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76 sr net developer jobs at 52 companies in Castle Rock, CO

2d
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Sr .Net Developer
Colorado or Colorado Springs or Washington or Virginia or Maryland or Washington
OnsiteFull Time
Blue Rose Consulting Group
Blue Rose Consulting Group: Provides IT and management consulting services to government agencies.
5+ YOEU.S. citizenship, active final DoD Secret clearance, and 5+ years supporting complex technical projects. Requires .NET Framework, C#, Entity Framework, SQL Server, data integration, analysis, reporting, and UI development.
.NET Framework, C#, Entity Framework, SQL Server, CI/CD, SAFe Agile
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1mo
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Dot Net Developer with F# exp
Denver, Colorado, United States
$95k-$120k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
8+ YOE.NET and F# experience, 8+ years software development, SQL Server and Entity Framework knowledge, Git and unit testing experience, Agile SDLC familiarity, bachelor in computer science preferred.
.NET, F#, SQL Server, Entity Framework, Git
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2mo
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Senior C#/.Net Developer
Lone Tree, Colorado, United States
$150k-$170k/yr OnsiteFull Time
Charles Schwab
Charles SchwabNYSE: SCHW: Financial services, brokerage, and investment management provider.
7+ YOE7+ years in software development with .NET, C#, DDD, REST APIs, SQL Server, CI/CD, and leadership.
.NET, C#, ASP.NET, REST API, SQL Server, GitHub, CI/CD, IIS, Windows Services, DDD, SOLID, Unit Testing, Integration Testing
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2mo
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Sr. Principal Cyber Software Engineer
Annapolis Junction or San Antonio or Aurora or Carey
$149k-$235k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
8+ YOEBachelor's degree in computer science, information systems, or network engineering with 8+ years experience; strong C/C++, Java, Python; CNO tools; Windows/.NET and Unix/Linux development.
C, C++, Java, Perl, Python, Visual Studio, NET, Unix/Linux, Makefiles
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1w
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Senior Software Engineer - .NET (Full Stack)
Cincinnati or Denver
$114k-$172k/yr HybridFull Time
Global Payments
Global PaymentsNYSE: GPN: Provides payment technology and software solutions for businesses.
8+ YOEBachelor's degree or equivalent experience; 8+ years software development, 6+ years C#; expertise in .NET, ASP.NET, frontend frameworks, APIs, databases, DevOps, testing, and security tools.
C#, ASP.NET Core, .NET, SQL Server, JavaScript, TypeScript, HTML5, CSS3, Vue.js, React, Angular, RESTful APIs, Entity Framework, LINQ, Git, CI/CD, DevOps, Snyk, Checkmarx, BlackDuck, .NET Framework, ASP.NET MVC, ASP.NET Web API, .NET Core, .NET 8+
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11h
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Senior Software Engineer (Modern .NET)
Denver or Kansas City or Chicago or Cincinnati or St. Louis or Florida or Iowa or Nebraska or Tennessee
$120k-$160k/yr RemoteFull Time
Computer Information Concepts
Computer Information Concepts: Software for K-12 schools and local government administration.
6+ YOERequires 6+ years of software engineering experience, C#/.NET and ASP.NET Core, REST APIs, relational databases, SQL Server, EF Core, testing, cloud deployment, CI/CD, and Git workflows.
C#, .NET, ASP.NET Core, EF Core, SQL Server, Azure, React, TypeScript, REST APIs, CI/CD, Git, Angular, Vue, Figma, Terraform, Bicep, Culture Index, Microsoft Windows
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2w
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Sr. Optimizely Developer
Boston or Denver
HybridFull Time
Bentley Systems
Bentley SystemsNASDAQ: BSY: Software for designing, building, and operating global infrastructure.
5+ YOE5+ years full-stack web development with 3+ years in Optimizely; deep C#/.NET Core/MVC backend and advanced HTML5/CSS3/JS frontend skills; experience with experimentation, personalization, and CI/CD.
Optimizely CMS, Optimizely Web Experimentation, Optimizely Feature Experimentation, C#, .NET Core, MVC, HTML5, CSS3, SASS, JavaScript, ES6+, jQuery, React, Vue, Project JS, Figma, Git, Azure DevOps, GitHub Actions, GitHub Copilot, ChatGPT, Salesforce, Marketo, Adobe Commerce
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2mo
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Sr. Software Engineer - Ignition
Denver, Colorado, United States
HybridFull Time
KPMG
KPMG: Global professional services network providing audit, tax, and advisory.
