Infrastructure Engineer

Job description

At Proton, we envision an internet where privacy is the default, and we’re building ways to help all people secure their digital lives and take control of their data. ProtonMail was founded in 2014 by a group of scientists who met at the European Organization for Nuclear Research (CERN). And since its inception, the company has grown at a fast pace and today has over 40 million users.

Our principal product, ProtonMail, is the world’s largest secure email service. Our second product, ProtonVPN, is one of the world’s most popular VPN services. Our vision is to build an internet platform for the protection of digital rights, and we are also developing additional products, including ProtonCalendar, ProtonDrive, and more to come.

Our users include New York Times journalists, some of the world’s largest corporations, and millions of ordinary citizens. The world is adopting our products at an accelerating pace. Whether it’s in New York, or at the front lines of the global struggle for freedom and democracy in Hong Kong, Belarus, and Myanmar, the work we do saves lives and is transforming the world. Our team is diverse and dynamic, representing over 30 different nationalities, with offices in Geneva, Zurich, Prague, London, Vilnius, Skopje, and Taipei, employing people around the world.

Proton is a mission driven company. We’re deeply committed to enabling freedom online and ensuring the internet serves the interests of all people. Our technologies provide trusted ways for people to be secure online and in control of their information at all times. The world is adopting our products at an accelerating pace. Help us bring it from tens of millions of users, to billions of users. We’re creating one of the world’s most impactful tech companies.



Purpose of the role

We operate our own private cloud infrastructure, which is distributed across multiple data centers. This infrastructure, built primarily on open source technology, is doubling every year and requires 24/7 operation.

We have multiple positions open for working in Proton's Infrastructure group, including:

  • Database

  • Web

  • Monitoring

  • Security

You will operate our infrastructure and contribute to its development, security, and reliability.

You need demonstrable knowledge of Linux and experience handling administrative tasks on core infrastructure services. These tasks include monitoring, logging, configuration management, DevOps solutions, and cloud architecture. You should also enjoy building secure, scalable, and highly available systems, taking ownership and responsibility for services and projects, and working in close collaboration with multiple teams.


What you will do

  • Contribute to Linux systems and manage updates
  • Maintain, scale, and optimize infrastructure services
  • Perform analysis for troubleshooting and incident response
  • Support infrastructure teams and company projects
  • Keep our infrastructure aligned with the highest security standards
  • Contribute to the on-call rotation

Job requirements

  • 5+ years of administering Linux systems in a medium/large scale and highly-available infrastructure
  • Deep understanding of virtualization (VM and containers) concepts
  • Experience with logging and monitoring systems
  • Demonstrated knowledge of Linux
  • Proven experience with configuration management and automation (Puppet, Ansible)
  • Scripting experience in Python and/or Bash
  • Experience using web protocols and service daemons such as Apache, HAProxy, or Nginx
  • Ability to keep up in an extremely fast-paced environment
  • Good communication skills in a multicultural environment

 Bonus points for

  • Other programming languages (PHP, go, C/C++)
  • Deploying and maintaining medium to large scale MySQL databases (Percona / Vitess technologies a bonus)
  • Computer hardware architecture
  • On-premise cloud solutions 



Why you should join Proton

  • We work on interesting, challenging problems every day. There is never a dull moment.

  • Our startup culture means everyone’s opinion matters. You can have a significant impact.

  • Our rapid growth means there are many opportunities for advancement.

  • The chance to do something meaningful. ProtonMail protects dissidents, journalists, and activists. Our work saves lives.

  • Be part of something bigger. Millions of people and businesses around the world have embraced our idea of an Internet where privacy and security are the default. Join the privacy revolution that is changing the world.


ProtonMail uses the Recruitee recruitment platform for a more effective hiring process and a better candidate experience. Your data will always be kept confidential and is not shared with any third parties. Keep in mind that you will receive emails from the email address careers@protonmail.recruitee.com or other addresses on the protonmail.recruitee.com domain.

Proton does not accept unsolicited resumes from any sources other than directly from a candidate. Proton will not pay a fee for any placement resulting from the receipt of an unsolicited offer, even in a situation when the relevant candidate is employed by Proton.