Senior Backend Engineer (Account)
Core
Designing and building scalable, high-performance backend services and APIs for Proton's customer lifecycle, including acquisition, account management, and checkout flows.
Role type
Senior Backend Engineer (Account)
Builds
Core backend components and APIs used across all Proton products (Mail, VPN, Calendar, Drive, Pass)
Domain
Privacy-focused SaaS / Cybersecurity
Deliverable
production ML models | product features
Required skills
Backend development, Scalable system architecture, Performance profiling and optimization, SQL (MySQL), Data modeling, Redis/Caching, Security implementation, HTTP/REST API design, Cryptography
Preferred skills
SRE/On-call experience, Docker/Containerization, Grafana/OpenTelemetry, Python, Rust, OpenAPI specs
Technologies
PHP, Symfony, React, Kotlin, Swift, Rust, Kubernetes, MySQL, Redis, Jira, Confluence
Responsibilities
Define new solid architecture for components used in all Proton products; Develop powerful APIs enabling apps to be feature-rich and ship features at high velocity; Lead team initiatives from discovery to production; Implement secure software solutions with strong cryptographic concepts.
Seniority
Senior, hands-on IC