EU remote
Founding Platform Engineer
About this role
We are hiring on behalf of our client, a fast-growing innovator in the crypto and decentralized finance space who is seeking a Founding Platform Engineer (Staff+ level) to join the team. This organization is behind a leading decentralized exchange (DEX) on HyperEVM, having achieved significant revenue milestones with an ultra-lean team. The client is now expanding its technical architecture to build an advanced, mobile-first crypto trading platform (spot + perps) alongside a novel, original social product featuring cutting-edge mechanisms.
As the first and only engineer in this specialized domain, the incoming candidate will take an original product vision and turn it into a robust, high-performance system—holding the entire architecture and the smallest details simultaneously. The operational environment is primarily asynchronous, highly independent, and built for top-tier developers who can scale infrastructure from zero to massive daily trading volumes while maintaining absolute reliability.
Requirements Platform Ownership: Own the core platform, including the data layer, rewards engine, notifications, the API surface, and overall system reliability. Trading Engine Integration: Integrate perpetual trading engines through Hyperliquid, alongside spot trading via Jupiter and Relay. Data Harmonization: Aggregate and unify conflicting data providers (such as Zerion, CoinGecko, Mobula, Alchemy, and Hyperliquid) into a single, cohesive source of truth.
High-Performance Data Delivery: Serve heavy data rapidly by implementing resilient caching mechanisms that survive traffic stampedes and fan-out structures that hold under pressure. Cross-Chain Abstraction: Design architecture that makes a single USDC balance across multiple chains entirely invisible and seamless to the end user. Peak Performance & Reliability: Maintain absolute uptime during peak market volatility; ensure the application never lags or crashes when it matters most, guaranteeing users can always close positions.
Requirements Proven track record of engineering resilience, including keeping a high-stakes system alive through massive traffic spikes and determining graceful degradation strategies in advance. Extensive experience building financial rewards and accounting systems that withstand retries, prioritizing idempotency, replay safety, and precise lot tracking. Deep understanding of end-to-end latency budgets (from a user's tap to screen rendering).