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Full Stack Engineer Intern Jobs in Ballwin, MO (NOW HIRING)

CACI

Full Stack Developer

Saint Louis, MO · On-site

$90K - $189K/yr

Full Stack Developer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: None ...

Synthesis Systems

Full Stack Java Developer

Creve Coeur, MO · On-site

$49.25 - $63.50/hr

The Full Stack Developer provides frontend and backend development support. The successful candidate will also provide best practices to design single-page architecture (SPA) applications and micro ...

Synthesis Systems

Full Stack Java Developer

Creve Coeur, MO · On-site

$49.25 - $63.50/hr

The Full Stack Developer provides frontend and backend development support. The successful candidate will also provide best practices to design single-page architecture (SPA) applications and micro ...

Leidos

Journeyman Full Stack Developer

Saint Louis, MO · On-site

$69K - $125K/yr

The Leidos National Solutions Division has an exciting opportunity for a Journeyman Full Stack Engineer to assist with the software development, maintenance, integration, deployment, and sustainment ...

Leidos

Journeyman Full Stack Developer

Saint Louis, MO · On-site

$69K - $125K/yr

The Leidos National Solutions Division has an exciting opportunity for a Journeyman Full Stack Engineer to assist with the software development, maintenance, integration, deployment, and sustainment ...

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All JobsFull Stack Engineer Intern JobsFull Stack Engineer Intern Jobs in Ballwin, MO

Full Stack Engineer Intern information

See Ballwin, MO salary details

$13

$24

$37

How much do full stack engineer intern jobs pay per hour?

As of Sep 7, 2026, the average hourly pay for full stack engineer intern in Ballwin, MO is $24.72, according to ZipRecruiter salary data. Most workers in this role earn between $20.10 and $28.03 per hour, depending on experience, location, and employer.

What is a full stack engineer intern?

Full Stack Engineer Interns are students or recent graduates who assist in developing both the front-end and back-end components of web applications. They work under the guidance of experienced engineers to gain hands-on experience with programming languages, frameworks, and tools used throughout the software development lifecycle. Their responsibilities often include writing code, testing applications, fixing bugs, and collaborating with teams to deliver functional software. Through this internship, they develop practical skills and a deeper understanding of how web systems work end-to-end.

What are the key skills and qualifications needed to thrive as a full stack engineer intern?

To thrive as a Full Stack Engineer Intern, you need a solid understanding of programming languages like JavaScript, HTML, CSS, and at least one backend language, often supported by coursework or relevant project experience. Familiarity with frameworks such as React or Angular, backend systems like Node.js or Django, version control (Git), and basic database management is typically expected. Strong problem-solving skills, eagerness to learn, and effective communication help interns stand out in fast-paced development teams. These skills and qualities are essential for contributing to real-world projects, collaborating effectively, and accelerating professional growth in a technical environment.

What types of projects and technologies can I expect to work with as a full stack engineer intern?

As a Full Stack Engineer Intern, you can expect to work on a variety of projects ranging from building user interfaces with front-end frameworks like React or Angular to developing backend services using technologies such as Node.js, Python, or Java. Interns often assist with integrating APIs, database management, and testing features in both development and production environments. You'll likely collaborate closely with designers, product managers, and other developers, gaining exposure to the complete software development lifecycle. This hands-on experience is designed to help you build practical skills and contribute meaningful code to real applications.

What is the difference between Full Stack Engineer Intern vs Software Developer Intern?

AspectFull Stack Engineer InternSoftware Developer Intern
Required CredentialsTypically pursuing or recently completed a degree in Computer Science or related fieldTypically pursuing or recently completed a degree in Computer Science or related field
Work EnvironmentHands-on experience with both front-end and back-end development in a team settingFocus on coding, debugging, and developing software applications, often in a specific area
Employer & Industry UsageTech companies, startups, and organizations seeking versatile interns with full-stack skills

The Full Stack Engineer Intern role involves working across both front-end and back-end technologies, providing a broad development experience. In contrast, a Software Developer Intern may focus more narrowly on specific software components or applications. Both roles are valuable for gaining industry experience, but the Full Stack Engineer Intern position offers a more comprehensive view of the entire development process.

What cities near Ballwin, MO are hiring for Full Stack Engineer Intern jobs?

Cities near Ballwin, MO with the most Full Stack Engineer Intern job openings:

Full Stack Engineer Intern jobs near you
Infographic showing various Full Stack Engineer Intern job openings in Ballwin, MO as of August 2026, with employment types broken down into 72% Full Time, and 28% Contract. Highlights an 100% In-person job distribution, with an average salary of $51,409 per year, or $24.7 per hour.

Full Stack Developer

CACI

Saint Louis, MO • On-site

$90K - $189K/yr

Full-time

Medical, Retirement, PTO

Posted 9 days ago

Job description

Job Title: Full Stack Developer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: None Type of Travel: None * * * The Opportunity: CACI is seeking a highly skilled Senior Full Stack Developer to join our development team. In this role, you will be responsible for designing, developing, and maintaining sophisticated web applications that support corporate operations at the National Geospatial-Intelligence Agency. You will work in a collaborative environment, leveraging modern frameworks and cloud technologies to deliver robust, scalable, and secure solutions.

This is an opportunity to contribute to high-impact projects. Responsibilities: Development: Design and implement responsive, high-performance front-end architectures using Angular. Back-End: Develop and optimize server-side logic and integrate complex data storage solutions using JavaScript or TypeScript.

Architecture: Contribute to the overall system architecture, ensuring scalability, security, and maintainability. Collaboration: Work closely with cross-functional teams, including product managers and security specialists, to define requirements. Mentorship: Provide technical leadership and guidance to junior developers through code reviews and best practices.

Security: Ensure all development adheres to strict security protocols and DoW/IC standards Qualifications: Required: Active Top Secret Security clearance or higher 7+ years experience in full-stack web development. Expertise in Angular (v2+) and modern TypeScript development. Proficiency in HTML5, CSS3, and responsive design principles.

Experience with RESTful API design and integration. Strong understanding of Software Development Life Cycle (SDLC) in a secure environment. Desired: Experience with MarkLogic or other NoSQL database technologies.

Working knowledge of AWS (Amazon Web Services) cloud infrastructure. Experience with DevOps practices and CI/CD pipelines (e.g., Jenkins, GitLab CI). Familiarity with containerization technologies like Docker and Kubernetes

- 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: $90,300-$189,600 CACI is an 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.

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