Mid Level Software Developer Jobs in Denver, CO (NOW HIRING)

Job Title: Software Engineer - Mid level

Job Category: Engineering

Time Type: Full time

Minimum Clearance Required to Start: TS/SCI with Polygraph

Employee Type: Regular

Percentage of Travel Required: None

Type of Travel: None

Anticipated Posting End: 6/27/2026

The Opportunity:

We are seeking a skilled Software Developer to join our dynamic team working on the Makalu contract. This role involves building and maintaining highly used and critically important cloud-native applications that provide Situational Awareness and Collaboration capabilities. The ideal candidate will have a strong background in Java and/or JavaScript development, along with experience in modern software development practices and cloud technologies.

Responsibilities:

• Solve challenging technical problems and meet program objectives within the agile development cycle.

• Suggest ways to improve the architecture and software baseline.

• Introduce new ways to meet mission needs.

• Work on a complex near real-time web-app development team based on cloud architecture.

• Help maintain the existing architecture and code base.

• Design new features, services, and interfaces.

• Contribute to a positive and upbeat team atmosphere.

• Collaborate with cross-functional teams in an Agile environment.

• Implement and work with microservices architecture in cloud environments.

• Contribute to the full software development lifecycle, from conception to deployment.

• Ensure code quality through testing and code reviews.

Qualifications:

Required:

• Active TS/SCI clearance with a polygraph.

• Bachelor's degree in Computer Science, a related major, or graduation from a coding bootcamp.

• 5+ years of relevant experience.

• Experience working with Linux or similar Operating Systems.

• Experience working as a member of a development team participating in the complete product development lifecycle.

• Familiarity with Agile software development methodologies.

• Demonstrated Java and JavaScript programming experience in a Unix/Linux environment.

• Familiarity with Amazon Web Services (AWS).

• Familiarity with continuous integration and software CM processes/tools (Argo, GIT, JIRA, Confluence).

• Experience applying industry best practices to ensure system performance, reliability, scalability, and security.

• Strong troubleshooting/problem-solving skills.

• Effective communication skills.

• Time management and organizational skills, including the ability to work in a dynamic, real-time environment with rapidly changing priorities. Must be able to multi-task and work independently with minimum supervision to meet deadlines.

• Experience with microservice architectures.

• Familiarity with build tools (e.g., gradle, maven).

• Security+ or other IAT II qualified security certification (within 3 months of hire).

Desired :

• Familiarity with Elasticsearch and/or Postgres.

• Experience using Java Spring Boot framework.

• Development experience defining, developing, and maintaining REST-based interfaces.

• Experience with Container orchestration frameworks such as Docker and Kubernetes.

• Bonus if you have experience with networking, Redis, Kafka, Grafana, ELK stack (Elasticsearch, Logstash, Kibana).

• AWS Certification (Developer, DevOps, and/or Architect, etc.)

• A passion for creating beautiful, engaging, intuitive, efficient, and highly usable user interfaces.

• Experience with Infrastructure as Code (such as with Terraform or CloudFormation).

• Experience with vector and motion graphics, including SVG, HTML5 Canvas, WebGL, and animation via JavaScript and CSS.

• Experience with Typescript.

• Experience building rich data-driven web applications.

• Familiarity with real-time communication mechanisms such as WebSockets.

• Familiarity with Node, Cesium, and/or OpenLayers.

• Familiarity with emerging trends in desktop, web, and mobile app development.

• Experience with deployments, DevOps, and/or AWS.

• Experience with Git.

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:

$82,100-$172,400

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.