Front-End Developer Role

OpenDataJobs•Washington, DC

About The Position

The work Front-End Developers build the browser experience people use to understand information and complete work. Working in modern component frameworks such as React, they translate user and product needs into components, interactions, forms, navigation, and stateful workflows using TypeScript or JavaScript, HTML, and CSS. The role owns more than appearance. You structure state and data flow, integrate APIs, handle loading and failure states, protect browser-side boundaries, and test behavior across users, devices, and browsers. You use semantic HTML first and add Accessible Rich Internet Applications (ARIA) patterns when native elements do not provide the interaction a component needs. Accessibility and performance are part of implementation, not finishing steps. Front-End Developers work with designers, researchers, content specialists, back-end engineers, security teams, and users to create interfaces that are understandable, keyboard-operable, resilient, responsive, and maintainable. What you'll build: Pages, component libraries, design-system implementations, and reusable component patterns in a modern framework such as React. Forms, navigation, tables, dashboards, search, filtering, and complex stateful workflows. API integrations with clear loading, empty, success, validation, and error states. Accessible interactions tested with semantic markup, keyboard use, focus management, and assistive technologies. Unit, component, integration, and browser tests plus performance and client-side security improvements.

Requirements

Professional experience with a modern component framework (React, Angular, Vue, or equivalent), TypeScript or JavaScript, semantic HTML, modern CSS, and component-based design.
Sound judgment about state structure, data flow, reusable components, forms, routing, and API integration.
Working knowledge of Web Content Accessibility Guidelines (WCAG), keyboard interaction, focus management, and ARIA patterns.
Experience with automated tests, browser developer tools, version control, code review, and delivery pipelines.
Ability to diagnose rendering, network, performance, compatibility, and client-side security problems.

Nice To Haves

An opening may specify a React framework, state-management approach, build tool, test stack, design system, visualization library, content-management platform, or browser-support matrix.
Some work may require Section 508 conformance, documented accessibility testing, internationalization, or performance targets.
AI-enabled interfaces may add streaming responses, citations, feedback controls, human review steps, and clear communication of system status and uncertainty.

Responsibilities

Build the browser experience people use to understand information and complete work.
Translate user and product needs into components, interactions, forms, navigation, and stateful workflows using TypeScript or JavaScript, HTML, and CSS.
Structure state and data flow.
Integrate APIs.
Handle loading and failure states.
Protect browser-side boundaries.
Test behavior across users, devices, and browsers.
Use semantic HTML first and add Accessible Rich Internet Applications (ARIA) patterns when native elements do not provide the interaction a component needs.
Ensure accessibility and performance are part of implementation.
Create interfaces that are understandable, keyboard-operable, resilient, responsive, and maintainable.
Build pages, component libraries, design-system implementations, and reusable component patterns in a modern framework such as React.
Develop forms, navigation, tables, dashboards, search, filtering, and complex stateful workflows.
Implement API integrations with clear loading, empty, success, validation, and error states.
Ensure accessible interactions tested with semantic markup, keyboard use, focus management, and assistive technologies.
Perform unit, component, integration, and browser tests plus performance and client-side security improvements.