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Web Application Developer Jobs in Denver, CO (NOW HIRING)

Work with modern web application frameworks such as React, Angular, Svelte, or Vue to build ... Bachelor's degree in computer science, engineering, mathematics, GIS, or related field * Ability to ...

Application Developer

Denver, CO · On-site

$93.50 - $110/hr

Application Developer We are looking for a skilled developer to support both our Salesforce ... Build and support front-end and back-end web applications * Integrate systems and services via APIs

Work with modern web application frameworks such as React, Angular, Svelte, or Vue to build ... Bachelor's degree in computer science, engineering, mathematics, GIS, or related field * Ability to ...

Application Developer

Denver, CO · On-site

$60 - $70/hr

NET Web Forms over to .NET 8 / 9 project with a React front-end. Location: Denver, CO (100% onsite ... LINQ * Azure DevOps with GIT / TFSC or equivalent * Console Application Executables * Window ...

Application Developer Location: Remote / As specified Job Type: Contract / Part-Time ... Develop and enhance web applications using HTML, CSS, JavaScript , and related technologies.

We offer an excellent compensation package We are looking for Sr. Web Developer in Denver, CO for ... Optional experience in working web application development using Visual studio 2013/2015 * Optional ...

... web services, and batch processing. No prior experience using the Qualtrics platform is necessary. We're looking for a hands-on lead, or even a senior engineer that has experience overseeing ...

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Web Application Developer information

See Denver, CO salary details

$22.6K

$101.4K

$157.5K

How much do web application developer jobs pay per year?

As of Aug 24, 2026, the average yearly pay for web application developer in Denver, CO is $101,398.00, according to ZipRecruiter salary data. Most workers in this role earn between $81,300.00 and $123,000.00 per year, depending on experience, location, and employer.

What is a web application developer?

Web Application Developers are professionals who design, build, and maintain web-based software applications. They use programming languages like JavaScript, HTML, CSS, and frameworks such as React, Angular, or Django to create interactive and functional websites or web apps. Their role involves working closely with clients and other developers to ensure the application meets user requirements, is secure, and performs well. Web Application Developers may also be responsible for testing, debugging, and deploying applications, as well as maintaining and updating them over time.

What are some common challenges web application developers face when working on large-scale projects?

Web Application Developers working on large-scale projects often encounter challenges such as coordinating with cross-functional teams, managing complex codebases, and ensuring application scalability and security. Balancing feature development with maintaining code quality and documentation is essential, as is adapting to changing requirements from stakeholders. Effective communication and the ability to troubleshoot issues quickly are key for success in this dynamic environment.

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

To thrive as a Web Application Developer, you need strong proficiency in programming languages such as JavaScript, HTML, CSS, and frameworks like React or Angular, often supported by a degree in computer science or related experience. Experience with version control systems (e.g., Git), databases (SQL/NoSQL), and familiarity with deployment tools and cloud services are also typical requirements. Problem-solving skills, attention to detail, and effective communication help set top developers apart in collaborative environments. These skills and qualities are essential for building robust, user-friendly web applications that meet business goals and adapt to evolving technology.

What is the difference between Web Application Developer vs Front-End Developer?

AspectWeb Application DeveloperFront-End Developer
Primary FocusDevelops full web applications, including backend and frontend componentsDesigns and implements the user interface and user experience
Skills & CertificationsJavaScript, HTML, CSS, backend languages (e.g., Python, Java), database knowledgeHTML, CSS, JavaScript, frameworks like React or Angular
Work EnvironmentCollaborates with backend and frontend teams, often in full-stack rolesPrimarily works on UI/UX, often in front-end teams
Industry UsageCommon in full-stack development projects across industriesFocused on client-side development in web projects

The main difference is that Web Application Developers handle both backend and frontend development to build complete web applications, while Front-End Developers focus specifically on creating the visual and interactive aspects of websites. Both roles require similar skills but differ in scope and responsibilities.

Is web application developer still in demand?

Web application developers are in high demand due to the ongoing growth of online services and digital platforms. Skills in programming languages like JavaScript, Python, and frameworks such as React or Angular, along with knowledge of cloud services, enhance employability in this field.
Infographic showing various Web Application Developer job openings in Denver, CO as of August 2026, with employment types broken down into 76% Full Time, 18% Part Time, and 6% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $101,398 per year, or $48.7 per hour.

