React Developer

MetaPhase Consulting•Washington, DC

3h•Hybrid

About The Position

At MetaPhase, we believe Quirky is Cool and being authentic is the only way to be! We take the work we do very seriously and do a lot of important mission-focused work for our clients. We are individuals with different passions and strengths who take as much joy in the work we do as from those we work with. Today, we have a team that is invested in creating new solutions that lean forward, challenge the status quo, but also reflect our intimate knowledge of our customers’ business. Over the years we have fostered a culture in which we are united by shared values—passion, solidarity, generosity, curiosity, and boldness—and these come alive in the work we do and how we do it. Together, we know our people are our difference—for our clients and our colleagues. Are you ready to: Work alongside a dedicated and diverse set of people to offer honest advice and practical guidance to our clients? Learn and grow by taking advantage of every opportunity available to you? Be the difference and make it happen? MetaPhase is seeking an experienced Senior Frontend React Developer to join our team . The ideal candidate will have a strong background in designing, building, and maintaining efficient, high-quality, and performant web applications. You will set technical direction for React and TypeScript, ensure accessibility and performance are first class, and mentor a small team of developers. You will partner closely with product, design, security, and DevOps to deliver user centered features that meet federal compliance standards, including Section 508 and use of the U.S. Web Design System. The ideal candidate has a strong grasp of modern React patterns, Core Web Vitals, security minded development, and Agile delivery in a federal environment.

Requirements

7+ years of professional front end development experience
5 + years building production applications with React, including React 18 features and hooks
Strong TypeScript skills, component composition, and modern CSS approaches, CSS Modules or utility first, responsive design
Demonstrated leadership in accessibility, Section 508 and WCAG 2.1 or 2.2 AA, including audit experience with tools such as axe and manual screen reader testing
Experience with the U.S. Web Design System, or leadership on a comparable design system at scale
Proven API integration experience, REST and or GraphQL , auth flows, pagination, caching, and optimistic updates
Testing proficiency , Jest and React Testing Library, CI based test gating
Git based workflows, branch strategies, and feature flags, experience leading trunk based or GitFlow teams
Agile delivery experience, Scrum or Kanban, backlog refinement and release planning
Excellent written and verbal communication skills, able to work directly with federal stakeholders and vendors
Must be able to obtain Public Trust
Bachelor’s degree in Information Systems, IT Management, or related field

Nice To Haves

Portfolio and/or Github to demonstrate work.
Experience with other modern JavaScript frameworks and libraries (e.g., Angular, Vue.js).
Knowledge of CSS pre-processors, such as Sass or Less.
Experience with build tools and bundlers, such as Webpack, Parcel, or Rollup.
Familiarity with testing frameworks and libraries, such as Jest, Enzyme, or React Testing Library.
Exposure to web accessibility (WCAG) and internationalization (i18n) best practices.
Knowledge of modern web development tools, such as the Chrome DevTools , React DevTools , or Redux DevTools .

Responsibilities

Own front end architecture and standards for React 18 and TypeScript, including component patterns, state management, and routing
Design and build accessible interfaces that meet WCAG 2.2 AA, guide automated and manual accessibility testing, and lead remediation plans
Integrate with REST and GraphQL APIs, design resilient error handling, and work with backend teams on contract definitions
Establish performance budgets, track Core Web Vitals, and drive improvements using Lighthouse and WebPageTest
Maintain and extend a design system, USWDS based, including component governance, documentation, and versioning
Write and enforce high quality tests, unit and integration, using Jest and React Testing Library, and raise overall coverage
Conduct code reviews, mentor mid level and junior engineers, and facilitate technical workshops
Contribute to CI/CD and DevSecOps practices, dependency and SAST scanning, and secure supply chain practices
Prepare and maintain technical documentation, support ATO inputs, change control, and release notes
Collaborate with product and UX on discovery, story slicing, and acceptance criteria, refine epics and prioritize technical debt