Software Engineer Intern
Company: Leidos
Location: Arlington
Posted on: April 1, 2026
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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. Leidos is seeking a curious and
enthusiastic Software Engineer Intern to join our dynamic team in
Arlington, VA. This is your opportunity to collaborate with
industry leaders in Artificial Intelligence (AI), data analytics,
and machine learning while contributing to mission-critical
applications. Through hands-on training, teamwork, and exposure to
challenging technical work, you’ll gain the skills and experience
to accelerate your career. 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 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 DoD 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 DoD 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 2026. Why Leidos Learn from a diverse team of
engineers, data scientists and other professionals building
mission-critical systems. Mentorship, tech talks, and intern cohort
events to accelerate your growth. Real impact: contribute to
R&D and production systems supporting customers. How to stand
out Share a link to your GitHub/portfolio and briefly describe a
project you’re proud of (what you built, technologies used, and
your role). If team-based, clarify your individual contributions.
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: March 30, 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.
Keywords: Leidos, Bethesda , Software Engineer Intern, Engineering , Arlington, Maryland
