Contract Java Developer Jobs in Colorado (NOW HIRING)

Job Title: Sr Backend 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: Up to 10% Type of Travel: Continental US Anticipated Posting End: 11/28/2026 The Opportunity: CACI is seeking a Senior Backend Software Developer for the GEOINT Tradecraft Suite (GTS), a mission-critical platform delivering advanced geospatial intelligence capabilities to national security users. In this role, you will design and develop scalable backend services that support mission applications, data processing, search, and integration across the GTS platform. You will work closely with software engineers, product owners, DevSecOps engineers, mission users, and program leadership to translate operational needs into reliable software solutions.

This position offers the opportunity to influence backend architecture, establish development best practices, and deliver capabilities used across the GEOINT community. Responsibilities: Design, develop, and maintain scalable backend applications and services using Java and related server-side technologies. Develop and integrate RESTful APIs, microservices, and data services supporting mission applications and workflows.

Design and implement solutions using AWS services and cloud-native architectures, with a focus on reliability, scalability, and security. Develop and optimize data solutions using relational databases such as PostgreSQL and MySQL, as well as Elasticsearch/OpenSearch, including data modeling, queries, indexing, search, and performance optimization. Provide technical leadership through architecture decisions, code reviews, troubleshooting, development standards, and mentoring while supporting Agile and CI/CD delivery practices.

Qualifications: Required: Hold an active TS/SCI clearance; a polygraph is preferred. Bachelor's degree in Computer Science, Software Engineering, Information Systems, or related field, or equivalent experience. 7+ years of software development experience, including significant hands-on experience developing backend applications and services using Java.

Strong experience with REST APIs, relational databases such as PostgreSQL or MySQL, Elasticsearch/OpenSearch, Git, and modern software development practices. Demonstrated ability to independently solve complex technical problems and collaborate effectively with engineers, product owners, DevSecOps teams, and mission stakeholders. Desired: Experience developing and deploying applications using AWS services and cloud-native architectures.

Experience with Spring Boot, microservices, containerization, and Kubernetes or similar orchestration technologies. Experience designing and implementing search and data discovery solutions using Elasticsearch or Amazon OpenSearch Service, including indexing strategies and query optimization. Experience supporting GEOINT, ISR, intelligence analysis, or other national security mission systems.

Experience mentoring developers and helping establish backend architecture, coding standards, and engineering best practices. - 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. The proposed salary range for this position is: $108,400 - 227,500 USD 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.