Tech Lead / Full Stack Engineer

Location: RemoteClearance: Active DoD Secret clearance requiredEmployment Type: Full-Time (W-2)Citizenship: U.S. Citizenship requiredIntelliTech 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 ResponsibilitiesTechnical LeadershipOwn overall application architecture and drive technical decisions across frontend, backend, simulation, and data tiersLead sprint planning, backlog refinement, and technical prioritization in coordination with project leadershipConduct code reviews and enforce standards for code quality, testing, documentation, and maintainabilityServe as a primary technical point of contact for Government engineering and product stakeholdersTranslate Government requirements and mission context into actionable engineering tasks and solution designsBackend DevelopmentModernize and extend a Python FastAPI backend serving as the application control plane for data operations, scenario lifecycle management, and AI orchestrationDecouple the SimPy discrete-event simulation engine from the API tier into independently scalable worker containersDesign and implement run request queueing, worker orchestration, and result persistence patternsBuild governed ingestion workflows, including validation services for schema enforcement, referential integrity, circular reference detection, and business-rule validation with actionable user-facing feedbackImplement dataset versioning, lineage tracking, and run-level traceability linking scenario outputs to explicit input versionsBuild version-bounded caching strategies for validated inputs, run-ready artifacts, and comparison outputsImplement deterministic scenario comparison logic and brief-ready report generationFrontend DevelopmentExtend and maintain a React / TypeScript frontend using Material UI, Recharts, and data-grid-based visualizationsBuild user workflows for AI-assisted scenario Q&A, guided scenario generation with analyst review and approval, and brief-ready output presentationImplement upload validation feedback, dataset versioning interfaces, and scenario comparison viewsIntegrate SSO and DoD CAC-compatible authentication flows into the frontend as required by the target environmentAI IntegrationDesign and implement the AI integration layer brokering access between the application backend and a Government-approved hosted LLM endpointBuild scoped retrieval logic constraining AI context to approved run artifacts, simulation outputs, and post-processed metricsImplement guided scenario generation that converts user intent into structured JSON configurations for analyst review before executionImplement function-calling and tool-use patterns that enable the LLM to query live scenario data through backend APIsEnsure audit logging of AI interactions and enforcement of role-based access controlsIntegration and QualityInstrument the application pipeline to capture timing, bottleneck, concurrency, and throughput metricsDesign and execute integration testing across frontend, backend, database, object storage, cache, and worker servicesBenchmark throughput and performance improvements against established baselinesRequired QualificationsBachelor’s degree in Computer Science, Data Science, Engineering, Information Systems, or a related technical discipline and 8+ years of relevant experience; or Master’s degree in a related field and 6+ years of relevant experienceActive DoD Secret clearance8+ years of professional software engineering experienceStrong hands-on Python backend development experience, including FastAPI or Flask, asynchronous patterns, REST API design, and data processing with Pandas and NumPyStrong React / TypeScript frontend development experience, including React 18+, component architecture, state management, and modern UI frameworks such as Material UIExperience with containerized architectures, including Docker and orchestration concepts such as Kubernetes, ECS, or EKSExperience with MongoDB or other document-oriented databases, including schema design, query optimization, and async driversExperience integrating LLM APIs such as OpenAI, Anthropic, or equivalent platforms, including function calling, tool-use patterns, and prompt engineering for structured outputsExperience building and maintaining production-grade applications in cloud-based environments, preferably AWSExperience leading technical execution across multiple application layers in a complex engineering environmentExperience supporting DoD or federal Government programsStrong communication skills and the ability to work directly with technical and non-technical stakeholdersPreferred QualificationsExperience with SimPy or other discrete-event simulation frameworksExperience with defense supply chain, logistics, manufacturing, or industrial base mission domainsExperience leading small engineering teams on Agile Government contractsExperience with Amazon DocumentDB, Redis / ElastiCache, Amazon S3, and Army or AWS cloud environmentsFamiliarity with munitions industrial base concepts such as BOM structures, production lines, CAGE codes, and surge planningExperience building decision-support, simulation, or analytics applications for Government analystsExperience with Terraform, Helm, CI/CD pipelines, and production container deployment patternsPrior experience supporting Army logistics, manufacturing, or modernization programsTech StackBackend: Python 3.11+, FastAPI, SimPy, Pandas, NumPy, Pandera, Motor (async MongoDB)Frontend: React, TypeScript, Material UI, Zustand, Recharts, MUI X Data GridDatabase: MongoDB / Amazon DocumentDBCache: Redis / Amazon ElastiCacheStorage: Amazon S3AI Integration: OpenAI API or Government-approved hosted LLM endpoint, function calling, scoped retrievalInfrastructure: Docker, EKS / ECS, Helm, TerraformCI/CD: GitLab CI, GitHub Actions, or Government-approved pipeline toolingAuthentication: CAC / SSO via SAML or OIDCInterview ProcessVideo interview required and may include a technical assessment.Candidates should be prepared to discuss:systems or applications they have built from scratch across backend and frontend layerstheir experience leading architecture and technical implementation decisionshow they have modernized or productionized prototype applicationstheir experience with Python, React, containerized deployment, and cloud-native architecturestheir experience integrating AI capabilities into operational applicationstheir work with large-scale or mission-critical Government systemsCompensation And BenefitsIntelliTech is committed to fair and equitable compensation practices. Actual compensation packages are based on several factors unique to each candidate, including but not limited to job-related skills, depth of experience, relevant certifications and training, and specific work location. Based on these factors, IntelliTech utilizes the full width of the salary range.IntelliTech provides a comprehensive benefits package designed to support employees’ well-being and professional growth, including health insurance, dental insurance, and vision insurance, a 401(k), paid time off, professional development opportunities, and flexible work arrangements to support work-life balance.About IntelliTechIntelliTech is a dynamic and forward-thinking small business specializing in Full Stack Engineering, Data Analytics, Cloud Solutions, and DevSecOps services. Our mission is to empower government and commercial clients to solve complex technical challenges through practical, innovative, and mission-focused engineering solutions.Equal Opportunity EmployerAt IntelliTech, we are committed to building a diverse and inclusive workplace. We believe that a variety of perspectives and backgrounds leads to stronger teams and better solutions. IntelliTech is an Equal Opportunity Employer and does not discriminate on the basis of race, religion, gender, age, disability, or veteran status. We encourage all qualified candidates to apply.Powered by JazzHRrDMlp8iMfx