Full-Stack Engineer, Agentic Development

Expression is hiring a Full Stack Engineer to develop and deliver software across federal mission systems using AI coding agents as a primary development tool. The role owns features from planning through deployment, with responsibilities spanning application development, agent-generated code review and testing, AWS deployment, security, and collaboration with technical and product teams. Responsibilities Develop features across the application stack, including React interfaces, Node.js and Python services, REST APIs, and relational and MongoDB data modelsOwn assigned features from requirements clarification and implementation through testing, deployment, and documentationWrite and maintain unit, integration, and end-to-end testsTroubleshoot issues across application layers, identify root causes, and implement fixes with tests or monitoring to prevent recurrenceDirect AI coding agents through clear task descriptions, implementation plans, and acceptance criteriaReview, test, and correc