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Frontend Developer Jobs in Littleton, CO (NOW HIRING)

KORE1 Technologies

Principal Frontend Engineer

Denver, CO · On-site

$110K - $165K/yr

About the Role We're looking for a Principal Frontend Engineer to help build and shape the user-facing side of our products. You'll bring deep expertise in modern frontend development, a strong ...

Bentley Systems

Sr. Optimizely Developer

Arvada, CO · On-site +1

$117K - $154K/yr

Experimentation & Personalization (Frontend Execution) * * Complex Test Engineering: Code and deploy complex A/B, split, and multivariate tests within Optimizely Web Experimentation. Handle advanced ...

CACI

Front-end Software Developer

Denver, CO · On-site

$189K/yr

Job Title: Front-end Software Developer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required:

Horizontal Talent

Sr. Optimizely Developer

Denver, CO · Remote

$118K - $155K/yr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... Partner on server-side testing and feature flagging when frontend testing is not the best fit.

Loft Orbital Solutions

Frontend Engineer

Golden, CO · On-site

$140 - $190/hr

As a Frontend Engineer at Loft, you will work on a range of projects, including refining the UI of Cockpit, our satellite operations software, and empowering end-users with powerful satellite ...

Horizontal Talent

Senior CMS Developer Optimizely

Denver, CO · Remote

$118K - $155K/yr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... Partner on server-side testing and feature flagging when frontend testing is not the best fit.

Horizontal Talent

Senior Optimizely CMS Developer

Aurora, CO · Remote

$117K - $154K/yr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... Partner on server-side testing and feature flagging when frontend testing is not the best fit.

Horizontal Talent

Senior Optimizely CMS Developer

Golden, CO · Remote

$118K - $155K/yr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... Partner on server-side testing and feature flagging when frontend testing is not the best fit.

Horizontal Talent

Senior CMS Developer Optimizely

Aurora, CO · Remote

$117K - $154K/yr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... Partner on server-side testing and feature flagging when frontend testing is not the best fit.

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Showing results 21-40

All JobsFrontend Developer JobsFrontend Developer Jobs in Littleton, CO

Frontend Developer information

See Littleton, CO salary details

$42.6K

$110.6K

$155.8K

How much do frontend developer jobs pay per year?

As of Sep 3, 2026, the average yearly pay for frontend developer in Littleton, CO is $110,597.00, according to ZipRecruiter salary data. Most workers in this role earn between $104,200.00 and $121,200.00 per year, depending on experience, location, and employer.

What is a frontend developer?

Frontend Developers are professionals who design and build the user-facing parts of websites and web applications. They use technologies like HTML, CSS, and JavaScript to create interactive and visually appealing interfaces that users interact with directly in their browsers. Frontend Developers work closely with designers and backend developers to ensure a seamless and responsive user experience across different devices and platforms. Their role often includes optimizing website performance, ensuring accessibility, and maintaining code quality.

What are the key skills and qualifications needed to thrive as a frontend developer, and why are they important?

To thrive as a Frontend Developer, you need a solid grasp of HTML, CSS, JavaScript, and modern frameworks like React or Angular, often supported by a degree in computer science or a related field. Familiarity with version control systems (e.g., Git), responsive design tools, and web performance optimization techniques is typically required. Creativity, attention to detail, and strong problem-solving abilities help you build intuitive, user-friendly interfaces and collaborate effectively with design and backend teams. These skills and qualities are crucial for delivering high-quality, interactive web applications that meet user and business needs.

How do frontend developers collaborate with designers and backend teams during a project?

Frontend Developers regularly work closely with UX/UI designers to ensure that visual elements are accurately translated into interactive web pages and applications. They also coordinate with backend developers to integrate APIs and manage data flow between the server and the user interface. Regular meetings, code reviews, and collaborative tools like version control systems help streamline communication and maintain consistency across the project. This teamwork is essential to deliver a cohesive and high-performing end product.

What is the difference between Frontend Developer vs Web Designer?

AspectFrontend DeveloperWeb Designer
Primary FocusBuilding and coding website interfaces using HTML, CSS, JavaScriptDesigning visual layout, user experience, and aesthetics
Skills & CertificationsHTML, CSS, JavaScript, frameworks, coding skillsDesign tools (Photoshop, Sketch), UX/UI principles
Work EnvironmentCollaborates with developers and backend teams in tech settingsWorks with clients, marketing teams, and creative departments
Industry UsageWeb development companies, tech firms, startupsDesign agencies, marketing firms, freelance projects

While both roles contribute to website creation, a Frontend Developer focuses on coding and implementing interactive features, whereas a Web Designer emphasizes visual design and user experience. Understanding these differences helps in choosing the right career path or job search focus.

Are frontend developers still in demand?

Frontend developers are currently in high demand due to the ongoing growth of web applications and digital services. Skills in JavaScript, frameworks like React or Angular, and responsive design are particularly sought after by employers across various industries.

What exactly does a front-end developer do?

A front-end developer designs and implements the visual elements of websites and applications that users interact with, using languages like HTML, CSS, and JavaScript. They ensure the interface is responsive, accessible, and functions correctly across different devices and browsers, often collaborating with designers and back-end developers. Proficiency with development tools and frameworks is essential for building user-friendly digital experiences.

