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Internship Defense Contractor Software Engineer Jobs in Missouri

Omni Federal

Software Engineer

Saint Louis, MO · On-site

Job Title: Software Engineer Location: St. Louis, MO Security Clearance: Active TS/SCI (or SCI ... Originating from the Department of Defense's software factory ecosystem, Omni focuses on Command ...

Boeing

Software Engineer

Maryland Heights, MO

Software Engineer Company: Tapestry - G0G Tapestry Solutions, A Boeing Company, brings over 30 ... With a dedicated team of approximately 500 professionals, we proudly serve 75 defense, commercial ...

Boeing

Software Engineer

Maryland Heights, MO

Software Engineer Company: Tapestry - G0G Tapestry Solutions, A Boeing Company, brings over 30 ... With a dedicated team of approximately 500 professionals, we proudly serve 75 defense, commercial ...

Boeing

Software Engineer

Maryland Heights, MO · On-site

Software Engineer Company: Tapestry - G0G Tapestry Solutions, A Boeing Company, brings over 30 ... With a dedicated team of approximately 500 professionals, we proudly serve 75 defense, commercial ...

Omni Federal

Software Engineer

Saint Louis, MO · On-site

Job Title: Software Engineer Location: St. Louis, MO Security Clearance: Active TS/SCI (or SCI ... Originating from the Department of Defense's software factory ecosystem, Omni focuses on Command ...

Agile Defense

Software Engineer III

Saint Louis, MO

$56 - $75/hr

About Agile Defense At Agile Defense we know that action defines the outcome and new challenges ... Software Engineer III Location: St. Louis, MO Clearance: Secret Required Certification: CompTIA ...

Agile Defense

Software Engineer III

Saint Louis, MO · On-site

$56 - $75/hr

About Agile Defense At Agile Defense we know that action defines the outcome and new challenges ... Software Engineer III Location: St. Louis, MO Clearance: Secret Required Certification: CompTIA ...

DIT-MCO International

Senior Software Engineer

Kansas City, MO · On-site

$119K - $157K/yr

Aerospace, Defense, Automated Test Equipment Citizenship Requirement: U.S. Citizenship Required Senior Software Engineer - Cutting-Edge Technology Build Something That Matters DIT-MCO International ...

New

Omni Federal

Senior Software Engineer

Saint Louis, MO · On-site

$119K - $157K/yr

Senior Software Engineer Location: St. Louis, MO Security Clearance: Active TS/SCI (or SCI ... Originating from the Department of Defense's software factory ecosystem, Omni focuses on Command ...

Boeing

Software Engineer

Hazelwood, MO · On-site

$105K - $147K/yr

Software Engineer Company: Tapestry - G0G Tapestry Solutions, A Boeing Company, brings over 30 ... With a dedicated team of approximately 500 professionals, we proudly serve 75 defense, commercial ...

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Internship Defense Contractor Software Engineer information

What types of projects might I work on as an internship defense contractor software engineer?

As an intern software engineer at a defense contractor, you can expect to work on a variety of projects ranging from developing and testing embedded systems to supporting simulation tools and software used in defense applications. Interns often collaborate with multidisciplinary teams, including engineers, analysts, and project managers, to contribute to real-world solutions such as cybersecurity, radar systems, or mission planning software. The work environment is typically fast-paced and emphasizes security protocols, so you'll also gain experience working within strict compliance and documentation standards. These experiences not only build technical skills but also provide insight into how large, complex projects are managed in the defense industry.

What are the key skills and qualifications needed to thrive as an internship defense contractor software engineer?

To thrive as an Internship Defense Contractor Software Engineer, you should have a strong foundation in computer science principles, programming languages (such as C++ or Java), and be enrolled in or have completed relevant coursework. Familiarity with secure software development practices, integrated development environments (IDEs), and version control systems like Git is typically expected. Strong problem-solving abilities, attention to detail, teamwork, and effective communication are essential soft skills in this setting. These competencies are crucial for developing high-quality, secure software that meets stringent defense industry standards while collaborating effectively in multidisciplinary teams.

What does an internship defense contractor software engineer do?

An Internship Defense Contractor Software Engineer assists in developing, testing, and maintaining software systems for defense-related projects under the guidance of experienced engineers. Interns may work on tasks such as coding, debugging, software integration, and documentation, often focusing on secure and reliable solutions for military or government applications. They typically collaborate with multidisciplinary teams to support the development of technologies like radar systems, communications software, or cybersecurity tools. This role provides valuable hands-on experience in a highly regulated and impactful industry.
What are the most commonly searched types of Defense Contractor Software Engineer jobs in Missouri? The most popular types of Defense Contractor Software Engineer jobs in Missouri are:
What are popular job titles related to Internship Defense Contractor Software Engineer jobs in Missouri? For Internship Defense Contractor Software Engineer jobs in Missouri, the most frequently searched job titles are:
What job categories do people searching Internship Defense Contractor Software Engineer jobs in Missouri look for? The top searched job categories for Internship Defense Contractor Software Engineer jobs in Missouri are:
What cities in Missouri are hiring for Internship Defense Contractor Software Engineer jobs? Cities in Missouri with the most Internship Defense Contractor Software Engineer job openings:
Internship Defense Contractor Software Engineer jobs near you
Infographic showing various Internship Defense Contractor Software Engineer job openings in Missouri as of July 2026, with employment types broken down into 1% Locum Tenens, 79% Full Time, 6% Part Time, and 14% Contract. Highlights an 90% Physical, 1% Hybrid, and 9% Remote job distribution.

