32 reactjs developer jobs at 19 companies in Westhampton, NY

6d
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Full Stack Software Engineer (Python)
Irving or Stamford
$74k-$116k/yr HybridFull Time
Gartner
GartnerNYSE: IT: Provides research and advisory services for business leaders.
2+ YOEBachelor's in Computer Science or related,2+ years full-stack software development, strong Python knowledge, experience with Django/Flask, HTML/CSS/JavaScript/jQuery, relational SQL databases, and AWS or ReactJs.
Python, Django, Flask, HTML, CSS, JavaScript, jQuery, AWS, ReactJs, SQLServer, MySQL, PostgreSQL, HTTP, SOAP, REST, XML, JSON
1mo
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Engineer
Shelton, Connecticut, United States
$103k-$128k/yr OnsiteFull Time
Subway
Subway: Global restaurant chain specializing in made-to-order submarine sandwiches.
2+ YOE2–5 years software engineering experience; proficiency with JavaScript, Node.js, ReactJS, and React Native; knowledge of REST APIs, databases, OOP, and version control; strong problem-solving and collaboration skills; bachelor's degree or equivalent.
JavaScript, Node.js, ReactJS, React Native, REST APIs, CI/CD
3d
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Sr. Software Engineer Web
Shelton, Connecticut, United States
$119k-$149k/yr OnsiteFull Time
Subway
Subway: Global quick-service restaurant chain specializing in made-to-order sandwiches.
6+ YOE6–9 years of professional software engineering experience; JavaScript, Node.js, ReactJS, React Native, REST APIs, databases, version control, testing, and software architecture knowledge. Bachelor's degree or equivalent experience.
JavaScript, Node.js, ReactJS, React Native, REST APIs, CI/CD
1mo
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Full Stack Developer, MarTech
New Haven, Connecticut, United States
OnsiteFull Time
ASSA ABLOY
ASSA ABLOYNasdaq Stockholm: ASSA B: Global manufacturer of locks and automated entrance systems.
5+ YOE5+ years full‑stack development with strong front-end focus (React, Tailwind); experience with PHP/Laravel, Node.js, SQL, CI/CD, Docker, accessibility, CMS-driven marketing, and translating Figma to production.
React, Next.js, Tailwind, Laravel, PHP, SQL, Node.js, GitHub Actions, Docker, Figma, Changesets, Turborepo, Yarn, NPM, JSON-LD, Adobe Experience Manager (AEM), Maven, Apache Sling Models, JCR/Oak, GTM, GA4, OneTrust, Search Console, Sentry, APM, Git, Microsoft Office
3w
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.NET Developer
Deer Park, New York, United States
$115k-$120k/yr RemoteFull Time
Fragrance.com
Fragrance.com: Online retailer of genuine brand-name fragrances and beauty products.
4+ YOE4+ years building C#/.NET applications, SQL Server, web framework experience (Blazor/ASP.NET/React), Git/SVN, RabbitMQ preferred, production support experience, AI tool (Claude) usage, clear written communication.
C#, .NET, SQL Server, Blazor, ASP.NET, React, Git, SVN, RabbitMQ, Jira, PagerDuty, Claude
4d
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Software Engineer II-Hybrid Role
Greenwich, Connecticut, United States
HybridFull Time
Payarc
Payarc: Technology-driven payment processing and merchant services platform.
2+ YOERequires 2–4 years of software development experience, a bachelor's degree or equivalent, proficiency in a core language/framework, RESTful APIs, relational databases, Git/GitHub, and strong analytical skills.
PHP, Laravel, Nova, Apiato, Java, C#, Python, Go, C++, JavaScript, React, Angular, jQuery, HTML5, CSS3, LESS, SASS, Material Design, Kotlin, Swift, Objective-C, React Native, Flutter, Retrofit, OkHttp, Firebase, MySQL, Oracle, Firebird, Amazon Web Services (AWS), Git, GitHub, Docker, Kubernetes, TensorFlow, PyTorch, scikit-learn, JIRA, Confluence, Crashlytics, New Relic, Azure, GCP, TDES, DUKPT, PAX, AMP, Magtek
2w
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Generative AI Lead Engineer
Dallas or Stamford or Chicago
$120k-$140k/yr HybridFull Time
Cognizant
CognizantNasdaq: CTSH: Provides IT consulting and digital business process services.
Strong experience with generative AI, LLMs and prompt engineering; hands-on development using .NET, React, Python; designing RAG pipelines, model training/fine-tuning, and Azure deployments.
