Back End Engineer (Marketing Technology, Growth Engineering)

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
Growth Engineering is a rapidly growing team within Proton. We are responsible for our web storefronts, marketing measurements, and automation tools. Our engineering excellence drives the acquisition, onboarding, activation, and engagement of Proton users. The Market Technology team within Growth Engineering builds and maintains an architecture based on Kafka and API connections for external providers. This is used to manage our advertising, affiliates, and partners with regard to revenue attribution, reporting, and statistics.


What you will do

  • Be part of a new Marketing Technology team within Growth Engineering.
  • Work closely with teammates in order to design, build, test, and operate Proton tooling for advertising, affiliates, and partner marketing.
  • Develop tooling for marketing automation.
  • Integrate third-party APIs and tools.
  • Write readable, maintainable, tested, and well-documented code.
  • Ensure that acceptance criteria and all parts of the technical design are correctly incorporated.
  • Help refine our CI/CD and pipelines to improve lead times and developer efficiency.
  • Follow and promote engineering best practices.
  • Take part in team activities such as sprint ceremonies, code reviews, and pair programming.
  • Mentor new joiners and less experienced team members, while sharing your knowledge and skills with the wider team.

Job requirements

  • 3+ years experience in a back-end or full-stack software engineering role (e.g., building scalable APIs and back-end systems or in web development).
  • Strong proficiency in software engineering fundamentals and a chosen language — this team uses Python and modern PHP, but knowing both is not a hard requirement.
  • You are used to testing your own code using unit tests and integration tests at a minimum.
  • Experience using and implementing DevOps principles and practices (including CI/CD).
  • Proficiency with SQL.
  • Experience working on Digital Marketing projects.

Bonus points for:

  • Experience with Google and Bing Ads APIs.
  • Experience with or knowledge of affiliate marketing platforms such as Tune, Awin, or similar.
  • Experience with Kafka.
  • Experience with Kubernetes.
  • Experience implementing marketing analytics tools and frameworks.
  • Experience with mobile measurement tools/MMP.


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.