Senior Fullstack Engineer

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.

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. 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. You will have the opportunity to work with many of the world's top minds in their fields.

Purpose of the role:

What you will do:

• Maintain and refactor existing code to provide a stable API for our VPN client applications and infrastructure.
• Collaborate with product owners, designers, QA, and other engineers to take initiatives from ideation to completion.
• Break down large initiatives into smaller milestones to gather stakeholder feedback quickly.
• Propose the best next steps when initiatives are deadlocked between product and engineering.
• Keep security top-of-mind during design and implementation.
• Demonstrate a growth mindset and team-player attitude by helping the team raise the bar on code quality, architecture, and day-to-day operations.

Job Requirements:

• Strong experience with backend architecture and development.
• Experience working on highly scalable production systems.
• Demonstrated problem-solving and software engineering skills.
• Strong understanding of software engineering best practices, such as SOLID, Design Patterns, TDD, CI/CD.
• Familiarity with modern PHP and the Symfony framework.
• Open source contributions.
• Experience leading complex, highly scalable production systems.
• Experience with data processing and storage (e.g., MySQL, MongoDB, Redis, Kafka, Elastic).
• High-level understanding of cryptography concepts such as key exchange and the difference between symmetric and asymmetric encryption.

Our team's tech stack:

• PHP / Symfony
• MySQL
• Redis
• Typescript
• React
• Docker

What We Offer:

• Office First: Collaboration is easier and more effective in person, which is why we have offices in multiple locations. You can also enjoy working from home up to 30% of the time.
• Technology: We provide all the devices and software you need to excel in your role.
• Food: Lunch and snacks are provided by Proton every day at our offices.
• Transport: We support our employees with transport costs through subsidizing public transport, bike allowances, or parking spaces.
• Stock Options: 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 offer various learning opportunities, including training programs and events.
• Employee Benefits: Comprehensive health insurance plans, competitive retirement savings options, and wellness programs.
• Work that Matters: Proton is a community-first organization, built with community input.

Our Commitment to Diversity and Inclusion

At Proton, we believe diversity drives innovation and strengthens our mission. We are committed to fostering an inclusive environment where all individuals feel valued and empowered.

If you need any extra support or reasonable adjustments during the hiring process, please let your talent partner know.