3+ YOEMinimum 3 years software development experience; familiarity with microservices, RESTful APIs, auth, Python/.NET/C#/Angular, SQL, Microsoft Azure, LLM/AI integration; bachelor's preferred, master's desired.
Angular, TypeScript, Python, .NET, C#, T-SQL, SQL, Microsoft Azure, Microsoft Azure App Services, Microsoft Azure Functions, Microsoft Azure SQL Database, Microsoft Azure DevOps, Microsoft Azure OpenAI, PyTorch, TensorFlow, scikit-learn
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1d
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Sr Applications Developer
Broomfield, Colorado, United States
HybridFull Time
Sonepar
Sonepar: Global distributor of electrical products and B2B solutions.
3+ YOEBachelor's degree in computer science, information technology, or related field; 3–5 years of full-stack development experience with .NET, ASP.NET MVC, C#, SQL Server, APIs, web technologies, and integrations.
Microsoft .NET Framework, ASP.NET MVC, C#, Visual Studio, Microsoft SQL Server, RESTful services, Web API, JavaScript, TypeScript, jQuery, JSON, HTML, CSS, XML
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2mo
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Sr. Software Engineer
Hyderabad or Denver or United States or Canada or India
OnsiteFull Time
Vertafore
VertaforeNYSE: ROP: Provides cloud-based software solutions for the insurance industry.
3.5+ YOE3.5+ years experience with Microsoft SQL Server, SSIS, and T-SQL; 1–2 years .NET/ASP.NET; exposure to GitHub Copilot/AI tools; experience with C#, JavaScript, React, Microsoft Visual Studio and basic AWS/EC2; proficiency in Agile/Scrum.
T-SQL, MySQL, SSIS, SSRS, Claude, GitLab, GitHub Copilot, C#, ASP.NET, JavaScript, React, Microsoft Visual Studio, AWS, EC2, Microsoft SQL Server
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2mo
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Software Engineer III
Greenwood Village or Denver
$130k-$150k/yr HybridFull Time
MiTek
MiTekNYSE: BRK-B: Provides software and automation for the building industry.
5+ YOEBachelor's in computer science or related field, 5+ years professional software development, professional experience with C# and .NET, desktop application development, strong debugging and OOP skills.
C#, .NET, C++, Azure DevOps
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2mo
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Algorithms Developer
Colorado Springs, Colorado, United States
$95k-$130k/yr OnsiteFull Time
Delta Solutions & Strategies
Delta Solutions & Strategies: Provides technical consulting and engineering services to the military.
5+ YOEBachelor's in physics/engineering/applied mathematics required (Masters preferred), 5+ years software development, advanced math/physics knowledge, experience with C#/.NET, Java or C++, DoD experience preferred, ability to obtain Top Secret clearance.
C#, .NET, Java, C++, Microsoft Windows
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10h
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Senior Software Engineer, Offers
Denver, Colorado, United States
$125k-$155k/yr HybridFull Time
bet365
bet365: Provides global online sports betting and digital casino games.
Experience leading development teams and technical projects; coaching developers; cloud platform experience; React and TypeScript; Golang microservices; exposure to C#, .NET, MSSQL, or WPF.
Go, TypeScript, React, SQL, Kafka, Google Cloud Platform, C#, .NET, MSSQL, WPF
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1mo
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Lead Power Platform Developer
Denver, Colorado, United States
$90k-$190k/yr HybridFull Time
CapTech
CapTech: Provides technology and management consulting services to large enterprises.
10+ YOE10+ years Microsoft Dynamics 365 and Power Platform experience, hands-on development in Java/Python/.NET, Dynamics 365 certification preferred, bachelor's degree, strong communication and project leadership skills.
Microsoft Dynamics 365, Microsoft Power Platform, CCaaS, Omnichannel, Java, Python, .NET, Salesforce
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1d
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Senior Software Engineer
Denver, Colorado, United States
$115k-$140k/yr HybridFull Time
Medical Group Management Association
Medical Group Management Association: Supporting medical practice leaders with data, education, and advocacy.
