Senior Mobile App Engineer

OSL • Jakarta Metropolitan Area, Indonesia

Location Jakarta Metropolitan Area
Job Type Full-time
Posted May 31, 2026

Role Description

Job Responsibilities

  • Responsible for the development, maintenance, and optimization of the OSL Indonesia Exchange mobile app.
  • Participate in the development of core mobile features, including user registration, login, KYC, account security, market data, K-line charts, order placement, trading, account assets, deposits, withdrawals, notifications, and user center.
  • Integrate with exchange backend APIs and handle business data related to accounts, orders, trades, balances, assets, wallets, and compliance workflows.
  • Develop and optimize real-time market data features, including WebSocket connections, order book display, price updates, and K-line chart interactions.
  • Work closely with product, UI/UX, backend, QA, DevOps, security, compliance, and headquarters engineering teams.
  • Improve app performance, startup speed, page response time, network stability, crash rate, and user experience.
  • Participate in app release...

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