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Mobile Networking Engineer

2 months, 2 weeks ago
China
Full-time
Mid Level
Mobile Engineer
Software Development
Android iOS TLS WebSockets Wireshark
Apply Now

Flipster

Flipster is a crypto perpetuals trading platform and cryptocurrency exchange focused on perpetual futures trading, emphasizing zero-spread trading on major perpetual pairs, fast execution, capital efficiency, and earn-while-you-trade functionality.

Financial Services
51-200
Founded 2021
View All Jobs 5

Description

  • Own the SDK-level connectivity layer for the iOS and Android apps in mainland China.
  • Design and improve transport-layer logic and connection management for mobile clients.
  • Develop client-side resilience strategies for users operating in challenging network environments.
  • Test and validate networking behavior directly against real regional network conditions.
  • Investigate and troubleshoot mobile network issues using platform-specific debugging tools and packet analysis tools.
  • Optimize app reliability and connectivity performance for Flipster’s mainland China user base.
  • Contribute to architecture and protocol decisions related to mobile networking.
  • Measure and deliver reliability improvements through hands-on networking work.

Requirements

  • 4+ years of mobile SDK development experience on iOS or Android, with both preferred.
  • Significant experience working on the networking layer of mobile applications.
  • Direct hands-on experience shipping apps to mainland China users with measurable reliability improvements.
  • Strong understanding of TLS, TCP behavior, and modern transport protocols including HTTP/2, HTTP/3, QUIC, and WebSocket.
  • Comfortable using Wireshark, tcpdump, Charles, and platform-specific network debugging tools.
  • Based in mainland China and able to test against real regional network conditions.
  • Experience in fintech, exchange, streaming, or gaming companies with mainland China users is preferred.
  • Familiarity with native networking stacks such as NSURLSession, OkHttp, and Cronet is preferred.
  • Background in protocol design or transport-layer optimization is preferred.

Benefits

  • A real, hard, well-resourced technical problem to solve.
  • A team that values deep network expertise.
  • Autonomy over architecture and protocol decisions.
  • Direct impact on the user experience for Flipster’s mainland China user base.

Interested in this position?

Apply directly on the company website

Apply Now

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