Requirements: - Familiar with JavaScript, JSON, ISO8583 and XML - Experience in building API - Database and SQL - Any programming language - Familiar with OAuth - Experience integrating to internal/external parties - Experience in unit testing - Experience in banking or financial service is a plus **Job Types**: Full-time, Contract Contract length: 12 months **Salary**: From Rp7,000,000 per month **Education**: - S1 (required) **Experience**: - Backend: 2 years (required) Ability to Relocate: - Jakarta: Relocate before starting work (required)