.NET, React, Python, Claude, LangChain, LlamaIndex, Azure
2mo
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Software Engineer
New York City or Old Greenwich
OnsiteFull Time
Ellington Management Group
Ellington Management Group: Manages alternative investment funds specializing in mortgage-backed securities.
0+ YOEStrong programming skills, SQL, and knowledge of one or more of C#, JavaScript, or TypeScript; Python helpful; experience with APIs, CI/CD, and AI tooling; strong problem-solving and ownership.
SQL, C#, JavaScript, TypeScript, Python, React, Angular, CI/CD
1mo
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Senior Frontend Engineer (React.js / Micro Frontends)
Stamford, Connecticut, United States
$145k-$175k/yr OnsiteFull Time
Publicis Groupe
Publicis GroupeEuronext Paris: PUB: Global communications, advertising, and digital transformation holding.
5+ YOE5+ years frontend experience with React.js, JavaScript (ES6+), HTML5/CSS3, state management (Zustand/Redux/Context API), testing (Jest/React Testing Library), RESTful APIs, Microsoft Azure/Azure DevOps, CI/CD, module federation/micro frontends, performance, security, and accessibility.
React.js, JavaScript (ES6+), HTML5, CSS3, Material-UI, Styled Component, Webpack, Rollup, Storybook, React-Router-Dom, Zustand, Redux, Context API, Jest, React Testing Library, RESTful APIs, Microsoft Azure, Microsoft Azure DevOps, CI/CD, module federation, Docker, Next.js, DevExtreme DataGrid, ExcelJS
2mo
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Senior Software Engineer, Calibration, Automation & Tools
New Haven, Connecticut, United States
$124k-$187k/yr HybridFull Time
D-Wave Quantum
D-Wave QuantumNYSE: QBTS: Provides commercial quantum computing systems, software, and cloud services.
5+ YOEBachelor's in CS/ECE/math/physics; 5+ years full‑stack experience; strong Python and another high‑level language (Java/Go/C/C++); front‑end frameworks (React/Angular/Vue.js); SQL and PostgreSQL/Oracle; Git, CI/CD, AWS; testing and strong communication.
Python, Java, Go, C, C++, React, Angular, Vue.js, PostgreSQL, Oracle, Git, AWS, CI/CD
1mo
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Senior Frontend Engineer (React.js / Micro Frontends)
Stamford, Connecticut, United States
$145k-$175k/yr OnsiteFull Time
Publicis Groupe
Publicis GroupeEuronext Paris: PUB: Global advertising and digital transformation agency holding.
5+ YOE5+ years frontend experience with React.js, JavaScript (ES6+), HTML5/CSS3; experience with Material-UI, Styled Component, Webpack/Rollup, Storybook, React-Router-Dom, state management (Zustand/Redux/Context API), custom hooks, Jest/React Testing Library, RESTful APIs, Microsoft Azure and Azure DevOps, CI/CD, module federation and micro frontend arc...
React.js, JavaScript (ES6+), HTML5, CSS3, Material-UI, Styled Component, Webpack, Rollup, Storybook, React-Router-Dom, DOM, Zustand, Redux, Context API, Jest, React Testing Library, RESTful APIs, Microsoft Azure, Microsoft Azure DevOps, CI/CD, module federation, Docker, Next.js, DevExtreme DataGrid, ExcelJS
2mo
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Generative AI Lead Engineer
Dallas or Stamford or Chicago
$120k-$140k/yr HybridFull Time
Cognizant
CognizantNasdaq: CTSH: Provides global information technology and business process outsourcing services.
Generative AI, LLMs, prompt engineering; hands-on with .NET, React, Python; AI/ML architecture design (RAG); model training and optimization; Azure deployment
.NET, React, Python, LangChain, LlamaIndex, Claude, Azure
2mo
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Generative AI Lead Engineer
Dallas or Stamford or Chicago
$120k-$140k/yr HybridFull Time
Cognizant
CognizantNASDAQ: CTSH: Provides IT consulting and technology services to global enterprises.
5+ YOEStrong experience in Generative AI, LLMs, prompt engineering; hands-on with .NET, React, Python; experience with RAG architectures, API integrations; Azure cloud; ability to deploy AI-enabled applications.
.NET, React, Python, LangChain, LlamaIndex, Claude, Azure, RAG
1mo
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Associate, Front Office Software Engineer
Stamford or Houston
OnsiteFull Time
Castleton Commodities International
Castleton Commodities International: Invests in and manages global energy and commodity assets.
2+ YOEBachelor's or Master's in CS/STEM, 2+ years software engineering experience, strong CS fundamentals, backend Python proficiency, front-end experience (React/Angular/TypeScript) preferred, cloud (AWS) and data warehousing (Snowflake) familiarity, Linux and CI/CD experience, strong communication.
