Senior / Staff Platform Software Engineer

2 hours, 19 minutes ago
Full-time
Lead
Software Development
Clear Street

Clear Street

Clear Street is a financial technology and brokerage company based in New York, founded in 2018. It modernizes capital markets infrastructure with a cloud-native, end-to-end prime brokerage platform designed for sophisticated investors and institutions. The company aims to provide access to every asset in every market through a unified platform that emphasizes speed, transparency, and scalability. Clear Street operates without legacy systems, offering efficient access to clearing, settlement, custody, and financing services. It processes over $10–$15 billion in daily trading volume and clears about 2.5% of the U.S. equity market. The company has grown to approximately 501–1,000 employees across five global offices, including locations in Chicago and London. Its services include a proprietary prime brokerage platform, support for U.S. equities and options, and a trading app launched in 2026 for sophisticated individual investors. Clear Street serves a diverse clientele, including hedge funds, family offices, and professional traders, while expanding access to individual investors.

financial services
501-1000
Founded 2018

Description

  • Build the core AI platform powering an AI-native trading copilot.
  • Develop a high-performance Rust backend supporting streaming responses, low-latency tool execution, caching, and model-tool orchestration.
  • Design APIs and runtime components for authentication, authorization, rate limiting, auditing, tracing, retries, and fallbacks.
  • Build safe trading-action infrastructure, including deterministic order previews, confirmation flows, idempotent tool calls, and audit logs.
  • Partner with product and frontend teams to deliver streaming, grounded, explainable, and reversible AI experiences.
  • Translate trading-domain requirements into secure, resilient platform primitives.
  • Operate production services with strong reliability, observability, correctness, and security.

Requirements

  • 8+ years of experience and strong proficiency in a programming language.
  • Strong systems programming fundamentals, including concurrency, networking, performance profiling, reliability, and distributed systems.
  • Experience designing and operating production APIs and services.
  • Ability to define platform requirements, design architecture, and deliver solutions end to end.
  • Strong self-motivation and willingness to work in unfamiliar technical or business areas.
  • Production Rust experience, including Tokio/async, service design, and performance tuning (preferred).
  • Experience with AI/ML inference platforms, tool execution, streaming, or retrieval and grounding systems (preferred).
  • Experience with trading systems, order lifecycles, execution, risk checks, auditability, or mission-critical financial infrastructure (preferred).
  • Experience with multi-asset trading, margin types, or Postgres performance and data modeling in high-throughput systems (preferred).
  • Familiarity with Rust, Postgres, TypeScript, React or React Native, and LLM APIs or model serving.

Benefits

  • Base salary range of $200,000–$350,000, excluding bonuses and equity.
  • Company equity and 401(k) matching.
  • Gender-neutral parental leave.
  • Medical, dental, and vision insurance.
  • In-office lunch stipends, stocked kitchens, and happy hours.
  • Remote-friendly role and collaborative workplace.

Interested in this position?

Apply directly on the company website

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