The vacancy provides a good overview but lacks compensation details and explicit responsibilities.
no salary info
Job description
Flipster is a high-performance crypto perpetuals trading platform on a mission to create the most efficient, frictionless, and high-performance trading experience. Engineered by traders and optimized for trading, Flipster combines zero spreads, instant execution, and capital efficiency to deliver a platform where performance is the product.
Requirements
### Required experience:
- 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
### Preferred:
- 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
Conditions
### What you'll have access to:
- 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.
About Flipster
Flipster is a high-performance cryptocurrency perpetuals trading platform founded in 2021, offering zero-fee spot and futures trading with leverage up to 100x across 200+ tokens. The platform serves retail and professional traders globally with deep liquidity, instant execution, and advanced DeFi yield optimization tools.