Posted 49 days ago
Backend Engineer (VPN)
Proton
No sponsor info yet
€53,000–€104,000 per year (posted by the employer)
Permanent residency after about 5 yrs
Citizenship after about 10 yrs
Work language: likely English (posting is in English)
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About the role
Join Proton and 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 700+ team members across 50+ countries come from leading organizations and elite academic…
Social security agreement
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Location Insights: Barcelona
Rent (City)
Rented flats in Barcelona city averaged €1,137/month in Q1 2026, up 4.6% on a year earlier. This is a citywide average for all flat sizes, with no centre/outside split. Districts ranged from €817 (Nou Barris) to €1,599 (Sarrià-Sant Gervasi).
Take-home pay (Country tax)
About €4,600 a month after tax (at the midpoint of the posted range), using the average rate of 29.7% for a single employee on a higher salary
Weather (City)
Madrid (nearest reference city): summer highs about 94°F / 34°C, winter highs about 51°F / 10°C
Safety (Country)
High peacefulness (Global Peace Index rank 27)
Listed via Greenhouse, on