60 senior react developer jobs at 27 companies in Plainfield, CT

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Senior Software Engineer
South Windsor or Charlotte
HybridFull Time
RCN Capital
RCN Capital: National direct lender for real estate investors.
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
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Senior Software Engineer
South Windsor or Charlotte
HybridFull Time
RCN Capital
RCN Capital: Directly provides mortgage loans for real estate investment properties.
7+ YOESenior software engineer with 7+ years, lead/architect, full stack in .NET 10, React, TypeScript, Azure, PostgreSQL/CosmosDB; AI/GenAI, offshore teams.
React, TypeScript, Redux, Zustand, Tailwind CSS, C#, .NET 10, Entity Framework Core, Azure, Azure DevOps, GitHub Actions, PostgreSQL, CosmosDB, LangChain, Semantic Kernel, Docker, Kubernetes
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Senior Full Stack Engineer (Java/React)
Taunton, Massachusetts, United States
$131k-$141k/yr OnsiteFull Time
General Dynamics Mission Systems
General Dynamics Mission SystemsNYSE: GD: Engineers secure communication and mission-critical defense technology systems.
5+ YOEBachelor's in Software Engineering or related field, 5+ years experience (or Master's+3), DoD Secret clearance and U.S. citizenship required, strong Java/React skills, SQL/PostgreSQL, EMR? (not listed)
SQL, PostgreSQL, Java, JavaScript, React, Hibernate, Spring, WildFly, REST, RESTCONF, Material UI, SNMP
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Senior Application Engineer (REMOTE or HYBRID TO MA)
Worcester, Massachusetts, United States
$101k-$126k/yr HybridFull Time
The Hanover Insurance Group
The Hanover Insurance GroupNYSE: THG: Provides property and casualty insurance products and services.
5+ YOESenior software developer with 7+ years of experience, skilled in React and Java/Spring Boot, strong communication, and ability to manage multiple priorities.
Java, Spring Boot, React, Docker, Kubernetes, GitHub Copilot, CI/CD, AWS, Azure, GCP
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
CVS Health
CVS HealthNYSE: CVS: Provides retail pharmacy, health insurance, and pharmacy benefit management services.
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
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Senior .NET Full Stack Developer Lead (React/AWS)
Hartford, Connecticut, United States
$64k-$115k/yr OnsiteFull Time
Cognizant
CognizantNASDAQ: CTSH: Provides IT consulting and technology services to global enterprises.
.NET Core/C# and React experience, AWS and SQL Server knowledge, proven technical leadership, stakeholder communication, and experience working with distributed/offshore teams.
.NET, .NET Core, C#, React, React.js, JavaScript, AWS, SQL Server
1w
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Senior .NET Full Stack Developer Lead (React/AWS)
Hartford, Connecticut, United States
$64k-$115k/yr OnsiteFull Time
Cognizant
CognizantNasdaq: CTSH: Provides IT consulting and digital business process services.
Proven experience designing and delivering enterprise applications with .NET Core/C#, React, AWS, and SQL Server; technical leadership and stakeholder-facing skills required.
.NET Core, C#, React.js, JavaScript, AWS, SQL Server
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Senior Application Engineer (REMOTE or HYBRID TO MA)
Worcester, Massachusetts, United States
$101k-$126k/yr HybridFull Time
The Hanover Insurance Group
The Hanover Insurance GroupNYSE: THG: Provides property and casualty insurance products to individuals and businesses.
5+ YOESenior software engineer with 5+ years (or 7+), strong JS/React, Java/Spring Boot, AWS cloud, CI/CD, and collaborative skills.
React, Spring Boot, Java, Kubernetes, Docker, CI/CD, AWS, Azure, GCP, GitHub Copilot, UX/UI
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Senior Software Engineer
Merrimack or Smithfield
OnsiteFull Time
Fidelity Investments
Fidelity Investments: Provides investment management, retirement planning, and brokerage services.
Senior software engineer with RESTful APIs, JavaScript frameworks, databases, SDLC, CI/CD, mentoring, and strong OO design.
JavaScript, Angular, AngularJS, Backbone.js, React.js, CSS3
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Senior Developer / Lead Developer
Allentown or Providence or Louisville
HybridFull Time
PPL
PPLNYSE: PPL: Provides electricity and natural gas to millions of customers.
5+ YOEBachelor's degree, 5+ years software development experience (senior) or 7+ (lead); proficiency in C#, Java, TypeScript, frontend frameworks, APIs and SQL; experience with cloud, microservices, and emerging tech.
C#, Java, TypeScript, JavaScript, Python, Angular, React, SQL, Microservices, Cloud Architecture, APIs, SAP ABAP, SAP S/4HANA, Kubernetes, Azure Kubernetes Service (AKS), DevOps, RPA, Artificial Intelligence
2w
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Senior .NET Full Stack Developer Lead (React/AWS)
Hartford, Connecticut, United States
$64k-$115k/yr OnsiteFull Time
Cognizant
CognizantNasdaq: CTSH: Provides global information technology and business process outsourcing services.
Proven experience with .NET Core/C#, React.js, JavaScript, AWS, and SQL Server; experience leading technical teams, strong communication and software engineering best practices.
.NET Core, C#, React.js, JavaScript, AWS, SQL Server
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Senior Research Engineer - Experimental Engineering
Yonkers or Washington or Colchester or Arizona or California or Connecticut or Illinois or Maryland or Massachusetts or Michigan or New Hampshire or New Jersey or New York or Texas or Vermont or Virginia or District of Columbia
$115k-$160k/yr RemoteFull Time
Consumer Reports
Consumer Reports: Tests products and publishes ratings for consumer advocacy.
