Cleared Software Engineer Intern - Summer 2027

CACI International Inc; Denver (CO); On-site; USD 40,000 - 80,000; Part time

Job summary

CACI International Inc. is seeking a Cleared Software Engineer Intern for Summer 2027 Makalu program. You will design architecture for new components, work with front-end and back-end teams, and contribute to an agile development environment focused on mission-critical software.

This role requires on-site presence in Denver, CO and Sterling, VA. The internship emphasizes modern technologies, RESTful services, and a strong UX/UI focus, with opportunities for growth and learning across stacks,

Qualifications

• Pursuing an undergraduate or graduate degree in Computer Science or related field.
• Must be able to obtain and maintain TS/SCI with Poly.
• Entry-level experience and knowledge of coding.
• Experience using REST-based web services.
• Familiarity with Agile software development methodologies.
• Familiarity with modern web technologies (HTML5, CSS, CSS pre-processors, JS build tools).
• Familiarity with Java Spring Boot.
• Strong organizational and communication skills.
• Experience with Linux environment and shell scripting.

Responsibilities

• Proactively design architecture for new components in an agile team.
• Collaborate with on-site and remote engineers on front-end and back-end services.
• Address UX/UI improvements and software baseline enhancements.
• Utilize industry design patterns and open-source tools.
• Contribute to a positive team atmosphere.

Skills

REST-based web services

Agile development

Linux shell scripting

HTML5/CSS/JS tooling

Java Spring Boot

Clear written/verbal communication

TS/SCI clearance

Team collaboration

Education

Undergraduate or graduate degree in Computer Science

Tools

Docker

Kubernetes

WebPack/Bundlers

Job description

Job Title: Cleared Software Engineer Intern - Summer 2027Job Category: Intern/Co-opTime Type: Part timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: Part-Time On-CallPercentage of Travel Required: NoneType of Travel: NoneAnticipated Posting End: 11/23/2026

The Opportunity:

CACI is seeking skilled Software Development Interns for our Summer 2027 Makalu internship program. If you are enthusiastic about creating innovative products and components utilizing modern technologies, this opportunity may be a perfect fit for you. You will be engaging in a dynamic, start-up-like environment focused on new development within an agile framework. This role requires full-time, on-site presence at our locations in Denver, CO, and Sterling, VA.

Responsibilities:

On Team Makalu, typical responsibilities include proactively designing the architecture for new components, while also suggesting ways to improve the application and overall UI/UX. Our team works closely together with on-site and remote engineers developing front-end applications and back-end microservices, all dedicated to creating the best products and user experience possible.

• Day-to-day expectations include solving challenging, but rewarding technical problems, meeting program objectives within the agile development cycle, suggesting ways to improve UX/UI and the software baseline, and introducing new ways to meet mission needs.
• Be part of an agile team where communication skills and the ability to execute within the established development process are paramount to your and the team's success.
• Work on new technologies, striving to stay customer-focused and thriving on challenges to build new UI applications.
• Utilize industry proven design patterns and open-source tools.
• Contribute to a positive and upbeat team atmosphere.

Qualifications:

Required:

• Must be currently pursuing an undergraduate or graduate degree in Computer Science or a related field.
• Must be able to obtain and maintain a TS/SCI with Poly.
• Entry-level experience and knowledge of coding.
• Experience using REST-based web services.
• Familiarity with Agile software development methodologies.
• Familiarity with modern web technologies and techniques such as HTML5, CSS, CSS pre-processors (e.g. SASS, Less, Stylus), or JavaScript build tools (e.g. Browserify, WebPack, Closure).
• Familiarity with Java Spring Boot.
• Strong organizational skills and attention to detail.
• Strong verbal and written communication skills.
• Experience with Linux environment and Linux shell scripting.

Desired:

• An eagerness to learn a modern infrastructure and be a part of a team supporting mission critical systems.
• Familiarity with real-time communication mechanisms such as WebSockets.
• Familiarity with Node, Cesium, and/or Open Layers.
• Familiarity with Spring, Docker, and/or Kubernetes.
• Knowledge of microservices based architecture.
• Familiarity with Elasticsearch and SQL based databases.
• Familiarity with emerging trends in desktop, web, and mobile app development.
• Experience with deployments, dev ops, and/or AWS Experience with Git.

What You Can Expect:

• A culture of integrity.
• At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.
• An environment of trust.
• CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.
• A focus on continuous growth.
• Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.

Pay Range:

There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

Since this position can be worked in more than one location, the range shown is the national average for the position.

The proposed salary range for this position is:

$39,900-$79,900

Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.