Backend Developer (Germany)

Build and scale the core backend systems behind BJAK’s AI Neobank app, including reliable APIs and workflows for onboarding, accounts, payments, cards, transfers, rewards, travel, FX, KYC, and risk flows. Design dependable infrastructure for real customer transactions, integrate with partners and payment providers, and own backend quality across reliability, security, latency, observability, data integrity, and incident handling. Collaborate with product, frontend, mobile, and AI teams to ship features quickly and safely.