Senior Backend Software Engineer

CACI International Inc

Backend/Services Software Engineer building scalable Java and Python microservices for CACI. Join our dynamic team to implement high-performance cloud solutions in AWS.

Posted 6/11/2026full-timeKing of Prussia • Colorado, Pennsylvania • 🇺🇸 United StatesSenior💰 $82,100 - $172,400 per yearWebsite

Tech Stack

Tools & technologies

AWSAzureCloudDockerFlaskJavaJenkinsJUnitKubernetesMavenMongoDBPostgresPythonSpringSpring BootSpringBootTypeScript

About the role

Key responsibilities & impact

Writing, building, deploying, and maintaining diverse software applications
Overseeing and guiding the requirements analysis, writing, building, and deployment of software
Overseeing automated testing and providing feedback to management during the development process
Modifying and testing changes to previously developed programs
Collaborating effectively within a software engineering team

Requirements

What you’ll need

At least 5 years of professional software development experience and working proficiency in Python and/or Java
Experience with lightweight frameworks such as FastAPI, Flask, Quarkus, or Spring Boot
Proficiency with software packaging tools (uv, pip, Maven, etc.)
Comprehensive testing experience, including unit tests (e.g., pytest, JUnit), system tests, and integration tests
Proficiency with various data storage solutions (PostgreSQL, MongoDB, AWS or Azure cloud storage services)
Experience with source control tools (e.g., Git, GitLab)
Experience implementing and managing CI/CD pipelines using tools such as GitLab CI/CD or Jenkins
Experience containerizing and deploying applications using Docker and Kubernetes
Ability to work in office full time
Bachelor's degree in computer science or related field
Active TS/SCI U.S. Government Security Clearance

Benefits

Comp & perks

healthcare
wellness
financial
retirement
family support
continuing education
time off benefits

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

PythonJavaFastAPIFlaskQuarkusSpring BootpytestJUnitPostgreSQLMongoDB

Soft Skills

collaborationguidancefeedback

Certifications

Bachelor's degree in computer scienceTS/SCI U.S. Government Security Clearance