Mobile Networking Engineer

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🕒 May 25

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Flipster

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2021

₿ Crypto

💳 Fintech

🛍️ eCommerce

Crypto • Fintech • eCommerce

Flipster is a high-performance crypto perpetuals trading platform engineered by traders and optimized for trading. It offers features like zero spreads on major perpetual pairs, ultra-fast execution, and precision order fills, making it suitable for both experienced traders and newcomers. Users can also passively earn yield on their cryptocurrency balances while trading, enhancing capital efficiency and market responsiveness.

📋 Description

• Own the SDK-level connectivity layer for our iOS and Android apps in mainland China • Focused on transport-layer logic, connection management, and client-side resilience strategies for users in challenging network environments

🎯 Requirements

• 4+ years of mobile SDK development on iOS or Android (both preferred) with significant time spent on the networking layer • Direct hands-on experience shipping apps to mainland China users with measurable reliability improvements you can describe • Strong understanding of TLS, TCP behavior, and modern transport protocols (HTTP/2, HTTP/3, QUIC, WebSocket) • Comfortable with Wireshark, tcpdump, Charles, and platform-specific network debugging tools • Based in mainland China and able to test directly against real regional network conditions • Experience at fintech, exchange, streaming, or gaming companies with mainland China users • Familiarity with native networking stacks (NSURLSession, OkHttp, Cronet) and how to customize them • Background in protocol design or transport-layer optimization

🏖️ Benefits

• A real, hard, well-resourced problem • A team that respects deep network expertise • Autonomy on architecture and protocol decisions • Direct impact on user experience for our entire mainland China user base