Python, React, Angular, TypeScript, AWS, Snowflake, Linux/Unix, CI/CD
2w
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Senior Forward Deployed Software Engineer (FDE)
Holtsville or Lincolnshire
$97k-$145k/yr HybridFull Time
Zebra Technologies
Zebra TechnologiesNASDAQ: ZBRA: Provides enterprise-grade hardware and software for asset tracking.
5+ YOEBachelor's degree,5+ years software engineering experience (or 3+ with advanced degree),full-stack cloud and Android expertise,ability to deploy and debug in customer environments,and strong communication skills.
Java, Spring Boot, Hibernate, Node.js, Express, NestJS, JavaScript, TypeScript, ReactJS, Google Cloud (GCP), AWS, Azure, Docker, Kubernetes, CI/CD, Microservices, MySQL, PostgreSQL, MongoDB, Firebase, BigQuery, Android SDK, Kotlin, Claude Code, GitHub Copilot, Cursor, Git, GitHub
1w
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Software Engineer
Mechanicsburg or Charlotte or Stamford or Chicago or Alpharetta or Baltimore
$85k-$140k/yr HybridFull Time
Synchrony
SynchronyNYSE: SYF: Provides consumer credit products and private label retail cards.
2+ YOEBachelor's degree or equivalent, 2+ years industry experience, knowledge of SDLC, web technologies (HTML,CSS,JavaScript), server-side platforms (Java,Kotlin,NodeJS), modern frameworks and CI/CD, strong problem-solving skills.
HTML, CSS, Javascript, Spring framework, VueJs, React, Java, Kotlin, NodeJS, GitLab, GitHub, BitBucket
1mo
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Agentic Solutions Engineer
Shelton, Connecticut, United States
HybridFull Time
BMG360
BMG360: Performance-focused marketing agency driving client growth.
3+ YOE3+ years backend/full-stack engineering with expert Python and strong TypeScript/React skills; experience building REST/GraphQL APIs, Django/DRF, Celery/Temporal, PostgreSQL, MCP protocol familiarity, and cloud (AWS/GCP).
Model Context Protocol (MCP), REST, GraphQL, Python, TypeScript, JavaScript, Django, Django REST Framework (DRF), React, React-Admin, FastAPI, Celery, Temporal, Pydantic, httpx, pytest, Node.js, PostgreSQL, Snowflake, WebSockets, SSE, OAuth2, JWT, OpenAPI, Swagger, Redoc, AWS, GCP, Lambda, Cloud Run, S3, GCS, Docker, GitHub Actions, Flowise, LangChain, Claude, Anthropic, GA4, Meta, Google
2mo
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Software Engineering Manager
Hicksville or Waltham or Brooklyn
HybridFull Time
National Grid
National GridLondon Stock Exchange: NG: Operates electricity and natural gas transmission and distribution networks.
15+ YOE5+ Mgmt15+ years software development, 5+ years management, hands-on with .NET, React, TypeScript, Python; experience with GitHub, Terraform, Docker, Kubernetes, cloud (AWS/Azure/GCP), DevOps/CI/CD and IaC.
GitHub, Terraform, Docker, Kubernetes, AWS, Azure, GCP, .NET, React, TypeScript, Python, CI/CD, IaC
1w
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Engineering Manager, People Applications
Washington, D.C. or Austin or Baltimore or Chicago or Hartford or New Haven or Philadelphia or Miami or Atlanta or United States or Hungary
$163k-$240k/yr HybridFull Time
DoorDash
DoorDashNYSE: DASH: Local food delivery and on-demand logistics platform.
7+ YOE2+ MgmtBachelor's or master's degree in computer science or related field; 7+ years software development, 2+ years managing full-stack teams, and expertise in distributed systems, AI, Node.js, TypeScript, React, Python, Docker, and Kubernetes.
Gem, Covey, Node.js, TypeScript, React, Python, Docker, Kubernetes, LLMs
1w
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Manager Tech Lead Web US
Stamford, Connecticut, United States
$132k-$165k/yr HybridFull Time
Philip Morris International
Philip Morris InternationalNYSE: PM: Global producer of tobac and smoke-free nicotine products.
Technical leadership for front-end, digital experience, and commerce delivery; strong frontend, commerce, CI/CD and systems integration experience; hands-on with React/Next.js/Node.js/TypeScript; experience mentoring engineers and driving operational excellence.
Adobe Experience Manager (AEM), React, Next.js, Node.js, TypeScript, SAP Commerce (Hybris), AWS