Senior Backend Engineer - Scalable, Secure APIs

proton tehnologies; Genf; Vor Ort; CHF 120.000 - 180.000; Vollzeit

Benefits dieser Stelle

Stock options

Health coverage

Retirement options

Generous leave

Wellness support

In-person collaboration

Lunch and snacks

Transport support

Flexible hours

Zusammenfassung

Proton Technologies AG is seeking an experienced Backend Engineer to join the VPN team in Geneva and contribute to building a trustworthy, scalable backend that powers millions of users seeking privacy.

You will collaborate with cross-functional teams to deliver reliable back-end capabilities, optimize performance, and ensure secure API access while advancing cryptography concepts and data protection.

Qualifikationen

• 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.
• 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.

Aufgaben

• Work closely with a group of Back-End Engineers and Architects to build resilient, massively-scalable solutions for millions of people to rely on.
• Collaborate with teams of client application developers and product management to ensure that the back-end meets critical business and reliability requirements.
• Document back-end capabilities and their proper use so that all Proton VPN clients can implement correctly-functioning solutions.
• Debug and repair vital systems such as the systems responsible for cleaning up file revisions and returning quota to users.

Kenntnisse

PHP

Scalable systems

Profiling

Team leadership

SQL (MySQL)

Redis caching

Security best practices

HTTP/REST APIs

Cryptography basics

Back-end architecture

Tools

Docker

Grafana

OpenTelemetry

Python

Rust

OpenAPI

Jobbeschreibung

Proton Technologies AG is seeking an experienced Backend Engineer to join the VPN team in Geneva and contribute to building a trustworthy, scalable backend that powers millions of users seeking privacy.

You will collaborate with cross-functional teams to deliver reliable back-end capabilities, optimize performance, and ensure secure API access while advancing cryptography concepts and data protection.