Top Tech Jobs & Startup Jobs in NYC, NY

Build and scale frontend systems for a retail trading platform, including accessible web applications, reusable UI libraries, interactive real-time charts, performance optimizations, API and WebSocket integrations, client-side state management, and CI/CD pipelines. Collaborate closely with designers and backend engineers to deliver intuitive, reliable interfaces for fast-moving markets.

Build and ship a production iOS trading application with live market data, complex order types, multi-venue execution, interactive charts, wallet integrations, biometric authentication, and secure on-device key management. Develop gesture-driven interfaces, integrate REST APIs and WebSocket streams, manage cached client state, and maintain CI/CD pipelines. The role requires strong iOS performance expertise, App Store release experience, real-time systems knowledge, UI/UX judgment, and architectural ownership.

Build backend infrastructure for a real-time blockchain trading platform, including risk and liquidation engines, state machines, distributed services, market-data pipelines, venue integrations, REST and WebSocket APIs, and deployment automation. Optimize asynchronous Rust systems for high throughput, reliability, and low latency. Responsibilities include database and schema design, performance tuning, monitoring, alerting, and production operations in an in-person engineering environment.

Build foundational blockchain infrastructure for a high-performance trading platform. Responsibilities include implementing consensus protocols and state machines, integrating Ethereum-compatible execution clients, developing cryptographic validator authentication and signature aggregation, optimizing block times and transaction throughput, improving state storage, and designing scalable P2P systems. The role requires strong Rust, distributed systems, cryptography, networking, and low-level storage expertise, with in-person collaboration and U.S. work authorization.