147 dotnet jobs at 77 companies in Longmont, CO
1w
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SCADA Migration & Integration Lead
Chicago or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or New York City or Cleveland or Oklahoma City or Austin or Albany or St. Petersburg or Hartford or Pittsburgh or St. Louis or Miami or Sacramento or Raleigh or Minneapolis or Mountain View or Scottsdale or Morristown or San Francisco or Denver or Boston or Philadelphia or Des Moines or Overland Park or Los Angeles or Charlotte or Seattle or Houston or Arlington or Atlanta or Redmond or Bentonville or Beaverton or Nashville or Detroit or San Diego
$87k-$266k/yr OnsiteFull Time
5+ YOERequires 5+ years of CygNet expertise, 2+ years integrating PI/AVEVA data and leading live cutovers, plus a bachelor's degree or equivalent experience. Ignition, Kafka, .NET, Python/Jython, SQL, and industrial security are valued.
CygNet, Ignition, REST, API, Kafka, .NET, AVEVA, Python, Jython, Wonderware, Galaxy, SQL, AutoSol, FlowCal, IEC 62443, NIST 800-82
1w
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Senior Software Engineer
Aurora, Colorado, United States
$110k-$164k/yr HybridFull Time
5+ YOEBachelor's degree and 5+ years related experience; strong skills in ASP.NET,C#,Node.js,React,Azure; experience with EMR not mentioned; on-call support and production troubleshooting experience.
ASP.NET, C#, Node.js, React, Azure, GitHub Copilot, Claude Code, Retrieval Augmented Generation (RAG)
4w
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Software Engineer II
Denver or Fort Collins or Boulder
$90k-$110k/yr HybridFull Time
3+ YOE3+ years software development with C#/.NET and Angular, Azure and SQL Server experience, CI/CD and DevOps familiarity, strong problem solving and communication; U.S. citizenship required.
.NET, Angular, C#, SQL Server, Microsoft Azure, Microsoft Azure App Services, Microsoft Azure Functions, Microsoft Azure SQL, Microsoft Azure Storage, Microsoft Azure Key Vault, GitHub, Azure DevOps, GitHub Actions, BICEP, Terraform, ARM templates, Docker, Kubernetes, ServiceNow, JavaScript, TypeScript, HTML, CSS, React, Vue
1mo
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C# Developer
Edmonton or Calgary or Toronto or Denver or Canada or India or United Kingdom or United States
OnsiteFull Time
Strong C#, .NET/ASP.NET Core, SQL, Azure and Cosmos DB experience; familiarity with Azure DevOps, Application Insights and Python; strong system design, problem solving and communication skills.
C#, .NET, ASP.NET Core, SQL, Python, Azure, Azure DevOps, Application Insights, Cosmos DB
1mo
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Senior Software Engineer
Denver, Colorado, United States
$130k-$150k/yr HybridFull Time
10+ YOE10+ years software development experience, 4+ years in senior roles. Strong .NET Core/.NET Framework, React/Angular, SQL Server, AWS, CI/CD experience; Bachelor's in STEM required; experience with AI coding tools preferred.
.NET Core, .NET Framework, React, Angular, SQL Server, AWS, CI/CD, Terraform, Datadog, GraphQL, ElasticSearch, Claude, GitHub Copilot, Cursor, Playwright, Model Context Protocols (MCP)
2mo
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Sr. Software Engineer
Hyderabad or Denver or United States or Canada or India
OnsiteFull Time
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
1mo
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Technical Adoption Specialist- Forma, APS, & Automation
California or Massachusetts or Boston or Novi or Atlanta or Denver or Portland
$76k-$137k/yr RemoteFull Time
5+ YOEBachelor's or equivalent, 5+ years experience in AEC or related automation, experience with Cloud APIs, Postman, HTTP/JSON, scripting, and strong communication and project management skills.
Postman, Autodesk Platform Services, VB, PowerShell, .NET, Python, C, C++, Workato, PowerAutomate, JSON, HTTP
1mo
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Lead Full Stack Engineer
Denver, Colorado, United States
$130k-$155k/yr OnsiteFull Time
10+ YOE10+ years full‑stack experience with C#/.NET, React.js, JavaScript/TypeScript, RESTful APIs, relational databases; experience with cloud platforms, CI/CD, security best practices, and technical leadership.
.NET, React.js, JavaScript, TypeScript, ASP.NET Core, Entity Framework, SQL Server, Postgres, Azure Service Fabric, Azure, AWS, GCP, Git, CI/CD, SAST, SCA, DAST
1w
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Software Development Manager
San Diego or Centennial or Omaha or Irvine or Los Angeles or Edison or Las Vegas
$110k-$140k/yr OnsiteFull Time
8+ YOE3+ MgmtBachelor's degree; 8+ years software engineering with 3+ years engineering leadership; deep .NET and distributed systems expertise; production support, incident management, and OutSystems experience preferred.
