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About the Role

Leidos is seeking a Junior Software Development Engineer to support analysis, design, development, and testing of cross‑platform applications. The role involves working with Linux and Android, using development platforms such as Qt and Android, and programming in C++. Experience with SQLite and integrating modules across languages is desired. You will work in an Agile Scrum environment, applying solid software engineering, object‑oriented, and functional programming principles to produce maintainable, efficient, secure, and reliable code.

Responsibilities

Support analysis, design, development, and testing of cross-platform applications.
Work with Linux and Android, using Qt and Android development platforms, and programming in C++.
Apply solid software engineering, object-oriented, and functional programming principles to produce maintainable, efficient, secure, and reliable code.
Support configuration management.
Understand interfaces with APIs and host systems (virtualized, containerized, or hardware).
Collaborate with UI/UX engineers, software and system engineers, AI engineers, and QA teams to meet customer requirements.

Requirements

Current/active Secret DoD security clearance.
BS Degree in Computer Science or equivalent.
4-8 years of experience.
4+ years of experience developing for Linux/Unix and Android operating systems.
4+ years of experience with C++.
1-4 years of experience with Qt and Android application platforms.
Experience in design and implementation of user interfaces for embedded applications / mobile devices with modern UI & Graphics frameworks.
Experience developing mobile applications with an eye for resource limited (and therefore optimized) software engineering.
Current Security + Certification (or achieve within 90 days of hire).

Skills

SQLite
Integrating modules across languages
Scrum Methodology
Agile practices
Mobile Application Development
Software Configuration Management (e.g., Subversion, Git, GitLab, GitHub)
UI / UX Development Frameworks (e.g., Qt, Android, AngularJS, Ionic, GWT, SmartGWT, React, Node.js)
Agile Management Tools and Concepts (e.g., VersionOne, JIRA, Rally)
Automated Testing Tools/Technologies/Concepts (Squish for Qt, TDD, Selenium, Cucumber, Gherkin, BDD, Catch 2, Flawfinder, Valgrind)
Formalized API development methodologies (e.g., OpenAPI 3.0)
NNG
Google Protocol Buffers
Clang Format
Clang-Tidy

Work Type

Flexible work environment
9/80 schedule (every other Friday off)

Experience Level

Junior
4-8 years of experience
4+ years of experience developing for Linux/Unix and Android operating systems
4+ years of experience with C++
1-4 years of experience with Qt and Android application platforms

Education Level

BS Degree in Computer Science or equivalent
Security + Certification (achieve within 90 days of hire)

Salary/Compensations

$87,100.00 - $157,450.00

Benefits

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
Competitive compensation
Health and Wellness programs
Income Protection
Retirement

About the Company

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.
Reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026.
Specializes in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management.
Focuses on outthinking, outbuilding, and outpacing the status quo to meet mission demands.

Equal Opportunity

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 consider for employment qualified applicants with criminal histories consistent with relevant laws.