Senior Software Engineer – Mission-Critical Web & Backend (Top Secret)

CACI International Inc; Sterling (VA); On-site; USD 130,000 - 176,000; Full time

Job summary

CACI International Inc. in Sterling, VA seeks a Senior Software Engineer to design and deliver full‑stack applications powering mission‑critical systems.

You will lead development, define technical direction, and collaborate with cross‑functional teams across the lifecycle from concept to deployment. The role requires 7+ years of experience, strong cloud, DevOps, and security expertise, plus eligibility for TS clearance.

Qualifications

• 4 year degree or equivalent software experience.
• 7+ years of software development experience.
• Experience with commercial cloud technologies (AWS GovCloud).
• Proficiency with Java, JavaScript, HTML, HTML5, CSS, Groovy, Grails, Angular.
• Knowledge of Python and Java.
• Understanding of SaaS, microservices, containerization, security principles.
• Experience with DevOps tools (Nexus, Jenkins, Docker).
• Experience leading Agile and supporting mission-critical systems.

Responsibilities

• Design, develop, and maintain full-stack web applications and backend services.
• Lead software architecture discussions and technical direction.
• Build RESTful APIs and responsive user interfaces.
• Collaborate across engineering, PM, and customers to implement roadmaps.
• Deploy and operate mission-critical systems with DevOps practices and high uptime.
• Participate in code reviews and drive reliability improvements.
• Translate customer needs into technical requirements and BOEs.

Skills

Agile methodologies

DevOps practices

Security principles

Object-oriented design

Cloud technologies

Education

4 year degree or equivalent experience

Tools

AWS

Java

JavaScript

HTML/CSS

Groovy/Grails

Angular

Python

Docker

Job description

CACI International Inc. in Sterling, VA seeks a Senior Software Engineer to design and deliver full‑stack applications powering mission‑critical systems.

You will lead development, define technical direction, and collaborate with cross‑functional teams across the lifecycle from concept to deployment. The role requires 7+ years of experience, strong cloud, DevOps, and security expertise, plus eligibility for TS clearance.