Digital Banking Onboarding System
Backend services for onboarding flows, account creation, and banking system handoff.
OnboardingAccount creationIntegration
Building backend systems for fintech and digital banking
Duy Doan
Java Backend Engineer
I work on practical backend systems: APIs, integrations, data flows, and production services that need to be stable and easy to maintain.
About
A short note
Duy Doan is a java backend engineer working with backend systems in fintech and digital banking.
I like simple service boundaries, clear data flows, and systems that are predictable in production. Most of my work sits around APIs, banking integrations, and operational backend services.
Stack
Tools I use
Backend
JavaSpring BootPostgreSQLRedis
Messaging & Data
KafkaDynamoDB
Delivery
DockerKubernetesArgoCDGitHub Actions
JavaSpring BootPostgreSQLRedisKafkaDynamoDBDockerKubernetesArgoCDGitHub Actions
Experience
What I usually work on
Java Backend Engineer
Building backend systems for fintech and digital banking
Backend Systems
Backend services for digital banking journeys and internal operations.
Integration work across KYC/eKYC providers, third-party systems, and core banking.
Production-focused engineering with attention to reliability, maintainability, and troubleshooting.
Projects
A few areas of work
KYC / eKYC Integration
Integration layer for identity verification, provider callbacks, and review workflows.
KYC/eKYCProvidersWorkflow
Fee Management / Deposit Services
Services around deposit flows, fee handling, and operational support.
DepositFeesOperations