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Senior Application Developer Jobs in Boulder, CO

Vertafore

Sr. Application Security Engineer

Denver, CO · On-site

$60.50 - $80.75/hr

The Senior Application Security Engineer is responsible for advancing application, product, cloud ... architecture, DevOps, cloud, and security teams to identify risk early, define secure design ...

Vertafore

Sr. Application Security Engineer

Denver, CO · On-site

$60.50 - $80.75/hr

The Senior Application Security Engineer will support secure design reviews, threat modeling ... Collaborate with DevOps and platform teams to embed security controls into CI/CD workflows while ...

Vertafore

Sr. Application Security Engineer

Denver, CO · On-site

$60.50 - $80.75/hr

The Senior Application Security Engineer is responsible for advancing application, product, cloud ... architecture, DevOps, cloud, and security teams to identify risk early, define secure design ...

Vertafore

Sr. Application Security Engineer

Denver, CO · On-site

$60.50 - $80.75/hr

The Senior Application Security Engineer is responsible for advancing application, product, cloud ... architecture, DevOps, cloud, and security teams to identify risk early, define secure design ...

Stantec

Senior Application Architect

Denver, CO · On-site

Mentor and guide developers in implementing the architecture correctly and assist in troubleshooting complex issues. The Senior Application Architect will act as a bridge to our custom software ...

Stantec

Senior Application Architect

Denver, CO · On-site

$111K - $167K/yr

Mentor and guide developers in implementing the architecture correctly and assist in troubleshooting complex issues. The Senior Application Architect will act as a bridge to our custom software ...

BCforward

Application Developer

Denver, CO · On-site

Application Developer Location: DENVER CO 80202 Duration: 3+months Design and build custom ... We're looking for a hands-on lead, or even a senior engineer that has experience overseeing ...

Stantec

Senior Application Architect

Denver, CO · On-site

Typically, 8+ years in software engineering/architecture covering the full software development lifecycle, with at least a couple of years in a senior application design/architecture capacity. • ...

Western Union

Senior Application Architect

Denver, CO · On-site

Austin, TX Western Union is seeking a Staff Software Engineer on the Retail Engineering team ... Responsible for end-to-end application design, development, and delivery across both backend ...

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All JobsApplication Developer JobsSenior Application Developer JobsSenior Application Developer Jobs in Boulder, CO

Senior Application Developer information

See Boulder, CO salary details

$56.8K

$120.9K

$167.9K

How much do senior application developer jobs pay per year?

As of Aug 18, 2026, the average yearly pay for senior application developer in Boulder, CO is $120,944.00, according to ZipRecruiter salary data. Most workers in this role earn between $101,000.00 and $138,900.00 per year, depending on experience, location, and employer.

What is a senior application developer?

Senior Application Developers are experienced professionals who design, build, and maintain complex software applications. They lead development teams, make key architectural decisions, and ensure that software projects meet technical standards and business requirements. In addition to writing code, they often mentor junior developers, troubleshoot high-level issues, and collaborate with other departments to deliver robust solutions. Their expertise helps organizations create scalable and efficient applications tailored to business needs.

What are the key skills and qualifications needed to thrive as a senior application developer?

To thrive as a Senior Application Developer, you need advanced programming skills, a deep understanding of software development lifecycles, and typically a bachelor’s degree in computer science or related fields. Mastery of languages like Java, C#, or Python, experience with frameworks, databases, and familiarity with version control systems (such as Git) are essential, and certifications like AWS Certified Developer or Microsoft Certified: Azure Developer Associate can be advantageous. Strong problem-solving, leadership, and communication skills help you manage projects and mentor junior developers. These skills are crucial for delivering robust, scalable applications and ensuring effective collaboration within development teams.

What are some typical challenges faced by senior application developers when leading development projects?

Senior Application Developers often encounter challenges such as balancing project deadlines with code quality, managing technical debt, and integrating new technologies into existing systems. They are typically responsible for mentoring junior developers, which requires strong communication and leadership skills. Additionally, they must collaborate closely with cross-functional teams, such as QA, UX/UI designers, and product managers, to ensure that project requirements are met while maintaining scalability and performance standards.

What is the difference between Senior Application Developer vs Application Engineer?

