---
title: 'Spam and Abuse Analyst (MSA) at Proton'
canonical: 'https://feeny.ai/job/spam-and-abuse-analyst-msa-proton-taipei-zk06fq6hbvh0'
type: 'job'
last_seen: '2026-10-23'
---

# Spam and Abuse Analyst (MSA) at Proton

- **Company:** Proton
- **Location:** Taipei, Taiwan
- **Posted:** 2026-07-27
- **Last confirmed live:** 2026-10-23
- **Apply:** https://job-boards.eu.greenhouse.io/proton/jobs/4938132101

## Job description

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. Our work impacts hundreds of millions of lives, from activists on the front lines defending freedom to leaders in governments protecting sensitive information. In some cases, Proton’s 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 world's 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 world's 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 of. Check our open-source projects [here](https://proton.me/community/open-source)!

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 attacks. In 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 excellence. In 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 doesn't 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
- Taipei Work Schedule: standard day shift

Bonus points for:

- Experience with Python

Even if you don’t 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 impact [here](https://proton.me/about/impact))
- Technology: you'll 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 you'll be thrown into real challenges, with real ownership, from day one.
- Employee Benefits: your wellbeing isn't 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 we're 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, you'll spend most of your time collaborating face-to-face with people who genuinely care about what they're building
- Food: Lunch and snacks are on us every day in our offices so you can focus on the work and not on what's for lunch.
- Transport: getting to the office shouldn't 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 their [Service Privacy Policy.](https://www.greenhouse.com/privacy-policy) This 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 careers@proton.ch.

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 visit [our privacy policy page](https://boards.eu.greenhouse.io/protongdpr).

## #LI-ONSITE

## About Proton

## Company Overview
- **One-liner**: Proton provides a suite of end-to-end encrypted, privacy-first online services including email, VPN, cloud storage, password management, and AI assistant.
- **Entity Type**: Private (owned by the non-profit Proton Foundation, community-funded, profitable with no VC dependency)
- **Headquarters**: Geneva, Switzerland
- **Founded**: 2014
- **Founders**: Scientists from CERN (individual names not listed in provided sources)

## Core Business
- Primary industry/industries: Technology, Information and Internet; online privacy and security services
- Target customers: B2C (individuals, journalists, activists) and B2B (businesses of all sizes, NGOs, public sector)
- Mission or purpose statement: "To make privacy the default for everyone." – also described as defending freedom and building a better internet.

## Products & Services
- **Proton Mail**: End-to-end encrypted email service (SaaS)
- **Proton VPN**: Secure, fast VPN with no-logs policy (SaaS)
- **Proton Calendar**: Encrypted calendar that keeps schedules private (SaaS)
- **Proton Drive**: Encrypted cloud storage with secure file sharing and collaborative Proton Docs (SaaS)
- **Proton Pass**: Password manager with built-in 2FA authenticator, hide-my-email aliases, and secure notes (SaaS)
- **Proton Authenticator**: Free, open-source two-factor authentication app (Mobile/Desktop App)
- **Proton Meet**: Encrypted video call service launched in 2026 (SaaS)
- **Lumo by Proton**: Privacy-respecting AI assistant integrated with the Proton ecosystem (SaaS/API)
- **Proton for Business**: Bundled suite for organizations with admin controls and compliance features (SaaS)

## Market Standing
- **Valuation/Market Cap**: Not disclosed (company is profitable, not VC-funded)
- **Key Metric**: Annual Revenue of USD 20,000,000 (per LinkedIn); over 100 million user accounts
- **Notable Investors/Partners**: Primary shareholder is the non-profit Proton Foundation; key partnerships with CERN and MIT (origins); acquired Standard Notes Ltd. (2024) and SimpleLogin SAS (2022)
- **Growth Signals**: 600+ employees across 8+ offices globally; monthly headcount growth of +1.2%; 118 active job postings; expanding product line (e.g., Proton Meet, Lumo AI); trusted by over 100,000 businesses

## Competitive Advantages
- **Swiss jurisdiction**: Data protected by some of the world’s strongest privacy laws outside of US surveillance reach
- **Zero-access encryption**: Proton cannot technically access user data (end-to-end encryption by default)
- **Open source & audited**: All apps are open source and independently audited for trust and transparency
- **Not ad-driven**: Subscription-based business model with no ads or data selling
- **Non-profit ownership**: Proton Foundation ensures mission before profit
- **Highly selective hiring**: <1% acceptance rate, attracting top global talent

## Strategic Focus
- **Ecosystem expansion**: Integrating all services under a single Proton Account, launching new products (Proton Meet, Proton Docs, Lumo AI)
- **B2B growth**: Scaling Proton for Business with dedicated sales and compliance features
- **Migration from Big Tech**: Tools to easily import from Gmail/Outlook/Google Drive to Proton
- **AI done right**: Developing privacy-respecting AI (Lumo) that does not compromise user data
- **Open source community**: Continued commitment to open source and external audits

## Why Work Here
- **Mission-driven work**: Impact the privacy and security of over 100 million users, including activists and journalists
- **Culture**: Small, empowered teams with high talent density; real ownership from day one
- **Remote/hybrid/office policy**: Flexible working (outcomes-focused); offices in Geneva, Zurich, Skopje, Taipei, Vilnius, Barcelona, Paris, and Prague; in-person collaboration encouraged (daily lunch and snacks provided)
- **Notable perks**: Stock options for all employees, strong health coverage, generous leave, learning & development investment, public transport/bike allowance, top-of-the-line hardware
- **Engineering culture**: Open-source codebase, modern stack (migrating to TypeScript/GPL3), focus on product engineering and impact

## Sources
1. [proton.me](https://proton.me/)
2. [LinkedIn Company Profile](https://ch.linkedin.com/company/protonprivacy)
3. [Greenhouse Job Board](https://job-boards.eu.greenhouse.io/proton)
4. [Greenhouse Job Application (Frontend Engineer)](https://job-boards.eu.greenhouse.io/proton/jobs/4857528101)
5. [Levels.fyi - Proton Careers](https://www.levels.fyi/companies/proton)

## Other roles at Proton

- [Senior Product Designer - (VPN)](https://feeny.ai/job/senior-product-designer-vpn-proton-geneva-yrwgqkdhd9z2) — Geneva, Switzerland
- [Site Reliability Engineer (Meet)](https://feeny.ai/job/site-reliability-engineer-meet-proton-taipei-b9tz6tp9cnhe) — Taipei, Taiwan
- [Senior Product Manager (Inbox) - B2B](https://feeny.ai/job/senior-product-manager-inbox-b2b-proton-london-b1q014yraebr) — London, United Kingdom / Paris, France
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- [Senior DevOps Engineer - Platform](https://feeny.ai/job/senior-devops-engineer-platform-proton-paris-4r46nkmbvswk) — Paris, France / Geneva, Switzerland / Barcelona, Spain
- [Site Reliability Engineer - Storage](https://feeny.ai/job/site-reliability-engineer-storage-proton-geneva-switzerland-paris-jrvcvge7smx7) — Geneva Switzerland Paris, France
- [Senior Product Designer (Drive)](https://feeny.ai/job/senior-product-designer-drive-proton-london-j3q0cnv38zga) — London, United Kingdom
- [Head of Product (Mail)](https://feeny.ai/job/head-of-product-mail-proton-london-tx25vw0dca8m) — London, United Kingdom / Paris, France / Geneva, Switzerland
- [Senior Engineering Manager](https://feeny.ai/job/senior-engineering-manager-proton-geneva-switzerland-paris-2t9aqcbq7kc7) — Geneva Switzerland Paris, France
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