Role: Senior / Principal Software Engineer

Job Type: Full-Time

Salary range: to €100.000 + Equity

Contract type: Direct employment with our client

Location: Onsite in Barcelona

Only interested in speaking with candidates who are comfortable working from the office 5 days per week

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

• +5-7 years of production experience with modern web stack
• Experience with AI coding agents such as Claude Code, Cursor or Code...