Top Senior Front-End Engineer Jobs in NYC, NY

Build and ship features for Cohere’s North AI workspace platform, develop autonomous agents that interact with sensitive enterprise data, and deploy highly performant, secure applications in low-resource environments. Collaborate with researchers to productionize advanced AI models and techniques while contributing across the full stack using Python and React.

Build and scale frontend architecture, responsive data-rich experiences, shared components, design-system standards, accessibility practices, Storybook documentation, automated quality guardrails, and frontend tooling. Contribute to backend APIs and platform improvements while collaborating with product and design teams. Mentor engineers and improve frontend quality, consistency, maintainability, and scalability across the organization.

Build and own responsive, high-performance React + TypeScript web applications. Design frontend architecture, reusable components, state management, and data-fetching. Collaborate with product and backend teams, optimize performance and accessibility, and improve developer tooling and workflows. Contribute across the stack when needed.

The Senior Front-End Engineer will develop enterprise-grade web applications using React, collaborate with UX designers and project managers, and enhance existing applications' performance.

Develop and enhance web applications using Vue.js, collaborating with various team members, and providing efficiency improvements and support for existing applications.

As a Senior Front-End Software Engineer, you'll design and implement services, contributing to the architecture and product strategy in a fast-paced environment.

The role involves building high-quality web apps, focusing on AI-powered workflows, human-in-the-loop systems, and customer needs with attention to detail.

As a Senior Front End Engineer, you will lead feature development, write code, and influence product architecture for AI-powered EMR software.

The Senior Frontend Engineer will develop cross-platform applications, focusing on user-friendly healthcare interfaces, ensuring performance, accessibility, and HIPAA compliance while collaborating directly with the CEO.

Design and build responsive, accessible, high-performance web interfaces. Collaborate with designers and back-end developers, write clean code, test/debug for cross-browser compatibility, and meet project deadlines.

The Senior Frontend Engineer will develop and enhance the Navigator platform using Vue.js, improve user experience, maintain CI/CD workflows, and collaborate with cross-functional teams.

Lead full‑stack engineering projects to scale document ingestion, design multi‑jurisdiction data collection, and build government‑grade security. Deliver AI‑native features across web, desktop, mobile, editors, and APIs. Ship full‑stack solutions using React/TypeScript frontend and Python/Postgres backend while ensuring scalable, extensible architectures that delight enterprise customers.

Own and architect the frontend foundation for Handshake AI Enterprise: establish component system, design tokens, engineering patterns, shared libraries, and ship production-grade UIs while collaborating with AI and platform teams to ensure scalable, maintainable, high-performance enterprise deployments.

Join Tabs’ Frontend Platform team to build a scalable design system and component library. Lead full-lifecycle software development, design reliable systems, improve internal and external user experiences, contribute feature ideas, and help shape the engineering organization in an early-stage startup.

Lead frontend development for a complex React app: collaborate with Product and Design, drive architecture decisions, prioritize performance and accessibility, deliver pixel-perfect UI, use AI tools for prototyping, and own projects from conception through launch in a fast-paced startup.

Design and implement accessible interactions in the Canva Editor: focus management, keyboard navigation, live regions, and ARIA roles. Use screen readers daily to test and debug, collaborate across teams to review designs and PRs, identify systemic accessibility gaps, and build architectural solutions to improve accessibility across complex frontend systems.

As a Senior Frontend Engineer, you will design and build user interfaces for Farsight AI's products, focusing on creating seamless experiences in financial services. You'll work on both long-term projects and rapid iterations based on customer feedback, ensuring high-quality code and design standards.

Build elegant, responsive front-end user experiences using modern frameworks. Own significant product features from design to launch, collaborate with product, UX, and backend teams, create interactive visualizations for structured and unstructured data, and optimize performance and interactivity for large-scale data applications.

Build and maintain user-facing web interfaces by translating designs into HTML, CSS, and JavaScript. Implement interactive features, ensure responsive and cross-browser compatibility, optimize performance, test and debug code, collaborate with back-end developers for integration, and maintain existing applications while following accessibility and front-end best practices.

Design, build, and optimize responsive, high-performance front-end interfaces for a Web3 DEX using modern JavaScript frameworks and TypeScript. Collaborate with designers, product, and back-end teams to integrate blockchain APIs and smart contracts, mentor junior developers, troubleshoot issues, and contribute to mobile-first/PWA development while ensuring scalability and maintainability.

Design, build, and maintain user-facing web interfaces. Translate mockups into HTML/CSS/JavaScript, implement interactive elements with front-end frameworks, ensure responsive and accessible cross-browser experiences, optimize performance, test and debug code, and collaborate with back-end engineers.

Own and ship major parts of a core web application for power users. Build high-performance, stateful interfaces for search, transactions, and workflows. Collaborate with backend, product, and design to define and deliver end-to-end features with full ownership.

Build and refine front-end experiences for web and mobile: onboarding, checkout, gallery features, design system and enterprise dashboard. Collaborate closely with designers and PMs, ship fast, maintain aesthetic quality, and iterate with user feedback using React, Next.js and TypeScript.

Build and maintain fast, intuitive frontend applications for blockchain and Web3 products. Collaborate with product, design, and engineering teams; develop reusable components and frontend architecture; integrate wallets and smart-contract interactions; improve performance, reliability, and accessibility; participate in technical planning and code reviews; mentor other developers and establish frontend best practices.

Build and maintain TypeScript/React frontends and SDKs for the Nomina web3 platform, create user-facing dapps, improve developer documentation and DX, and collaborate with product and engineering to deliver high-quality, mobile-friendly features.