43 net developer jobs at 19 companies in Hatfield, MA

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.Net Developer
Fort Mill or Hartford
OnsiteFull Time
Infosys
InfosysNYSE: INFY: Provides IT consulting, software development, and business outsourcing services.
Experience with .NET (VB.NET, ASP.NET, C#), HTML, web services, scripting, cloud (AWS), and MySQL/MongoDB. Bachelor\u0002s degree or equivalent experience; authorized to work in the US without employer sponsorship.
.NET, VB.NET, ASP.NET, C#, HTML, Web Services, AWS, MySQL, MongoDB
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Senior Full Stack .NET Developer
Hartford, Connecticut, United States
$68k-$132k/yr HybridFull Time
Cognizant
CognizantNasdaq: CTSH: Provides IT consulting and digital business process services.
5+ YOEBachelor's degree in CS/IT/Engineering, 5+ years software development experience, 5+ years .NET and Angular, AWS and Python experience, strong SDLC knowledge and communication skills.
.NET, Angular, AWS, Python, CI/CD, Docker, Kubernetes
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Senior Full Stack .NET Developer
Hartford, Connecticut, United States
$68k-$132k/yr HybridFull Time
Cognizant
CognizantNasdaq: CTSH: Provides global information technology and business process outsourcing services.
5+ YOE5+ years professional experience, 5+ years with .NET and Angular, AWS and Python experience, BS in CS/IT/Engineering or related, strong SDLC and communication skills.
.NET, Angular, AWS, Python, Docker, Kubernetes, CI/CD
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Senior Full Stack .NET Developer
Hartford, Connecticut, United States
$68k-$132k/yr HybridFull Time
Cognizant
CognizantNASDAQ: CTSH: Provides IT consulting and technology services to global enterprises.
5+ YOE5+ years professional experience with .NET and Angular, AWS and Python experience, bachelor's degree in CS/IT/Engineering, strong SDLC, problem-solving and communication skills.
.NET, Angular, AWS, Python, Docker, Kubernetes, CI/CD
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CAD Software Developer
Bloomfield, Connecticut, United States
OnsiteContract
Delan Associates
Delan Associates: Provides engineering and professional services to government agencies.
Experience developing integrations with AutoCAD and Zuken e3, SQL/SQL Server, Power BI (Power Query,DAX), Microsoft Power Platform, .NET and migrating Access/VBA to SQL; strong collaboration and software validation knowledge.
AutoCAD, Zuken e3, SQL, Power BI, Power BI Desktop, Power Query, DAX, SQL Server, Oracle DB, JSON, Microsoft Excel, Microsoft Power Platform, Power Automate, Power Apps, Excel VBA, .NET, Microsoft Access
2w
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Senior Software Engineer (Technical Lead) BSI - (Claude, GitHub, Python, NET/C#, Angular, AWS)
Hartford or Atlanta or Cockeysville or Saint Paul
$139k-$230k/yr HybridFull Time
Travelers
TravelersNew York Stock Exchange: TRV: Provider of commercial and personal property casualty insurance.
5+ YOE5+ years software engineering experience, experience shipping LLM/AI agent production systems, proficiency with GitHub, Python, .NET/C#, Angular, AWS, databases, and strong communication and leadership skills.
GitHub, Python, NET/C#, Angular, AWS, OCF, Mongo, DocumentDB, SQL Server, Claude Agent SDK, LangGraph, AgentCore, Anthropic, OpenAI
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IT Software Systems Engineer
Holyoke, Massachusetts, United States
HybridContract
MWResource
MWResource: Specialized consulting and staffing for critical energy infrastructure systems.
5+ YOEBachelors in CS/EE/related, 5+ years Microsoft-stack software development and administration experience (Windows, SQL Server, IIS, .NET, Power Platform, Active Directory/Entra ID). Microsoft certs preferred; knowledge of networking and change control required.
Microsoft Windows, Microsoft SQL Server, Microsoft Internet Information Services, Microsoft Power Platform, .NET, Microsoft Active Directory, Microsoft Entra ID
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Sr. Software Engineer
Windsor, Connecticut, United States
$90k-$125k/yr HybridFull Time
Vertafore
VertaforeNYSE: ROP: Provides cloud-based software solutions for the insurance industry.
5+ YOEBachelor's degree, 5+ years professional experience with Java/.NET, RESTful APIs, enterprise design, security practices, database technologies, Agile experience, strong communication and troubleshooting skills.
T-SQL, SSMS, Query Analyzer, ETL, Java, .NET, Angular, Oracle, SQL Server, PostgreSQL, Cassandra, JavaScript
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Principal Software Development Engineer
Hartford, Connecticut, United States
$144k-$288k/yr HybridFull Time
CVS Health
CVS HealthNYSE: CVS: Provides retail pharmacy, health insurance, and pharmacy benefit management services.
10+ YOE10+ years software engineering experience with .NET/COBOL/Java/Node.js/JavaScript/Angular, DevSecOps and CI/CD expertise, GCP/Azure cloud experience, and experience modernizing enterprise systems.
