Top 27 Ux/ui developer Jobs in Boulder, Co

Sr. Optimizely Developer
Horizontal Talent —Denver, CO
- Writing skills
- DevOps
- 3 years
Lead Full Stack Engineer
AIR Communities —Arvada, CO
- $130,000 - $155,000 a year
- Full-time
- Computer science
- Azure
- Computer Science
- Commuter assistance
- Paid parental leave
UI/UX Front End Engineer
Lynker Corporation —Boulder, CO
- $78,000 - $117,000 a year
- Full-time
- Remote
- Computer Science
- 5 years
- Bachelor's degree
- Paid holidays
- Disability insurance
UX/UI Designer
Revolar —Denver, CO
- Mid-level
- Experience equivalent to degree accepted
- 2 years
- Dental insurance
- Vision insurance
Quick Apply
Front End Engineer / UX Developer (FEE/UX)
Asynchrony Labs —Denver, CO
- 5 years
- Mid-level
- Office
Quick Apply
React Native Developer
JPLoft —Denver, CO
- Mid-level
- Office
- SQL
- Health insurance
Software Engineer, UI/UX
Lightship —Broomfield, CO
- $107,000 - $125,000 a year
- Full-time
- Computer Science
- System design
- Mid-level
- Paid parental leave
- Health insurance
Quick Apply
Full Stack Software Engineer
DomainTools —Denver, CO
- $125,000 - $165,000 a year
- Full-time
- Remote
- Computer Science
- Mid-level
- 3 years
Quick Apply
4d
Design Engineer - Americas
Ashby —Denver, CO
- $126,000 - $250,000 a year
- Full-time
- Mid-level
- Project management
- 2 years
- Paid parental leave
- Health insurance
Director, Design / UX - Healthcare / SaaS
Sycle LLC —Denver, CO
- $170,000 - $190,000 a year
- Hybrid work
- Computer science
- Computer Science
- HIPAA
- AD&D insurance
- Paid holidays
26-117: Fire Weather Testbed Cloud Developer
Colorado State University —Boulder, CO
- $110,000 - $120,000 a year
- Online Application
- Background check
- Computer science
- Computer Science
Sr Web UX-UI Manager
DAVITA —Denver, CO
- $85,000 - $135,000 a year
- Full-time
- 7 years
- HIPAA
- Office
- Health insurance
- Dental insurance
Software Developer
Current Tech —Lakewood, CO
- Email
- Computer science
- Computer Science
- Mid-level
Senior Mobile App Developer - Java/Kotlin Multiplatform
AION Robotics Corporation —Arvada, CO
- $100,000 - $250,000 a year
- Full-time
- Office
- AWS
- In-person
- Wellness program
- Health insurance
Salesforce Developer
CoreSite —Denver, CO
- $125,300 - $143,700 a year
- Weekends as needed
- Hybrid work
- Background check
- Computer science
- Computer Science
- Free parking
- Wellness program
Quick Apply
Backend C++ Josh System Developer
Josh.ai —Denver, CO
- $80,000 - $140,000 a year
- Email
- Computer science
- Computer Science
- Mid-level
- Free parking
- Paid holidays
Visual Design Manager
Accenture —Denver, CO
- $87,400 - $266,300 a year
- Full-time
- 7 years
- Bachelor's degree
- Product management
- Paid holidays
- Disability insurance
Senior Product Design Manager
Fivetran —Denver, CO
- $201,765 - $252,206 a year
- Hybrid work
- Research
- 8 years
- Continuous improvement
- Health insurance
- Paid time off
Quick Apply
Software Engineer II - Fullstack
CesiumAstro —Westminster, CO
- $113,000 - $136,000 a year
- Full-time
- Mid-level
- Travel
- 2 years
- Health savings account
- Health insurance
Staff Software Engineer - Fullstack
CesiumAstro —Westminster, CO
- $158,000 - $189,000 a year
- Full-time
- Azure
- System design
- 8 years
- Health savings account
- Health insurance

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ux/ui developer jobs near boulder, co

Sr. Optimizely Developer

Horizontal Talent -
Denver, CO

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Job Details

Qualifications

UI Testing
Marketing automation tools
MVC
Front-end component design
Performance optimization
Writing skills
DevOps
Content management systems
.NET Core
C#
Design of experiments
GitHub Actions
AI tools proficiency
Lead generation
Multivariate testing
Scalable systems
3 years
SASS/LESS
Salesforce Cloud
Collaboration with product development teams
Data caching
UX implementation
Solution architecture design
Continuous improvement
Azure DevOps proficiency
Customer relationship management (CRM) integration
ECMAScript
Scalability
Developing and maintaining backend systems
Web applications

Full 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.

Apply Now

Refine Your Search

ux/ui developer jobs in boulder, co

Sr. Optimizely Developer

Lead Full Stack Engineer

UI/UX Front End Engineer

UX/UI Designer

Front End Engineer / UX Developer (FEE/UX)

React Native Developer

Software Engineer, UI/UX

Full Stack Software Engineer

Design Engineer - Americas

Director, Design / UX - Healthcare / SaaS

26-117: Fire Weather Testbed Cloud Developer

Sr Web UX-UI Manager

Software Developer

Senior Mobile App Developer - Java/Kotlin Multiplatform

Salesforce Developer

Backend C++ Josh System Developer

Visual Design Manager

Senior Product Design Manager

Software Engineer II - Fullstack

Staff Software Engineer - Fullstack

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