As Proton is a global Company, the Payments Team works to continuously expand the possibilities for users to pay with various payment methods, beyond just plain credit cards or Paypal.
The mission of the team is to empower anyone in the world who wish to use Proton services, to become a Proton subscriber by building enticing interfaces, being able to progressively reach integral markets, by providing the methods and tooling allowing users to pay, and for the Proton organization to properly being able to measure growth, and to follow the relative financial regulations.
Differently than many other stacks at Proton, the Payments stack depends largely on external services such as payment providers, tax-information providers, currency-conversion providers... As such it is critical, for the success of the service, to build with resilience.
Internally our backend code is in general based on PHP/Symfony, our frontend is based on React, our mobile code is based on Kotlin (on Android) and on Swift (on iOS), with a growing shared codebase in Rust.
We are migrating our infrastructure to Kubernetes.




Everything runs on premise in Proton's data-centers.
To organize our work we use classic tools such as Jira and Confluence.
With payments being the backbone of any subscription business, we have ambitious plans to expand the team to cover a wide breadth of topics ranging from demystifying payment performance data across regions/products, to thinking about the holistic strategy of product catalogs, and everything in between. This particular team requires someone who is a strong generalist, who thrives with ambiguity. Build scalable software architecture through software engineering best practices.
Optimise user experience and design.
Proven experience with back-end development
Expertise in building scalable, high-performance solutions
Proficiency with profiling techniques and performance optimization tools
Strong understanding of SQL (MySQL preferred) and data modeling best practices
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📌 Senior Backend engineer (España)
🏢 Proton
📍 España