Senior Software Engineer

Concentric Recruitment • Spain, catalonia, Spain • Posted June 04, 2026

Location Spain, catalonia

Job Type Full-time

Category Other-General

Posted June 04, 2026

Role: Senior / Principal Software Engineer   
Sector: Artificial Intelligence  
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

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