INTERNSHIP DETAILS

Unity 3D Developer Intern

CompanyObsidian Solutions Group LLC
LocationFredericksburg
Work ModeOn Site
PostedJuly 17, 2026
Internship Information
Core Responsibilities
Develop and maintain interactive simulation applications in Unity across desktop, WebGL, Android, and AR/VR platforms. Integrate real-time data and geospatial information to support immersive training and decision-support tools.
Internship Type
full time
Salary Range
$21 - $30
Company Size
176
Visa Sponsorship
No
Language
English
Working Hours
40 hours
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About The Company
Founded in 2010, OSG is a certified Service-Disabled Veteran-Owned firm that provides IT Transformation & Modernization, Software Development, Data Management & Analytics, and Knowledge-Based Professional Solutions to the DoD and the Intelligence Community. Obsidian finds, adapts, and integrates systems, technologies, and people to exponentially improve the success of your mission.
About the Role

Description

Primary Work Location: Fredericksburg, VA

Must be a U.S Citizen: Yes


Obsidian Labs, the applied innovation, rapid prototyping, and advanced engineering division of Obsidian Solutions Group, is seeking a Unity 3D Developer Intern to support the design and development of immersive simulation environments. This role provides hands-on experience working alongside a multidisciplinary team building next-generation capabilities that integrate game engine technologies, geospatial systems, and real-time data into operationally relevant training and decision-support tools.


The intern will contribute to the development of interactive simulation features supporting Obsidian Labs’ flagship platforms, including VERTEX, enabling advanced Live, Virtual, and Constructive (LVC) training for defense, public safety, and critical infrastructure missions. This is an opportunity to directly support cutting-edge human-machine teaming applications and immersive training systems in a mission-driven environment


Requirements

Responsibilities

  • Develop and maintain interactive simulation applications in Unity for desktop, WebGL, Android, and immersive (AR/VR) platforms. 
  • Integrate real-time data, geospatial information, and external systems into Unity applications.
  • Debug, optimize, and improve application performance across multiple platforms. 
  • Collaborate with software engineers, designers, and subject matter experts to translate mission requirements into technical solutions. 
  • Contribute to technical documentation and development best practices. 


Required Skills and Experience

  • Currently enrolled as a senior or recently graduated with a degree in Computer Science, Software Engineering, or a related technical field. 
  • Experience developing applications in Unity using C#. 
  • Strong understanding of object-oriented programming principles. 
  • Experience debugging, testing, and writing clean, maintainable code. 
  • Familiarity with Git or other version control systems. 
  • Strong problem-solving, communication, and collaboration skills. 
  • Applicants must submit a portfolio, GitHub repository, or demo project that demonstrates Unity development experience. Applications without a portfolio submission will not be considered.


Desired Skills and Experience

  • Experience developing AR/VR applications in Unity. 
  • Experience developing multiplayer or networked Unity applications. 
  • Experience integrating REST APIs, third-party SDKs, or networked services into Unity applications. 
  • Experience with 3D modeling tools (Blender, Maya, or similar) is a plus


Physical Requirements and Work Environment

  • Normal office and lab environment


Travel Requirements

  • N/A


Company Description

Obsidian Solutions Group LLC (OSG) is a fast-growing professional services firm based in Fredericksburg, VA. We create value for our customers by delivering technology-enabled & mission-oriented technical solutions that solve complex problems, protecting people, information, and assets. Our core capabilities are in providing Enterprise IT, Intelligence Analysis, Production & Development and Knowledge-Based Professional Services Solutions that enable the customer’s mission. Obsidian Solutions Group LLC is a service-disabled, veteran-owned small business.


A career at Obsidian Solutions Group means you are able to put your expertise, credentials, and talents to great use working with customers in the DOD and Intelligence Community, while enjoying the excitement of working in a fast-growing organization committed to making a difference for our customers and in our community. Contribute independently and collaboratively alongside our amazing team of doers and thinkers. Obsidian Solutions Group is small enough to offer a family atmosphere yet large enough to deliver a highly competitive compensation package. We hire and retain the best in the industry, offering exceptional benefits that protect the well-being of our employees, their spouses and domestic partners, and their families.


Our corporate philosophy is centered on hiring and retaining employees with the requisite skills, professional experience, personal commitment, and ethical standards necessary to foster a culture of operational excellence necessary to surpass our customer’s expectations.


Disclaimer


The above information on this description has been designed to indicate the general nature and level of work performed by employees within this classification. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities, and qualifications required of employees assigned to this job.


Obsidian Solutions Group is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy and gender identity), national origin, political affiliation, sexual orientation, marital status, disability, genetic information, age, membership in an employee organization, parental status, protected veteran status, and any other non-merit factor, or any other characteristic protected by law.


Key Skills
UnityC#Object-Oriented ProgrammingGitAR/VR DevelopmentWebGLAndroid DevelopmentREST APIs3D ModelingDebuggingTechnical DocumentationNetworked Applications
Categories
SoftwareTechnologyEngineeringGovernment & Public SectorCreative & Media
Benefits
Competitive Compensation PackageHealth Insurance