Backend Developer (Korea)
BJAK
Seoul
Workplace: RemoteFull timeFunction: Software EngineeringSkills: ["Debugging","Reliability","Security","Data-quality","Practical-tradeoffs"]Build the backend systems powering BJAK’s AI Neobank app, designing reliable APIs, workflows, and financial infrastructure that scales across markets, partners, and millions of users. Own services across onboarding, accounts, payments, cards, transfers, rewards, travel, FX, KYC, and risk flows. Integrate with partners, payment providers, AI services, and third-party platforms, while driving backend quality for reliability, security, latency, observability, and incident handling.

