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Sr Front End Developer Jobs in Colorado (NOW HIRING)

Leidos

Senior UI/UX Engineer

Englewood, CO · On-site

$128K - $160K/yr

Our Ideal Candidate We're looking for someone who is more than a front-end developer.You are passionate about how technology feels and functions for the person using it. You naturally ask, "Can we ...

AssemblyAI

Senior Design Engineer

Denver, CO · On-site

$180K - $240K/yr

About the role: We're looking for a Senior Design Engineer to own the craft and feel of AssemblyAI ... This person should have a strong design background paired with real frontend engineering ability ...

Infojini Inc

Sr. Web Developer

Denver, CO · On-site

We offer an excellent compensation package We are looking for Sr. Web Developer in Denver, CO for ... Experience in crafting user interfaces, front-end scalability and performance * Optional experience ...

HCL Global Systems Inc

Senior Java Developer

Denver, CO · On-site

$59 - $75.25/hr

HCL Global Systems Inc is seeking a highly skilled and experienced Senior Java Developer with a ... front-end features using Angular and modern web technologies, such as HTML5, CSS3, and JavaScript ...

tuffshed

Sr Software Developer

Center, CO · On-site

$47.75 - $63.25/hr

... Sr Software Developer. Are you passionate about cutting-edge tech and eager to make a real impact ... Building and improving user-friendly front-end interfaces using React. * Ensuring compatibility of ...

NAVA Software Solutions

Sr.Net Developer

Denver, CO · On-site

$56 - $74/hr

Details: Sr. Net Developer Location: Denver, CO - Onsite (Need someone Local or Nearby Only ... developers. * Front End Technologies/Concepts: HTML, CSS, Javascript, JQuery. * Back End ...

CloudBees

Senior Software Engineer

Denver, CO · On-site

$126K - $166K/yr

Senior Software Engineer Job Type: Full-time Location: Hybrid - Denver, CO (3 days on-site per week ... You will be part of an engineering team comprising front-end, back-end, and full-stack software ...

Tuff Shed

Sr Software Developer

Denver, CO · On-site

$110K - $150K/yr

... Sr Software Developer. Are you passionate about cutting-edge tech and eager to make a real impact ... Building and improving user-friendly front-end interfaces using React. * Ensuring compatibility of ...

CloudBees Inc

Senior Software Engineer

Denver, CO

$126K - $166K/yr

Senior Software Engineer Job Type: Full-time Location: Hybrid - Denver, CO (3 days on-site per week ... You will be part of an engineering team comprising front-end, back-end, and full-stack software ...

AssemblyAI

Senior Design Engineer

Denver, CO · On-site

About the role: We're looking for a Senior Design Engineer to own the craft and feel of AssemblyAI ... This person should have a strong design background paired with real frontend engineering ability ...

AssemblyAI

Senior Design Engineer

Denver, CO · On-site

About the role: We're looking for a Senior Design Engineer to own the craft and feel of AssemblyAI ... This person should have a strong design background paired with real frontend engineering ability ...

Kharon

Senior Software Engineer

Denver, CO · On-site

$160K - $200K/yr

Collaborate cross-functionally with product owners, frontend engineers, QA, and architects ... for a Senior Software Engineer to join us as we work to shape the way businesses perceive and ...

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Showing results 41-60

All JobsSr Front End Developer JobsSr Front End Developer Jobs in Colorado

Sr Front End Developer information

See Colorado salary details

$41K

$139.9K

$190.9K

How much do sr front end developer jobs pay per year?

As of Sep 2, 2026, the average yearly pay for sr front end developer in Colorado is $139,922.00, according to ZipRecruiter salary data. Most workers in this role earn between $120,900.00 and $158,800.00 per year, depending on experience, location, and employer.

What is a Sr Front End Developer?

Sr Front End Developers are experienced professionals who design, build, and optimize the user interface (UI) and user experience (UX) of web applications. They use technologies like HTML, CSS, and JavaScript frameworks (such as React, Angular, or Vue.js) to create responsive and interactive websites. In addition to coding, they often mentor junior developers, collaborate with designers and backend teams, and ensure that applications are accessible, performant, and visually appealing. Their role requires strong problem-solving skills and a deep understanding of web development best practices.

What are the key skills and qualifications needed to thrive as a Sr Front End Developer?

