84 reactjs developer jobs at 27 companies in Guilford, CT
4d
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Full Stack Software Engineer (Python)
Irving or Stamford
$74k-$116k/yr HybridFull Time
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
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
1d
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Sr. Software Engineer Web
Shelton, Connecticut, United States
$119k-$149k/yr OnsiteFull Time
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
6d
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Java Developer
Hartford, Connecticut, United States
OnsiteFull Time
Experience in Java application development; familiarity with Angular, React, and SQL; strong communication and problem-solving; bachelor's degree or equivalent experience required.
Java, Angular, React, SQL, SQL Server
1mo
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Senior Product Software Engineer - Linear Advertising Platform
Bristol or New York City
$142k-$199k/yr HybridFull Time
5+ YOE5+ years software engineering experience; proficiency with Java, Spring Boot, ReactJS, relational and NoSQL databases, AWS, Terraform, Docker, Kubernetes, data streaming (Kafka/Kinesis/SNS/SQS), Python, and modern DevOps practices.
Java, Spring Boot, ORMs, ReactJS, MySQL, Postgres, DynamoDB, Redis, AWS, Terraform, Docker, Kubernetes, Apache Kafka, Kinesis, SNS, SQS, Cursor, Claude Code, GitHub Copilot, Python
1mo
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Senior Product Software Engineer - Linear Advertising Platform
Bristol or New York
$142k-$199k/yr HybridFull Time
5+ YOE5+ years software engineering experience; proficiency in Java, Spring Boot, ORMs, ReactJS; experience with MySQL/Postgres, DynamoDB, Redis; AWS, Terraform, Docker, Kubernetes; Kafka/Kinesis/SNS/SQS; Python and AI coding tools; Ad Tech domain knowledge.
Java, Spring Boot, ORMs, ReactJS, MySQL, Postgres, DynamoDB, Redis, AWS, Terraform, Docker, Kubernetes, Apache Kafka, Kinesis, SNS, SQS, Cursor, Claude Code, GitHub Copilot, Python
1w
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Staff Software Engineer
Hartford or Charlotte or Columbus or Chicago
$116k-$174k/yr HybridFull Time
8+ YOE8+ years software development experience; expertise in Java/Python/C#/Go, full-stack frameworks, cloud platforms, databases, CI/CD, and AI-assisted development; BS in CS/Engineering or related required.
Java, Python, C#, Go, Angular, React, Node.js, RESTful APIs, AWS, GCP, Azure, SQL Server, Snowflake, PostgreSQL, Oracle, MongoDB, CI/CD, GitHub Copilot, Microsoft Copilot, Copilot Studio, Azure AI Foundry, Google Vertex AI, GCP Agent Development Kit (ADK)
3w
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Python AWS Developer
Hartford or Lafayette
$81k-$172k/yr HybridFull Time
6+ YOE6+ years Python backend development, REST API (FastAPI/Flask), strong SQL, hands-on AWS (Lambda,S3,SQS,DynamoDB,EC2,EKS), CI/CD and production support experience.
Python, FastAPI, Flask, AWS Lambda, Amazon S3, Amazon SQS, DynamoDB, Amazon EC2, Amazon EKS, Boto3, CloudWatch, Jenkins, GitHub Actions, Terraform, CloudFormation, OpenShift, Kubernetes, PostgreSQL, Aurora, Java, ReactJS, Spring Boot, SQL
1mo
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Circle Lead Engineer (CLE) - Personal Insurance
Hartford, Connecticut, United States
$154k-$254k/yr HybridFull Time
7+ YOE2+ Mgmt7+ years software development, 2+ years technical leadership, bachelor’s in CS or related STEM (or equivalent), proficiency in Python, JavaScript/TypeScript, React, AWS/CDK, Terraform, Jenkins, GitHub, API development, and AI/GenAI; strong communication and delivery skills.
Python, JavaScript, TypeScript, React, AWS, AWS CDK, Terraform, Jenkins, GitHub, API Development, AI/GenAI
1mo
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Full Stack Developer, MarTech
New Haven, Connecticut, United States
OnsiteFull Time
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
2mo
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Senior Software Developer (Hybrid or Remote)
Canton or Raleigh or Farmington or Boston
$101k-$143k/yr HybridFull Time
6+ YOE6+ years software development experience; expertise in .NET Core/C#, ASP.NET MVC, Entity Framework, Angular or React, Microsoft Azure; strong SQL Server and CI/CD experience; Bachelor’s or Master’s in CS/Engineering.
