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Sr Dot Net Developer Jobs in Colorado (NOW HIRING)

Horizontal Talent

Senior .NET Developer Optimizely

Boulder, CO · Remote

$57.25 - $75.75/hr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... NET Core/MVC, especially in Optimizely CMS environments. * Advanced frontend experience with HTML5 ...

Horizontal Talent

Senior .NET Developer Optimizely

Arvada, CO · Remote

$55.25 - $73/hr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... NET Core/MVC, especially in Optimizely CMS environments. * Advanced frontend experience with HTML5 ...

Horizontal Talent

Senior .NET Developer Optimizely

Parker, CO · Remote

$56.25 - $74.25/hr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... NET Core/MVC, especially in Optimizely CMS environments. * Advanced frontend experience with HTML5 ...

Horizontal Talent

Senior .NET Developer Optimizely

Welby, CO · Remote

$56.25 - $74.25/hr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... NET Core/MVC, especially in Optimizely CMS environments. * Advanced frontend experience with HTML5 ...

Horizontal Talent

Senior .NET Developer Optimizely

Loveland, CO · Remote

$53.25 - $70.50/hr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... NET Core/MVC, especially in Optimizely CMS environments. * Advanced frontend experience with HTML5 ...

Horizontal Talent

Senior .NET Developer Optimizely

Aurora, CO · Remote

$55.75 - $73.75/hr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... NET Core/MVC, especially in Optimizely CMS environments. * Advanced frontend experience with HTML5 ...

Horizontal Talent

Senior .NET Developer Optimizely

Denver, CO · Remote

$55 - $72.75/hr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... NET Core/MVC, especially in Optimizely CMS environments. * Advanced frontend experience with HTML5 ...

Horizontal Talent

Senior .NET Developer Optimizely

Golden, CO · Remote

$56.25 - $74.25/hr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... NET Core/MVC, especially in Optimizely CMS environments. * Advanced frontend experience with HTML5 ...

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All JobsSr Dot Net Developer JobsSr Dot Net Developer Jobs in Colorado

Sr Dot Net Developer information

See Colorado salary details

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How much do sr dot net developer jobs pay per hour?

As of Sep 3, 2026, the average hourly pay for sr dot net developer in Colorado is $63.30, according to ZipRecruiter salary data. Most workers in this role earn between $55.62 and $70.77 per hour, depending on experience, location, and employer.

What is a Sr Dot Net developer?

Sr Dot Net Developers are experienced software engineers who specialize in designing, developing, and maintaining applications using Microsoft's .NET framework. They typically have several years of hands-on experience with .NET technologies such as C#, ASP.NET, and SQL Server. In addition to coding, they often lead development teams, establish coding standards, and ensure the overall quality and performance of software solutions. Their responsibilities may also include mentoring junior developers, participating in architectural decisions, and collaborating closely with other departments to deliver robust business applications.

What are the key skills and qualifications needed to thrive as a Sr Dot Net developer?

To thrive as a Sr Dot Net Developer, you need advanced proficiency in C#, ASP.NET, SQL, and a strong background in software development, typically backed by a degree in computer science or related field. Experience with tools like Visual Studio, Azure DevOps, and familiarity with frameworks such as .NET Core, along with relevant certifications like Microsoft Certified: .NET Developer, are highly valuable. Strong problem-solving abilities, effective communication, and leadership skills help in collaborating with teams and mentoring junior developers. These skills ensure the delivery of robust, scalable applications and drive project success in dynamic technical environments.

How does a Sr Dot Net developer typically collaborate with cross-functional teams during a project lifecycle?

As a Sr Dot Net Developer, you will often work closely with business analysts, UI/UX designers, project managers, and QA engineers throughout the software development lifecycle. Your role involves translating business requirements into technical solutions, participating in code reviews, and providing technical mentorship to junior developers. Effective communication and proactive problem-solving are key, as you'll be expected to contribute to architectural decisions and ensure smooth integration with other system components. Regular meetings, sprint planning sessions, and collaborative troubleshooting are common parts of the workflow.

What is the difference between Sr Dot Net Developer vs Dot Net Developer?

