Front End Architect - Capstone Search Advisors

Our client, a leading fintech firm in New York City, is building a real-time trading platform with demanding performance and usability requirements. They are seeking a Senior Web Developer / Front-End Architect to enhance their front-end architecture and accelerate delivery of high-performance, data-intensive applications.

This is a unique opportunity to shape frameworks, tools, and patterns that will streamline development, enable real-time responsiveness, and directly impact trading operations.

Responsibilities

• Architect & Innovate: Evolve the front-end architecture for a real-time trading system; build frameworks and reusable components to speed delivery of interaction and data-editing screens.

• Tooling & Framework Development: Evaluate and integrate technologies such as direct browser-to-gRPC communication (Connect-ES), TypeScript code generation from gRPC protos (Buf), RTK Query, and AI-powered UI/screen generation.

• Collaborate: Partner with back-end developers on efficient APIs/ViewModels and with front-end engineers to deliver fast, reliable user experiences.

• Lead by Example: Champion best practices in state management, entity normalization, rapid prototyping, and framework-driven development.

Requirements

Must-Have:

• 7+ years of professional web development experience with deep expertise in React and TypeScript

• 5+ years of experience with C#.NET

• Strong background in real-time, data-intensive applications (trading, dashboards, or collaborative apps)

• Hands-on experience integrating with gRPC, SignalR, or WebSocket APIs

• Proven ability to design frameworks/libraries that accelerate development

• Strong knowledge of state management, normalized data, and client-side caching

• Experience with data grids (AG Grid, Kendo UI, or similar) and high-frequency UI updates

Nice to Have:

• Code generation tools (Buf, OpenAPI TypeScript clients, etc.)

• Experience with AI-driven dev tools or low-code platforms

• Knowledge of distributed caches, messaging, or middle-tier scaling

• Bachelor s degree (or higher) in a technical field

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