Senior Frontend Engineer (Pass)
Proton is hiring a Senior Frontend Engineer for the Pass team, which builds Proton Pass, a secure, open-source, end-to-end encrypted password manager. The role calls for an experienced developer working across multiple web platforms including browser extensions, web, and desktop applications. It requires both front-end expertise and deep technical knowledge of browser internals, extension APIs, and desktop application frameworks.
Stack
Responsibilities
- ▹Develop, deploy, and support high-quality user experiences and new features
- ▹Work closely with backend, product owners, designers, QA, and other engineers from ideation to completion
- ▹Break down large initiatives into smaller milestones to gather stakeholder feedback quickly
- ▹Conduct code reviews and provide constructive feedback to ensure quality, maintainability, and performance
- ▹Develop and implement comprehensive testing strategies, including unit and end-to-end tests
Requirements
- ▹Proven front-end expertise with deep technical knowledge of browser internals, extension APIs, and desktop application frameworks
- ▹Deep understanding of the JavaScript ecosystem
- ▹Proficiency with TypeScript or type-safe programming paradigms
- ▹Strong understanding of software engineering best practices, design patterns, and CI/CD
- ▹A product mindset focused on the best user experiences
- ▹Experience working in a distributed team
Nice to have
- ▹Experience with modern MV3 browser extension development
- ▹Experience with Electron or similar desktop application frameworks
- ▹Experience with cross-platform web applications and service-worker architectures
- ▹Experience with WebAssembly and/or Rust
- ▹Experience breaking down product requirements into architecture design and implementation
- ▹Experience with event-driven systems
- ▹Familiarity with UX, accessibility, and localization concerns
- ▹Experience with application monitoring strategies
- ▹High-level understanding of cryptography concepts such as key exchange and symmetric vs. asymmetric encryption
Soft skills
What we offer
- ▹Stock options from day one
- ▹Hardware and software needed to do your best work
- ▹Learning and development support
- ▹Strong health coverage, retirement options, generous leave, and wellness support
- ▹In-person collaboration in offices across Geneva, Zurich, Barcelona, London and more
- ▹Lunch and snacks provided in the offices
- ▹Transport coverage
- ▹Flexible working hours
About the company
Proton was founded in 2014 by CERN scientists on the principle that privacy is a fundamental human right. It runs the world's largest encrypted email service (Proton Mail) and offers Proton VPN, Drive, Pass, and Calendar to millions of users. The team is diverse and includes people from top academic institutions such as MIT, Harvard, Stanford, Caltech, Cambridge, and ETH. The company is profitable and independent with no VC control.