20 dotnet full stack developer jobs at 15 companies in Lyons, CO
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Full-Stack Developer
Broomfield, Colorado, United States
HybridFull Time
4+ YOEBachelor's in Computer Science or related, 4+ years full-stack development, proficiency with .NET, C#, ASP.NET MVC, REST/APIs, JavaScript/TypeScript, and Microsoft SQL Server.
.NET, .NET Framework, ASP.NET, MVC, C#, Microsoft Visual Studio, Microsoft SQL Server, XML, JSON, TypeScript, JavaScript, jQuery, HTML, CSS, REST, Web API
1mo
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Full Stack Developer
Wheat Ridge, Colorado, United States
OnsiteFull Time
Experience building full-stack web and mobile apps using C#/.NET, JavaScript, React Native, HTML/CSS, SQL and Git/GitHub; strong communication, documentation, and collaborative skills.
C#/.NET, JavaScript, HTML, CSS, SQL, React Native, Git, GitHub, Unity
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
2w
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Senior Full-Stack Lead Developer
Broomfield, Colorado, United States
$89k-$125k/yr HybridFull Time
5+ YOE5+ years C# application development, Web API and Agile experience; SQL Server, HTML/CSS/JavaScript; experience leading developers, BS/MS in CS or related field; strong communication and leadership.
C#, .NET, Web API, Angular, WPF, Microsoft SQL Server, HTML, CSS, JavaScript, Git
1mo
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Software Engineer Full Stack (Pricing Engine)
Denver or United States or United Kingdom or Canada or Australia or New Zealand
$83k-$125k/yr HybridFull Time
3+ YOE3+ years building production web applications; strong frontend with Vue.js or React; backend proficiency in C#/.NET (or Java, Kotlin, Go); SQL and AWS (SQS, DynamoDB, S3, ECS, Lambda); testing, AI coding tools, and strong system design and communication.
Vue.js, React, C#, .NET, Java, Kotlin, Go, SQL, AWS, SQS, DynamoDB, S3, ECS, Lambda, Copilot, Cursor, Claude Code, Memcached, Redis, Jira, Confluence, Postman, Bruno, CI/CD
1w
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Sr. Optimizely Developer
Boston or Denver
HybridFull Time
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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Junior Software Engineer
Englewood or Denver
$75k-$85k/yr OnsiteFull Time
2+ YOERequires 2-4 years of software engineering, Azure cloud development, full-stack development, containers, RESTful APIs, modern programming languages, CI/CD, security, Agile/Scrum, and Azure services experience.
Azure, Kubernetes, Azure Kubernetes Service, React, Angular, .NET Core, Node.js, C#, TypeScript, Git, Azure DevOps, Cosmos DB, Microsoft SQL Server, Azure SQL Database, Web Apps, API Apps, Logic Apps
3w
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Software Developer Technical Lead
Centennial, Colorado, United States
$100k-$120k/yr OnsiteFull Time
5+ YOE1+ MgmtBachelor's in CS or related,5+ years full-stack .NET development,1+ year leading technical resources,experience with Angular/React,REST/SOAP,APIs,Agile,strong OOP and communication skills.
.NET framework, C#, Java, JavaScript, MVC, Angular 10, React, TypeScript, jQuery, SQL Server, RabbitMQ, Swagger Docs, REST, SOAP, AWS
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Senior Software Engineer, Verifications
Denver, Colorado, United States
$125k-$155k/yr HybridFull Time
Proven developer with experience in backend and full-stack systems, leadership/mentoring, cloud platforms, and strong problem-solving; knowledge of React, Typescript, Golang, Kafka, SQL and .Net technologies.
Golang, React, Kafka, SQL, .Net, Typescript, C#, MSSQL, WPF, Cloud Platforms
3d
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Senior Software Engineer
Denver, Colorado, United States
$145k-$165k/yr HybridFull Time
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
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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Forward Deployed Engineer
Chicago or Denver or Houston or Minneapolis or New York City
$116k-$223k/yr OnsiteFull Time
7+ YOE7+ years consulting or related experience; strong Snowflake architecture, SQL, data modeling, ELT/ETL, dbt, full-stack development (Python, JavaScript/TypeScript), API/integration experience, client advisory and team leadership.
Snowflake, Snowpark, dbt, Fivetran, Boomi, MuleSoft, Workato, Matillion, Apache Airflow, Sigma, Microsoft Power BI, Tableau, Looker, Omni, JavaScript, TypeScript, React, Next.js, Node.js, Python, FastAPI, Flask, .NET, Java, SQL, Git, CI/CD, Streamlit, Cortex, Apache Iceberg, Microsoft Fabric, REST, JSON, OAuth, ELT, ETL, iPaaS
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
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
1mo
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Software Engineer I - Ground Software
Greenwood Village or Austin or Laurel
$70k-$125k/yr HybridFull Time
0+ YOEEarly‑career full‑stack engineer; 0–1 years experience; bachelor's (or pursuing) in CS or related; foundational React/Angular knowledge; familiarity with TypeScript, C#, REST, Git, SQL, front-end tools; ability to obtain security clearance.
React, TypeScript, C#, .NET, Docker, Kafka, REST, Yarn, Babel, Material-UI, Git, SQL, TanStack Query
1w
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Senior Software Engineer (.NET)
Aurora, Colorado, United States
$135k-$140k/yr OnsiteFull Time
4+ YOE4+ years relevant experience with .NET/C#/MVC/JavaScript/SSIS/T-SQL; full-stack web development, Agile experience, strong SQL and UI skills; Master's or Bachelor's degree alternatives noted.
.NET, C#, MVC, JavaScript, SSIS, T-SQL, JQuery, HTML, CSS, SQL, Web Services
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