Full Stack Web Application Developer

Wheat Ridge, CO • On-site

Full-time

Medical, Dental, Retirement, PTO

Re-posted 15 days ago


Job description

Company Description
In 2002, Aspen Systems, Inc. manufactured a high-performance computational cluster that was named as the world's eighth fastest supercomputer. From 2003 through 2006, Aspen Systems, Inc. was ranked on Deloitte & Touché Technology Fast 50 Program for Colorado; a prestigious list of the fifty fastest growing technology companies in the area. Colorado Biz Magazine listed Aspen Systems, Inc. among its Top 250 companies in Colorado over four consecutive years (2003-2006). Aspen Systems, Inc. is a certified audited vendor for Lockheed Martin and was honored to hold the esteemed Lockheed Martin Star Supplier award in 2008; an accolade granted only to the top 0.1% of LMCO suppliers. Aspen Systems, Inc. is an ISO9001: 2008 certified company and manufactures in our own fully compliant ANSI/ESD S20.20 facility. This is non-smoking environment for our employees.
At Aspen Systems our success is attributed to the people we hire. We constantly seek individuals with the skills, talent, vision and creativity to go beyond a simple job description, Do you think way outside the box? We are a group of talented professionals who enjoy our work and are driven to succeed. Come join us on our rapidly growing and very successful journey. We are growing fast, the excitements, challenges and opportunities are very real and we are having fun at being the very best. Our team is one that is talented, driven, and dedicated to what we do. We want to grow our enterprise to the 100 million dollar level and beyond. We are seeking dedicated, talented, and driven candidates who can help us to achieve that vision. Our culture is one of inclusion, dedication, and our team is diverse. This is a fantastic group of individuals who work together for the common goal of success. Our field in High Performance Computing and clientele is tip of the spear in scientific and research computing that is world renown. This is an exciting place to be that is second to none. Would you like to be part of a web team that builds one of the most advanced High Performance Computing e-commerce site in the industry? Are you up to the challenge? Do you aspire to be a part of this incredible opportunity?
As an Equal Opportunity Employer, we encourage diversity in our workplace. Aspen Systems also offers a competitive benefits package including medical, dental, and generous holidays and paid vacation.
Job Description
Responsibilities Include:
  • Maintaining and improving our growing E-Commerce site.
  • Maintaining and improving our custom internal applications.
  • Working with product managers on adding new products to our E-Commerce site.
  • Involved in full life cycle development process.
  • Gather requirements, coding and development, support and maintenance.
  • Working with our in-house engineering team.
  • Interact well with company leaders and marketing team in order to accomplish business goals.
  • Suggest innovative solutions to business problems/processes that leverage technology to provide marketing differentiation, performance improvements, and better user experiences.
  • And you know it! Other duties as assigned.
  • Contribute to and improve team and company processes.

Qualifications
Must have 2 years experience with:
  • HTML/CSS/JavaScript
  • Classic ASP/VB Script
  • C#, ASP.NET, MVC
  • GIT
  • MySQL/MSSQL
  • jQuery
  • Angular JS
  • PHP
  • WordPress CMS
  • Product Cart

Must Have Some/Nice to Have/Willing to Learn
  • Think-ability
  • SharePoint online
  • Epicor
  • Microsoft CMS
  • Browser Compatibility Validation
  • Markup Validation
  • Ability to write and debug code without an IDE
  • Strong knowledge of Linux server environments
  • Significant independent web development experience
  • Advanced knowledge of Social Media and E-Commerce sites and functionality
  • Substantial API experience - Google, Bing, Shopping Feeds, Amazon, etc.
  • SASS
  • Visual Studio
  • Photoshop/Illustrator

The perfect candidate would further describe their skills as follows:
  • Professional communication skills, both written and verbal
  • Strong execution of Project Management responsibilities
  • Possesses an on-line portfolio demonstrating elegant and clean design/styles
  • Strong problem solving skills
  • Intuitive and self-managed independent team worker

Additional Information
What we offer:
We offer a competitive benefits package including Medical and Dental coverage, Generous Holidays, Annual Bonuses, 401K and Paid Vacation, Great Food, we run back door BBQs whenever we get a chance. This is a full time position.
US Citizens and those authorized to work in the US are encouraged to apply. We are unable to sponsor visas at this time.We are a smoke/vape/drug free work environment. You must be able to pass a drug screen. We're an equal opportunity employer. No employee or applicant will be discriminated against in any condition of employment because of race, color, national origin, sex, religion, age, disability, veteran status or any other status protected by law.
We are looking to fill this great opportunity immediately, we have a world-class, professional, and incredibly talented team. We are a great place to work and play. Imagine biking, hiking, and ski slopes just beyond our front door. We're a "bring your dog" friendly office. We have big ideas, and we are some of the best and brightest in HPC.
If you are qualified and interested in this role, please provide us with the following information:
1. Your most current resume.
2. Your complete salary history.
3. Your answers to the following ten questions, providing us with as detailed answers as possible:
a. What are the top three things that motivate you?
b. What are your two greatest accomplishments in life?
c. What would you consider to be your most impeding weakness?
d. What is the greatest obstacle you have successfully overcome within the past 12 months?
e. Describe the tools and habits that keep you organized.
f. In what ways do you "raise the bar" for yourself and the people around you?
g. What is the airspeed velocity of an unladen swallow?
h. What is your preferred text editor?
i. What is the definition of Agile Development?
j. Who says "Have fun storming the castle?"
NOTE: Candidates who do not answer these ten questions will not be considered for the position.
Joel Test score: 11 out of 12
The Joel Test is a twelve-question measure of the quality of a software team.
  • Do you use source control? Yes
  • Can you make a build in one step? No
  • Do you make daily builds? Yes
  • Do you have a bug database? Yes
  • Do you fix bugs before writing new code? Yes
  • Do you have an up-to-date schedule? Yes
  • Do you have a spec? Yes
  • Do programmers have quiet working conditions? Yes
  • Do you use the best tools money can buy? Yes
  • Do you have testers? Yes
  • Do new candidates write code during their interview? Yes
  • Do you do hallway usability testing? Yes