Senior Front-End Software Engineer

CACI International Inc

Senior Front-End Software Engineer designing scalable and reliable front-end services for mission applications. Joining a dynamic development team and directly impacting core product architecture.

Posted 7/4/2026full-timeKing of Prussia • Colorado, Pennsylvania • 🇺🇸 United StatesSenior💰 $75,200 - $158,100 per yearWebsite

Tech Stack

Tools & technologies

AWSAzureCloudDockerFlaskJavaJenkinsJUnitKubernetesMavenMongoDBPostgresPythonSpringSpring BootSpringBoot

About the role

Key responsibilities & impact

Design a front end user interface for an existing application that can be deployed within a modular system
Participate in customer working group to extract user needs and develop wire frame diagrams of the user interface
Work within a software development team to relay user needs to back end developers
Create E2E for verifying UI functionality
Participate in usability events to validate the user interface

Requirements

What you’ll need

Active Secret U.S. Government Security Clearance
Bachelor's degree in computer science or related field
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

Benefits

Comp & perks

healthcare
wellness
financial
retirement
family support
continuing education
time off benefits

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Hard Skills & Tools

Front End User Interface DesignE2E TestingUnit Testing (e.g., pytest, JUnit)Data Storage Solutions (PostgreSQL, MongoDB)Containerization Using DockerDeployment Using KubernetesLightweight Frameworks (FastAPI, Flask, Quarkus, Spring Boot)Software Packaging Tools (uv, pip, Maven)Source Control Tools (Git, GitLab)Integration Testing