Software Architect - Modeling & Simulation SME

SimIS, Inc. is seeking a Senior Software Architect - Modeling & Simulation SME to lead the technical design and development of NATO’s Next Generation M&S capability. This critical role combines advanced software architecture expertise with deep knowledge of military simulation systems to create the future of NATO’s warfare simulation infrastructure.

The successful candidate will architect distributed simulation environments that operate seamlessly from strategic planning down to tactical execution, enabling NATO forces to conduct complex multi-domain operations analysis and training. You will be the technical POC who helps transforms operational requirements into scalable, interoperable systems using cutting-edge distributed computing technologies and industry-standard protocols like DIS and HLA. This position requires a unique blend of technical leadership and domain expertise. You’ll design high-level architectures that integrate legacy systems while building next-generation capabilities, ensuring real-time data exchange across global NATO commands. Your work will directly impact NATO’s ability to plan, execute, and analyze military operations through advanced simulation technologies.

The candidate performs the following specific assignments:

• Design and implement high-level architecture for NATO’s next-generation M&S systems
• Lead DIS protocol implementation and ensure compliance with IEEE standards
• Architect distributed simulation environments supporting multi-location exercises
• Develop software components for real-time simulation interaction and data exchange
• Create technical specifications for system interfaces and integration points
• Design scalable architectures supporting political-to-tactical level simulations
• Implement middleware solutions for simulation interoperability
• Lead technical reviews of architecture designs and code implementations
• Develop APIs for connecting legacy systems (JCTS, JTLS) to new architecture
• Optimize network performance for distributed simulation environments
• Design data synchronization mechanisms for distributed databases
• Create architectural patterns for turn-based and real-time simulation modes

Technical Architecture Focus:

• Define enterprise-level M&S architecture standards
• Implement publish-subscribe patterns for distributed event handling
• Design fault-tolerant systems for mission-critical simulations
• Develop microservices architecture for modular simulation components
• Create containerized deployment strategies for cloud and on-premise environments

• At least 5 years developing distributed simulation systems using DIS/HLA protocols
• At least 3 years designing high-level system architectures for military simulation environments
• Proven experience architecting systems that support real-time interaction between multiple simulation nodes
• Experience developing APIs and interfaces for simulation interoperability
• Strong background in performance optimization for large-scale distributed systems
• Experience with both mission-level and campaign-level simulation development
• BS in Computer Science, Software Engineering, Computer Engineering, or related discipline.

Experience Desired:

• Experience with NATO STANAG standards for simulation
• Knowledge of military C4ISR systems integration
• Familiarity with game engines adapted for military simulation
• Cloud architecture experience (AWS, Azure)
• DevOps and CI/CD pipeline experience
• PMP or technical architecture certifications

Special Skills/Knowledge/Training Required/Desired:

• Strong analytical and problem-solving skills
• Excellent written and verbal communication abilities
• Expert knowledge of Distributed Interactive Simulation (DIS) protocol and High Level Architecture (HLA) standards
• Proficiency in multiple programming languages (C++, Java, Python)
• Experience with simulation frameworks and middleware
• Strong understanding of network protocols and distributed computing
• Database design and data architecture experience
• Ability to manage multiple projects and priorities simultaneously
• Strong attention to detail and technical accuracy

• Medical, Dental, and Vision
• Short-Term Disability (at no cost to you) & Long-Term Disability
• Life Insurance
• 401(k) Savings Plan
• Flex Spending Accounts
• Tuition Assistance Program
• Professional Development
• Paid Time Off (PTO)
• 11 Federal Holidays each year

SimIS, Inc. is an EOE / M / F / Disability / VET / Drug Free Employer

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Who We Are: Founded in 2007, SimIS Inc. is an innovative information technology solution Veteran Owned Small Business (VOSB) that models future environments, requirements, and capabilities, and then secures the enterprise from internal and external threats compliant with Federal, State, and industry standard governance to ensure client mission success. Our performance standard is “excellence,” with an outcomes-based, quality focus in our services and products, guided by our core values of honesty (in word and deed), relationships (confidence and trust with clients and partners), teamwork (shared goals, mission, and purpose), loyalty (allegiance to our client and team), and importance of others (work and win as a team).