Senior research engineer with deep full-stack software engineering experience, strong applied AI/ML knowledge, prototyping and R&D experience, Python/FastAPI and frontend (React/React Native) familiarity, and ability to lead experiments and mentor engineers.
AI, Machine Learning, Python, FastAPI, React, React Native, RAG
1mo
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Senior Full Stack Engineer
Framingham, Massachusetts, United States
$110k-$130k/yr HybridFull Time
Sincere
Sincere: Builds technology for celebrations and sharing digital memories
7+ YOE7+ years professional software development; experience across Ruby on Rails, TypeScript, React/Next.js, relational and NoSQL databases, cloud infrastructure (AWS), containerization, and AI-assisted tools; strong product and UX focus.
Ruby on Rails, TypeScript, React, Next.js, MySQL, Postgres, Redis, MongoDB, Sidekiq, OpenSearch, AWS, Docker, Claude Code, Codex, Datadog, Mixpanel, Terraform
2mo
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Senior Software Developer (Hybrid or Remote)
Canton or Raleigh or Farmington or Boston
$101k-$143k/yr HybridFull Time
Intact Insurance Specialty Solutions
Intact Insurance Specialty SolutionsToronto Stock Exchange: IFC: Provides specialized property and casualty insurance and risk services.
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
1mo
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Lead Developer
Allentown or Louisville or Providence
HybridFull Time
PPL Corporation
PPL CorporationNYSE: PPL: Provides electricity transmission, distribution, and utility services.
7+ YOEBachelor's degree (or equivalent), 7+ years experience (Lead) or 5+ years (Senior); strong software development background with C#, Java, JavaScript/TypeScript, front-end frameworks (Angular/React), APIs/JSON, and SQL; experience with microservices, cloud, containerization and Kubernetes preferred.
C#, Java, Python, JavaScript, TypeScript, Angular, React, SQL, JSON, APIs, Microservices, DevOps, Multi-Cloud, IoT, Intelligent Automation, RPA, Test automation, Machine Learning, Artificial Intelligence, Kubernetes, Azure Kubernetes Service (AKS), SAP ABAP
2mo
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Senior Software Engineer
South Windsor or Charlotte
HybridFull Time
RCN Capital
RCN Capital: A national private lender providing financing for real estate investors.
7+ YOE7+ years software development experience with 3+ years in a senior/lead capacity. Strong experience with Microsoft .NET 10, C#, React, TypeScript, Azure, PostgreSQL, cloud-native architectures, CI/CD, and AI/LLM integrations. Bachelor's required.
Microsoft .NET 10, C#, React, TypeScript, Entity Framework Core, PostgreSQL, CosmosDB, Microsoft Azure OpenAI Services, Microsoft Azure Functions, Microsoft Azure App Services, Microsoft Azure Service Bus, Microsoft Azure Key Vault, Microsoft Azure AI Search, Microsoft Azure DevOps, GitHub Actions, LangChain, Semantic Kernel, Docker, Kubernetes, Tailwind CSS, Redux, Zustand
2mo
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Senior Software Engineer - JobID-0010
Fall River, Massachusetts, United States
$135k-$273k/yr HybridFull Time
Innovative Defense Technologies
Innovative Defense Technologies: Defense technology delivering mission-critical software and systems to government clients.
8+ YOE8+ years software engineering with Java/C#/Kotlin/Scala; experience with distributed services; able to travel up to 10%; active Secret U.S. security clearance.
Java, C#, Kotlin, Scala, React, Redux, TypeScript, PostgreSQL, Maven, Gradle, Jenkins, Git, Kubernetes, Docker, JDBC, Hibernate
5d
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Senior Software Engineer, Facilities
Boston or Framingham
$170k-$195k/yr HybridFull Time
Veho
Veho: Provides AI-powered last-mile delivery services for e-commerce brands.
5+ YOE5+ years building and deploying high-traffic production applications; strong full-stack skills with TypeScript, Node.js, GraphQL, and React; AWS experience; supply chain or warehouse domain preferred.
TypeScript, Node.js, GraphQL, React, AWS
2mo
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Senior Frontend Platform Engineer - Hybrid
Woonsocket, Rhode Island, United States
$100k-$125k/yr HybridFull Time
Branding Brand
Branding Brand: Develops mobile commerce platforms and applications for enterprise retailers.
Senior or Lead frontend engineer focused on architecture and platform development; strong React and micro frontend experience; design scalable frontend systems; expertise in module federation and shared libraries.
React, Webpack, Vite, module federation, single-spa, build tools, SSR/CSR
1mo
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Senior Full Stack Engineer - Team Lead
Seattle or Chicago or Boston or Austin or Tampa or Philadelphia or Salt Lake City or Providence or Portland or Atlanta or Raleigh or Nashville or Columbus or Phoenix
RemoteFull Time
RxVantage
RxVantage: Software platform connecting healthcare providers with life science resources.
8+ YOE8+ years software engineering experience with React, TypeScript, Node.js, API design (GraphQL/REST), SQL/PostgreSQL, data pipelines, CI/CD, cloud (AWS) and team leadership.
React, TypeScript, GraphQL, REST, Node.js, SQL, PostgreSQL, Nx, Turborepo, Yarn Workspaces, Python, AWS, Jira, Confluence, Claude Code, React Native, Capacitor

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