.NET, COBOL, Java, Node.js, JavaScript, Angular, Generative AI technologies, GCP, Azure, GitHub, Jenkins, GitHub Actions, ArgoCD, Salesforce, Mulesoft, z/OS
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Lead Software Engineer (Hybrid)
Hartford, Connecticut, United States
$130k-$176k/yr HybridFull Time
Selective Insurance
Selective InsuranceNASDAQ: SIGI: Provides property and casualty insurance products to businesses and individuals.
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
2mo
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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
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
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Microsoft Dynamics CRM Developer
South Windsor, Connecticut, United States
$115k-$145k/yr OnsiteFull Time
Miller Electric Company
Miller Electric Company: Provides electrical and technology infrastructure construction and maintenance services.
2+ YOEMinimum 2 years developing Dynamics 365 CRM solutions; experience with C#, .NET, JavaScript, Power Platform, Azure DevOps, and SQL Server; strong communication and problem-solving skills.
C#, .NET, JavaScript, HTML, CSS, Power Automate, Power Apps, Power BI, Dynamics 365 SDK, Dynamics 365 CRM, Azure DevOps, GitHub, SQL Server, SSRS
2mo
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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
1mo
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Full Stack Staff Software Engineer — AI-Augmented Development
Charlotte or Hartford or Columbus or Chicago
$116k-$174k/yr HybridFull Time
The Hartford
The HartfordNYSE: HIG: Provides business and personal insurance, group benefits, and investments.
10+ YOE10+ years software engineering experience, 5+ years tech lead experience; Bachelor’s in CS or related (or equiv. experience); expertise in frontend and backend stacks, cloud (AWS/GCP), CI/CD, databases, APIs, and AI-augmented development tools.
React, Angular, Vue.js, TypeScript, HTML5, CSS3, Java, Spring Boot, Node.js, Express, Python, FastAPI, Django, .NET, RESTful APIs, GraphQL, gRPC, AWS, GCP, AWS Bedrock, GCP Vertex, Vertex Studio, Docker, Kubernetes, Jenkins, GitHub Actions, GitLab CI, SQL, NoSQL, PostgreSQL, MongoDB, DynamoDB, Redis, Kafka, RabbitMQ, GitHub Copilot, Cursor, Claude Opus, OpenAI, Anthropic, LangChain, Semantic Kernel, AutoGen, CrewAI
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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
3w
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Senior Software Engineer (Technical Lead) BSI - (Claude, GitHub, Python, NET/C#, Angular, AWS)
Hartford or Saint Paul or Hunt Valley
$139k-$230k/yr HybridFull Time
Travelers
TravelersNYSE: TRV: Provide property and casualty insurance for individuals and businesses.
5+ YOE5+ years software engineering experience,1+ year shipping production LLM/AI systems preferred,Bachelor's in CS or STEM or equivalent,experience leading technical direction and driving GenAI adoption.
Claude, GitHub, Python, NET/C#, Angular, AWS, OCF, Mongo, DocumentDB, SQL Server, Claude Agent SDK, LangGraph, AgentCore, Anthropic, OpenAI
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Cloud Solutions Architect / Database Engineer / AI Platform Architect (CT , Hartford )
Hartford, Connecticut, United States
$150k-$180k/yr OnsiteFull Time
ABCO Maintenance
ABCO Maintenance: Provides commercial facility maintenance and repair services.
Highly experienced architect with expertise in cloud architecture, C#/.NET, SQL Server, REST APIs, application security, Azure or AWS, enterprise integrations, and production AI/LLM applications.
C#, .NET, SQL Server, REST, ASP.NET Core, OAuth 2.0, OpenID Connect, JWT, SSO, RBAC, SSL/TLS, CI/CD, Retrieval-Augmented Generation (RAG), OpenAI, Azure OpenAI, Anthropic, Google AI, Large Language Model (LLM)
1mo
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Quality Engineer - FAIR (Temp)
Enfield, Connecticut, United States
$26-$36/hr OnsiteTemporary
Quest Global
Quest Global: Global engineering services for product development and lifecycle management.
3+ YOE3+ years quality/inspection experience (or 7+ without degree); AS/BS technical degree preferred; AS9102 FAIR experience; DISCUS and Net-Inspect use; blueprint reading, metrology, GD&T, PPAP, data entry, and Microsoft Office proficiency.
DISCUS, Net-Inspect, Microsoft Excel, Microsoft PowerPoint, Microsoft Outlook
1mo
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Full Stack Staff Software Engineer — AI-Augmented Development
Charlotte or Hartford or Columbus or Chicago
$116k-$174k/yr HybridFull Time
The Hartford
The HartfordNYSE: HIG: Provides property and casualty insurance, group benefits, and wealth management.
10+ YOE10+ years software engineering experience, 5+ years full-stack tech lead experience, BS in CS or equivalent, expertise in frontend/backend/cloud, AI-augmented development proficiency, strong testing and architecture skills.
React, Angular, Vue.js, TypeScript, Java, Spring Boot, Node.js, Express, Python, FastAPI, Django, .NET, RESTful APIs, GraphQL, gRPC, AWS, GCP, Docker, Kubernetes, PostgreSQL, MongoDB, DynamoDB, Redis, Kafka, RabbitMQ, Jenkins, GitHub Actions, GitLab CI, GitHub Copilot, Cursor, Claude Opus, OpenAI, Anthropic, GCP Vertex, AWS Bedrock, Vertex Studio, Semantic Kernel, CrewAI, LangChain, AutoGen