Spam and Abuse Analyst (MSA)

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 Techs invasive practices and defeat censorship. Our work impacts hundreds of millions of lives from activists on the front lines defending freedom to leaders in governments protecting sensitive some cases Protons services have even been instrumental in saving lives by enabling secure and private communications in high-risk situations.

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 from the worlds top companies and universities. 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. We believe smaller teams of exceptional talent will always prevail over larger teams with lower talent density. You will have the opportunity work with many of the worlds top minds in their fields ranging from former international math and science olympiad winners to chess champions.

We have a global mindset and big ambitions but remain a start-up at heart. We value empowerment and flexibility and keep our structure flat to keep moving fast and avoid unnecessary politics. Tired of blending into the crowd Join us and do work you can truly be proud ouropen-sourceprojectshere!

Purpose of the role

The MSA department is a highly multi-disciplinary group started in 2019 to tackle difficult mail delivery spam and abuse problems. We built sophisticated systems from scratch that combine human intelligence and machine learning to make tens of millions of realtime or asynchronous decisions each day. As of 2022 our three areas of focus are 1) mail delivery and spam 2) abuse and account security and 3) site reliability of Proton. Over the past years our custom systems have reduced spam filter misclassifications by over 50% blocked millions of abusive bulk signups protected hundreds of thousands of users from account compromise by attackers and mitigated hundreds of DDoS order to move fast with limited resources we are organized into autonomous teams responsible for the whole system with expertise across infrastructure data storage backend frontend machine learning security and operational 3 years we grew from 2 engineers to over 30 engineers and analysts spread across 3 continents for 24/7 coverage. We are looking for humble mission-driven systems-thinking people who want to make a big impact in a startup environment.

What you will do

• Monitoring how things are working in production and taking appropriate actions across all MSA systems
• Fight spam and abuse by quickly understanding the data and context and creating rules to act on past or future events
• Give insights and feedback to Software and Machine Learning Engineers to help design and improve our systems.
• As an engineering-driven organization MSA currently doesnt have product or project managers so you will have the opportunity to play those roles and drive the planning development and QA process.
• Our more technical analysts develop Python scripts for more sophisticated actions or data analysis

Job requirements

• Experience performing data analysis (preferable but not limited to electronic communications anomaly detection or fraud prevention)
• Strong logical reasoning and analytical skills
• Excellent English communication both written and spoken
• Able to operate in a fast environment
• Skopje Work Schedule: second shift (2:00 PM 10:00 PM CEST) with flexible schedule
• Taipei Work Schedule: standard day shift

Bonus points for:

• Experience with Python

Even if you dont meet all the requirements listed above but feel you could still be a great fit please still apply.

What We Offer:

• Work that Matters:millions of people trust Proton with their privacy. We answer only to our users not advertisers not investors with conflicting agendas not governments. The work you do here is real and the impact is measurable. (read more about our impacthere)
• Technology:youll get the right hardware and the right software you need to do your best work.
• Learning & Development:we invest in your growth because sharp people make us better. Proton is one of the fastest ways to accelerate your career because youll be thrown into real challenges with real ownership from day one.
• Employee Benefits:your wellbeing isnt an afterthought. We offer strong health coverage solid retirement options generous leave and wellness support so you can bring your best self to work every day
• Stock Options:at Proton we all have the opportunity to be owners of the company. From day one you have a real stake in what were building. When Proton wins you win.
• In-Person Collaboration:Amazing things happen when passionate smart and purposeful people get together in the same room. With offices across Geneva Zürich Barcelona London and more youll spend most of your time collaborating face-to-face with people who genuinely care about what theyre building
• Food:Lunch and snacks are on us every day in our offices so you can focus on the work and not on whats for lunch.
• Transport:getting to the office shouldnt cost you. We cover public transport bike allowances or parking whichever works for you.
• Flexible Working:you own your schedule. Set hours that work for you and your team because outcomes matter more than when the clock says you started.

Our Commitment to Diversity and Inclusion

At Proton we believe diversity drives innovation and strengthens our mission to provide privacy as a default for all. We are committed to fostering an inclusive environment where all individuals regardless of race ethnicity gender age sexual orientation physical ability or socio-economic background feel valued and empowered. We strive to create equal opportunities promote open dialogue and support continuous learning to ensure every voice is heard and respected.

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

Candidate Privacy Notice

When you apply for a position refer a candidate or are considered for a role at Proton Technologies AG (Proton we us or our) your information is stored in Greenhouse in accordance with theirService Privacy information is used to evaluate your suitability for the posted position. We also retain this information for consideration for future roles that you may apply for or that we believe may align with your background and skills.

If we no longer have a legitimate business need to process your information we will either delete or anonymize it. Should you have any inquiries about how we use or manage your information or if you wish to access correct or delete your data please contact our privacy team at

Proton does not accept unsolicited resumes from any sources other than directly from candidates. We will not pay a fee for any placement resulting from an unsolicited offer even if the candidate is subsequently hired by Proton.

To learn more about our privacy policy please visitour privacy policy page.

#LI-ONSITE