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# Senior Backend Engineer - Payments (Php/Java) & Security

- **Company:** Payxpert
- **Location:** Madrid, Spain
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), PHP (Programming Language), Cyber Security, Backend, Kotlin
- **Published:** September 20, 2026
- **Apply:** https://www.buscojobs.com.es/senior-backend-engineer-payments-php-java-security-en-madrid-ID-371893361

## About the Role

The role demands high autonomy, strong security focus, and experience in payments or fintech.
Fluency in English is required; Spanish or French are a plus.
#J-*****-Ljbffr

## Description

PayXpert, a payments pioneer, seeks a Senior Backend Developer to design, build, and evolve backend services across PHP and Java/Kotlin stacks.You will own core components, ensure secure transaction flows and collaborate across product, QA, and release teams in an agile environment.The role demands high autonomy, strong security focus, and experience in payments or fintech.Fluency in English is required; Spanish or French are a plus.#J-*****-Ljbffr