Principal Software Engineer
Position Title: Principal Software Engineer
Location: Remote with travel to customer sites
Clearance Requirement: Top Secret/SCI required
Employment Type: Full-Time
Research Innovations , Inc. (RII) is breaking through the big, slow, status quo with transformative technology that fundamentally changes and improves the world. We develop cutting-edge software for all levels of the government and military. Using agile development practices and user-centered design, we create innovative software solutions for complex real-world problems.
We are looking for a committed Principal Software Engineer to join the MAX Electromagnetic Warfare (EW) product team within our Tactical Command & Control line of business. You will help build the EW and spectrum operations capabilities of the MAX platform — modeling complex electromagnetic environments, integrating physics-based propagation models, and turning messy real-world data into workflows warfighters actually use. Get s#it done.
This position requires an active US Top Secret/SCI clearance.
WHAT YOU WILL BE DOING
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Design and develop EW and electromagnetic spectrum operations capabilities for the MAX platform, from data model to user-facing workflow
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Model complex operational domains in code: design schemas and data models that unify disparate, messy data sources into coherent, trustworthy representations
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Integrate and validate physics-based RF propagation models, terrain and clutter data, and third-party services via APIs
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Build and maintain integrations with external C2 systems, sensor feeds, and telemetry sources
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Develop with modern AI-assisted and agentic coding workflows: shape the problem, author and review detailed implementation plans, direct AI coding agents, and own the quality and correctness of what ships
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Collaborate through plan reviews and merge requests in a highly collaborative, no-egos team culture
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Demo working software to customers, translate their feedback into priorities, and iterate quickly
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Support deployment of the product across cloud, on-premises, and edge/DDIL environments
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Contribute to software design and test documentation, and mentor teammates in your areas of depth
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Continuously challenge yourself to become a better software developer
WHAT YOU HAVE DONE
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BS degree in a related technical field and 5+ years of relevant professional experience (an advanced technical degree may substitute for a portion of the experience)
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Modeled complex real-world domains in software: schema and data model design, entity resolution across disparate sources, and API-based data integration
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Professional experience in Python, C#, Java, or similar languages, and with SQL-based persistence solutions
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Experience integrating data from third-party applications and services via REST APIs
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Hands-on experience with AI-assisted or agentic software development, including reviewing and verifying AI-generated work
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Disciplined testing practices: unit testing, test-driven development, and validation of your own work
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Experience working in containers (Docker) and familiarity with Kubernetes-based deployment
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Experience demoing software to customers and translating user needs into technical requirements
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Ability to multitask, self-assign work, and function in a dynamic, fast-paced development environment
- Experience mentoring other developers
- Excellent verbal and written skills
EVEN BETTER
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Experience with electromagnetic spectrum operations: spectrum management, RF propagation modeling, link analysis, or EW planning workflows
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Experience supporting DoD customers, including on-site engagement with program offices or operational units
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Familiarity with terrain, elevation, and land cover data sources (DTED, GMTED, LiDAR-derived datasets)
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Experience with data across classification levels, cross-domain solutions, and build-low/ship-high development
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Experience with Tactical Assault Kit (TAK) or integrating w