Frontend Software Engineer – React & TypeScript

Select Source Solutions•Greenbelt, MD

5d•Remote

About The Position

The Frontend Software Engineer builds and maintains modern, accessible, highly usable production web applications using React, TypeScript, modern JavaScript, HTML, and CSS. This hands-on role translates UI/UX designs and product requirements into responsive, intuitive, production-ready interfaces and works closely with designers, product stakeholders, backend engineers, and other developers. Success involves delivering interfaces that are intuitive, accessible across devices and audiences, well tested, and maintainable. The role includes developing reusable React components, integrating applications with APIs and backend services, implementing asynchronous application behavior, creating automated tests, participating in collaborative Git and CI/CD workflows, and contributing to technical design discussions and engineering standards. The position is remote, requires no routine travel, and requires the ability to obtain and maintain a U.S. Government security clearance.

Requirements

Bachelor's degree in Computer Science, Engineering, Information Technology, or a related technical field.
At least 3 years of professional experience developing production web applications using React and TypeScript.
Strong hands-on experience with modern React development, including hooks, reusable components, and composition patterns.
Strong TypeScript and modern JavaScript development skills.
Strong HTML and CSS fundamentals, including semantic markup, responsive design, layouts, and accessibility.
Experience integrating front-end applications with REST/JSON APIs.
Experience managing asynchronous application behavior, including loading states, error handling, pagination, and authenticated requests.
Experience developing automated unit and component tests with Vitest, Jest, React Testing Library, or comparable tools.
Experience with end-to-end testing technologies such as Playwright, Cypress, or comparable frameworks.
Professional experience using Git in a collaborative software development environment, including branching and code-review workflows.
Experience working with CI/CD pipelines as part of modern software-development and deployment practices.
Familiarity with modern build and package-management technologies such as Vite, npm, or Yarn.
Strong communication and collaboration skills and the ability to work effectively with designers, engineers, and other stakeholders.
Ability to obtain and maintain a U.S. Government security clearance.

Nice To Haves

Experience building or contributing to reusable component libraries or enterprise design systems.
Experience with design-system technologies and approaches such as design tokens, theming, Storybook, or headless UI components.
Experience with Material UI (MUI), USWDS, Sass, StyleX, or similar front-end technologies.
Experience working closely with UI/UX designers to translate designs into reusable production components.
Experience building complex forms or data-intensive user interfaces involving filtering, searching, tables, or data visualization.
Experience with technologies such as Zod, TanStack Form, or TanStack Table.
Experience with front-end state-management technologies such as Zustand or comparable tools.
Familiarity with reactive development patterns or technologies such as RxJS.
Experience with modern TypeScript development patterns, including discriminated unions, exhaustive matching, or typed functional programming.
Experience with Astro or another static-site generation framework.
Experience deploying front-end applications within AWS environments, including Amazon S3 and CloudFront.
Familiarity with SSO, authentication, authorization, or edge-authentication patterns.
Experience supporting applications within federal government, regulated, or security-conscious environments.

Responsibilities

Design, build, and maintain production web applications and user interfaces using React and TypeScript.
Develop reusable React components using modern patterns, including hooks and component composition.
Translate UI/UX designs and product requirements into responsive, accessible, production-ready applications.
Build interfaces using semantic HTML and modern CSS practices.
Develop maintainable styling solutions using technologies such as Sass, Material UI (MUI), USWDS, StyleX, or comparable frameworks.
Work with UI/UX designers to refine user flows, maintain visual consistency, and ensure designs can be effectively implemented.
Integrate front-end applications with REST/JSON APIs and backend services.
Implement asynchronous application behavior, including loading states, error handling, pagination, and authenticated requests.
Develop automated unit, component, integration, and end-to-end tests.
Participate in Git-based workflows involving branching, merge requests, pull requests, code reviews, and releases.
Work with CI/CD pipelines to support automated testing, application builds, and deployment.
Use modern front-end build tools and package-management technologies such as Vite, Yarn, npm, and private package registries.
Participate in technical design discussions and evaluate implementation approaches based on usability, maintainability, performance, schedule, and technical constraints.
Collaborate with backend engineers, systems engineers, analysts, product stakeholders, and other technical team members.
Participate in code reviews and help maintain front-end engineering and development standards.
Troubleshoot and resolve application, integration, browser, performance, and user-interface issues.