This role is open to candidates in US, Europe, Canada and LATAM**About The RoleWe are building a healthcare-focused AI platform that automates patient engagement through conversational workflows (SMS and voice). At the core is an LLM-powered chatbot that operates as a multi-phase system combining structured data extraction, reasoning, message generation, and system-triggered actions.We are looking for an AI Engineer to build and scale these conversational agents in production.Tech StackBackend prioritiesStrong experience needed in: Node.Js, Express, TypeScript, PostgreSQL, RedisFamiliarity with these is ideal: Prisma (or other ORM experience), tRPC, HIPAA complianceFrontend prioritiesStrong experience needed in: React, TypeScript, Redux OR Zustand OR other state management librariesFamiliarity with these is ideal: Tailwind, AWS CognitoDevOps prioritiesStrong experience needed in: AWS, TerraformFamiliarity with these is adecuado: Azure, HIPAA-compliant environmentsAI prioritiesStrong experience with: building LLM-based features, AI chatbots, and conversational agentsExperience with: multi-step or agentic workflows, prompt design,



structured outputsChatbot Architecture Context4-phase workflow: analysis, decisioning, message composition, system executionRedis and BullMQ for async job orchestrationVitest used for testing and evalsHandlebars used for prompt and message templatingTelemetry used to continuously improve system performanceWhat You’ll DoBuild and improve LLM-driven conversational agentsDesign prompt strategies and decision logicIntegrate AI with backend systems, queues, and APIsHandle complex edge cases across conversation flowsOptimize performance, reliability, and cost of AI systemsUse telemetry and testing feedback to improve outputsWhat We’re Looking ForMid to senior level, senior preferredStrong experience building AI chatbots or LLM-based systemsStrong backend engineering experienceAbility to work independently and take ownershipStrong English communication skills (written and verbal), requiredEngagement DetailsType: Full-timeDuration: Long-term 6 month contract (initial)Location: RemoteCollaboration: Must overlap at least 5 hours with U.S. Pacific time#J-18808-Ljbffr

📌 Ai Engineer - Full Stack (Conversational Systems) Latam, Europe, North America (Zaragoza)
🏢 Braintrust
📍 Zaragoza