To thrive as a Sr Front End Developer, you need advanced proficiency in HTML, CSS, JavaScript, and modern front-end frameworks such as React or Angular, often supported by a relevant degree and several years of experience. Expertise in version control systems like Git, familiarity with build tools (Webpack, Babel), and knowledge of accessibility standards are typically required, with some roles preferring certifications in web development. Strong problem-solving abilities, collaboration, and effective communication set standout developers apart in team environments. These skills and qualities are crucial for creating high-quality, scalable user interfaces and ensuring seamless integration with back-end systems in dynamic projects.

What are some common challenges Sr Front End Developers face when working on large-scale projects?

Sr Front End Developers often encounter challenges such as maintaining code quality across large teams, ensuring consistent user experiences, and managing complex state in modern JavaScript applications. Keeping up with evolving front-end frameworks and integrating with backend systems can also be demanding. Collaboration with designers, backend engineers, and QA specialists is crucial to address these challenges, and effective communication skills help streamline the development process.

What are popular job titles related to Sr Front End Developer jobs in Colorado?

For Sr Front End Developer jobs in Colorado, the most frequently searched job titles are:

What job categories do people searching Sr Front End Developer jobs in Colorado look for?

The top searched job categories for Sr Front End Developer jobs in Colorado are:

What cities in Colorado are hiring for Sr Front End Developer jobs?

Cities in Colorado with the most Sr Front End Developer job openings:

Sr Front End Developer jobs near you
Infographic showing various Sr Front End Developer job openings in Colorado as of August 2026, with employment types broken down into 78% Full Time, 16% Part Time, 1% Temporary, and 5% Contract. Highlights an 89% Physical, 3% Hybrid, and 8% Remote job distribution, with an average salary of $139,922 per year, or $67.3 per hour.

Senior Back End Software Developer

System One

Colorado Springs, CO • On-site

$118K - $154K/yr

Other

Medical, Dental, Vision, Life, Retirement

Re-posted 3 days ago

Job description

Senior Back End Software Developer Location: Colorado Springs, Colorado Work Model: Onsite Clearance: Eligible – will be processed for Top Secret eventually If interested reach out directly to kimberly.spicer@systemone.com or text 301-252-8762 Responsibilities
  • Develop and maintain server-side logic by writing code that powers the application's functionality, handles user requests, and manages data.
  • Create APIs that allow different parts of the application, or different applications, to communicate with each other.
  • Design database schemas, write queries, and ensure data integrity and security.
  • Ensure the application can handle a growing number of users and data efficiently.
  • Work closely with front-end developers to integrate the back-end functionality with the user interface.
  • Implement security measures to protect sensitive data and prevent unauthorized access.
  • Participate in code reviews, debug developed code, and stay current with software development trends.
  • Ensure all changes or adaptations are thoroughly and meticulously reviewed, tested, and verified to eliminate application downtime or degradation.
  • Collaborate with cross-functional teams, develop reusable code components, and ensure application accessibility.
  • Actively participate in Integrated Product Teams (IPT’s) and other engineering working groups to review, assess, and mature engineering artifacts such as CONOPs, system architecture, system interfaces, data models, and ICDs.
  • Provide meeting coordination, technical expertise, and software development to assist customer decision-makers.
Requirements
  • B.S. in Computer Science, Computer Engineering, or equivalent STEM-based degree.
  • 7+ years of experience as a Back-End Software Application Developer with a portfolio, and proficiency in modern object-oriented programming languages such as Python, Java, C++, Node.js, or Ruby.
  • Experience with both SQL (e.g., MySQL, PostgreSQL) and NoSQL (e.g., MongoDB) databases.
  • Familiarity with back-end frameworks like Django, Flask, Spring, or Express.js.
  • Experience with cloud platforms like AWS, Azure, or Google Cloud.
  • Experience with efficient data storage and retrieval.
  • Strong, demonstrable understanding of modern design and coding principles and practices.
  • Familiarity with version control systems (e.g., Git).
  • Knowledge of software performance optimization.
  • Strong problem-solving skills.
  • Excellent communication and teamwork abilities.
  • Nice to have: Advanced degree in Computer Science or related field. Experience with testing frameworks. Knowledge of security practices. Active TS/SCI. Space domain experience.
System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law. #LI-KA1 #M1 Ref: #851-Rockville-S1

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About System One

Sourced by ZipRecruiter

System One helps employers get work done more efficiently and economically without compromising quality. Over our 35+ year history, we've helped connect thousands of talented people with innovative companies. The excitement of a perfect fit motivates us every single day.

Industry

Business consulting services and recruiting and staffing services

Company size

5,001 - 10,000 Employees

Headquarters location

Pittsburgh, PA, US

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