Sr Backend Software Developer

CACI International Inc; Denver (CO); On-site; USD 108,000 - 228,000; Full time

Job summary

CACI International Inc is seeking a Senior Backend Software Developer for the GEOINT Tradecraft Suite (GTS) in Denver. You will design, develop, and maintain scalable backend services, RESTful APIs, and data pipelines that support mission applications and geospatial intelligence workflows.

Collaborating with software engineers, product owners, DevSecOps, and mission stakeholders, you will influence backend architecture, establish development best practices, and deliver reliable capabilities

Qualifications

• 7+ years of software development experience with backend Java.
• Active TS/SCI clearance; polygraph preferred.
• Bachelor's degree in CS/SE/IS or related field or equivalent experience.
• Strong REST APIs, relational DBs (PostgreSQL/MySQL), Elasticsearch/OpenSearch, and CI/CD.

Responsibilities

• Design, develop, and maintain scalable backend applications and services using Java.
• Develop and integrate RESTful APIs, microservices, and data services for mission apps.
• Design and implement solutions using AWS cloud-native architectures with reliability and security.
• Model, query, and optimize data in PostgreSQL/MySQL and Elasticsearch/OpenSearch.
• Provide technical leadership through architecture decisions, code reviews, and mentoring.

Skills

Java

REST APIs

AWS

PostgreSQL

MySQL

Elasticsearch/OpenSearch

Git

CI/CD

Backend architecture

Education

Bachelor's degree in Computer Science/Software Engineering/Information Systems or related field

Tools

Spring Boot

Docker

Kubernetes

Git

Job description

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 have 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.