Join Proton and help build a better internet where privacy is the default
Proton was founded in 2014 by scientists from CERN on a simple truth: privacy is a fundamental human right. Since then, we’ve built the world’s largest encrypted email service (Proton Mail) and expanded into Proton VPN, Proton Drive, Proton Pass, and Proton Calendar—tools used by millions globally to protect their freedom, fight censorship, and keep their data safe. In some situations, Proton has literally helped save lives!
We are profitable, independent (no VC control), and selectively hire from the top ~1% of applicants. Our 500+ team members across 50+ countries come from leading organizations and elite academic backgrounds. We move fast, keep hierarchy light, and prioritize impact over optics. If you want to do meaningful work with exceptionally high-caliber people, this is it. Join us and do work you can truly be proud of.
Tired of blending into the crowd? Join us and do work you can truly be proud of. Check our social media pages to learn more about us:,, and .
The Role:
As our ASO Specialist, you will be responsible for building and executing scalable App Store Optimization strategies across iOS and Android for products. You’ll work cross-functionally with SEO, Product, Design, and Growth teams to improve visibility, increase conversion rates, and support user acquisition in new and existing markets.
This role will blend hands-on execution with strategic thinking and is ideal for someone who thrives in a multilingual, multi-market environment. You’ll play a critical role in unifying our organic presence across web and mobile.
What You’ll Do:
1. Drive ASO Strategy Globally: Own and optimize ASO efforts across Google Play and Apple App Stores in key and emerging markets.
2. Keyword Research & Localization: Conduct keyword research using leading tools and local insights. Work with translators/regional teams to scale metadata localization effectively.
3. Creative Asset Optimization: Partner with Design and Product teams to test and optimize store assets (screenshots, app icons, videos, etc.) for conversion across markets.
4. Performance Measurement & Experimentation: Define and track KPIs. Design and analyze A/B tests on store creatives and metadata.
5. Multimarket Expansion: Identify and prioritize international growth opportunities based on market research, competitive analysis, and store performance data.
6. SEO Integration: Collaborate with the SEO team to align landing pages, keyword targeting, and content campaigns with app store strategies for a unified organic acquisition funnel.
7. Tooling & Automation: Recommend and implement ASO tools, workflows, and reporting systems to drive operational excellence.
8. Cross-functional Collaboration: Work closely with Product Marketing, SEO, Analytics, and Growth Engineering to integrate ASO with broader acquisition initiatives.
What You Bring:
9. 5+ years of experience in SEO and how it complements ASO strategies.
10. Solid experience in ASO with a strong understanding of both Google Play and Apple App Store ecosystems.
11. Demonstrated experience scaling ASO efforts in multiple languages/markets.
12. Proven ability to drive measurable improvements in app rankings, impressions, and install conversion rates.
13. Experience with ASO tools like AppTweak, SensorTower, AppFollow, Mobile Action, or equivalent.
14. Strong analytical skills and familiarity with tools like Looker, Google Analytics, Firebase, App Store Connect, and Google Play Console.
15. Experience working with creative teams to optimize app store assets based on market trends and cultural preferences.
16. Comfortable working cross-functionally in a fast-paced, collaborative environment.
17. Strong written and verbal communication in English. Additional languages are a plus.
Why Join Proton?
18. 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 )
19. Technology: you'll get the right hardware and the right software you need to do your best work.
20. 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.
21. 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
22. 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.
23. 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
24. 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.
25. Transport: getting to the office shouldn't cost you. We cover public transport, bike allowances, or parking, whichever works for you.
26. 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.
Check our social media to learn more about Proton:
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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 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.
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 .