Top Senior Front End Developer Jobs in Seattle, WA

As a Senior Front End Engineer on the Experimentation Platform Team at Reddit, you will design, develop, and scale experimentation tools, enhancing user experience and enabling impactful A/B testing across the platform. Responsibilities include full development cycle engagement and cross-functional collaboration to drive innovation.

The Senior Frontend Engineer will develop and maintain a design system, implement UI features, optimize performance, and ensure accessibility in a collaborative environment.

Responsible for designing, developing, and maintaining backend and web applications using Java and React, collaborating with teams to deliver scalable solutions.

The Senior React Frontend Engineer will lead frontend development, focusing on real-money gamification projects, coordinating with teams, and ensuring quality through code reviews and testing.

The Staff Software Engineer will architect and maintain the front-end design system, mentor engineers, and tackle performance challenges while driving technical excellence.

Responsible for building scalable user experiences with React.js and TypeScript, troubleshooting existing software, and collaborating with design and product teams.

As a Senior Frontend Engineer, you will build applications for order handling, set design patterns, and enhance user experiences.

Join TRM Labs as a Senior Frontend Engineer to develop large-scale web applications that analyze blockchain transactions, collaborating closely with design and backend teams.

The Frontend Software Engineer III designs, develops, and supports software applications, mentors junior engineers, and collaborates in Agile environments.

Develop and implement UI/UX for a cloud-native data platform, writing production-level code in Typescript, primarily using React, and engage in API development.

The role involves leading frontend development to create user-friendly applications, mentoring team members, collaborating with various stakeholders, and architecting solutions. You will ensure technical vision aligns with product strategy.

As a Senior Frontend Engineer, you will design, develop, and deploy web applications, collaborating with team members, writing scalable code, and maintaining tests.

Lead technical direction and contribute to the frontend codebase, building user-facing tools and mentoring team engineers to enhance user experiences.

Responsible for defining, designing, and developing new features for scalable distributed solutions, collaborating with teams, and improving application performance.

The Senior Fullstack Engineer will develop and enhance the CareerMD platform, collaborating with designers and product managers, writing high-quality code, and mentoring junior developers.

Design and build modern front-end systems, SDKs, and components. Collaborate with teams to connect AI capabilities and enhance user workflows. Mentor engineers and influence technical direction.

The Senior Frontend Engineer will design and implement high-performance user interfaces, mentor developers, optimize application performance, and ensure accessibility and efficiency in frontend development.

The Senior Frontend Engineer will develop features for the Read AI platform, enhance user experience, collaborate with teams, and improve frontend development practices.

Develop and maintain high-impact web applications using React and Next.js, integrating with APIs and ensuring performance and accessibility. Collaborate with cross-functional teams and advocate for user-centered design.

As a Senior Frontend Engineer, you will enhance user experiences by building cross-platform solutions, collaborating with product teams, and improving infrastructure and tooling.

Kinetic seeks a senior frontend engineer to lead the development of a multi-chain DEX aggregator and trading dashboard using modern technologies.

As a Frontend Staff Software Engineer, you will drive the design and development of UI components, lead front-end architecture, optimize performance, and mentor other engineers across the Cars Commerce platform.

As a Senior Software Engineer, you will lead projects, develop critical consumer flows, mentor other engineers, and improve user experiences in a collaborative environment.

As a Staff Frontend Engineer, you will develop user interfaces, establish engineering best practices, mentor junior engineers, and collaborate on APIs for cybersecurity products.

The Staff Frontend Engineer will lead frontend development, design user interfaces, mentor junior engineers, and collaborate on backend systems in cybersecurity.