Top Senior Front End Developer Jobs in NYC, NY

Lead frontend engineering for the DataLab product, developing scalable React and TypeScript interfaces for enterprise financial applications. Guide frontend architecture, component design, accessibility, performance, developer experience, and testing practices. Collaborate with product managers and backend engineers, mentor teammates, make technical decisions, and promote AI-assisted coding tools while maintaining high standards for security, quality, and maintainability.

Leads frontend software development across strategic product domains, designing and building dashboards, notifications, reporting interfaces, and intelligent automation. Independently drives complex technical projects, integrates AI models and data pipelines, improves performance, writes automated tests, conducts code reviews, documents architectures, owns applications throughout their lifecycle, and mentors engineers. Collaborates with cross-functional stakeholders to deliver scalable tools for real estate agents.

Lead frontend architecture and development for a consumer-facing fintech web product. Build responsive transaction and account screens, manage client-side state and live data updates, shape APIs and transaction flows, and partner with founders on product and engineering priorities. The role suits an early engineer who can launch polished web experiences, prioritize performance and stability, and work effectively in a lean, fast-moving environment.

Build and own Kotlin/Android interfaces connecting customers with robotics capabilities, while developing React/Next.js web applications for partners and support staff. Integrate frontend systems with Go microservices, manage API lifecycles and client state, establish architecture and testing standards, and contribute to CI/CD and platform decisions. The role is hybrid in New York City and requires close collaboration with UX, robotics, backend, and product teams.

Build and lead customer-facing eCommerce booking features using React, Next.js, and TypeScript. Own checkout, payments, scheduling, and partner booking flows; improve conversion, accessibility, performance, observability, and reliability. Integrate commerce and third-party services, develop automated tests, support frontend architecture, instrument experiments and analytics, and monitor production outcomes. Collaborate across Product, Design, Marketing, and Backend teams while mentoring junior engineers and contributing to shared components and API contracts.

Build responsive Web3 applications, web SDKs, developer tools, reusable frontend components, and internal Customer Success tools. Collaborate with Product, Design, and Engineering to create scalable, accessible user experiences. Contribute to code and design reviews, automated testing, continuous delivery, coding standards, and AI-assisted development practices.

Own frontend architecture for mission-critical React and TypeScript applications that visualize complex cyber operation data in real time. Lead UI technical direction, build interactive visualization systems, establish reusable component patterns, improve performance and reliability, and mentor engineers. Collaborate with product, design, backend, and operations teams to deliver secure, scalable capabilities for cloud and on-premises environments.

Senior frontend-focused software engineer responsible for authentication, verification, and fraud experiences across web, mobile, and backend systems. The role owns team goals, designs and delivers highly available systems, collaborates with product and design partners, improves engineering standards, supports operations and on-call efforts, and mentors engineers. Candidates should have strong web application architecture experience, proficiency with React or Vue and JavaScript or TypeScript, and excellent communication skills.

Build and scale high-quality frontend features for a large gaming platform serving more than 100 million users. Develop primarily with React in an Electron application, collaborate with leadership and the gaming community, and ship features rapidly. Own complex features end to end, optimize production performance, use profiling tools, and measure outcomes through A/B testing and usage metrics. The role is based in New York City with five days per week in the office.

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 React and TypeScript frontend features for data-intensive financial applications. Develop reusable accessible components, integrate GraphQL APIs and real-time subscriptions, write automated tests, investigate production issues, participate in code reviews and design discussions, and contribute to documentation and continuous improvement within an Agile team.

Build high-performance React and TypeScript interfaces for real-time cyber operation data. Responsibilities include frontend architecture, interactive visualizations, automated testing, performance optimization, reliability improvements, code reviews, and cross-functional collaboration. The role owns significant features end to end and supports other engineers while delivering secure, accessible software for cloud and on-premises environments.

Lead end-to-end development of modern frontend initiatives using React and Electron. Design scalable architecture, improve performance and test coverage, resolve production issues, influence technical decisions, and collaborate with Product, Design, and Backend teams. The role includes mentoring engineers, maintaining code quality, supporting observability and incident response, and building secure, high-quality customer-facing payment and form workflows.

Lead front-end architecture and cross-team technical initiatives for the NodeZero platform. Build scalable React and TypeScript systems, reusable components, developer tooling, and shared frameworks while improving performance, reliability, accessibility, observability, and CI/CD workflows. Mentor engineers, establish engineering standards, guide technical strategy, reduce technical debt, and collaborate with Product, Design, Platform, Security, and engineering teams.

Build, deploy, and own scalable consumer applications and services for a digital lending platform, with a focus on React frontend development. Responsibilities include designing features, automated testing, full software development lifecycle participation, collaboration with cross-functional teams, system scalability and reliability, technical debt reduction, mentoring frontend engineers, and using AI-driven coding agents and agentic workflows.

Own and evolve shared frontend infrastructure across web and mobile, including design systems, UI libraries, data layers, notifications, backend-for-frontend services, release automation, CI/CD, QA tooling, and performance improvements. Build AI-powered developer tools, lead large-scale migrations, contribute to product engineering, deliver high-quality tested code, document architecture, review code, and mentor engineers across teams.

Build scalable React and TypeScript web applications for a fintech platform. Develop reusable component libraries and design systems, translate complex financial workflows into intuitive interfaces, integrate with APIs and microservices, improve performance and testing, and guide frontend architecture. Collaborate closely with Product and Design while working with complex financial data and partially defined requirements.

Build and improve Harmonic’s frontend platform for reliability, performance, scalability, and developer productivity. Responsibilities include resolving production issues, optimizing large-data rendering and bundles, implementing monitoring and observability, establishing testing strategies, creating reusable abstractions, driving technical migrations, making architecture decisions, and mentoring engineers.

Build and enhance Ramp’s marketing website, brand design system, and reusable component library. Partner with designers, engineers, paid advertising, and growth teams to create interactive experiences, conduct landing-page A/B tests, and drive lead generation. The role requires strong frontend and design engineering skills, responsive design expertise, and close attention to implementation details.

Serves as a technical lead for Military OneSource and related websites, developing WordPress-based front-end experiences with HTML, CSS, and JavaScript. Responsibilities include accessibility compliance, UX implementation, API integration, troubleshooting, Agile collaboration, modernization initiatives, documentation, and developer mentorship. The role is fully remote and requires an active Secret clearance.

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 performant, accessible front-end interfaces for AI agents, dashboards, conversational user interfaces, and visualization tools. Collaborate with designers, AI engineers, and backend developers to create scalable components, optimize cross-browser experiences, and iterate on UX using testing, feedback, and usage data.

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.

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.

Build and maintain frontend products and tools across the Brex stack. Collaborate with engineers and customer-facing teams, design experiments, own user experience and technical outcomes end to end, and improve scalability, operability, and performance. The role involves architecting, developing, and testing client-side applications while contributing to cross-functional projects and long-term technical vision.