.NET, OutSystems, Redis, APIs
1mo
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Engineering Developer
Lone Tree, Colorado, United States
OnsiteFull Time
3+ YOE3+ years software development experience; strong C#/.NET and Windows desktop (WinForms); experience with 2D graphics, geospatial math, AI-assisted development, and aviation domain knowledge.
C#, .NET, WinForms, PHP, Swift, GDI+, SVG, SkiaSharp, Anthropic Claude, Claude Code, GitHub Copilot, Git, CI/CD, Ollama, llama.cpp, LM Studio
3mo
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Manager, Software Development
Denver, Colorado, United States
$140k-$190k/yr OnsiteFull Time
7+ YOE3+ MgmtBachelor's in Computer Science, 7+ years software development with 3+ years project lead experience; experience with .NET, SQL Server, Angular; knowledge of Azure and SharePoint preferred; project management and team leadership skills.
.NET, Microsoft SQL Server, Angular, Microsoft Azure, Microsoft SharePoint
2mo
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Senior C++/C# Software Engineer
Centennial, Colorado, United States
$100k-$140k/yr OnsiteFull Time
Bachelor's in computer science or related, strong experience with C++ or C#, familiarity with .NET and database design, problem solving and communication skills, interest in finance domain and legacy code maintenance.
Visual Studio Professional, .NET, C++, C#, Entity Framework, Microsoft SQL Server, MSTest, Moq, GitHub Copilot, Git, Azure DevOps, PowerShell
3w
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BIM Integration Developer - Kiewit Infrastructure Engineers
Omaha or Lone Tree
$92k-$111k/yr OnsiteFull Time
3+ YOE3+ years software development; bachelor’s in CS/SE/Engineering or equivalent; strong C#/.NET, REST API, React, SQL, Git, CI/CD; familiarity with BIM, ETL, and cloud platforms.
C#, .NET, RESTful APIs, React, JavaScript, TypeScript, SQL, Git, CI/CD, MongoDB, elasticsearch, IFC, Microsoft Azure, Copilot
1d
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Sr Applications Developer
Broomfield, Colorado, United States
HybridFull Time
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, REST APIs, and web technologies.
Microsoft .NET Framework, ASP.NET MVC, C#, Visual Studio, Microsoft SQL Server, RESTful services, Web API, JavaScript, TypeScript, jQuery, JSON, HTML, CSS, XML
1d
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Sr Applications Developer
Broomfield, Colorado, United States
HybridFull Time
3+ YOEBachelor's degree in computer science, information technology, or related field; 3-5 years of full-stack application development experience; proficiency in .NET, C#, ASP.NET MVC, SQL Server, web technologies, APIs, 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
3w
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Software Engineer
Chesterfield or Greenwood Village
$85k-$140k/yr HybridFull Time
2+ YOEBachelor's in CS or related, 2+ years software development experience, experience with C#/.NET, SQL Server, web fundamentals, Git, testing, and strong communication and problem-solving skills.
C#, .NET, SQL Server, HTML, CSS, JavaScript, Git, TypeScript, Angular, React, REST APIs, Azure DevOps, Azure, AWS, Application Insights, DataDog
1d
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Senior Software Engineer, Offers
Denver, Colorado, United States
$125k-$155k/yr HybridFull Time
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
1d
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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
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
2mo
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Sitecore Web Developer
Tacoma or Fort Lewis or Aurora or San Antonio or Falls Church
OnsiteFull Time
8+ YOEFull-stack secure web developer with Sitecore experience, HTML/CSS/JavaScript, modern front-end frameworks, ASP.NET/C#, SQL, Jira; 8+ years experience, Bachelors in IT/math or equivalent, active IAT II and CE certifications, U.S. citizenship and ability to obtain government clearance.
HTML, CSS, JavaScript, React, Angular, Vue, ASP.NET, C#, Sitecore, SQL, Jira, MVC5, PWAs
1mo
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Technology Engineer - JAVA/.NET/Security Code Review
Pittsburgh or Strongsville or Denver or Phoenix or Birmingham or Dallas or Cleveland or Lakewood
$86k-$158k/yr OnsiteFull Time
3+ YOE3+ years of software development experience, proficiency in Java and/or .NET, application security knowledge (OWASP Top 10), vulnerability triage/remediation, SDLC security, strong communication skills.
Java, .NET, OWASP Top 10, Interactive Application Security Testing (IAST)
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