Job Description

Role: Senior / Principal Software Engineer

Job Type: Full-Time

Contract Type: Direct employment with our client

Location: Remote in Spain

Language: Fluent Spanish is required

Visa sponsorship is not available for this role

Our partner is building next-generation AI-driven communication products that help businesses automate customer interactions, improve operational efficiency and generate actionable insights in real time.

They are now looking for a Senior/ Principal Software Engineer to help scale the platform behind their voice agents, owning features end-to-end across their TypeScript / Python stack and working on AI pipelines, LLM orchestration, STT/TTS, prompt workflows and real-time systems.

What we are looking for

+7 years of production experience with modern web stack
Experience with AI coding agents such as Claude Code, Cursor or Codex
Real Product mindset and ability to work