What you'd do

• Define technical direction for Coupang Pay's core payment domains.
• Design and operate large-scale fintech systems including Coupay one-touch payments.
• Lead architecture for back-office, settlement, and reconciliation systems.
• Partner with accounting, treasury, and fintech teams on operational stability.
• Drive code reviews, design reviews, and technical guidance across the team.

What they want

• At least 15 years of backend engineering experience at production scale.
• Designed and operated large-scale distributed systems with Java and Spring.
• Technical ownership of complex services or domains end-to-end.
• System design balancing performance, stability, data integrity, and security.
• Track record turning ambiguous problems into business impact.

Nice to have