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.
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