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Senior Frontend Engineer; Drive

Job in London, Greater London, England, UK
Listing for: Proton
Full Time position
Listed on 2025-10-08
Job specializations:
  • Software Development
    Software Engineer, Full Stack Developer
Job Description & How to Apply Below
Position: Senior Frontend Engineer (Drive)

Join to apply for the Senior Frontend Engineer (Drive) role at Proton

Join to apply for the Senior Frontend Engineer (Drive) role at Proton

Join Proton and build a better internet where privacy is the default

At Proton, we believe that privacy is a fundamental human right and the cornerstone of democracy. Since our inception in 2014, founded by a team of scientists from CERN, 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 include Proton VPN, Proton Calendar, Proton Drive, and Proton Pass. These tools empower individuals and organizations to take control of their personal data, break away from Big Tech’s invasive practices, and defeat censorship. Our work impacts hundreds of millions of lives, from activists on the front lines defending freedom to leaders in governments protecting sensitive information.

In some cases, Proton’s services have even been instrumental in saving lives by enabling secure and private communications in high-risk situations.

Proton is a profitable company that does not rely upon VC funding, supporting over 100 million user accounts with a growing team of over 500 people from over 50 different countries, from the world's top companies and universities. We value intelligence, learning potential, and ambition in our hiring process. Adaptability is key as we navigate uncharted territories and redefine how business is conducted online.

Hiring at Proton is highly selective, with less than 1% of candidates hired. We believe smaller teams of exceptional talent will always prevail over larger teams with lower talent density. You will have the opportunity work with many of the world's top minds in their fields, ranging from former international math and science olympiad winners to chess champions.

We have a global mindset and big ambitions but remain a start-up  value empowerment and flexibility and keep our structure flat to keep moving fast and avoid unnecessary politics. Tired of blending into the crowd? Join us and do work you can truly be proud of. Check our open-source projects here!

Purpose of the role:

As a Frontend Engineer on the Drive team, you will play a crucial role in developing Proton Drive. We expect you to be customer-centric, continuously learning, passionate about technology and usability. You are an adept at turning technical complexities into seamless user experiences. Effective teamwork, collaboration with Product, Design, APIs, and your team, and data-driven decision-making are essential aspects of this role.

What you will do:

  • Develop new features:
    Developing, deploying and supporting high-quality user experiences within Proton Drive, including feature development and implementation.
  • Collaboration:

    Work closely with backend, product owners, designers, QA, and other engineers to take initiatives from ideation to completion.
  • Code review and optimization:
    Conduct code reviews and provide constructive feedback to ensure code quality, maintainability, and performance optimization.
  • Testing:
    Develop and implement comprehensive testing strategies, including unit tests and integration tests, to ensure the reliability of core libraries.
  • Management:
    Break down large initiatives into smaller milestones to gather stakeholder feedback quickly, allowing us to course-correct immediately.


Job Requirements :

  • Deep understanding of JavaScript methodologies and design patterns
  • Proficiency with Type Script or any typed language
  • Experience with React or 2+ similar frameworks, developing performant and reusable components
  • Strong understanding of software engineering best practices, such as SOLID, Design Patterns, CI/CD
  • A product mindset with a focus on offering the best user experiences
  • Experience working in a distributed team
Bonus points for:

  • Awareness of common security issues in client-side development, such as those in the OWASP top ten, and how to mitigate them
  • Familiarity with UX, accessibility, internationalization, and localization concerns and solutions
  • Experience with Grafana or other…
Position Requirements
10+ Years work experience
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