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# Senior Backend Engineer - Ai-Powered Saas (Equity)

- **Company:** Longtail Technologies
- **Location:** Madrid, Spain
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Software as a Service, Databases, Standard Sql, SQL Databases, Backend, Front End Software Development
- **Published:** September 19, 2026
- **Apply:** https://www.buscojobs.com.es/senior-backend-engineer-ai-powered-saas-equity-en-madrid-ID-370482920

## About the Role

The role demands 7+ years of engineering experience, production SaaS expertise, and strong API, database, and SQL skills.
#J-*****-Ljbffr

## Description

Longtail Technologies is seeking a Senior Product Engineer: Full-stack with 80% backend and 20% frontend to build and evolve our conversational analytics and intelligent alerting platform.You will own features end to end, from customer problem to production, and work on AI-native software customers can trust.The role demands 7+ years of engineering experience, production SaaS expertise, and strong API, database, and SQL skills.#J-*****-Ljbffr


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