64 dotnet developer jobs at 33 companies in Killingly Center, CT

3mo
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Dynamics Software Developer
Newton, Massachusetts, United States
$113k-$141k/yr HybridFull Time
Bright Horizons
Bright HorizonsNYSE: BFAM: Provides child care, early education, and workforce education services.
3+ YOE3+ years in .NET web development and/or Microsoft Dynamics development (Plugins, Power Automate, JavaScript). Bachelor's degree in CS or related field; strong communication and collaboration skills.
.NET, Dynamics 365, PowerAutomate, JavaScript, ASP.Net MVC, SQL Server, Entity Framework
2d
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Staff Software Engineer
Needham, Massachusetts, United States
$142k-$188k/yr HybridFull Time
Alarm.com
Alarm.comNasdaq: ALRM: Provides cloud-based smart home security and automation solutions.
10+ YOEBachelor's degree in computer science, computer engineering, related field, or equivalent experience; 10+ years of software development; mentoring or leadership; C#/.NET, databases, networking, and device development experience.
C#, .NET, SQL Server, Kafka, Ember.js, iOS, Android, HVAC, Health Savings Account (HSA), Nasdaq
6d
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Dot Net Developer
Atlanta or Hartford or Raleigh or Richardson
$64k-$95k/yr OnsiteFull Time
Infosys
InfosysNYSE: INFY: Provides IT consulting, software development, and business outsourcing services.
.NET stack experience (.NET, ASP.NET, MVC, C#, WPF, WCF), Microsoft SQL Server and Entity Framework, strong OOP and API development skills, bachelor's degree or equivalent, agile experience preferred.
.NET, ASP.NET, MVC, C#, WPF, WCF, Microsoft SQL Server, Entity Framework, JavaScript
1w
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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
2d
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Principal Software Engineer
Mansfield, Massachusetts, United States
$152k-$190k/yr RemoteFull Time
eClinical Solutions
eClinical Solutions: Clinical data cloud platform and biometrics services for researchers.
10+ YOE10+ years in software design and development preferred; expert C#, .NET, ASP.NET, Angular, and TypeScript; experience with AI/LLM integration, Python or .NET, full-stack applications, SDLC, and technical leadership.
Microsoft .NET, C#, ASP.NET, Angular, TypeScript, HTML, CSS, Python, OpenAI, Azure OpenAI, SQL, Microsoft SQL Server, AWS, LLMs, AI
2mo
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L4 Engineer III
Needham, Massachusetts, United States
$120k-$141k/yr OnsiteFull Time
Advisor360°
Advisor360°: Provides an integrated SaaS platform for wealth management firms.
5+ YOE5+ years software development experience with SaaS applications; experience with cloud platforms (AWS/Azure/Google Cloud), .NET, CI/CD, version control, RESTful APIs, database design, mentoring, and occasional on-call rotations.
AI, AWS, Azure, Google Cloud, .NET, CI/CD, version control systems, RESTful APIs
3w
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Senior Software Engineer
Natick, Massachusetts, United States
$130k-$170k/yr HybridFull Time
Cognex
CognexNASDAQ: CGNX: Provides machine vision systems and sensors for industrial automation
3+ YOEBS/MS in ECE or CS required,3+ years software development experience,proficiency in C++,C#,Java,Python,JavaScript,Embedded Linux/Yocto,Microsoft Visual Studio and .NET,agile/scrum experience and strong debugging skills.
C++, C#, Java, Python, JavaScript, Embedded Linux, Yocto, Microsoft Visual Studio, Microsoft .NET, Microsoft WinForms, Microsoft WPF
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
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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Backend Software Engineer
Waltham or Boston or United States
$127k-$171k/yr HybridFull Time
ERGO NEXT Insurance
ERGO NEXT Insurance: Digital insurance provider tailored for small businesses and entrepreneurs.
8+ YOE8+ years backend development with Java/Kotlin or similar, B.Sc. in Computer Science, strong OOP, distributed/cloud experience (AWS preferred), relational DB/SQL skills, and strong communication.
Kotlin, Java, Python, .NET, AWS, Relational Databases, SQL, CI / CD
1mo
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Backend Software Engineer
Waltham or Boston
$127k-$171k/yr HybridFull Time
ERGO NEXT Insurance
ERGO NEXT Insurance: Provides digital insurance tailored for small business owners and entrepreneurs.
8+ YOE8+ years backend development experience with Java/Kotlin or similar; BSc in Computer Science required; strong OOP, SQL, cloud (AWS) and CI/CD experience; excellent communication skills.
Kotlin, Java, Python, .NET, AWS, SQL, CI/CD, Zoom
1w
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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
2mo
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Sr. Software Engineer (Hybrid)
Hartford or Charlotte or Short Hills
$123k-$157k/yr HybridFull Time
Selective Insurance
Selective InsuranceNASDAQ: SIGI: Provider of commercial and personal property and casualty insurance.
5+ YOE5+ years of experience designing and developing complex applications; Bachelor's preferred in CS/Engineering; strong .NET/C#, API, SQL; cloud, Azure, DevOps, and leadership skills.
C#, .NET, API development, SQL, Azure, Container Apps, API Management, App Gateway, Key Vault, App Services, Logic Apps, SQL MI, Infrastructure-as-Code, Bicep, ARM, Terraform, Angular, SAFe
1mo
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Senior Applications Developer
Southborough, Massachusetts, United States
$100k-$140k/yr OnsiteFull Time
nirvanaHealth
nirvanaHealth: Provide healthcare automation and pharmacy benefit management software solutions.
4+ YOEBS in CS/Engineering required; 4+ years full‑stack C#/.Net experience; knowledge of Oracle, T‑SQL/PL‑SQL, MongoDB, HTML/CSS/JavaScript, Angular, Node.js, Telerik; Agile experience; SDLC/OOP proficiency.
.Net, C#, MVC, .Net Core, Web Services, Windows services, Oracle, Oracle 19c, T-SQL, PL/SQL, MongoDB, HTML, CSS, JavaScript, Angular, Node.js, Telerik, Kendo, SQL Server, MySQL
1mo
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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
3w
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Senior Full-Stack Software Engineer
Acton or Cranberry Township
OnsiteFull Time
Brady Corporation
Brady CorporationNYSE: BRC: Manufacturing industrial identification and workplace safety solutions.
5+ YOEBachelor's in CS or related,5+ years building software with C#, .NET, C++; experience with network protocols, hardware interfaces, APIs, and desktop UI development.
C#, .NET, C++, TCP/IP, UDP
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
2mo
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Software Development Engineer 3
Marlborough, Massachusetts, United States
$107k-$167k/yr OnsiteFull Time
Hologic
HologicNASDAQ: HOLX: Develops medical technology for women's healthcare and diagnostics.
10+ YOESenior software engineer with extensive experience (preferred 10+ years) in regulated, safety-critical environments; strong C++, C#, .NET, Python skills; experience with real-time OS, CI/CD, DevOps, Git tooling, automated testing, and Agile.
C++, C#, .NET, Python, QNX, RT Linux, Jenkins, SonarQube, Git, GitHub, Bitbucket, Jira, Azure DevOps, Confluence, Bash, PowerShell, Shell, Linux, GitHub Copilot, Cursor, Claude
2mo
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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
2w
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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