Software Engineer Intern

Leidos LLC; Arlington (VA); Hybrid; USD 48,000 - 87,000; Full time

Benefits offered by this job

Health and Wellness programs

Income Protection

Paid Leave

Retirement

More details are available here.

Job summary

Leidos is seeking interns to join a mission-focused engineering team in Arlington, VA. You will build software prototypes, APIs, and microservices supporting data analytics, machine learning, and user-facing applications.

You will work across the stack, write clean, tested code, and participate in design sessions and code reviews. The role offers hybrid work with on-site and remote days and aims for a May/June 2027 start.

Qualifications

• Currently enrolled in a Bachelor's or Master's program in Computer Science, Computer Engineering, Software Engineering, Electrical Engineering, Systems Engineering, Mathematics, Data Science, or a closely related field.
• Experience in at least one of: Python, Java, or C++.
• Must be U.S. Citizen.
• Eligible to obtain and maintain a Secret security clearance. Leidos will guide you through the clearance process.

Responsibilities

• Build and enhance software prototypes, APIs, and microservices that support data analytics, machine learning, and user-facing applications.
• Contribute across the stack: user interfaces and back-end services.
• Write clean, maintainable code with tests; troubleshoot and fix issues.
• Participate in design sessions, code reviews, and agile ceremonies.
• Research and evaluate new technologies; present findings and recommendations.
• Collaborate with software/system engineers and research/data scientists in areas like multi-modal information retrieval, UI engineering, metrics, computer vision, and autonomous systems.

Skills

Python/Java/C++

Education

Bachelor's or Master's in Computer Science / Computer Engineering / Software Engineering / Electrical Engineering / Systems Engineering / Mathematics / Data Science

Tools

Git/GitHub

VS Code

Jupyter Notebooks

Docker

PostgreSQL/MySQL

Job description

Join Leidos' mission-focused engineering team and build real software that powers data analytics, computer vision, and AI capabilities for national security customers. At Leidos, we don’t just offer internships - we offer career acceleration. You’ll ship code, learn from experienced engineers and researchers, and see your work used in production.

Primary Responsibilities

• Build and enhance software prototypes, APIs, and microservices that support data analytics, machine learning, and user-facing applications.
• Contribute across the stack: user interfaces and back-end services.
• Write clean, maintainable code with tests; troubleshoot and fix issues.
• Participate in design sessions, code reviews, and agile ceremonies.
• Research and evaluate new technologies; present findings and recommendations.
• Collaborate with software/system engineers and research/data scientists in areas like multi-modal information retrieval, UI engineering, metrics, computer vision, and autonomous systems.

Basic Qualifications

• Currently enrolled in a Bachelor's or Master's program in Computer Science, Computer Engineering, Software Engineering, Electrical Engineering, Systems Engineering, Mathematics, Data Science, or a closely related field.
• Experience in at least one of: Python, Java, or C++.
• Must be U.S. Citizen.
• Eligible to obtain and maintain a Secret security clearance. Leidos will guide you through the clearance process.

Preferred Qualifications

• Hands‑on experience building prototypes or applications (class, club, hackathon, research, or personal projects).
• Exposure to data engineering or analytics: data cleansing, transformation, feature engineering, or exploratory analysis.
• Familiarity with one or more of the following: Tools: Git/GitHub, VS Code or similar IDEs, Jupyter Notebooks.
• Backend: REST APIs, microservices, SQL (PostgreSQL/MySQL), containerization (Docker), basic Linux.
• Frontend: JavaScript/TypeScript, React or similar.
• Data/ML: NumPy/Pandas, scikit‑learn; plus for PyTorch or TensorFlow.
• Cloud and CI/CD: AWS/Azure basics, build pipelines.
• Interest in secure software development practices.
• Familiarity with Rust.
• Ability to obtain /maintain Top Secret security clearance with polygraph.

Work location and schedule Arlington, VA. Hybrid: 4 days on-site, 1 day remote per week. 8-10 week internship, target start May/June 2027.

You'll thrive in this role if you are Curious and adaptive- comfortable learning new domains and asking good questions. Organized and self-directed, while still highly collaborative. Confident communicating your needs and working as an active team member.

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.

Pay Range $48,100.00 - $86,950.00

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

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

• Competitive compensation
• Health and Wellness programs
• Income Protection
• Paid Leave
• 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.