Infrastructure Engineer - Core Team

Job description

A better internet is possible, one that empowers people to choose how their personal information is used. This might seem daunting, or even impossible, but at Proton, building this better internet is what we do every day.


Proton was founded in 2014 by a group of scientists who met at the European Organization for Nuclear Research (CERN). Our first product, ProtonMail, is now the world’s largest encrypted email service. Subsequent Proton products, such as ProtonVPN, Proton Calendar, and Proton Drive, use end-to-end encryption that gives our users full control over how and with whom their data is shared.


Today, Proton is making privacy universally accessible to more than 50 million registered users, including journalists, some of the world’s largest organizations, and people in more than 180 countries. Our diverse and dynamic team is made up of more than 400 members representing over 30 different nationalities. While we are based in Geneva, Switzerland, we have offices in Zurich, Prague, London, Vilnius, Skopje, Taipei, and many more employees working remotely around the world.


New York Times journalists, some of the world’s largest corporations, and millions of ordinary citizens use our products so they can choose who, if anyone, sees their information. Join us at one of Europe’s fastest-growing companies to help us solve challenging problems and build new products that will reach hundreds of millions of people. We want to create more than just one of the world’s most impactful tech companies, we want to create a new internet that serves the interests of all people. We need you, your voice, your ideas, and your ambition to make it happen.



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.

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


As an engineer with demonstrable knowledge of monitoring and logging tools with high volumes of data, you will contribute to our alerting system to improve its reliability. You should enjoy managing 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 their lifecycle
  • Build monitoring and logging systems (Prometheus / Grafana / ELK stack / Loki) with both short-term and long-term data retention
  • Build alerting systems (Icinga / Nagios / Alertmanager / PagerDuty ) with reliability in mind
  • Automate the infrastructure management (IaC)
  • 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 (ELK stack / Loki / Graphite / InfluxDB / collectd / Prometheus) deployed on medium/large scale

  • Experience with configuration management and automation tools (Puppet / Ansible / Chef)

  • Scripting experience in Python and/or Bash

  • Experience using web protocols and HTTP/TCP reverse-proxy daemons (Apache / HAProxy / Nginx)

  • Ability to keep up in an extremely fast-paced environment

  • Good communication skills in a multicultural environment

Bonus points for

  • Experience with Kubernetes and the runtime orchestration (Docker / podman / crio / Kata)

  • Server hardware architecture knowledge

  • On-premise cloud solutions experience


Why you should join Proton

  • Be part of a movement - Proton is not just a product or service but a community-driven movement united by a shared vision of online freedom. Our services are open source, audited, and supported by community contributions. We give back to our community by maintaining core encryption libraries and by supporting other organizations furthering the same goals as us.
  • Work with smart and dedicated people - Our team is diverse, collaborative, and tight-knit with people coming from all walks of life, including many of the world’s top academic institutions and organizations, such as MIT, Harvard, Stanford, Caltech, Cambridge, and ETH.
  • Join a strong brand - Our encrypted email service - ProtonMail - has grown to be a staple of online security and privacy. Proton has been featured in multiple popular television and film productions, such as Mr. Robot, Knives Out, Sounds of Metal, and more.
  • Grow with us - We’re one of Europe’s fastest-growing startups, doubling in size every year. Our growth gives you limitless career and educational opportunities as well as the opportunity to work side-by-side with many world-leading experts in their fields.
  • Have your voice heard - We value your opinion and encourage you to speak up and share your ideas and thoughts. At Proton, no problem is someone else’s problem. We collectively strive to do the right thing and be the undisputed best in the world at everything we do.


Proton 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.