Top Senior Front-End Engineer Jobs in NYC, NY

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.

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.

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

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.

Build and scale high-performance, data-driven React web applications and visualization-heavy, map-based interfaces. Integrate with REST/GraphQL APIs, optimize rendering for real-time large datasets, contribute to frontend architecture, reusable UI systems, testing, and cross-functional collaboration to support mission-critical workflows.

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.

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 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.

Lead architecture and implementation of Aragorn AI's frontend: build scalable React/TypeScript applications, evolve micro-frontend architecture, develop and maintain a reusable design system, optimize performance, collaborate with design and backend teams, own CI/CD for frontend, and drive frontend technical standards and documentation.

The role involves building shared frontend foundations, defining architecture and standards, improving developer experience, and mentoring junior engineers while ensuring high-quality and scalable web applications.

The role involves developing large-scale applications using HTML, CSS, JavaScript, and React/WordPress, code reviews, and crafting UI components while ensuring high quality and accessibility.

The role involves building creative tools for content editing, enhancing features with PixiJS and WebGL, and improving collaboration workflows.

Lead development of a Shopify Headless storefront using React and TypeScript. Build pixel-perfect, accessible, performance-optimized eCommerce pages, implement Shopify Functions, integrate GraphQL APIs and third-party services, evolve a Storybook design system, and collaborate with designers, product, QA, and backend engineers to maintain best practices and documentation.

Build and scale Medal's Electron-based React frontend to support 100M+ users. Ship high-quality, performant features, own end-to-end implementation, profile production performance, run A/B tests and measure feature metrics, iterate quickly with product leadership and the community, and collaborate in-person with the NYC product team.

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.

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 ship production frontend and internal systems powering Picnic's delivery and logistics platform. Work on real-time workflows (order batching, routing), improve reliability and observability, own projects end-to-end, collaborate with Product, Design, and Operations, and participate in code reviews to maintain engineering quality.

Lead the development of a design system, architect web components, manage dependencies, and collaborate with teams to enhance user experiences.

Lead design-focused frontend development for polished mobile apps. Ship end-to-end features, build performant gesture-driven animations, collaborate with designers for pixel-perfect UI, maintain a mature codebase, and establish automated testing and quality practices.

As a Frontend Engineer, you'll build and enhance the trading experience, develop user-facing features, and engage with customers to shape product decisions.

Own end-to-end frontend development for core crypto payment flows across web and mobile. Improve latency, availability, and SLOs; build user-facing features (contacts, real-time transaction status); identify and fix performance bottlenecks; partner with product/design/backend; mentor junior engineers to reduce customer friction at scale.

The Frontend Engineer will design and build a web application framework using React and Next.js, ensure code quality, and lead development efforts. Responsibilities include technical leadership, collaboration with stakeholders, and mentoring new developers.

The Senior Frontend Engineer will lead development of UI features using React and TypeScript, collaborate on API designs, and optimize performance in a data-intensive financial platform environment.