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Senior Frontend Engineer United States Jobs (On-site work)

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Senior Frontend Engineer - Access Control
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Join our dynamic startup team in San Mateo as a Senior Frontend Engineer. You will own and develop our innovative, cloud-based Access Control product line. We seek a product-minded engineer with 7+ years of experience passionate about building best-in-class user experiences. Enjoy comprehensive h...
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United States , San Mateo
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150000.00 - 280000.00 USD / Year
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Verkada
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Staff / Senior Frontend Engineer
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Join Duranta's mission to create a more beautiful world through geospatial data. As a Staff/Senior Frontend Engineer, you'll build delightful React and React Native web/mobile apps in Seattle or NYC. We seek 7+ years of frontend experience, including React Native, for a high-autonomy role with eq...
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United States , Seattle; New York
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160000.00 - 200000.00 USD / Year
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Duranta
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Senior Frontend Engineer
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Join Inworld as a Senior Frontend Engineer in Mountain View. Evolve our AI platform's developer-centric web experience using React, TypeScript, and modern tools. Build key features like a TTS playground and observability suite. Enjoy equity and benefits in a collaborative, innovative environment.
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United States , Mountain View
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200000.00 - 250000.00 USD / Year
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Inworld AI
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Senior Software Engineer - Frontend
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Join Sigma's talented team in NYC as a Senior Frontend Engineer. Build elegant, high-performance user experiences using React, TypeScript, and GraphQL. Own product features from design to launch, with a focus on data visualization. Enjoy equity, generous benefits, and a dog-friendly office.
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United States , New York City
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Salary
170000.00 - 215000.00 USD / Year
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Sigma Computing
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Senior Software Engineer - Frontend
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Join Sigma's talented team in NYC as a Senior Frontend Engineer. You will own substantial product pieces, crafting elegant UIs with React, TypeScript, and GraphQL. We seek a collaborative engineer with 5+ years of experience and a passion for great design. Enjoy equity, generous health benefits, ...
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United States , New York City
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170000.00 - 215000.00 USD / Year
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Sigma Computing
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Senior Frontend Engineer - Access Control
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Join a dynamic "startup within a startup" team in San Mateo, building a cloud-managed Access Control product. As a Senior Frontend Engineer, you'll drive product development from concept to completion. Enjoy significant ownership, autonomy, and comprehensive healthcare benefits with premium cover...
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United States , San Mateo
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Salary
150000.00 - 300000.00 USD / Year
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Verkada
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Senior Frontend Engineer - Streaming
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Join Verkada's Streaming team in San Mateo as a Senior Frontend Engineer. You will build core features for our cloud security platform, focusing on video playback and dashboard experiences using React/TypeScript. This onsite role requires 4+ years of experience and offers excellent health benefit...
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United States , San Mateo
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130000.00 - 280000.00 USD / Year
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Verkada
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Senior Frontend Engineer
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Join Verkada's dynamic "startup within a startup" as a Senior Frontend Engineer in San Mateo. Drive the innovative intercom product line using deep React expertise. Enjoy top-tier benefits, including fully covered healthcare and a collaborative team environment.
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United States , San Mateo
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Salary
150000.00 - 300000.00 USD / Year
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Verkada
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Senior Frontend Engineer
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Join a fast-growing health tech startup in San Francisco as a Senior Frontend Engineer. Leverage your 3+ years of expertise in React and React Native to build best-in-class web and mobile applications. You will lead technical initiatives, own architectural decisions, and mentor engineers. This ro...
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United States , San Francisco
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Salary
200000.00 - 300000.00 USD / Year
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80Twenty
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Senior Frontend Engineer
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Join a venture-backed startup as a Senior Frontend Engineer in Bellevue. You'll own the frontend end-to-end, requiring strong TypeScript, React, and UX skills. Receive significant equity and shape the product direction in a high-impact, early-stage role.
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United States , Bellevue
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Salary
160000.00 - 200000.00 USD / Year
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Strategic Employment Partners
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Explore the world of Senior Frontend Engineer jobs, where technical expertise meets creative vision to build the digital interfaces that millions interact with daily. A Senior Frontend Engineer is a pivotal role in modern software development, focused on architecting and implementing the client-side logic, visual elements, and user experience of web applications. These professionals are the bridge between design concepts and functional, high-performance digital products, ensuring that applications are not only visually compelling but also robust, accessible, and intuitive. In this senior capacity, individuals typically take on a leadership role within development teams. Common responsibilities include translating complex business and design requirements into technical specifications, architecting scalable frontend solutions, and writing clean, maintainable, and efficient code. They are deeply involved in the entire development lifecycle, from planning and prototyping to deployment and iterative optimization. A key aspect of the role is mentoring junior developers, conducting code reviews, and establishing frontend development best practices and standards to elevate the entire team's output. Collaboration is central; Senior Frontend Engineers work closely with UX/UI designers, product managers, and backend engineers to ensure a seamless integration of services and a cohesive final product. The technical skill set for these jobs is extensive and evolves with the ecosystem. Core proficiency invariably includes deep knowledge of modern JavaScript (ES6+), TypeScript, and at least one major framework such as React, Angular, or Vue.js. Mastery of HTML5, CSS3, and preprocessors like SASS is fundamental, alongside a strong grasp of responsive design principles, cross-browser compatibility, and web accessibility standards (WCAG). Senior engineers are expected to optimize application performance, leveraging tools for bundling, code splitting, and lazy loading. Familiarity with state management libraries, testing frameworks (Jest, Cypress), version control (Git), and modern frontend build tools is standard. Increasingly, knowledge of server-side rendering (Next.js, Nuxt), static site generation, and headless CMS architectures is highly valued. Beyond technical acumen, successful candidates for Senior Frontend Engineer jobs possess a product-oriented mindset, focusing on user outcomes and business goals. They excel at problem-solving, making informed architectural trade-offs, and communicating complex technical concepts to non-technical stakeholders. Experience with agile methodologies, a commitment to continuous learning, and the ability to lead technical initiatives are hallmark traits of this advanced profession. For those passionate about shaping the digital landscape through elegant code and user-centric design, pursuing Senior Frontend Engineer jobs offers a challenging and rewarding career path at the forefront of technology.

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