About this role
Senior Backend Engineer (Payments) at Proton. Location: Barcelona or London. Role: Build features, Architect scalable, Enhance experience Requirements: Proven back-end development experience with scalable, high-performance systems; SQL/MySQL; Redis; security; HTTP/REST APIs; cryptography; leadership experience. Category: Software Development Seniority: Senior Level Tools: PHP, Symfony, React, Kotlin, Swift, Rust, Kubernetes, MySQL, Redis, HTTP/REST, Open Source GPL3 Commitment: Full Time Workplace: Onsite Languages: English