Backend Engineer VPN-Multiple Cities

Proton Mail, Switzerland                                                              Multiple Cities: Barcelona-Spain, Paris-France and London-UK    Qualification:

• Bachelor’s degree in Computer Science, Engineering or related field (or equivalent work experience).  

Experience:

• Experience with PHP-based entry-points to a back-end software stack. Experience building scalable solutions.
• Experience with profiling methods and tools. Experience leading a team initiative from discovery to production.    
• Experience with Python and / or Rust. Experience with OpenAPI specs or other API documentation frameworks.         

Roles & Responsibilities:

• Job requirements:  Solid understanding of SQL (MySQL preferred) and data modelling. Solid understanding of Redis or other caching technologies.
• Solid understanding of security best practices.
• Solid understanding of HTTP/REST, including both developing and consuming Web-based APIs. High-level understanding of cryptography concepts such as key exchange and the difference between symmetric and asymmetric encryption. Bonus points for:  Operational experience such as SRE or on-call, demonstrating ability to diagnose and troubleshoot complex problems for critical systems. Experience with Docker or similar containerization technologies. Experience with metrics graphing/analysis toolkits such as Grafana and Open Telemetry.