Senior AI Fullstack Engineer

About the Role: Etera is building the first AI-native corporate travel platform for the GCC market. We are looking for a Senior AI Fullstack Engineer who can own the full stack — from a smooth React Native mobile experience to TypeScript backend services and the AI/LLM layer that powers our multi-agent infrastructure (OPUS Prime).

What You'll Do

• Build and maintain Etera's React Native app (Expo/TypeScript) with multilingual UX (Arabic/English).
• Design and extend the TypeScript backend, including booking APIs, supplier integrations, and webhook orchestration.
• Work directly with Claude (Anthropic API) and the multi-agent OPUS Prime system to build, tune, and extend AI pipelines.
• Take features from spec to production, owning the full lifecycle including architecture, implementation, and deployment.
• Manage Firebase Auth, EAS Build/TestFlight pipelines, and ensure CI/CD hygiene across the stack.

What You Bring

• 5+ years of professional fullstack engineering, with meaningful production work in mobile.
• Proven track record building autonomous agent teams from scratch and keeping them reliable in production.
• Non-negotiable expertise in TypeScript across the entire stack (mobile, backend, and agent tooling).
• Hands-on experience with LLM APIs (Anthropic, OpenAI), prompt engineering, and tool calling.
• Production experience with Mastra (agent orchestration) and solid working knowledge of LangChain.

Benefits

• Greenfield Ownership to shape the architecture from the ground up without legacy technical debt.
• Real AI work using actual multi-agent systems in production.
• Meaningful equity stake and a competitive cash compensation package.
• Remote-first, async-friendly culture allowing you to work from anywhere.