AspectSr Dot Net DeveloperDot Net Developer
ExperienceTypically 5+ yearsEntry to mid-level, 1-3 years
ResponsibilitiesDesign, lead projects, mentor juniorsDevelop applications, coding, testing
SkillsAdvanced coding, architecture, leadershipCore programming, basic architecture
CertificationsOften required or preferredOptional or early career

The main difference between a Sr Dot Net Developer and a Dot Net Developer lies in experience, responsibilities, and skill level. Senior developers lead projects and mentor others, while developers focus on coding and implementation. Both roles require strong knowledge of .NET technologies, but senior roles demand more leadership and architectural skills.

What are popular job titles related to Sr Dot Net Developer jobs in Colorado?

For Sr Dot Net Developer jobs in Colorado, the most frequently searched job titles are:

What job categories do people searching Sr Dot Net Developer jobs in Colorado look for?

The top searched job categories for Sr Dot Net Developer jobs in Colorado are:

Sr Dot Net Developer jobs near you
Infographic showing various Sr Dot Net Developer job openings in Colorado as of August 2026, with employment types broken down into 1% As Needed, 87% Full Time, 8% Part Time, 3% Contract, and 1% Nights. Highlights an 98% Physical, and 2% Remote job distribution, with an average salary of $131,670 per year, or $63.3 per hour.

Senior .NET Developer Optimizely

Horizontal Talent

Centennial, CO • Remote

$54.50 - $72/hr

Full-time

Posted 22 days ago

Job description

Join a fast-moving digital marketing team that is investing heavily in modern web technology, experimentation, and data-driven growth. This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS solutions, launching sophisticated experiments, and using AI-assisted tools to work faster and smarter.

Responsibilities
  • Build and maintain reusable components, page templates, and content models within Optimizely CMS to help marketing teams launch web pages efficiently.
  • Design CMS architecture that supports scalability, security, and strong performance, including Core Web Vitals optimization.
  • Develop and support integrations between Optimizely CMS and enterprise platforms such as Salesforce, Marketo, Adobe Commerce, and internal systems.
  • Create and deploy advanced A/B, split, and multivariate tests in Optimizely Web Experimentation, including custom DOM manipulation and dynamic content changes.
  • Implement personalized web experiences for targeted B2B audiences and account-based marketing campaigns.
  • Partner on server-side testing and feature flagging when frontend testing is not the best fit.
  • Perform thorough cross-browser and cross-device testing to help ensure smooth, consistent user experiences with minimal flicker or layout shift.
  • Define and document best practices, technical standards, and governance guidelines for Optimizely-related work.
  • Collaborate closely with CRO, product, and design teams to evaluate ideas, prototype solutions, and translate designs into polished digital experiences.
  • Use AI-assisted development tools to accelerate coding, debugging, testing, and experimentation workflows.
Skills
  • 5+ years of full-stack web development experience.
  • At least 3+ years of hands-on experience working within the Optimizely ecosystem.
  • Strong backend development skills with C# and .NET Core/MVC, especially in Optimizely CMS environments.
  • Advanced frontend experience with HTML5, CSS3/SASS, and JavaScript, including Vanilla JS, ES6+, jQuery, React, or Vue.
  • Deep understanding of Optimizely platform concepts such as Project JS, visual tags, audience targeting, anti-flicker approaches, and caching behavior.
  • Experience building for complex B2B websites, including lead generation and gated content workflows.
  • Strong Git knowledge and familiarity with modern CI/CD workflows such as Azure DevOps or GitHub Actions.
  • Ability to work independently while also partnering effectively with cross-functional teams.
  • A proactive, solution-oriented mindset with a focus on speed, quality, and continuous improvement.
Preferred Skills
  • Active Optimizely Developer certification in CMS or Web Experimentation.
  • Experience supporting server-side experimentation and feature flagging initiatives.
  • Familiarity with UX/UI collaboration and translating wireframes or Figma designs into interactive experiences.
  • Comfort using AI tools such as GitHub Copilot or ChatGPT to support development efficiency.
  • Experience working in remote-first environments and collaborating across multiple locations.

Horizontal is committed to fostering an inclusive environment where all qualified candidates can thrive. We value diversity, equity, and inclusion as essential to building strong teams, better ideas, and better outcomes.

By applying for this position, you acknowledge and agree that Horizontal Talent may contact you regarding your application using automated technology, including phone calls, SMS/text messages, or email, which may be delivered by our virtual AI recruiter, Alex.

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