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Posted 53 days ago

Senior Backend Engineer (Foundation)

Proton

  • Salary: not listed by employer

  • Estimated range: From £70,000 per year Estimated Estimated pay meets the Skilled Worker visa minimum

  • Also hiring in France, Spain and Switzerland (open roles on Tech Abroad)

  • Permanent residency after about 5 yrs

  • Citizenship after about 6 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 500+ team members across 50+ countries come from leading organizations and elite academic…

Social security agreement

Location Insights: London

  • Rent (City)

    Average private rent across London was £2,332 a month in August 2026. This covers all property sizes, and ONS gives no centre/outside split.

  • Take-home pay (Country tax)

    Needs a posted salary to estimate

  • Weather (City)

    London: summer highs about 73°F / 23°C, winter highs about 46°F / 8°C

  • Safety (Country)

    High peacefulness (Global Peace Index rank 39)

Listed via Greenhouse, on