Senior Frontend Developer

Job Title:Senior Frontend Developer

Location:Washington, DC

Employment Type:Full-time Onsite

Check you match the skill requirements for this role, as well as associated experience, then apply with your CV below.

About the Role

We're looking for aSenior Frontend Developerto lead the development of engaging, scalable, and high-performance web applications. You'll work closely with product managers, designers, and backend engineers to turn complex business requirements into intuitive user experiences. As a senior team member, you'll help shape the frontend architecture, mentor junior developers, and advocate for best practices in modern UI development.

Key Responsibilities

Design and build responsive, user-centric web interfaces using modern JavaScript frameworks (React, Angular, or Vue).

Translate product requirements and UX wireframes into functional, maintainable code.

Optimize applications for speed, performance, accessibility, and scalability.

Collaborate with backend developers to integrate RESTful APIs and other services.

Ensure code quality through automated testing, code reviews, and continuous integration practices.

Lead architectural discussions and front-end technology strategy decisions.

Stay current with industry trends and emerging frontend technologies.

Mentor and support junior developers, fostering knowledge sharing across the team.

Required Qualifications

12+ years of professional experience in frontend development

Expert-level proficiency inHTML5, CSS3, JavaScript (ES6+)

Strong experience with one or more modern JS frameworks:React, Angular, or Vue.js

Experience withstate management libraries(e.g., Redux, MobX, Vuex)

Proficiency in using build tools and package managers (Webpack, Vite, NPM/Yarn)

Familiarity withRESTful APIs, GraphQL, and integrating backend services

Understanding ofresponsive design, cross-browser compatibility, and accessibility (WCAG)

Experience with version control tools likeGit

Preferred Qualifications

Experience withTypeScript

Familiarity withNext.js,Nuxt.js, orserver-side rendering (SSR)

Experience with design systems and component libraries (e.g., Material UI, Tailwind, Bootstrap)

Exposure to testing frameworks (e.g.,Jest, Cypress, Playwright)

Understanding of CI/CD pipelines and deployment workflows

Prior experience in Agile/Scrum development environments