Proficiency in C++
• Experience with Java and user interface development
• Experience with GitLab/Git for version control
• Experience with Red Hat Enterprise Linux (RHEL) environments
• Knowledge of Agile methodologies, such as the Scaled Agile Framework (SAFe), and application of the Agile methodologies within a technical/engineering environment.
• Strong written and verbal communication skills with the ability to create and deliver presentations
• Must be a US citizen possess and maintain an active DoD Secret clearance
• Candidate must be a resident of the North Alabama area to provide full time onsite support

Preferred Qualifications

• Relevant DoD or industry experience in missile defense
• Agile Scrum experience and familiarity with Agile methodologies such as the Scaled Agile Framework (SAFe)
• Experience with Jira, VersionOne, or similar Agile project-management and issue-tracking tools
• Experience developing and maintaining CI/CD pipelines (e.g., Ansible, Jenkins)
• Experience with Python
• Familiarity with modeling and simulation tools
• Experience with multi-core and multi-threaded programming
• Understanding of systems engineering concepts (not required to be a systems engineer)

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.

Leidos – Company Information

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 $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.

Pay and Benefits

Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

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.

Company Culture

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: July 8, 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.