Frontend Developer (AI)

Emplay; United States; Remote; USD 110,000 - 180,000; Full time

Job summary

Emplay is seeking a Frontend Developer to join our team in the United States. The role focuses on building scalable Angular applications, leveraging standalone components and modern patterns to deliver high-performance UI and real-time data experiences.

You will work with RxJS, REST APIs, and state management to create robust, maintainable frontends, while collaborating with design and backend teams to ensure a polished user experience.

Qualifications

• Proficient in Angular 21+ with standalone components, signals, and modern Angular patterns.
• Strong understanding of RxJS, Observables, and memory management in asynchronous streams.
• Experience with WebSockets/SSE for real-time UI updates and efficient data rendering.
• Solid knowledge of semantic HTML, responsive CSS/SCSS, and accessible UI structures.
• Hands-on experience with Reactive and Template-driven forms, validation, and dynamic form state management.
• Experience consuming REST/HTTP APIs using Angular HttpClient with proper error handling and retries.
• Experience with state management patterns beyond local component state (signals, services, NgRx).
• Experience with data visualization libraries ( ngx-charts or equivalent) and transforming API data for charts.
• Understanding of token-based authentication, OAuth/OIDC, and route guards.
• Experience with Angular Material or similar UI libraries (dialogs, tables, forms, etc.).
• Proficiency with Git workflows, PRs, and clean commit history.
• Experience writing unit tests with Jest/Jasmine/Karma/Vitest and testing components/services.
• Commitment to code quality, DRY, SOLID principles, linting and formatting standards.
• Awareness of performance optimization and lazy loading in Angular apps.
• Ability to collaborate in code reviews and communicate trade-offs.

Skills

Angular 21+

RxJS & Reactive Programming

Real-time Communication

HTML5 & CSS/SCSS

Forms in Angular

API Integration

State Management

Data Visualization

Authentication & Authorization

Angular Material / Component Libraries

Git

Unit Testing

Code Quality & Clean Code

Angular Performance

Team Collaboration

Learning & Ownership

Accessibility (a11y)

E2E Testing

CI/CD

AI / LLM Product UI

Advanced Data Visualization

Canvas / SVG

Cloud / AWS

NgRx

Job description

Salary(CTC) offered- As per company standards

We are looking for a Frontend Developer to join our team.

Skillset Must-have

• Angular 21+ — hands-on experience with standalone components, signals, modern Angular patterns, dependency injection, lifecycle hooks, and a good understanding of Angular change detection and performance optimization.
• RxJS & Reactive Programming — good understanding of Observables, Subjects, operators such as map, switchMap, mergeMap, catchError, tap, debounceTime, distinctUntilChanged, takeUntil, etc.; understands subscriptions, unsubscription, memory leaks, and handling asynchronous streams.
• Real-time Communication – WebSockets / SSE — practical experience working with WebSockets and/or Server-Sent Events. Should understand streaming data, connection lifecycle, reconnection/error handling, subscriptions, and updating the UI efficiently as real-time data arrives.
• HTML5 & CSS/SCSS — strong understanding of semantic HTML, responsive layouts, CSS fundamentals, Flexbox/Grid, and SCSS. Should be comfortable building and styling UI without depending entirely on CSS frameworks.
• Forms in Angular — hands-on experience with both Reactive Forms and Template-driven Forms, including form validation, custom validators, dynamic forms, nested/form groups, form arrays, error handling, and managing form state.
• API Integration — experience consuming REST/HTTP APIs using Angular's HttpClient, handling loading/success/error states, request cancellation, retries where appropriate, interceptors, and asynchronous API responses.
• State Management — understanding of state management beyond component-local variables. Experience with Angular Signals, shared services, RxJS-based state, or state management libraries.
• Data Visualization – Charts & Graphs — experience working with charts/graphs and transforming API data into visualization-ready formats. Experience with ngx-charts or similar charting libraries is highly preferred.
• Authentication & Authorization — understanding of token-based authentication and OAuth/OIDC concepts, including access tokens, refresh tokens, token expiration, login/logout flows, route guards, and HTTP interceptors.
• Angular Material / Component Libraries — practical experience with Angular Material or similar UI component libraries, including dialogs, tables, forms, menus, tooltips, buttons, pagination, and theming/customization.
• Git — comfortable with branching, pull requests, merging/rebasing, resolving conflicts, reviewing changes, and maintaining a clean and meaningful commit history.
• Unit Testing — understanding of what should be tested and why. Experience with Jest, Jasmine, Karma, Vitest, or similar frameworks; able to write tests for components, services, utilities, and important business logic.
• Code Quality & Clean Code — follows readable, maintainable, reusable code practices. Understands DRY, basic SOLID principles, separation of concerns, appropriate component/service design, performance optimization, and working within linting/formatting standards.
• Angular Performance — awareness of unnecessary change detection, efficient rendering of lists and large datasets, avoiding memory leaks, lazy loading, appropriate use of signals/RxJS, and optimizing components that handle frequently changing or streaming data.
• Team Collaboration — comfortable participating in code reviews, addressing review feedback, communicating blockers, discussing technical trade-offs, and pairing with other developers when needed.
• Learning & Ownership — demonstrates the ability to learn new technologies and patterns, investigate unfamiliar problems independently, close knowledge gaps, and take ownership of tasks through completion.

Good-to-have

• Accessibility (a11y) — understanding of semantic HTML, keyboard navigation, ARIA, focus management, and basic accessibility practices.
• E2E Testing — exposure to Playwright, Cypress, or similar end-to-end testing frameworks.
• CI/CD — basic understanding of frontend build and deployment pipelines, environments, build configurations, and automated checks.
• AI / LLM Product UI — experience building AI-powered interfaces such as chat applications, streaming responses, typing indicators, conversation history, markdown rendering, file uploads, or token-by-token response streaming.
• Advanced Data Visualization — experience with interactive charts, dashboards, large datasets, real-time chart updates, custom chart configurations, or libraries such as ngx-charts, D3.js, Chart.js, ECharts, etc.
• Canvas / SVG — exposure to SVG, Canvas, or visualization libraries for building interactive diagrams, graphs, flow editors, or node-based interfaces.
• Cloud / AWS — basic familiarity with AWS services commonly used by frontend applications, such as Cognito, S3, CloudWatch, or API Gateway.
• NgRx — basic understanding of NgRx and its core architecture, including the unidirectional data flow pattern; familiarity with when and why to use NgRx for predictable state management in larger Angular applications.