AspectSenior Application DeveloperApplication Engineer
Required CredentialsBachelor's degree in CS or related field; 5+ years experience; programming certificationsBachelor's degree in CS or related field; 3+ years experience; technical certifications
Work EnvironmentDesigning, developing, and maintaining applications; leading projectsImplementing, testing, and supporting applications; collaborating with development teams
Employer & Industry UsageTech companies, finance, healthcare; senior roles in software developmentIT firms, manufacturing, telecom; technical support and implementation roles

While both roles involve application development, Senior Application Developers typically lead projects and have more experience, whereas Application Engineers focus on implementing and supporting applications within technical teams.

How much does a senior application developer make?

The average salary for a senior application developer typically ranges from $100,000 to $150,000 annually, depending on experience, location, and industry. Skilled developers with expertise in specific programming languages, frameworks, or certifications may earn higher compensation. Salaries can also vary based on company size and project complexity.

What are the most commonly searched types of Application Developer jobs in Boulder, CO?

The most popular types of Application Developer jobs in Boulder, CO are:

What cities near Boulder, CO are hiring for Senior Application Developer jobs?

Cities near Boulder, CO with the most Senior Application Developer job openings:

Senior Application Developer jobs near you
Infographic showing various Senior Application Developer job openings in Boulder, 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 $120,944 per year, or $58.1 per hour.

Senior Application Developer

CACI International, Inc.

Denver, CO • On-site

$75K - $158K/yr

Full-time

Medical, Retirement, PTO

Re-posted 3 days ago

Job description

Job Title: Senior Application Developer
Job Category: Information Technology
Time Type: Full time
Minimum Clearance Required to Start: TS/SCI with Polygraph
Employee Type: Regular
Percentage of Travel Required: Up to 10%
Type of Travel: Continental US
Anticipated Posting End: 12/31/2026
The Opportunity:
  • Lead application development on a fast-paced Agile team building mission-critical GEOINT applications for the National Geospatial-Intelligence Agency (NGA).
  • Design and deliver modern web-based capabilities that analysts use to drive intelligence decisions.
  • Set the technical bar for a team of developers working across cloud-native architectures and large-scale data environments.
  • See your work deployed to real mission users with rapid feedback loops.

Responsibilities:
  • Lead design, development, testing, and deployment of web applications using Java and/or Python.
  • Architect application features, APIs, and integrations across program services and external systems.
  • Develop and maintain GIS-enabled application capabilities and geospatial services.
  • Drive code quality through code reviews, unit testing, and secure coding practices.
  • Troubleshoot complex issues and lead performance tuning across the application stack.
  • Collaborate with Product Owners, architects, and cross-functional teams to deliver PI commitments.
  • Mentor mid-level and junior developers and contribute to engineering standards.

Qualifications:
Required:
  • Bachelor's degree in Computer Science, Software Engineering, or a related technical discipline (equivalent experience accepted).
  • 8+ years of professional software development experience.
  • Expert-level development in Java, Python, or both, including modern web frameworks.
  • Experience designing and consuming RESTful APIs and service-based architectures.
  • Strong experience with relational and non-relational databases.
  • Experience with CI/CD, Git-based workflows, and automated testing.
  • Security Clearance (TS/SCI) with willingness to undergo polygraph examination.

Desired:
  • Experience with GIS technologies (ArcGIS, GeoServer, OpenLayers, Cesium, or similar).
  • Experience with containerization and cloud deployment (Kubernetes, AWS/C2S).
  • Experience operating within SAFe or Agile delivery frameworks.
  • Experience using geospatial software such as Esri ArcGIS Pro / ArcGIS Enterprise and related APIs.

What You Can Expect:
A culture of integrity.
At CACI, we place character and innovation at the center of everything we do. As a valued team member, you'll be part of a high-performing group dedicated to our customer's missions and driven by a higher purpose - to ensure the safety of our nation.
An environment of trust.
CACI values the unique contributions that every employee brings to our company and our customers - every day. You'll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.
A focus on continuous growth.
Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground - in your career and in our legacy.
Pay Range:
There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.
Since this position can be worked in more than one location, the range shown is the national average for the position.
The proposed salary range for this position is:
$75,200-$158,100
CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

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