Developer API & Card Security Engineer

Company: Jack & Jill/External ATS

Location: London

Posted: March 27th, 2026

A VC-backed fintech company in London seeks a Product Engineer to build secure APIs for critical payment infrastructure. This role offers massive ownership within a lean team, directly influencing product direction. The ideal candidate is technically proficient in systems and network design, operates with a proactive mindset, and can effectively communicate technical details to various stakeholders. Join the mission of enhancing security for major clients globally. #J-18808-Ljbffr
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