Top Web Developer Jobs in NYC, NY

Investigate and improve web client performance across page loading, rendering, interaction responsiveness, asset delivery, and caching. Build performance tests, dashboards, and regression guardrails; analyze browser data; ship scoped improvements; collaborate with infrastructure and product engineers; and document performance findings and recommendations.

Leads architecture and technical direction for a high-traffic Next.js and React web platform. Responsibilities include improving Core Web Vitals, technical SEO, rendering, caching, APIs, CMS capabilities, experimentation, analytics, testing, deployment, production reliability, and developer mentorship. The role also architects AI-powered web features, establishes responsible AI standards, and partners with product, marketing, SEO, and engineering teams.

Develop and maintain web-based ArcGIS Solutions capabilities for configuration, deployment, and management. Collaborate with product and development teams, translate user needs into intuitive workflows, integrate and evaluate AI-assisted experiences, prototype emerging technologies, and ensure application quality through manual and automated testing. The role also involves assessing release readiness, troubleshooting, documenting solutions, and supporting accessible and localized web applications.

Build and maintain Komodo Health’s WordPress marketing site, including custom themes, blocks, templates, plugins, landing pages, performance, accessibility, security, SEO, tracking, and consent. Develop Python or JavaScript agentic workflows using LLM APIs, connect them to marketing and revenue systems, and establish production standards for testing, monitoring, documentation, secrets, and human review. Collaborate with marketing teams to scope technical work and manage the website engineering backlog.

Build and maintain Cohere’s public website using Next.js, TypeScript, and Tailwind. Develop polished, growth-focused pages, marketing features, CMS schemas, and content workflows with Sanity. Collaborate with engineers, designers, marketing, and content editors while improving site performance and reliability. Use AI coding tools responsibly and deliver production-quality code.

Develop and maintain full-stack Drupal websites and web applications using PHP, Twig, JavaScript, CSS/SCSS, and MySQL. Build custom modules and themes, integrate APIs, manage multilingual content, troubleshoot issues, optimize performance, SEO, accessibility, and privacy, and convert wireframes into functional pages. Collaborate with marketing, engineering, product managers, project managers, and creatives while conducting peer reviews and leveraging AI-assisted development tools.

Own and ship complex frontend features across Polymarket’s core web surfaces. Collaborate across frontend, backend, QA, product, design, and infrastructure teams; improve reliability, observability, performance, and frontend architecture; respond to production incidents; and connect engineering work to product outcomes. The role requires strong React, Next.js, and TypeScript expertise, crypto or Web3 experience, independent execution, and high-quality technical decision-making.

Build and maintain React-based public websites, owning features from conception through production. Develop reusable component libraries, styling, animations, content platform functionality, server-side rendering, site generation, and mobile-to-web migrations. Collaborate with product, design, and growth teams in a small cross-functional team to deliver high-quality web experiences.

Leads complex web development projects using Java technologies and SQL, from requirements through testing and production. Designs back-end integrations, implements and monitors code, documents development changes, tracks work in Jira, and coordinates with internal departments. Requires expertise in Java, J2EE, object-oriented design, SQL, JSP, JSTL, UNIX, scripting, and web technologies. May supervise team members and support production deployments.

Build and scale full-stack web systems, backend services, and user-facing applications for Robinhood’s Advisor Products team. Design scalable architectures, translate ambiguous requirements into technical plans, collaborate with cross-functional stakeholders, and provide technical leadership through coaching, code reviews, and development best practices. The role focuses on integrating Trade PMR’s advisor platform with Robinhood’s products.

The Web Platforms Engineer will lead CMS evaluation, modernization, migration, and platform architecture for enterprise patient and healthcare professional websites. Responsibilities include prototyping CMS capabilities, developing reusable platform tooling, defining integrations and infrastructure requirements, enabling AI-assisted content delivery, and ensuring security, privacy, accessibility, performance, SEO, and regulatory compliance. The role serves as a technical expert and liaison across web, infrastructure, engineering, product, and vendor teams.

Design and build conversion-focused landing pages, campaign sites, and brand experiences from concept through production front-end code. Maintain corporate and marketing websites, implement technical SEO, collaborate with design, marketing, product, engineering, and DevOps teams, and perform design QA and cross-browser testing. Manage multiple initiatives, communicate decisions, and ensure accessible, high-performance web experiences.

