Top Senior Javascript Jobs in NYC, NY

9 Days AgoSaved
In-Office
New York, NY
Senior level
Senior level
On-Demand • Professional Services • Consulting
Join a team building a strategic reference data platform for client, account and instrument data. Deliver horizontally scalable, high-performance JavaScript applications, collaborate with senior business and technical partners, and maintain/extend mission-critical software. Requires strong problem-solving, independence, and ability to learn new technologies quickly.
Top Skills: AngularjsJavaJavaScriptPythonScalaWebpack
Reposted 13 Days AgoSaved
In-Office
New York, NY
Senior level
Senior level
Cloud • Digital Media
As a JavaScript Developer, you will design, implement, and maintain web applications, collaborate with cross-functional teams, innovate solutions, and ensure high performance and availability of systems.
Top Skills: AWSCSS3HTML5JavaScriptNode.jsReactWebpack
Reposted 16 Days AgoSaved
Hybrid
New York, NY
150K-225K Annually
Senior level
150K-225K Annually
Senior level
Artificial Intelligence • Fintech • Machine Learning • Natural Language Processing • Software • Generative AI
As a Senior Full-Stack Software Engineer, you'll build AI-driven web applications in TypeScript, manage technical decisions, collaborate on products, and mentor team members while ensuring high-quality user experiences.
Top Skills: Ai SdkAmazon EksAWSDrizzleGitGitLangfuseLanggraphNext.JsPrometheusReactSentryTailwindTypescript
Reposted 5 Days AgoSaved
Remote
New York, NY
Senior level
Senior level
Digital Media • Information Technology • News + Entertainment • Design
The Senior Full Stack JavaScript Developer will build and maintain user interfaces using React and Next.js, integrate with Node.js backends, and guide other developers. Responsibilities include ensuring accessibility, performance, and reliability of features, engaging in code reviews, and collaborating closely with product teams.
Top Skills: AWSJavaScriptMongoDBNext.JsNode.jsReactRestful ApisServerless
Reposted YesterdaySaved
In-Office
New York, NY
150K-225K Annually
Senior level
150K-225K Annually
Senior level
Fintech • Analytics
As a Senior Full-Stack Software Engineer, you will develop AI-centric web applications, participate in architectural decisions, and mentor team members while managing project priorities and deliverables.
Top Skills: Ai SdkAmazon EksAWSDrizzleGitGitLangfuseLanggraphNext.JsPrometheusReactSentryTailwindTypescript
Reposted 9 Days AgoSaved
In-Office
New York, NY
150K-200K Annually
Senior level
150K-200K Annually
Senior level
Information Technology • Financial Services
The role involves developing scalable web-based UIs and trading tools, collaborating with traders and developers to implement trading and reporting tools.
Top Skills: AngularCSSGitHTMLJavaJavaScriptKdbMySQLNode.jsPostgresPythonReactRestTypescriptWebsockets
Reposted 5 Days AgoSaved
Remote
New York, NY
Senior level
Senior level
Information Technology • Logistics • Transportation • Consulting
Senior full‑stack engineer responsible for building backend services (Node.js/TypeScript) and integrating with frontends (React/Vue). Ship production APIs, collaborate cross‑functionally, own delivery, mentor peers, and develop modular, testable, performant systems across diverse greenfield projects.
Top Skills: JavaScriptNode.jsReactRestTypescriptVue
Reposted One Month AgoSaved
Remote
New York, NY
Senior level
Senior level
Artificial Intelligence • Fintech • Software • Financial Services
The role involves leading the development of a high-performance Web SDK for fraud detection and risk management, implementing algorithms for device fingerprinting, and ensuring security and performance optimization.
Top Skills: BabelGitJavascript (Es6+)Rest ApisRollupTypescriptWebpack
Reposted 2 Days AgoSaved
In-Office
New York, NY
220K-280K Annually
Senior level
220K-280K Annually
Senior level
Information Technology • Internet of Things
Design and build web apps for creating and listening to music. Optimize performance, contribute to design decisions, and create libraries for audio experiences.
Top Skills: CSSNextjsReactTypescript
Reposted 13 Days AgoSaved
Remote
New York, NY
Senior level
Senior level
Information Technology
Seek a Senior React/JavaScript UI Developer for enterprise application support focusing on React, Vue, and secure coding principles within Agile.
