Senior Backend Engineer (Payments)
Core
Build scalable payment infrastructure and features for Proton's global subscription ecosystem, enabling diverse payment methods and ensuring financial compliance.
Role type
Senior Backend Engineer (Payments)
Builds
Payment processing systems, client libraries, and global payment method integrations for Proton products.
Domain
Fintech / SaaS / Privacy-focused technology
Deliverable
production ML models | product features | infrastructure
Required skills
Back-end development, scalable high-performance solutions, SQL (MySQL), Redis/caching, HTTP/REST APIs, cryptographic concepts, security best practices, software architecture.
Preferred skills
Payments domain experience.
Technologies
PHP, Symfony, React, Kotlin, Swift, Rust, Kubernetes, MySQL, Redis.
Responsibilities
Build features across Proton products, collaborate with product and engineering teams, design scalable software architecture, optimize user experience and design.
Seniority
Senior, hands-on IC
