> Markdown version of [/jobs/ext/2665758-senior-ai-software-engineer-real-time-voice-llm-platforms](https://www.wearedevelopers.com/jobs/ext/2665758-senior-ai-software-engineer-real-time-voice-llm-platforms). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

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# Senior Ai Software Engineer - Real-Time Voice & Llm Platforms

- **Company:** Solicitante De Empleo
- **Location:** Barcelona, Spain
- **Salary:** €100,000.0
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Amazon Web Services, Continuous Integration, Cursor (Graphical User Interface Elements), Python (Programming Language), SQL Databases, Systems Integration, TypeScript, AI Infrastructure, Real Time Systems, ReactJS, Large Language Models, Multi-Agent Systems, Machine Learning Operations, Docker
- **Published:** August 31, 2026
- **Apply:** https://www.recruit.net/job/ai-software-engineer-real-time-jobs/B613F142FE4DB7FF

## About the Role

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 Codex
 * Real Product mindset and ability to work autonomously
 * Comfortable with Docker, SQL, testing and scalable architecture
 * Fluent Spanish and English

Nice to have

 * Experience with LLMs, STT/TTS, OpenAI, Whisper, ElevenLabs or Deepgram
 * Experience with LangChain, LangGraph or similar AI orchestration tools
 * AWS/GCP, CI/CD and observability experience
 * Startup or early-stage product company experience
 * PRevious experince leading a team or acting as a principal xqbhyrx

## Description

* Building scalable APIs and services for real-time voice interactions
 * Developing product features end-to-end with React, TypeScript and AI infrastructure
 * Integrating LLM, STT and TTS workflows into production
 * Working on agentic and multi-agent workflows
 * Improving architecture, observability, testing and engineering quality
 * Working directly with the founders and senior team to shape the platform


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