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Jobs at Project Eleven

3 open roles read nightly from companies’ own hiring pages. Each one links to the original ad.

1–3 of 3 jobs

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  • Social Media Lead

    3 weeks ago

    Project Eleven · United States

    RemoteFull-timeLead / staffMarketing

    Project Eleven is building security infrastructure for the post-quantum era.

  • Senior Security Engineer

    5 months ago

    Project Eleven · United Kingdom

    RemoteFull-timeSeniorSecurity

    We're hiring a Senior Security Engineer to own the security engineering of our institutional product and platform. This is a hands-on, build-it-yourself role: you'll threat model our systems, design and implement secure architecture, harden our AWS infrastructure, own security…

  • Senior Backend Engineer

    10 months ago

    Project Eleven · United Kingdom

    RemoteFull-timeSeniorEngineering

    We're looking for a Senior Backend Engineer to join our growing Product Engineering team. You'll play a pivotal role in building the canonical infrastructure that protects institutional digital-asset operations in a post-quantum world.

Updated 07 Nov 2026 10:21 UTC from the OptiTalent job library.