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# Senior Frontend Engineer (Pass)

- **Company:** Proton
- **Location:** Lleida (Lérida), Spain
- **Contract:** Permanent contract
- **Skills:** HTML, JavaScript (Programming Language), Cascading Style Sheets (CSS), Software Quality, Open Source Technology, Web Application Security, Web Applications, Web Application Frameworks, ReactJS, Backend, Vue.js, Front End Software Development
- **Published:** September 6, 2026
- **Apply:** https://www.buscojobs.com.es/senior-frontend-engineer-pass-en-lleida-ID-370075471

## About the Role

To thrive in this role, you should bring a strong background in modern frontend development, with deep proficiency in JavaScript, HTML, and CSS, as well as experience with modern frameworks such as React or Vue. We value engineers who are passionate about open-source technology, have a meticulous eye for detail, and share our mission of protecting user data. Experience with web security best practices and a collaborative, problem-solving mindset will make you a great fit for our distributed engineering culture.

## Description

Join Proton in España as a Senior Frontend Engineer and play a key role in building a better internet where privacy is the default. Founded in **** by a team of scientists from CERN, Proton believes that privacy is a fundamental human right and the cornerstone of democracy. We have dedicated ourselves to providing free and open-source technology to millions worldwide, ensuring access to privacy, security, and freedom online. Our journey began with Proton Mail, the largest secure email service globally, and has since expanded to a comprehensive suite of privacy-focused products.As a Senior Frontend Engineer on our team, you will be responsible for designing, developing, and maintaining high-quality frontend applications that empower users around the globe. You will collaborate closely with cross-functional teams including product managers, designers, and backend engineers to translate complex security and privacy requirements into seamless, user-friendly interfaces. Your expertise will help drive the technical direction of our web applications while upholding our rigorous standards for performance, accessibility, and code quality.To thrive in this role, you should bring a strong background in modern frontend development, with deep proficiency in JavaScript, HTML, and CSS, as well as experience with modern frameworks such as React or Vue. We value engineers who are passionate about open-source technology, have a meticulous eye for detail, and share our mission of protecting user data. Experience with web security best practices and a collaborative, problem-solving mindset will make you a great fit for our distributed engineering culture.At Proton, you will have the opportunity to work alongside a talented, mission-driven team dedicated to making a tangible, positive impact on society.If you are enthusiastic about building privacy-first technology that serves millions of people every day.Company: ProtonLocation: EspañaJob Category: UnknownJob Tags: España#J-*****-Ljbffr


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