Backend Developer
Bjak · Remote · Seoul, Korea ·
COMPENSATION
€•• – ••k
Listed on the employer's job board (Ashby)
- Fully remote (Korea only)
- Fintech & Neobank
- English required
- Fast hiring process
BJAK is expanding its financial services beyond insurance into spending, saving, and investing across Southeast Asia. This role involves building the backend infrastructure for their AI-driven Neobank application, ensuring reliable transactions and scalable workflows for millions of users.
What you'll do
- Build backend services and APIs for payments, accounts, KYC, and risk flows
- Design reliable systems for real customer transactions and operational workflows
- Integrate with financial partners, payment providers, and AI services
- Ensure backend quality regarding security, latency, and data integrity
- Collaborate with product and mobile teams to launch features safely
- Automate repeatable processes and simplify existing system flows
What you'll need
- Strong backend engineering experience with production systems
- Solid understanding of APIs, databases, auth, queues, and events
- Experience building services at meaningful scale for real customers
- Strong mindset for debugging, reliability, security, and data quality
- Ability to balance speed, correctness, scalability, and maintainability
- Based in Korea with strong English communication skills
Nice to have
- Experience in fintech, payments, banking, or digital wallets
- Background in KYC, fraud detection, or risk management systems
How you'll work
- Fully remote work arrangement
- Candidates must be currently based in Korea
- Primary working language is English
Hiring process
- Online assessment or practical task
- Technical interview
- Final round with CEO
- Targeting one week from start to offer for strong candidates