Top Senior Front End Developer Jobs in NYC, NY

As a Front End Engineer (React Native) at Bilt, you will develop user-facing features, write efficient code, and collaborate with teams to enhance the mobile app experience.

Lead frontend architecture and strategy across web and mobile, build high-performance React and React Native applications, develop shared component libraries and design systems, optimize performance and accessibility, mentor engineers, collaborate with product/design/backend teams, and resolve complex cross-stack issues.

As a Senior Frontend Engineer at Fora, you'll build and enhance the Advisor Experience, collaborating with Product and Design to develop web applications that support travel advisors in managing client interactions and bookings.

The Staff Frontend Engineer will design the UI for a high-performance datacenter infrastructure platform, optimizing for speed and handling complex datasets. Responsibilities include building applications, collaborating on API design, and establishing frontend architecture.

Own and evolve the design system and horizontal web foundation: shared components, tokens, theming, tooling, and architecture. Improve web performance and accessibility, build developer experience and AI-assisted frontend tooling, partner with product teams to integrate platform capabilities, and create documentation and governance to drive cross-team adoption.

Own end-to-end customer-facing marketplace frontend features—from ideation to launch—working closely with product and design. Prototype and build high-fidelity React/Next.js interfaces, improve discovery, matching, scheduling and booking flows, run A/B tests, elevate visual polish and accessibility, and contribute to the design system and frontend platform to increase product quality and speed.

As a Senior Front End Software Engineer, you will develop user interfaces and APIs for data-intensive applications, ensuring usability and performance while mentoring other engineers.

As a Front-End Software Engineer, you will build AI-powered interfaces, tackle complex design problems, and collaborate across teams to enhance user experiences. Responsibilities include mentoring, implementing responsive UI, and engaging with AI technologies.

Lead frontend architecture and implementation for Squarespace Domains Growth. Build scalable, high-performance UI, reusable components, and SSR/SSG solutions; mentor engineers; collaborate with product, design, and backend teams to drive conversion, acquisition, and revenue growth while championing accessibility, performance, security, and testing best practices.

Lead the development of scalable frontend components, define technical direction, and optimize processes for engineering teams while embracing AI tools.

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.

Design and implement frontend features for patient and provider web experiences at scale. Build realtime, accessible, high-performance interfaces, own application reliability and monitoring, contribute to architecture and technical roadmap, drive testing and observability best practices, collaborate cross-functionally, and participate in on-call rotations.

Lead frontend architecture and implementation for patient and provider web experiences at scale. Build accessible, performant realtime UIs, own end-to-end delivery, improve observability and reliability, contribute to technical roadmap, collaborate with PMs and designers, participate in on-call rotations, and drive engineering best practices.

Build and iterate on Kalshi's web trading experience: implement new frontend features, write and maintain frontend code, collaborate with designers, weigh customer feedback, and partner with business and marketing to increase engagement.

As a Senior/Staff Frontend Engineer, you'll build and scale real-time logistics platforms, design high-performance React applications, and mentor other engineers.

The role involves developing front-end solutions for trading tools within the Fixed Income Trading Services, collaborating with stakeholders, and ensuring high performance and usability in trading applications.

Design and develop scalable, secure, and accessible front-end components for Adobe Experience Manager. Translate regulatory and business requirements into responsive, WCAG-compliant experiences using HTL, JavaScript (ES6+), CSS/SASS, and Angular. Customize and extend AEM Core Components for multi-site, multilingual delivery. Collaborate with designers, back-end engineers, compliance, and product owners. Lead standards, conduct code reviews, mentor junior developers, and ensure financial industry security and accessibility compliance.

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.

As a Senior Software Engineer in the Frontend Infrastructure & Experience team, you will design and build foundational systems, lead projects, improve developer experience, and mentor engineers across Braze.

Lead front-end engineering and provide senior technical consulting across frontend and backend systems. Design, develop, test, and deploy RESTful services and reusable UI components, enforce coding standards, build CI/CD pipelines (GitLab), provision Kafka objects, participate in code reviews, and advise IT leadership on architecture, security, and emerging technologies to meet business requirements.

The role involves consulting, developing frontend and backend applications, ensuring coding standards, and collaborating on new technologies.

Lead frontend architecture and delivery using React, Next.js, and TypeScript. Drive reusable component libraries, integrate REST/GraphQL, optimize performance and accessibility, mentor engineers, lead reviews, and collaborate across design, backend, and DevOps to ship scalable, maintainable web experiences.

As a Senior II Frontend Engineer, lead design and implementation of frontend systems, mentor engineers, write high-quality code, ensure performance, and collaborate with cross-functional teams.

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.

Build and maintain web platforms for restaurant discovery, onboarding, and data quality. Collaborate with engineers, PMs, designers, and researchers; work full-stack when needed; ship impactful features; run experiments with guests and restaurants; champion development, deployment, and quality best practices.