AI Developer T5 Chantilly, VA, US

CACI International; Chantilly (VA); On-site; USD 121,000 - 266,000; Full time

Job summary

CACI International Inc in Chantilly, VA is seeking an AI Web Developer to design and enhance a GenAI-enabled web application for a government client. You will integrate LLMs, AI services, APIs, and MCP servers using C#/.NET, HTML5, JavaScript, Bootstrap, CSS, SQL, and cloud services on AWS and MS platforms.

You will lead development efforts, evaluate technologies, ensure security and scalability, and collaborate with analysts and DoD experts to translate complex requirements into reliable

Qualifications

• Minimum 2 years of web or software development experience.
• Active TS/SCI clearance with CI Polygraph.
• Experience with HTML, JavaScript, CSS, C#/.NET, and Bootstrap.
• Experience developing or integrating GenAI apps and LLMs via APIs/SDKs.
• Cloud experience with AWS and Microsoft platforms.
• Experience building web APIs, backend services, and SQL solutions.
• Familiarity with MCP servers and external system integrations.
• Knowledge of prompt engineering, tool calling, and RAG techniques.

Responsibilities

• Design, develop, test, and enhance GenAI-enabled web application features.
• Integrate LLMs, AI services, APIs, MCP servers, and data sources into workflows.
• Evaluate approaches, troubleshoot performance, security, and scalability issues.
• Develop and maintain web APIs, backend services, and SQL solutions.
• Leverage AWS and MS cloud services to deploy, monitor, and support apps.
• Apply GenAI techniques like prompt engineering and RAG to improve capabilities.
• Collaborate with analysts and experts; conduct code reviews and maintain docs.

Skills

HTML5

JavaScript

CSS

C#/.NET

Bootstrap

GenAI

LLM integration

APIs

AWS

Microsoft Cloud

SQL

Prompt engineering

RAG

Python

Docker

Education

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

Tools

Microsoft Foundry

Amazon Bedrock

Amazon SageMaker

MCP servers

Docker

Job description

## AI Developer T5Chantilly, VA, USApply NowUse AI to find out how well you match with this jobJob ID: 334509Job Title: AI Developer T5Job Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Local\\* \\* \\***The Opportunity:**CACI is seeking an AI Web Developer to design, develop, and enhance a generative AI (GenAI) application that streamlines business processes for a government customer. In this role, you'll lead complex development efforts, influence technical direction, and integrate large language models (LLMs), APIs, MCP servers, and other AI capabilities into secure, scalable solutions. You'll work across C#/.NET, HTML5, JavaScript, Bootstrap, CSS, SQL, and cloud services across AWS and Microsoft platforms. Collaborating with developers, analysts, and subject-matter experts, you'll translate complex business needs into maintainable AI-powered solutions, evaluate emerging technologies, and recommend approaches that expand application capabilities and improve workflows.**Responsibilities:** • Design, develop, test, and enhance GenAI-enabled web application features. • Integrate LLMs, AI services, APIs, MCP servers, tools, data sources, and business systems into application workflows. • Evaluate technical approaches, recommend solutions, and troubleshoot complex issues involving performance, security, scalability, maintainability, and application integrations. • Develop and maintain web APIs, backend services, and SQL solutions to support application functionality and system integration. • Leverage AWS, MS cloud services, and AI platforms to develop, deploy, monitor, and troubleshoot applications. • Apply prompt engineering, tool calling, retrieval-augmented generation (RAG), and other GenAI techniques to enhance application capabilities. • Collaborate with developers, analysts, and subject-matter experts to refine requirements and assess feasibility; conduct code reviews, maintain documentation, and follow coding, testing, security, configuration management, and release standards. **Qualifications:** Required: • Minimum of two (2) years of relevant web development or software development experience that matches or relates to the technologies outlined below. • Active TS/SCI clearance with CI Polygraph. • Demonstrated experience developing and supporting web applications using HTML, JavaScript, CSS, C#/.NET, and Bootstrap. • Experience developing or integrating GenAI applications, LLM-powered interfaces, AI assistants, or other AI-enabled solutions. • Knowledge of AI terminology and integration approaches • Experience integrating multiple LLMs or AI services through APIs, SDKs, or other application integration mechanisms. • Experience with AI platforms such as Microsoft Foundry, Amazon Bedrock, Amazon SageMaker, or comparable services. • Experience developing web APIs, backend services, and SQL-based solutions. • Experience using AWS and/or Microsoft cloud services to develop, deploy, monitor, and support cloud-based applications. • Familiarity with MCP servers, tools, and integrations that connect AI capabilities to external systems. • Practical knowledge of prompt engineering, tool calling, retrieval-augmented generation (RAG), or similar techniques for building LLM-powered applications. • Ability to evaluate technical tradeoffs, troubleshoot complex issues, and develop secure, reliable, and maintainable software. Desired: • Bachelor's degree in Computer Science, Information Systems, Software Engineering, or a related field, or equivalent work experience. • Experience developing software with Python. • Experience with containerized or serverless architectures and cloud services such as AWS Lambda, ECS, RDS, or CloudWatch. • Familiarity with Agile methodologies, technical design reviews, and code review practices. • Experience supporting applications in Department of Defense (DoD) or Intelligence Community (IC) environments. • CompTIA Security+ certification.-**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 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:$120,800 - $265,800*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.*