Senior / Staff Platform Software Engineer
Clearstreet · Remote
About this role
**Clear Street — Senior / Staff Platform Software Engineer** Clear Street is modernizing the brokerage ecosystem. Founded in 2018, we’re replacing legacy infrastructure across capital markets with a cloud-native clearing and custody system integrated with central clearing houses and exchanges—supporting billions in trading volume per day. **The Team** The Clear Street Active team’s mission is best execution for every asset class in every market. Active is building a new, state-of-the-art, cloud-based trading platform for high-performance traders, with liquidity access across multiple asset classes, advanced charting, and sophisticated order handling for both active trader and institutional workflows. **The Role** - Build the core AI platform powering a copilot inside a new, AI-native trading experience - Develop a high-performance Rust backend for streaming responses, low-latency tool execution, caching, and reliable orchestration of models + tools - Design robust APIs and runtime components for AI capabilities: authentication/authorization, rate limits, auditing, tracing, retries, and fallbacks - Build safe action infrastructure for trading workflows: deterministic order previews, confirmation flows, idempotent tool calls, and comprehensive audit logs - Partner with product and frontend to enable great AI-native UX patterns (streaming, citations/grounding, “why” explanations, reversible actions) - Develop a deep understanding of the business domain and translate it into secure, resilient platform primitives **Tech Stack** Rust (backend), Postgres, TypeScript, React / React Native, LLM APIs / model serving **Requirements** - At least 8 years of experience and strong proficiency with any programming language - Strong systems programming fundamentals: concurrency, networking, performance profiling, reliability, and distributed systems patterns - Experience designing and operating production APIs/services with strong observability, correctness guarantees, and security considerations - Ability to work with stakeholders to define platform requirements, design the architecture, and deliver end-to-end - High degree of self-motivation and willingness to jump into unfamiliar areas to solve problems **Bonus** - Strong Rust experience in production (Tokio/async, service design, performance tuning) - Experience building platforms for AI/ML inference, tool execution, streaming, or retrieval/grounding systems - Experience in trading systems (order lifecycle, execution, risk checks, auditability) or other mission-critical financial infrastructure - Deep experience with trading across asset classes, margin types, etc. - Experience with Postgres performance and data modeling in high-throughput systems **We Offer** - Base salary range: **$200,000 – $350,000** (base salary only; excludes bonuses/equity) - Competitive compensation packages, company equity, 401k matching - Gender neutral parental leave - Full medical, dental, and vision insurance - In-office benefits: lunch stipends, fully stocked kitchens, happy hours, great location, amazing views - Equal opportunity employer **#LI-Remote**
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