Senior or Staff Frontend Engineer responsible for developing scalable, high-performance web applications, shaping frontend architecture, mentoring engineers, and leading cross-functional feature delivery. The role requires modern JavaScript and TypeScript expertise, strong UI system design, API integration, debugging, and technical documentation skills. The engineer will also promote AI-assisted and agentic development practices, collaborate with product and backend teams, and build intuitive healthcare payment interfaces.

Lead front-end development and REST API integration for a federal environmental platform. Build accessible React or Angular interfaces, geographic query tools, consultation package features, and species-data integrations. Ensure Section 508 and WCAG 2.0 compliance, produce VPAT accessibility reports, support demonstrations, and implement production feedback. The role is fully remote and requires U.S. citizenship with eligibility for Public Trust clearance.

Develop and maintain platform UI features while leading accessible web-based training content, e-learning modules, videos, job aids, help resources, and adoption metrics dashboards. Support Section 508/WCAG compliance, user testing and training plans, post-deployment monitoring, and resolution of interface issues for a federal data integration platform.

Designs and maintains enterprise disaster recovery architectures across cloud, application, network, and database environments. Leads DR readiness, site validation, replication, failover and failback planning, testing, runbook development, RTO/RPO validation, risk assessments, and executive reporting. Collaborates with cloud, cybersecurity, engineering, and database teams to ensure resilient architectures comply with federal and DoD requirements, including RMF controls and IL5 security standards.

Develop and maintain user-facing web applications, backend services, APIs, microservices, identity systems, and third-party integrations. Build reusable, scalable code; optimize application performance; document solutions; collaborate with product, engineering, and business stakeholders; and deliver tested features through a ticketed workflow. The role also mentors junior developers, contributes to architectural decisions, and supports CI/CD, cloud hosting, observability, and automated testing initiatives.

Build responsive, accessible mobile web experiences for AI agents, including task creation, activity tracking, feedback, streaming updates, long-running workflows, and connectivity changes. Partner with design, product, research, backend, and full-stack teams to develop interaction patterns, APIs, synchronization, and frontend architecture. Own features from exploration through launch and refinement while improving performance, usability, and reliability.

Lead development and maintenance of responsive websites and marketing campaign assets using Node.js and React. Manage backlogs, REST API integrations, Git repositories, Docker deployments, platform performance, security (OAuth2), user access, and stakeholder communication. Mentor developers and deliver cross-functional web improvements.

Senior .NET Web App Developer responsible for designing and building .NET web applications, implementing Oracle PL/SQL solutions, using Entity Framework and Blazor, applying design principles, producing technical documentation, performing performance tuning, and collaborating in Scrum/Agile teams with Bitbucket, JIRA, Tempo, and Confluence.

Develops and tests scalable Java web applications and reusable components throughout the agile lifecycle. Responsibilities include SOAP and REST web services, unit and acceptance testing, code reviews, troubleshooting, load testing, performance tuning, continuous improvement, and sprint communication. The role requires collaboration across development and testing teams, cloud application experience, AWS, CI/CD, J2EE frameworks, and eligibility for a Public Trust clearance.

Own and maintain the WordPress platform end-to-end: hosting, security, performance, technical SEO, tracking (GA4/GTM), integrations (HubSpot/APIs), backups, and documentation. Establish environments, deployment workflows, monitoring, and runbooks while partnering with front-end and marketing teams to ensure reliable, high-performing, and compliant site operations.

Seeking a web developer to build and maintain websites or web applications. The posting provides no additional details about responsibilities, qualifications, technologies, compensation, or work arrangements.

Develops, implements, maintains, tests, and troubleshoots software applications supporting company systems. Collaborates with business analysts and lead developers to analyze requirements, design solutions, document functionality, conduct code reviews, support QA and deployments, manage version-controlled code, and resolve production defects. The role participates in software development projects, communicates progress, and provides on-call night support.

Work on front-end and back-end web projects: create and redesign websites, build sitemaps and wireframes, collaborate with teams, and focus on UI/UX and performant back-end functionality.