Tech Lead / Full Stack Engineer

**Location:** Remote **Clearance:** Active DoD Secret clearance required **Employment Type:** Full\-Time (W\-2\) **Citizenship:** U.S. Citizenship required IntelliTech is seeking a **Tech Lead / Full\-Stack Engineer** to serve as the technical anchor on a high\-visibility Department of War program focused on operationalizing a Government\-owned digital twin application for ammunition industrial base readiness. This role will lead the modernization of an existing **Python / React** web application from a single\-host prototype into a production\-aligned, containerized platform deployed in an Army cloud environment. This is a hands\-on technical leadership role. The ideal candidate will write production code daily, own architecture decisions, drive sprint execution, and serve as a primary technical interface with Government stakeholders. This individual will work closely with other senior engineers across data/AI and platform/DevSecOps functions on a lean team where every engineer is expected to ship high\-quality production code. ### **Key Responsibilities** **Technical Leadership** * Own overall application architecture and drive technical decisions across frontend, backend, simulation, and data tiers. * Lead sprint planning, backlog refinement, and technical prioritization in coordination with project leadership. * Conduct code reviews and enforce standards for code quality, testing, documentation, and maintainability. * Serve as a primary technical point of contact for Government engineering and product stakeholders. * Translate Government requirements and mission context into actionable engineering tasks and solution designs. **Backend Development** * Modernize and extend a **Python FastAPI** backend serving as the application control plane for data operations, scenario lifecycle management, and AI orchestration. * Decouple the **SimPy** discrete\-event simulation engine from the API tier into independently scalable worker containers. * Design and implement run request queueing, worker orchestration, and result persistence patterns. * Build governed ingestion workflows, including validation services for schema enforcement, referential integrity, circular reference detection, and business\-rule validation with actionable user\-facing feedback. * Implement dataset versioning, lineage tracking, and run\-level traceability linking scenario outputs to explicit input versions. * Build version\-bounded caching strategies for validated inputs, run\-ready artifacts, and comparison outputs. * Implement deterministic scenario comparison logic and brief\-ready report generation. **Frontend Development** * Extend and maintain a **React / TypeScript** frontend using Material UI, Recharts, and data\-grid\-based visualizations. * Build user workflows for AI\-assisted scenario Q\&A, guided scenario generation with analyst review and approval, and brief\-ready output presentation. * Implement upload validation feedback, dataset versioning in