Full-Stack GCP Application Engineer

US citizenship is required due to federal customer clearance / background investigation requirements. Candidates who are not US citizens cannot be considered for this role. Lanthos is hiring a full\-stack application engineer to build secure, accessible web applications and dashboards on Google Cloud for public\-sector AI and workflow programs. **Responsibilities:** * Build React or Next.js applications hosted on Cloud Run. * Implement authenticated user experiences, role\-based views, session management, input validation, error handling, and async response patterns. * Build research\-agent interfaces with query submission, progress indicators, result views, source/citation panels, and contextual data displays. * Build operational and executive dashboards for workflow status, ownership, deadlines, risk indicators, and workload views. * Support Section 508 accessibility validation, UAT, cross\-browser testing, and production rollout. **Required qualifications:** * 4\+ years full\-stack engineering experience. * Strong React, TypeScript/JavaScript, API integration, and frontend architecture skills. * Experience building secure web apps with SSO/OIDC/SAML, RBAC, and backend API integration. * Experience deploying applications to GCP, Cloud Run, or comparable container/serverless platforms. * Strong attention to accessibility, usability, and production quality. **Nice to have:** * Next.js, Cloud Run, Firebase/Auth, Apigee, Vertex AI, dashboard/data visualization, Section 508, FedRAMP, or public\-sector application experience. Pay: $90\.00 \- $150\.00 per hour Work Location: Remote