.NET Core, C#, ASP.NET MVC, Entity Framework, Angular, React, Microsoft Azure, Microsoft Azure Functions, Microsoft App Services, Microsoft Azure Storage, Microsoft Azure DevOps, SQL Server, CI/CD
5d
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Senior Software Development Engineer (Java, Nest, React)
Texas or North Carolina or Scottsdale or Florida or Illinois or Hartford
$83k-$204k/yr RemoteFull Time
5+ YOE5+ years software development experience; strong backend and API development using Java Spring Boot, Node.js, GraphQL; Kubernetes, observability, API design, and cloud-native experience; GCP preferred; bachelor's degree preferred.
Java Spring Boot, Node.js, GraphQL, Kubernetes, Gradle, NestJS, GitHub Actions, Google Cloud Platform (GCP), GitHub Copilot, Claude Code, Cursor, Model Context Protocol (MCP), React, GitHub
2mo
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Senior Software Engineer
South Windsor or Charlotte
HybridFull Time
7+ YOE7+ years software development; senior/lead engineer; full stack with .NET, React/TypeScript; AI/GenAI; Azure; PostgreSQL/CosmosDB; cloud-native; offshore collaboration.
React, TypeScript, Redux, Zustand, Tailwind CSS, C#, .NET 10, .NET Core, Entity Framework Core, Azure Functions, App Services, Service Bus, Azure DevOps, GitHub Actions, PostgreSQL, CosmosDB, LangChain, Semantic Kernel, Docker, Kubernetes
2d
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Software Engineer II-Hybrid Role
Greenwich, Connecticut, United States
HybridFull Time
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
1w
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Generative AI Lead Engineer
Dallas or Stamford or Chicago
$120k-$140k/yr HybridFull Time
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
3mo
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Full Stack Engineer, Senior
Oakland or Seattle or WA or OH or CA or Long Beach or AZ or CO or CT or FL or GA or MD or MN or NV or OR or El Dorado Hills or Lodi or Rancho Cordova or Redding or San Diego or Woodland Hills or AL or IL or VA or WI or TX or NY
$103k-$174k/yr HybridFull Time
5+ YOE5+ years full stack development; BA/BS or equivalent IT experience; React/Vue/Angular; .NET/Java/Node.js/Python APIs; SQL/NoSQL; Azure preferred; Docker; IaC; CI/CD; AI tools; healthcare experience preferred.
React, Vue, Angular, JavaScript, TypeScript, .NET, Java, Node.js, Python, MS SQL Server, Oracle, NoSQL, REST, Azure, AWS, GCP, Docker, Kubernetes, Ansible, Bicep, ARM, Terraform, GitHub, GitLab, Bitbucket, Git
2mo
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Software Engineer
New York City or Old Greenwich
OnsiteFull Time
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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Sr. SAP Commerce Platform Engineer
West Hartford or United States
RemoteFull Time
6+ YOE6+ years SAP Commerce Cloud backend experience, extension development (type system, persistence, Spring, ImpEx, FlexibleSearch), integrations with ERP/PIM/CRM, Dynatrace troubleshooting; SQL and Solr, headless architecture experience preferred.
SAP Commerce Cloud, Hybris, Spring, ImpEx, FlexibleSearch, Dynatrace, SQL, Solr, Spartacus, React, Contentful, Algolia, Cloudinary, OCC, Kanban
1mo
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Sr Software Engineer
Hartford or Saint Paul
$139k-$230k/yr OnsiteFull Time
6+ YOEBachelor's degree or equivalent, 6+ years software engineering experience, cloud and API proficiency, experience leading teams, strong communication and problem-solving skills.
Claude, GitHub Co-Pilot, AWS, EKS, Azure, REST, GraphQL, Terraform, AWS CDK, React.js, Node.js, JavaScript, TypeScript, Python, Kafka, DB2, MySQL, PostgreSQL, MongoDB, DynamoDB, NUnit, XUnit, Moq, Jest, Cypress, Git, GitHub, CloudBees Jenkins, Jenkins, Azure DevOps, OAuth 2.0, OpenID Connect, Dynatrace, ELK stack, OpenTelemetry, Jira, Rally
2mo
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Lead Software Engineer (Hybrid)
Hartford, Connecticut, United States
$130k-$176k/yr HybridFull Time
7+ YOE7+ years software engineering experience with .NET/C#, Azure, cloud-native microservices, DevOps/IaC, AI integration, CI/CD, containerization, and leadership in engineering practices.
.NET, C#, ASP.NET Core, Azure, Azure AI Services, Cognitive Services, ML, OpenAI, Bot Services, Terraform, Bicep, ARM, Docker, Kubernetes, REST, GraphQL, Python, TensorFlow, PyTorch, Pega, Camunda, Appian, Angular, React, SQL, Kafka, RabbitMQ
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