Senior / Staff AI Platform Engineer

Stack

Responsibilities

• ▹Build the core AI platform powering a copilot in an AI-native trading experience
• ▹Develop a high-performance Rust backend for streaming, tool execution, caching, orchestration
• ▹Design robust APIs and runtime components (auth, rate limits, auditing, tracing, retries, fallbacks)
• ▹Build safe action infrastructure: order previews, confirmation flows, idempotent tool calls, audit logs
• ▹Partner with product and frontend on AI-native UX patterns
• ▹Develop deep business domain understanding for secure platform primitives

Requirements

• ▹At least 8 years of experience, strong proficiency in any programming language
• ▹Strong systems programming fundamentals: concurrency, networking, profiling, reliability, distributed systems
• ▹Experience designing and operating production APIs with observability, correctness and security
• ▹Ability to define platform requirements and deliver architecture end-to-end
• ▹High self-motivation

Nice to have

• ▹Strong Rust experience (Tokio/async, service design, performance tuning)
• ▹Experience building AI/ML inference, tool execution, streaming/retrieval platforms
• ▹Trading systems experience (order lifecycle, execution, risk, auditability)
• ▹Deep trading/asset-class/margin experience
• ▹Postgres performance and data modeling in high-throughput systems

Soft skills

What we offer

• ▹Base salary range $200,000-$350,000

About the company

Clear Street is a cloud-native brokerage infrastructure company founded in 2018, replacing legacy capital markets clearing and custody systems and supporting billions in daily trading volume.