Top Skills: CSS3CypressElectronEsbuildHTML5JestNode.jsProgressive Web ApplicationsReactReact QueryReduxTypescriptViteVueWebpackZustand
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Reposted 4 Days AgoSaved
In-Office
New York, NY
5-5 Annually
Senior level
5-5 Annually
Senior level
Artificial Intelligence • Fintech • Natural Language Processing • Software • Analytics
As a Staff Full-Stack Engineer, you will develop major product features, collaborating with users and engineers to ensure software reliability and performance.
Top Skills: AWSDockerNestjsNextjsPythonReactTailwindTypescript
17 Days AgoSaved
In-Office or Remote
New York, NY
Senior level
Senior level
Artificial Intelligence • Edtech • Software • Generative AI
Build end-to-end features in a JS/TS stack, designing scalable backend services and responsive real-time frontends. Improve observability, performance, and reliability, collaborate with product/design, and own full-stack implementation from APIs and data models to UI.
Top Skills: JavaScriptNode.jsReactTypescript
Reposted 3 Days AgoSaved
Remote
New York, NY
150K-220K Annually
Senior level
150K-220K Annually
Senior level
Fintech • Financial Services
As a Senior Software Engineer at Flex, you'll design and maintain financial services architecture, mentor junior engineers, and ensure scalability and security for innovative financial products.
Top Skills: AWSAzureGCPNode.jsTypescript
Reposted 5 Days AgoSaved
Remote
New York, NY
Senior level
Senior level
Software
Build end-to-end features, design intuitive interfaces, manage asynchronous backend jobs, and contribute to open-source efforts, while leading project development from concept to monitoring.
Top Skills: ClickhouseGraphQLRustTemporalTypescript
Reposted 6 Days AgoSaved
Remote
New York, NY
175K-200K Annually
Senior level
175K-200K Annually
Senior level
Software
Design and develop scalable backend systems for SaaS applications, mentor engineers, and lead projects while collaborating with cross-functional teams.
Top Skills: GoGraphQLPostgresRedis
Reposted 24 Days AgoSaved
In-Office or Remote
New York, NY
Senior level
Senior level
Software
The Software Engineer will design scalable software architectures, collaborate on new features, optimize system performance, and mentor junior engineers.
Top Skills: AWSAzureDockerGCPJavaScriptKubernetesReactTypescript
Reposted 24 Days AgoSaved
Hybrid
New York, NY
135K-180K Annually
Senior level
135K-180K Annually
Senior level
Software • Chemical
The Senior Software Engineer will develop end-to-end systems, ensuring quality and scalability while collaborating closely with the executive team and managing complex web applications.
Top Skills: GCPPostgresTerraformTypescript
Reposted 16 Days AgoSaved
Remote
New York, NY
Senior level
Senior level
Artificial Intelligence • Big Data • Internet of Things • Software
The Senior Backend Software Engineer will build intricate backend systems, develop APIs, ensure high availability, and improve application scalability and performance.
Top Skills: DockerElasticsearchKafkaMongoDBNode.jsNoSQLPostgresSQL
Reposted 16 Days AgoSaved
Remote
New York, NY
Senior level
Senior level
Artificial Intelligence • Big Data • Internet of Things • Software
Join the Entefy team as a Senior Full Stack Engineer to build a scalable full stack application enhancing digital interaction for global clients.
Top Skills: JavaScriptKafkaNode.jsReactSQL
Reposted 21 Days AgoSaved
Remote
New York, NY
145K-225K Annually
Senior level
145K-225K Annually
Senior level
AdTech • Marketing Tech
The Senior Full Stack Engineer will design and implement APIs with NodeJS, develop UIs with React, manage data pipelines, and deploy projects on AWS.
Top Skills: AWSJavaScriptNode.jsReactReduxScssSQL
4 Months AgoSaved
Hybrid
New York, NY
180K-230K Annually
Senior level
180K-230K Annually
Senior level
Artificial Intelligence • Fintech • Machine Learning • Productivity • Software • Analytics • Generative AI
Build and maintain the SaaS product, data pipelines, AI agents, and telemetry; contribute to product and tech strategy; work with customers; set engineering best practices and mentor teammates.
Top Skills: AIAi AgentsData PipelinesJavaScriptPythonSaaSTelemetry Infrastructure
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