What are the most commonly searched types of Frontend Developer jobs in Littleton, CO?

The most popular types of Frontend Developer jobs in Littleton, CO are:

What are popular job titles related to Frontend Developer jobs in Littleton, CO?

For Frontend Developer jobs in Littleton, CO, the most frequently searched job titles are:

What job categories do people searching Frontend Developer jobs in Littleton, CO look for?

The top searched job categories for Frontend Developer jobs in Littleton, CO are:

What cities near Littleton, CO are hiring for Frontend Developer jobs?

Cities near Littleton, CO with the most Frontend Developer job openings:

Frontend Developer jobs near you
Infographic showing various Frontend Developer job openings in Littleton, CO as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% Remote job distribution, with an average salary of $111,433 per year, or $53.6 per hour.

Principal Frontend Engineer

KORE1 Technologies

Denver, CO • On-site

Contractor

Medical, Dental, Vision, Retirement, PTO

Re-posted 16 days ago

Job description


KORE1, a nationwide provider of staffing and recruiting solutions, has an immediate opening for a Principal Frontend Engineer based in Denver, Co. The role is Hybrid with 3 days onsite each week. 

About the Role
We're looking for a Principal Frontend Engineer to help build and shape the user-facing side of our products. You'll bring deep expertise in modern frontend development, a strong understanding of clean architecture, and a collaborative mindset.
In addition to writing high-quality code, you'll mentor other developers, help guide technical direction, and work closely with designers and stakeholders to deliver intuitive, polished interfaces. This is a hands-on position for someone with at least five years of experience who takes ownership of code quality and enjoys raising standards across the team.
Experience with Vue 3+ is preferred, but we're also interested in strong React or Angular engineers who are excited to transition to Vue. Experience in payments, foreign exchange, or another regulated industry is a plus.

What You'll Do
  • Build and maintain reliable, maintainable frontend applications using Vue 3+ and TypeScript.
  • Design scalable frontend solutions using clean architecture and coding practices.
  • Conduct thorough code reviews and uphold high standards for quality across the team.
  • Mentor other developers on architecture, best practices, and clean coding habits.
  • Build responsive and accessible interfaces using Tailwind CSS, HTML5, and CSS3.
  • Write and maintain unit and integration tests using Vitest.
  • Work with modern build tools and bundlers such as Vite.
  • Collaborate with designers to turn UX/UI concepts into intuitive and visually polished experiences.
  • Partner with engineers and stakeholders in an Agile/Scrum environment while contributing to the team's technical direction.
  • Use AI development tools such as Claude Code or GitHub Copilot to improve productivity.
  • Communicate clearly with both technical and non-technical stakeholders.

Required Qualifications
  • Five or more years of experience building production software.
  • Proficiency with Vue 3+, or strong experience with React or Angular and an interest in transitioning to Vue.
  • Strong TypeScript knowledge.
  • A demonstrated commitment to clean, maintainable code.
  • Strong knowledge of frontend architecture and object-oriented programming and design.
  • Experience conducting effective code reviews.
  • Experience mentoring developers on best practices and code quality.
  • Experience with modern Tailwind CSS.
  • Experience writing unit tests using Vitest or Jest.
  • Understanding of JavaScript build tools and module bundlers such as Vite, Rollup, or Webpack.
  • Strong knowledge of HTML5, CSS3, responsive web design, and accessibility principles.
  • Understanding of UX/UI design principles and the ability to collaborate closely with designers.
  • Familiarity with Agile/Scrum methodologies and cross-functional collaboration.
  • Experience with—or an open mindset toward—AI coding tools such as Claude Code and GitHub Copilot.
  • Strong written and verbal communication skills, including the ability to align engineers and stakeholders around a technical direction.

Preferred Qualifications
  • Experience with PostCSS, Sass, SCSS, or similar CSS technologies.
  • Knowledge of end-to-end testing frameworks such as Playwright.
  • Experience with Storybook for component-driven development and UI documentation.
  • Experience in payments, foreign exchange, or another regulated industry.

Perks and Benefits
  • Medical, dental, and vision insurance
  • 401(k) plan with company match
  • Employee stock purchase plan
  • Paid vacation and sick leave
  • Hybrid work schedule
  • Tuition assistance
  • Professional growth opportunities
  • Company gatherings and team-building events
  • Mental health and well-being support through Plumm
  • One paid volunteer day for a charity of your choice



Compensation depends on experience but is typically 110-165k DOE

ABOUT KORE1
Specializing in professional and technical recruiting, KORE1 is committed to supporting top IT, Engineering, Creative, Scientific, Accounting and Finance professionals in their career paths. We build deep relationships with leading companies, connecting them to exceptional talent every day. With extensive industry expertise and unmatched opportunities, our goal is to provide a unique experience for our contractors and consultants as they prepare for their next role. We are passionate about matching the right people with the right companies.

Kore1 provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability or genetics. In addition to federal law requirements, Kore1 complies with applicable state and local laws governing nondiscrimination in employment in every location in which the company has facilities. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training. Kore1 expressly prohibits any form of workplace harassment based on race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, or veteran status. Improper interference with the ability of Kore1's employees to perform their job duties may result in discipline up to and including discharge.
Education:Employment Type: CONTRACTOR

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