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Photon

Builds custom software and AI for big companies

Frontend Engineer - Angular

Frontend EngineeringConfirmed live in the last 24 hours
Full-timeDallas, TX, USAIn-person

About the Job

Requirements

  • Angular Expertise: 8+years of experience with Angular (v16/17+ preferred). Strong mastery of Standalone Components, Signals, and the provideRouter/provideHttpClient patterns.
  • RxJS Mastery: Deep understanding of reactive programming to handle complex asynchronous data streams and event orchestration.
  • Modern CSS/Styling: Proficiency in Tailwind CSS or SCSS to build Generative UI components that can adapt their layout based on the agent's output.
  • State Management: Proven experience with NgRx, Akita, or Signal-based state management in enterprise-scale applications.
  • API Integration: Experience working with RESTful APIs and real-time streaming protocols. Familiarity with OpenAI /Anthropic API structures is a plus.
  • Testing: Commitment to quality through unit testing and E2E testing (Cypress)

Responsibilities

  • Real-time Streaming Interfaces: Implement robust handling for Server-Sent Events (SSE) and WebSockets to display real-time token streaming and agent status updates as they happen.
  • Complex State Management: Utilize Angular Signals or NgRx to manage the highly dynamic states of an AI agent (Idle, Planning, Fetching Data, Executing Code, Awaiting Approval).
  • AI Observability UI: Build intuitive dashboards that visualize Chain-of-Thought reasoning, allowing users to see the references, citations, and logic used by the agent to reach a conclusion.
  • Human-in-the-Loop (HITL) Components: Develop specialized UI components that allow users to pause, edit, or approve an agent's proposed plan before it executes.
  • Performance Optimization: Ensure the UI remains performant even when handling large volumes of streaming data and complex visualizations.
  • Collaboration with AI Engineers: Work closely with Backend and AI engineers to define JSON schemas and API contracts that support the unique needs of agentic interaction.

Desired Qualifications

  • Experience with Canvas or SVG-based visualizations to show agent decision trees or multi-agent handoffs.
  • Familiarity with Web Workers for handling heavy client-side processing without blocking the UI thread.
  • A portfolio showcasing AI-integrated products or highly interactive real-time dashboards.

About the Company

Photon

Builds custom software and AI for big companies

Photon designs, builds, and runs custom software for large companies, combining an in-house creative agency with its own engineering teams. Its flagship client work includes rebuilding Samsung's US online store as a set of smaller linked services and creating Olive Garden's mobile app, which lets diners join the waitlist from their phones instead of waiting at the door. Clients hire Photon's teams to plan and code their apps, websites, and AI tools and to keep them running afterward, paying for the engineers and designers assigned to each project. Photon is privately held and based in London, with its US arm in Dallas and engineering centers in Chennai and Bengaluru.

Company size
5,001-10,000
Company stage
Not listed
Total funding
Not listed
Headquarters
London, United Kingdom
Founded
Not listed

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