Who we are At Fluxon, we believe that how you build matters as much as what you build. We help businesses navigate their most important technology decisions with confidence, and take responsibility for seeing them through. Founded by ex-Googlers and startup veterans, we’re proud…
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Senior It Systems And Security Engineer Jobs
10,000 active opportunities · Updated for November 2026
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Explore current senior it systems and security engineer jobs. Use filters to narrow by work mode, employment type, experience and date posted.
Our journey: Founded in 2017 by Alexandre and Steve, Qonto has grown to 1,700 Qontoers serving over 750,000 customers across 8 European countries. We have been profitable since 2023, and we are just getting started. Our beliefs: We hire for skills and potential. With 80+…
Our journey: Founded in 2017 by Alexandre and Steve, Qonto has grown to 1,600+ Qontoers serving over 600,000+ customers across 8 European countries. We have been profitable since 2023, and we are just getting started. Our beliefs: We hire for skills and potential. With 80+…
Senior Product Marketing Manager - Italian Market (1 year fixed term contract) at Private Employer in Milan. Full-time · Hybrid.
Senior Product Engineer - iOS/Swift at Private Employer in Milan. Full-time · Remote.
Senior Product Engineer - Android/Kotlin at Qonto in Milan. Full-time · Remote.
Senior/Staff - Go Backend Engineer - remote friendly at Qonto in Barcelona. Full-time · Remote.
Senior/Staff - Backend Engineer - remote friendly at Private Employer in Barcelona. Full-time · Remote.
Senior Product Engineer - Android/Kotlin at Qonto in Paris. Full-time · Remote.
Senior Product Engineer - iOS/Swift at Private Employer in Barcelona. Full-time · Remote.
Senior Product Engineer - Android/Kotlin at Qonto in Barcelona. Full-time · Remote.
Senior/Staff - Go Backend Engineer - remote friendly at Qonto in Berlin, Germany; Munich, Germany. Full-time · Remote.
Senior/Staff Backend Engineer - remote friendly at Private Employer in Berlin. Full-time · Remote.
Senior/Staff - Go Backend Engineer - remote friendly at Qonto in Milan. Full-time · Remote.
Senior Product Engineer - Android/Kotlin at Private Employer in Barcelona. Full-time · Remote.
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