AI Software Developer (Mid-level) - TS/SCI with Polygraph
Mid-level AI developer building and integrating locally hosted LLMs and ML models into classified government systems, focusing on secure, air-gapped environments and production-grade AI features.
Compensation
$142.8K–$189.8K / yr
Location
USA VA Chantilly
Work setup
Not specified
Seniority
Middle
Employment
Full time
Experience
3+ years
Category
Software engineering
Posted
Skills
ai
api
aws
azure
ci-cd
cloud
data-engineering
data-pipelines
data-science
docker
embeddings
git
huggingface
java
javascript
json
llm
machine-learning
mistral
ollama
prompt-engineering
python
pytorch
rag
rest
sql
transformers
typescript
vector-search
version-control
vllm
Must have
Active TS/SCI (poly required or in process)
3+ years of professional software development experience (or 5+ without a degree)
Strong Python proficiency and working knowledge of at least one additional language (JavaScript/TypeScript, Java, or similar)
Hands-on experience with AI/ML concepts in real projects: model inference, embeddings, vector search, or prompt engineering
Experience with REST APIs, JSON, SQL, and version control (Git)
Comfort working in restricted or disconnected development environments, or demonstrated ability to adapt to them
Strong problem-solving and communication skills; ability to work on-site in a SCIF full time
Nice to have
Experience running or integrating locally hosted LLMs (Llama, Mistral, Hugging Face transformers, vLLM, Ollama, or similar) rather than solely commercial APIs
Familiarity with PyTorch or similar ML frameworks
Experience with Docker and CI/CD pipelines, especially in offline or artifact-mirrored setups
Exposure to government cloud (Azure Government, AWS GovCloud) or IC/DoD program environments
Understanding of data security, classification handling, and responsible AI practices
Prior NRO or IC program experience
Full description
Type of Requisition:
PipelineClearance Level Must Currently Possess:
Top Secret/SCIClearance Level Must Be Able to Obtain:
Top Secret SCI + PolygraphPublic Trust/Other Required:
NoneJob Family:
Data Science and Data EngineeringJob Qualifications:Skills:
Artificial Intelligence (AI), Large Language Models (LLMs), Machine Learning (ML)Certifications:
NoneExperience:
8 + years of related experienceUS Citizenship Required:
YesJob Description:
We are seeking a mid-level AI Software Developer to build and integrate AI-enabled features into mission applications operating on classified networks. Working under the direction of the Senior AI Engineer, you will implement machine learning and large language model capabilities within established architectural patterns and governance guardrails, alongside strong general software engineering work. This role emphasizes practical, production-quality delivery in an environment where AI systems must run locally — without external API access — and where security, auditability, and data handling discipline are part of everyday engineering.
Key Responsibilities
Develop and maintain software applications incorporating AI/ML capabilities within air-gapped and accredited government cloud environments
Implement LLM-backed features (retrieval-augmented generation, embeddings, summarization, classification) using locally hosted models and program-approved patterns
Build and maintain data pipelines supporting AI-driven features, with correct classification handling and data hygiene
Integrate AI capabilities with existing program systems and workflows via REST APIs and structured data formats
Write clean, testable, well-documented code; participate in code reviews and follow team engineering standards
Implement required logging, audit, and evaluation instrumentation per the program's AI rules of engagement
Support deployment, monitoring, and iterative improvement of AI-enabled systems, including model updates transferred into the environment
Collaborate with program staff and stakeholders to refine requirements into working software
Required Qualifications
Active TS/SCI (poly required or in process)
3+ years of professional software development experience (or 5+ without a degree)
Strong Python proficiency and working knowledge of at least one additional language (JavaScript/TypeScript, Java, or similar)
AI Software Developer (Mid-level) - TS/SCI with Polygraph at General Dynamics Information Technology (USA VA Chantilly) — aijobsearch
Hands-on experience with AI/ML concepts in real projects: model inference, embeddings, vector search, or prompt engineering
Experience with REST APIs, JSON, SQL, and version control (Git)
Comfort working in restricted or disconnected development environments, or demonstrated ability to adapt to them
Strong problem-solving and communication skills; ability to work on-site in a SCIF full time
Preferred Qualifications
Experience running or integrating locally hosted LLMs (Llama, Mistral, Hugging Face transformers, vLLM, Ollama, or similar) rather than solely commercial APIs
Familiarity with PyTorch or similar ML frameworks
Experience with Docker and CI/CD pipelines, especially in offline or artifact-mirrored setups
Exposure to government cloud (Azure Government, AWS GovCloud) or IC/DoD program environments
Understanding of data security, classification handling, and responsible AI practices
Prior NRO or IC program experience
GDIT IS YOUR PLACE At GDIT, the mission is our purpose, and our people are at the center of everything we do.
Growth: AI-powered career tool that identifies career steps and learning opportunities
Support: An internal mobility team focused on helping you achieve your career goals
Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off
Community: Award-winning culture of innovation and a military-friendly workplace
OWN YOUR OPPORTUNITY Explore a career in data science and engineering at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your determination for solving complex data challenges.
The likely salary range for this position is $142,792 - $189,750. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.Scheduled Weekly Hours:
40Travel Required:
NoneTelecommuting Options:
OnsiteWork Location:
USA VA ChantillyAdditional Work Locations:Total Rewards at GDIT:
Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.
Our Identity Verification Process:
As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.About Our Work:
We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.Join our Talent Community to stay up to date on our career opportunities and events at.
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