Senior Front End Engineer (Docs)

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 to 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 at heart. We 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 !

The Team

As a Front-end Engineer on Proton's Docs and Sheets team, you will help build secure productivity tools, working across Proton Docs, Proton Sheets, the Docs homepage, and future products.

We are seeking a senior engineer who is passionate about client-side architecture, system design, and usability, and who thrives in a highly collaborative environment. You'll work closely with Product, Design, API teams, and fellow engineers, driving data-informed decisions to deliver a seamless and secure user experience.

Current Projects

Our team builds Proton Docs, Proton Sheets, and the Docs homepage, helping users create, edit, organize, and collaborate on documents and spreadsheets while protecting their privacy. Current work spans editor capabilities, real-time collaboration, and the homepage experience that brings these products together. You'll build these experiences using React and TypeScript, with end-to-end encryption at their core.

Tech Stack and Tools

TypeScript, JavaScript, React, Tailwind CSS, Lexical, Yjs, Playwright, Jest

Explore our open-source code: [Proton web clients](https://github.com/ProtonMail/WebClients).

End-to-end encryption brings unique engineering challenges to collaborative editing and document management. You'll help deliver responsive, intuitive experiences while keeping users' content private.

Future Plans

We will continue expanding Proton Docs and Proton Sheets, improving the Docs homepage, and building future productivity products. Our focus is on richer editing capabilities, smoother collaboration, and connected workflows for individuals and businesses, guided by security, privacy, and simplicity.

What You Will Do

Build, ship, and maintain user experiences across Proton Docs, Proton Sheets, the Docs homepage, and future products, helping users work with documents and spreadsheets securely.

Transform product specifications into technical requirements and lead your team to their successful implementation.

Enhance our team's development lifecycle, tools, and code structure for an improved developer experience through technical leadership and architecture.

Write clear, concise, and testable code to maintain and elevate the quality of our codebase.

Scope, plan, and execute new features, technical initiatives, and greenfield projects (depending on seniority).

Foster a culture of learning, creativity, and accountability for the best possible work through mentorship and team development, role modeling quality assurance, and performance optimization.

Job Requirements

Deep understanding of JavaScript methodologies and design patterns

Proficiency with TypeScript 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 monitoring platforms

Experience with breaking down product requirements into architecture design and implementation

Experience with NodeJS

High-level understanding of cryptography concepts such as key exchange and the difference between symmetric and asymmetric encryption

What We Offer

Office First: Collaboration is easier and more effective in person, which is why we have offices in Geneva, Zurich, Prague, Barcelona, Paris, London, Vilnius, Skopje, and Taipei. You can also enjoy working from home up to 30% of the time, while enjoying great company during our three core days in the office.

Technology: We provide all the devices and software you need to excel in your role, ensuring you have the best tools at your disposal to achieve your goals.

Food: Lunch and snacks are provided by Proton every day at our offices.

Transport: We will always support our employees with transport costs through subsidizing public transport, bike allowances, or parking spaces based on your office location.

Stock Options: At Proton, we are all owners of the company and you get stock options when you join us.

Flexible Working: You can define your own working hours as long as it works with team meetings.

Learning and Development: We are committed to your professional growth. Proton offers various learning opportunities, including training programs, conferences and events, and continual learning.

Employee Benefits: Comprehensive health insurance plans, competitive retirement savings options, generous vacation and leave policies, and wellness programs.

Work that Matters: Proton is a community-first organization, started with the support of a crowdfunding campaign and built with community input. To this day, Proton’s only source of revenue is user subscriptions. Over 100 million people trust and support Proton, and we put our users and community first in everything we do. Read more about our impact here .