Fullstack Engineer (Payments)

TN Spain; Barcelona; Presencial; EUR 40.000 - 80.000; Jornada completa

Descripción de la vacante

Una empresa innovadora busca un desarrollador backend para unirse a su equipo en Barcelona. En este papel, tendrás la oportunidad de construir tecnologías de comunicación encriptadas que impactan millones de usuarios. Trabajarás en un entorno colaborativo y diverso, donde tu voz y tus ideas son valoradas. Con un fuerte enfoque en la calidad, serás responsable de desarrollar herramientas de pago y optimizar la arquitectura de software. Si estás listo para unirte a una comunidad que prioriza la privacidad y la libertad en línea, esta es tu oportunidad para crecer y hacer una diferencia significativa.

Servicios

Apoyo en vacaciones

Licencia parental

Comida y refrigerios en la oficina

Oportunidades de aprendizaje y desarrollo

Equidad para el éxito compartido

Horas de trabajo flexibles

Eventos de empresa y actividades de team building

Formación

• Experiencia profunda en desarrollo backend con PHP o Python.
• Capacidad para trabajar de forma autónoma y liderar el proceso de desarrollo.

Responsabilidades

• Construir características en todos los productos de Proton.
• Optimizar la experiencia del usuario y el diseño.

Conocimientos

Desarrollo backend (PHP o Python)

Construcción de sistemas de producción complejos

Procesamiento y almacenamiento de datos (MySQL, Redis, Kafka, Elastic, Ceph, ClickHouse)

Comunicación en inglés (escrita y hablada)

Desarrollo de aplicaciones iOS o Android

Gestión de servidores Linux

Educación

Título en informática o campo relacionado

Herramientas

Puppet

Ansible

Descripción del empleo

Social network you want to login/join with:

Client:

ProtonMail

Location:

Barcelona, Spain

Job Category:

Other

EU work permit required:

Yes

Job Views:

2

Posted:

25.04.2025

Expiry Date:

09.06.2025

Job Description:

A better internet, where privacy is the default, is possible. Building this better internet might seem daunting or even unthinkable, but at Proton, this is what we do every day.

Proton was founded in 2014 by a group of scientists who met at the European Organization for Nuclear Research (CERN). Our first product, Proton Mail, is now the world’s largest encrypted email service. Subsequent Proton products, such as Proton VPN, Proton Calendar, and Proton Drive, give our users full control over how and with whom their data is shared.

Today, Proton makes privacy universally accessible. Journalists from outlets like The Guardian and The New York Times, some of the world’s largest organizations, and people in more than 180 countries have signed up for over 100 million accounts. Our diverse and dynamic team is made up of more than 500 members representing over 40 different nationalities. While we are based in Geneva, Switzerland, we have offices in Zurich, Prague, London, Vilnius, Skopje, Taipei, and many more employees working remotely around the world.

Join one of Europe’s fastest-growing companies to help us solve challenging problems and build new products that will reach hundreds of millions of people. We want to create more than just one of the world’s most impactful tech companies; we want to create a new internet that serves the interests of all people. We need you, your voice, your ideas, and your ambition to make it happen.

Purpose of the role:

Proton is building an Internet that respects privacy and puts people (not advertisers) first. The products you build will impact the lives of millions of users, so a strong emphasis on quality is required. Our team combines deep mathematical and technical knowledge from the world's top research institutions with expertise in building easy-to-use user interfaces. Together, we are building the encrypted communication technologies of the future. The goal of the Payments team is to integrate online payments using dedicated providers and client libraries to facilitate the operations of our business. The technical implementation of payments is shared across all Proton products and its smooth operation is a key criterion in our success.

The Payments team are the foundation behind the financial operations of Proton. We are working on solving architectural challenges and keeping multiple platforms working together in a robust way.

In this role, you will have ownership across various domains and developing payments tooling across the entire company. We are working across the checkout page, subscriptions and invoicing. An upcoming project for us is B2B sales support, which enables our business clients to scale with their payments processes.

What you will do:

• Build features in all of Proton's products.
• Close interactions with products and engineers across the company.
• Build scalable software architecture through software engineering best practices.
• Optimise user experience and design.

Job requirements:

• Deep experience with backend development (PHP or Python).
• Experience building complex production systems.
• Experience with data processing and storage (MySQL, Redis, Kafka, Elastic, Ceph, ClickHouse).
• Able to work autonomously and lead the whole development process, from design to QA.
• Excellent English communications, both written and spoken.
• Experience within the payments domain.
• Experience with iOS or Android app development.
• Experience with managing Linux servers, including infrastructure as code (Puppet, Ansible) and containerization.

Why should you join Proton?

• Be part of a movement: Proton is not just a product or service but a community-driven movement united by a shared vision of online freedom. Our services are open source, audited, and supported by community contributions. We give back to our community by maintaining core encryption libraries and by supporting other organizations furthering the same goals as us. Proton is free, open source, neutral, independent, and community first, while remaining financially sustainable.
• Work with smart and dedicated people: Our team is diverse, collaborative, and tight-knit with people coming from all walks of life, including many of the world’s top academic institutions and organizations, such as MIT, Harvard, Stanford, Caltech, Cambridge, and ETH.
• Join a strong brand: Our encrypted email service - ProtonMail - has grown to be a staple of online security and privacy. Proton has been featured in multiple popular television and film productions, such as Mr. Robot, Knives Out, Sounds of Metal, and more.
• Grow with us: We’re one of Europe’s fastest-growing startups, doubling in size every year. Our growth gives you limitless career and educational opportunities as well as the opportunity to work side-by-side with many world-leading experts in their fields.
• Have your voice heard: We value your opinion and encourage you to speak up and share your ideas and thoughts. At Proton, no problem is someone else’s problem. We collectively strive to do the right thing and be the undisputed best in the world at everything we do.
• Benefits: These vary by location and type of contract but expect support on your vacation, parental leave, food and refreshments when working from the office, learning and development opportunities, equity for shared success, flexible working hours, company events and team building activities.

Proton does not accept unsolicited resumes from any sources other than directly from a candidate. Proton will not pay a fee for any placement resulting from the receipt of an unsolicited offer, even in a situation when the relevant candidate is employed by Proton.