Senior Full-Stack Developer (C#/.NET) — TS/SCI

CACI International, Inc.; McLean (VA); On-site; USD 90,000 - 190,000; Full time

Job summary

CACI International, Inc. in McLean, VA is seeking a Full Stack Software Developer with C#/.NET expertise. You will develop and maintain web applications using C#, AngularJS, and TypeScript on an Agile team, collaborating with customers to define features and ensure performance and quality.

You will work on complex mission-critical projects, with up to 10% travel and TS/SCI with Polygraph clearance required. The role emphasizes ownership, rapid learning, and strong customer engagement.

Qualifications

• TS/SCI with Polygraph Clearance required
• Bachelor’s degree in Computer Science or related field
• At least 7 years of experience developing and/or deploying software on high side environments
• Must be proficient or above in: C#, .NET, JavaScript, HTML, CSS, Angular Material UI components
• Node.js and TypeScript
• Excellent problem-solving skills and attention to detail, and demonstrate working with a sense of urgency
• Excellent communication and experience working directly with customers on requirements and concepts, and ability to facilitate and maintain strong working customer relationships
• Ability to learn and apply functional concepts very quickly

Responsibilities

• Develop and maintain web applications using C#, Angular JS and TypeScript
• Collaborate with team and customer to define, design, and deliver new features and enhancements
• Ensure the performance, quality, and responsiveness of applications
• Identify and correct bottlenecks and fix bugs
• Help maintain code quality, organization, and automation
• Participate in code reviews and provide constructive feedback to other developers
• Stay up-to-date with emerging technologies and industry best practices

Skills

C#

.NET

JavaScript

HTML

CSS

TypeScript

Node.js

Education

Bachelor’s degree in Computer Science or related field

Job description

CACI International, Inc. in McLean, VA is seeking a Full Stack Software Developer with C#/.NET expertise. You will develop and maintain web applications using C#, AngularJS, and TypeScript on an Agile team, collaborating with customers to define features and ensure performance and quality.

You will work on complex mission-critical projects, with up to 10% travel and TS/SCI with Polygraph clearance required. The role emphasizes ownership, rapid learning, and strong customer engagement.