Senior Software Engineer, UI Development

The role

You will lead the user-facing UI and own its architecture from the ground up. You will drive the design and delivery of product experiences and build high-performance visualizations of large datasets.

What you will do

• Drive the design and delivery of new product experiences from concept to shipped UI.
• Lead the frontend architecture including application structure, state management, and design systems.
• Integrate the UI with agentic services, streaming responses, and real-time updates.
• Build high-performance visualizations of large, fast-moving datasets.
• Partner with product, design, and backend engineers to shape requirements.
• Establish frontend engineering standards, accessibility, testing, and CI practices.

Required qualifications

• 4+ years of professional frontend / UI engineering experience shipping production web applications.
• Strong, hands-on experience with both Angular and React.
• Command of the modern UI stack: TypeScript, component-driven architecture, state management (e.g., Redux, Zustand, NgRx, signals), modern build tooling (Vite, esbuild, etc.), and testing (Jest, Vitest
• Demonstrated ability to design and build a UI architecture from scratch.
• Experience integrating with real-time and streaming backends (WebSockets, SSE).
• Experience designing UI for asynchronous, long-running operations.
• Interest in and experience with building interfaces for AI / agentic systems.
• Strong product sense and attention to detail.

Nice to have

• Experience with data visualization libraries (D3, deck.gl, WebGL / Canvas-based rendering) or mapping frameworks (Mapbox, MapLibre, Cesium).
• Experience building design systems or component libraries used across multiple teams.
• Familiarity with backend development (Node, Python) and cloud deployment of frontend assets.
• Experience designing for operators in high-stakes or time-critical environments.

Benefits

• Above-market salary, equity, and benefits package.
• Early Series A Equity
• Excellent health, dental, and vision coverage
• 401(k) match - up to 4% of your salary
• Flexible PTO
• Daily office lunches in NYC

Before you apply

• To conform to U.S. Government technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected

About the company

DS creates systems that power the next generation of radio spectrum intelligence. They collect radio data, train neural networks to decipher it, and run them on small chips.