Software Engineer – Full-Stack / Simulation with Security Clearance

Obsidian Solutions Group; Fredericksburg (VA); On-site; USD 112,000 - 146,000; Full time

Job summary

Obsidian Solutions Group’s Obsidian Labs is seeking a Software Engineer to join a multidisciplinary team building data-centric, distributed simulation environments that integrate AR/VR, AI/ML, and secure real-time data pipelines for training and mission support. On-site in Fredericksburg, VA.

You will work from edge to cloud, turning sensor data into clear, web-based visualizations while ensuring security, performance, and scalability across backend APIs and Unity3D-based simulation environments.

Qualifications

• 4+ years of professional software development experience.
• Proficiency in Python, JavaScript/TypeScript, or C# and web apps with databases.
• Knowledge of secure, real-time data communication, including encryption TLS/AES.
• Experience with web-based visualization libraries; GIS/met APIs for real-time spatial mapping.
• Experience with 3D applications or game engines (Unity3D).
• Experience writing automated tests and ensuring software quality.
• Interest in AI/ML and integrating these into simulation pipelines.

Responsibilities

• Develop Web-Based Visualizations: Build high-performance dashboards and interactive tools to visualize complex sensor data.
• Architect Secure Data Pipelines: Design end-to-end secure messaging across edge devices and cloud.
• Build Full-Stack Applications: Develop backend APIs and frontend interfaces for simulation ecosystems.
• Develop Simulation Environments: Contribute to interactive 3D environments using game engines (Unity3D preferred).
• Ensure Security & Quality: Implement encryption, TLS, access controls, and automated tests.
• Collaborate on R&D: Work with hardware teams to prototype capabilities for defense and rapid-innovation contracts.

Skills

Python

JavaScript/TypeScript

C#

Web applications

Databases

Security

TLS

AES

Data visualization

NetCDF

HDF5

WRF

GIS APIs

Unity3D

Testing

AI/ML

Adaptability

R&D

Tools

Unity3D

Android Studio

ATAK

AWS GovCloud

Job description

Location: Fredericksburg, VA (On-site) Citizenship: U.S. Citizenship Required Clearance: Ability to obtain a clearance up to Top Secret if needed. Obsidian Labs, the advanced research, prototyping, and rapid experimentation arm of Obsidian Solutions Group, is seeking a Software Engineer to join our multidisciplinary team. We build data-centric, distributed simulation environments that go beyond traditional software. In this role, you will help us integrate 3D immersive technologies (AR/VR), AI/ML, and secure real-time data pipelines into unified platforms used for comprehensive training, operational planning, and live mission support. We are looking for someone who can help us take complex sensor data—from micro-controllers at the tactical edge to massive datasets in the cloud—and turn it into clear, actionable, web-based visualizations that empower users in both training exercises and real-world operational environments.

Requirements Responsibilities

• * Develop Web-Based Visualizations: Build intuitive, high-performance dashboards and interactive web tools to visualize complex datasets, including atmospheric and environmental sensor data.
• Architect Secure Data Pipelines: Design and implement end-to-end secure messaging solutions to move data reliably between local tactical devices (including micro-controllers and mobile) and cloud-based infrastructure.
• Build Full-Stack Applications: Develop and maintain the backend APIs and frontend interfaces that serve as the control centers for our simulation ecosystems.
• Develop Simulation Environments: Contribute to the creation of interactive, collaborative 3D environments using game engines (Unity3D preferred).
• Ensure Security & Quality: Implement robust encryption (e.g., AES-256), secure network protocols (TLS), and access controls; write automated tests and participate in code reviews to ensure our software is resilient and reliable.
• Collaborate on R&D: Work closely with hardware teams and subject matter experts to prototype new capabilities for defense and rapid-innovation contracts.

Required Skills and Experience

* Experience: 4+ years of professional software development experience.

• Core Full-Stack Skills: Strong programming skills in modern languages (such as Python, JavaScript/TypeScript, or C#) and experience building web applications backed by databases.
• Networking & Security: A solid understanding of secure, real-time data communication, including encryption standards (AES, TLS), and secure networking principles across the entire lifecycle, from edge devices to the cloud.
• Visualization & Data: Experience with web-based data visualization libraries and a knack for making complex technical datasets intuitive. Preferred experience includes working with scientific data formats (e.g., NetCDF, HDF5), weather/environmental modeling outputs (e.g., WRF), and consuming GIS or meteorological APIs for real-time spatial mapping.
• Game Engine Exposure: Professional or strong project experience working with 3D applications, digital twins, or game engines (Unity3D preferred).
• Testing & Quality: Experience writing clean, reliable code and using automated testing frameworks to ensure software quality.
• AI/ML Integration: A proactive interest in AI/ML, with the ability to support the full lifecycle of intelligent solutions—from identifying and sourcing high-quality training data and refining models, to integrating these tools into simulation pipelines to create clear, actionable value for our projects.
• Adaptability & R&D Mindset: A drive to learn new frameworks, tackle unique R&D challenges, and work in an agile, collaborative environment where your ability to solve novel problems is more important than your familiarity with any single legacy tool.

Desired Skills and Experience

* Data Serialization: Experience with Google Protocol Buffers (Protobuf) for efficient, high-speed data exchange.

• Tactical Edge Development: Experience with mobile app development using Android Studio or the Android Team Awareness Kit (ATAK) plugin ecosystem.
• Platform Experience: Experience working across the stack, from firmware/micro-controllers to consumer mobile and cloud environments (AWS GovCloud).
• Defense Networking: Familiarity with defense data protocols (e.g., Cursor-on-Target, DIS, HLA) or geospatial mapping tools.

Physical Requirements and Work Environment

* Normal office and lab environment.

• Occasional work in simulation labs, field testing environments, or training facilities.
• Travel Requirements: Up to 35%

Company Overview

• Obsidian Solutions Group (OSG) is a diversified consulting and technology company providing flexible and responsive solutions to federal, state, and local agencies and organizations. Our core domains are overseas and domestic mission support operations, collection/analysis/identification, and information technology. Obsidian Solutions Group is comprised of strategic and operational personnel who provide its clients deep domain expertise across a comprehensive spectrum of skill sets, allowing mission accomplishment and development of long-term capabilities.
• 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 or ethnic origin, political affiliation, sexual orientation, marital status, disability, genetic information, age, membership in an employee organization, retaliation, parental status, military service, any other non-merit factor, or any other characteristic protected by law.
• 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.
• Salary Description $112,000-$146,000