Senior Full Stack Engineer - Remote

Circadence Corporation • United States, United States • 1d ago

Job Title: Senior Full Stack Engineer - RangeGPT Platform Location: Remote (Boulder/Denver, CO preferred) Department: Engineering Reports to: Chief Engineer Compensation: $150,000-$180,000, commensurate with experience Benefits: Comprehensive benefits including medical, dental, and vision insurance, 401(k) with company match, HSA/FSA options, life and disability insurance, unlimited PTO, and paid holidays. Job Summary Circadence is hiring a Senior Full Stack Engineer to join the team behind RangeGPT-an intelligent cyber range design and analysis platform that combines a WYSIWYG interface with AI-powered automation. RangeGPT enables cybersecurity professionals to visually design and deploy realistic training environments, while leveraging LLM-based agents for network topology/infrastructure generation, scenario guidance, and range analysis. As a full stack engineer, you'll contribute across backend services, API design, and a React-based frontend-helping build a 0-1 new product leveraging the latest technologies. You'll thrive in this role if you enjoy designing clean interfaces, building robust backend services, and integrating cutting-edge capabilities like tool-calling agents and real-time infrastructure orchestration. Key Responsibilities Develop and maintain full stack features using Python (Django/FastAPI) and React + TypeScript Design scalable APIs and orchestration logic that integrate LLM agents, retrieval systems (RAG), and infrastructure generation pipelines Collaborate closely with AI and platform engineers to expose agentic capabilities via intuitive UI/UX patterns Build backend systems to support scenario authoring, misconfiguration detection, and real-time validation workflows Contribute to the canvas-based WYSIWYG editor, helping users bridge natural language input with visual infrastructure diagrams and deployment artifacts Participate in architecture and system design discussions, with an eye toward performance, maintainability, and extensibility Support DevOps and local development setups (Docker, Kubernetes, Azure DevOps), CI/CD pipelines, and observability instrumentation Required Qualifications 7+ years of experience in full stack or backend-heavy roles Strong proficiency in Python with production use of Django and/or FastAPI Professional experience with React + TypeScript, including component design and frontend state management Deep familiarity with REST API design and service-oriented architecture Experience working in containerized environments (Docker, Kubernetes) and implementing modern CI/CD workflows Solid knowledge of relational data modeling and PostgreSQL database management. Exposure to LLM integration, including function/tool calling, @context injection, or orchestration systems Strong debugging, testing, and system design skills in production-grade environments Preferred Qualifications Experience building canvas-based editors, graph tools, or low-code platforms Familiarity with LangGraph, semantic retrieval frameworks (e.g., Weaviate, PGVector), and RAG pipelines Background in cybersecurity, simulation tooling, or infrastructure-as-code Knowledge of MCP (Model Context Protocol) or other cyber range orchestration frameworks Experience with XYFlow/ReactFlow or similar graph visualization libraries Why Circadence? At Circadence, you'll help shape the future of cybersecurity training by working with a passionate team building a platform used to train national security professionals, enterprise defenders, and future cyber leaders. We value innovation, autonomy, and purpose-join a fast-growing team of top-tier AI researchers, software engineers, and curriculum designers to change the world of cybersecurity training. Circadence Corporation is proud to be an equal opportunity employer. We will not discriminate against any applicant or employee based on age, race, color, creed, religion, sex, sexual orientation, gender, gender identity or expression, medical condition, national origin, ancestry, citizenship, marital status, or civil partnership/union status, physical or mental disability, pregnancy, childbirth, genetic information, military and veteran status, or any other basis prohibited by applicable federal, state or local law. * https://www.eeoc.gov/know-your-rights-workplace-discrimination-illegal

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