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Senior Software Engineer (Fullstack)

Madrid, ES💼 Full-time🗓 2026-06-04 → 2026-09-11

Core

Design and implement fast, intuitive, and engaging AI product experiences that make AI feel natural and useful for millions of users.

Role type

Senior Fullstack Software Engineer (AI Consumer Products)

Builds

Scalable backend services, production-grade frontends, and AI-driven product features

Domain

Consumer AI / Large Language Models / Fullstack Engineering

Deliverable

production ML models | product features

Required skills

Python, TypeScript, Next.js, AI agent orchestration, LLM integration, system architecture, observability, code review

Preferred skills

LangGraph, LangChain, AI-assisted development tools

Technologies

Python, TypeScript, Next.js, LangGraph, LangChain

Responsibilities

Design and implement AI product experiences; Build and maintain backend services and APIs; Architect scalable backend systems for real-time AI interactions; Prototype quickly and iterate based on user feedback; Collaborate cross-functionally with AI, product, and design teams; Mentor engineers and establish best practices

Seniority

Senior, hands-on IC with mentorship

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