Software Developer \u007C Military Veterans \uD83C\uDDFA\uD83C\uDDF8

INflow Federal

Saint Louis, MO

Full-time

Re-posted 25 days ago

Job description

About INflow Federal - founded in 2013, INflow Federal is a mission-driven small business delivering cutting-edge solutions to the Department of War (DoW) and Joint Force operations across 20+ states. Our strength comes from our people - especially the Veterans who make up over 50% of our workforce. Through our Veteran Outreach Program and employee-first culture, we invest deeply in professional growth, well-being, and innovation. Known for our agility, transparency, and integrity, INflow combines real-world experience with emerging technologies like AI/ML to help our customers lead in a rapidly evolving defense landscape. We empower both our employees and mission partners to stay ahead - driving smarter, faster, and more secure outcomes.
 
Job Overview:

INflow Federal is on the lookout for skilled transitioning military personnel and veterans who are passionate about leveraging their expertise in a new capacity within the government contracting sector. We offer an exceptional chance to progress your career as a Full Stack Software Engineer, allowing you to make a substantial contribution to the warfighter mission while expanding your professional horizon.

Established in 2013, INflow Federal is rooted in a culture that values its workforce above all, a philosophy that we believe is the cornerstone of our success. Our unwavering commitment to our team has consistently fueled our ability to deliver outstanding results for our clients. We take immense pride in our homegrown “Veteran Outreach Program,” a testament to our dedication to empowering veterans. This initiative has been a key factor in ensuring that veterans constitute over half of our workforce, a distinction that underscores our adaptability, growth, and forward-looking stance in supporting mission-critical systems and operations.

As a Full Stack Software Engineer at INflow Federal, you will be instrumental in our mission to deliver state-of-the-art technological solutions to our DoD clients, playing a crucial role in the development and deployment of sophisticated software systems. Your expertise will contribute significantly to our strategic goals, facilitating the creation of robust, scalable, and innovative software solutions that enhance our operational capabilities and cybersecurity posture.

Here, your work is more than a job—it's a journey in innovation. With opportunities to work on high-impact projects, access to the latest technologies, and a culture that thrives on creativity and collaboration, INflow Federal is where your expertise can truly make a difference.
Related MOS Codes We're Seeking:
  • Army: 25B, 25C, 25F, 25L, 25N, 25Q, 25S, 25U, 25W, 25X, 94F 
  • USMC (United States Marine Corps): 0600, 0631, 0633, 0639, 0651, 0639, 0681, 0699, 0630, 0605, 0601, 2800, 2813, 2847, 2862, 5900, 5939, 5948, 5970, 5974, 5993
  • USAF (United States Air Force): 1D, 1D7X1A, 1B4X1 - Cyber Warfare Operations, 3D0X2 - Cyber Systems Operations, 3D1X2 - Cyber Transport Systems, 3D1X7 - Cable and Antenna Systems 
  • USN & USCG (United States Navy & United States Coast Guard): ET, ETN, ETV, ETR, Electronics Technician, IT, ITS, Information System Technician, IC, DS, Data Systems Technician 
Various Responsibilities & Requirements:
  • Proficiency in Full Stack Development: Proficiency in front-end and back-end technologies, frameworks, and languages. Familiarity with HTML, CSS, JavaScript, and one or more back-end languages (e.g., Java, Python, Ruby).
  • Cloud Technologies: Knowledge of cloud services, deployment, and management within platforms such as AWS, Azure, or Google Cloud. Ability to leverage cloud capabilities to optimize software solutions.
  • DevOps Practices: Familiarity with continuous integration/continuous deployment (CI/CD) pipelines, automated testing, and deployment strategies to streamline development and enhance collaboration.
  • Version Control Proficiency: Experience with version control systems like Git, understanding branching, merging, and pull request workflows to maintain code quality and collaborative development.
Clearance Requirements :
  • TS/SCI (CI poly required to start)
Other Notes
  • Some travel may be required: Must have valid driver’s license and transportation. This is subject to change at the direction of the customer.
  • If accommodation is needed with your application or the interview process for applicants with disabilities, please contact Human Resources at 703-594-8601.
  • Candidate must have the ability to lift up to 50 lbs.
  • Must have willingness to perform duties not listed in the job description as required by INflow and our customer.
Citizenship Requirements
* Please note that INflow Federal is a defense contractor. Pursuant to our government contracts, candidates must be US Citizens to be considered for employment.
Equal Opportunity Employer 
Diversity and Inclusion
INflow provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.
 
This commitment applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, leaves of absence, compensation, and training. Job applicants and employees are evaluated solely on job-related qualifications and experience.
 
 

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.