Unlimit is a global fintech infrastructure company, founded in 2009 and now operating from 17 offices worldwide with a team of 700+. The company builds payment plumbing - a proprietary Unified Payment Platform that integrates over 1,000 payment methods into a single system. For security teams, that's a significant attack surface: a platform handling payment processing, card acquiring, multicurrency business accounts, card issuing, Banking-as-a-Service, and crypto on- and off-ramps across borders.
The threat model here is concrete and high-stakes. Financial infrastructure at this scale means defending transaction integrity across 1,000+ payment method integrations, protecting multicurrency systems from manipulation, securing crypto bridge points where traditional finance meets decentralized assets, and hardening Banking-as-a-Service endpoints that expose core financial functions to third-party developers. The technical domains - payment processing, financial infrastructure, multicurrency systems, crypto integration - each carry distinct risk profiles and regulatory obligations spanning multiple jurisdictions.
Security work at Unlimit likely spans the full stack: securing API surfaces that connect to global payment networks, fraud detection across diverse transaction types, cryptographic key management for crypto ramp operations, PCI DSS compliance across a sprawling merchant base, and securing the data pipelines that move sensitive financial information between legacy banking rails and modern fintech endpoints. The platform serves businesses from startups to enterprises, meaning the security team operates against both high-volume automated fraud and targeted attacks on high-value accounts.
