Senior Backend Engineer — Payments Platform, Privacy-First

Visa Hunt; Barcelona; Presencial; EUR 53.000 - 82.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Stock Options

Flexible Working

Health coverage

Office in multiple locations

Descripción de la vacante

Proton is building a better internet where privacy is the default. The Payments team enables revenue generation across Proton’s ecosystem by expanding payment methods and coaching product strategy with cross-functional partners.

You will architect scalable systems, collaborate with product and engineering teams, and ship features across Proton’s product suite while focusing on performance, security, and user experience. Barcelona and other offices offer collaborative spaces.

Formación

• Proven experience with back-end development.
• Expertise in building scalable, high-performance solutions.
• Strong understanding of SQL (MySQL) and data modeling.

Responsabilidades

• Build features in Proton products.
• Close interactions with products and engineers across the company.
• Build scalable software architecture through best practices.
• Optimize user experience and design.

Conocimientos

Back-end development

High-performance systems

Profiling tools

Team leadership

SQL/MySQL

Caching (Redis)

Security

HTTP/REST APIs

Cryptography basics

Payments domain

Herramientas

PHP

Symfony

React

Kotlin

Swift

Rust

Kubernetes

Jira

Confluence

MySQL

Descripción del empleo

Proton is building a better internet where privacy is the default. The Payments team enables revenue generation across Proton’s ecosystem by expanding payment methods and coaching product strategy with cross-functional partners.

You will architect scalable systems, collaborate with product and engineering teams, and ship features across Proton’s product suite while focusing on performance, security, and user experience. Barcelona and other offices offer collaborative spaces.