Fullstack Software Engineer – Internal Agentic AI Platform

• Build infrastructure, interfaces, and applications for Alan’s members, health professionals, and employees
• Develop Hopper, Alan’s internal agentic AI platform and unified productivity tool
• Build product experiences for durable AI sessions across the web, Slack, Linear, and GitHub
• Develop agent runtime and orchestration capabilities, including control plane, harness, model routing, long-running execution, recovery, and isolated sandboxes
• Build secure connectors through an MCP Gateway managing identity, credentials, permissions, confirmations, sensitivity, and audit
• Create reusable skills, automations, artifacts, dashboards, and hosted tools
• Develop evaluations and trust-oriented product experiences exposing tests, screenshots, previews, queries, sources, and tool actions
• Expand Hopper toward reliable AI-agent infrastructure, including managed agent pools, sandboxed environments, autonomous testing, and CI auto-fix
• Own work end to end, from React interactions or API contracts through production reliability
• Collaborate with product and other teams through strong product interaction and distributed ownership
• Deploy daily using the engineering stack of Python/Flask, React, React Native, and PostgreSQL in a monorepo

• 3+ years in full-stack software engineering roles
• Experience building products, internal platforms, frameworks, or infrastructure used by other people
• Depth in at least one relevant area: AI agents and evaluations, developer platforms, high-quality product UX, distributed systems and runtimes, or security and authorization
• Ability to own work end to end, from a React interaction or API contract to reliability in production
• Experience with LLM APIs, agent harnesses, MCP, or AI-assisted coding tools is a strong plus
• Product and platform experience, treating Alaners across engineering, product, data, sales, and operations as customers
• Ability to understand and verify what an AI system did
• Ability to make tradeoffs between speed, reliability, cost, security, and user experience
• Ability to simplify complexity with clear abstractions and maintainable code
• Fluent in English; no French required
• Must be legally eligible to work in France, Belgium, or Spain
• High potential and curiosity

• Remote work flexibility
• In-person collaboration opportunities
• Stimulating environment
• Innovative working method
• Cultural values guiding the approach to work