5+ YOEBachelor's degree in a related field or equivalent experience; 5+ years software development, 3+ years C# and Microsoft SQL Server; experience with .NET, web frameworks, testing, architecture, and source control.
C#, .NET, Microsoft Visual Studio, ASP.NET, WCF, ADO.NET, Entity Framework, MS SQL, HTML5, CSS, JavaScript, Blazor, React, Vue, Angular, MVC, Web API, ODATA, NUnit, MSTest, Microsoft SQL Server, OWASP
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3d
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Lead Software Engineer - Murex
Philadelphia or Denver or Cedar Rapids
$111k-$135k/yr HybridFull Time
Transamerica
TransamericaNYSE: AEG: Provides insurance, retirement solutions, and investment products to customers.
5+ YOEBachelor's degree or equivalent experience; 5+ years of software engineering; Murex development; Java, .NET/C#, SQL, integrations, ETL, reporting, troubleshooting, and derivatives lifecycle knowledge.
Murex, MxML, SQL Server, Oracle, SSIS, AWS Glue, SSRS, Microsoft Excel, Visual Studio, Git, Bitbucket, Maven, Jenkins, Nexus, SQL Management Studio, NUnit, Docker, OpenShift, Kubernetes, Java, .NET, C#, Python, Swagger, OpenAPI, Kafka, REST APIs, Spring Framework, J2EE, Control-M, Kiro, Microsoft Windows Server, Linux, Unix, Excel VBA
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1w
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Senior Software Engineer
Denver, Colorado, United States
$145k-$165k/yr HybridFull Time
Litera
Litera: AI-powered document and workflow software for legal professionals.
5+ YOEBachelor's degree or equivalent practical experience; 5–7+ years developing production-scale SaaS applications, full-stack systems, APIs, and cloud solutions using Node.js, React, .NET/C#, and TypeScript.
Node.js, React, .NET, C#, TypeScript, AI, GenAI, CI/CD, DevOps
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1w
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Senior Software Architect - .Net/Python
Dallas or Pittsburgh or Birmingham or Strongsville or Denver or Phoenix or Dallas or Strongsville or Denver or Phoenix or Pittsburgh or Birmingham
$112k-$229k/yr OnsiteFull Time
PNC Financial Services
PNC Financial ServicesNYSE: PNC: Provides banking, lending, and investment services to customers.
10+ YOEBachelor's degree or equivalent experience and 10+ years in software engineering, solution, or enterprise architecture, with .NET, distributed systems, microservices, cloud, and AI expertise.
.NET, Python, Docker, Kubernetes, OpenShift, Kafka, OpenAPI, Swagger, Angular, Git, Jira, Azure DevOps, Microsoft Agent Framework, Semantic Kernel, LangChain, AutoGen, CrewAI, Azure AI Foundry, OpenAI, Anthropic, AWS Bedrock, Google Vertex AI, TensorFlow, PyTorch, Scikit-learn, Microsoft Excel
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1mo
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Cloud Architect & Full Stack Developer
Denver, Colorado, United States
$143k-$214k/yr OnsiteFull Time
Johns Manville
Johns Manville: Manufactures high-performance insulation, roofing systems, and engineered fibers.
10+ YOEBachelor's degree in CS/Engineering, 10+ years application development with SAP manufacturing systems, expertise in SAP MII, .NET, Azure, Microsoft Fabric, data architecture, and applying ML/AI in manufacturing.
SAP MII, SAP, .NET, SQL, Azure, Microsoft Fabric, REST, SOAP, C++, C#, JavaScript, HTML5, jQuery, XML, ML/AI
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1mo
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Lead System Engineer
Orlando or Tampa or Lakeland or Melbourne or Daytona Beach or Las Vegas or Denver or Houston
$70-$75/hr RemoteFull Time, Contract
CAI
CAI: Provides global IT services and contingent workforce management solutions.
7+ YOE2+ Mgmt7+ years full‑stack development, 2+ years lead experience; hands‑on with Oracle/PL‑SQL, APIs/integrations, Microsoft Azure (.NET), Angular, Python; DevOps/CI/CD; experience with AI tools; strong client communication; must have work authorization not requiring sponsorship.
Oracle, PL/SQL, APIs, Microsoft Azure, .NET, Angular, Python, GitHub Copilot, Azure OpenAI, TestGPT, Docker, Kubernetes, CI/CD
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