INTERNSHIP DETAILS

Jr. Software Engineer Intern

CompanyLeidos
LocationTucson
Work ModeOn Site
PostedSeptember 21, 2026
Internship Information
Core Responsibilities
The intern will participate in full stack software development activities as part of an agile team, including UI design, API integration, and database scripting. They will also analyze complex system requirements and receive mentorship from senior staff on software engineering principles and standards.
Internship Type
part time
Salary Range
$48,100 - $86,950
Company Size
37472
Visa Sponsorship
No
Language
English
Working Hours
40 hours
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About The Company
Leidos is an industry and technology leader serving government & 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. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead, visit careers.leidos.com for our latest opportunities.
About the Role

Leidos is looking for a Junior Software Engineer Intern to join a high performing agile team to support a nationally significant and fast-paced management programs.  The Leidos team is focusing on full stack development of user interfaces, restful services, APIs, database scripting, AWS Cloud infrastructure, and integration of micro-services.

Primary Responsibilities

  • The Junior Software Engineer Intern needs to be local to Tucson and will be responsible for software development activities both individually and as a member of the an agile team.

  • The intern will be mentored by Senior Staff through program increment planning, industry standards, and related development activities.

  • The individual will analyze and study complex system requirements, use design software tools, provide support using formal specifications, data flow diagrams, and other accepted design techniques with the help of other team members. 

  • The individual will be mentored through software engineering principles and standards to ensure that developed code is modifiable, efficient, reliable, understandable, fault tolerant, modular and reusable. 

  • The individual will be assigned various tasks across the program’s full stack to help gain experience, knowledge and application of object orientating programming languages.

Basic Qualifications

  • Working towards a Bachelors’ degree in Computer Science, Mathematics, or similar discipline.

  • Knowledge of, exposure and/or experience working with software design patterns and Web Application Development.

  • Knowledge of, exposure and/or experience using some of the following Programming Languages and tools: Java, JavaScript, Typescript, Python, C++, SQL

  • Familiarity with one or more of the following Development Frameworks: React, Svelte, Vue, Django, SpringBoot, Flask, FastAPI, NodeJS

  • Self-motivated to learn and apply themselves to problem solving

  • Familiarity with GIT standards

  • Must be able to obtain and maintain a TS/SCI with Polygraph clearance

  • US Citizenship required

  • Must be able to commute to or is located in the Tucson area

Preferred Qualifications

  • Some experience developing front end user interface frameworks either through side projects or relevant work experience  

  • Familiarity with working in an agile environment

  • Familiarity with working on Full Stack Development

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:

September 21, 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 $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.

Key Skills
JavaJavaScriptTypescriptPythonC++SQLReactSvelteVueDjangoSpringBootFlaskFastAPINodeJSGitAWS Cloud
Categories
SoftwareTechnologyEngineeringGovernment & Public SectorSecurity & Safety