Senior AI/RAG Engineer – Software Development Analyst

Mission Technologies, a division of HII

. Develop and maintain production-grade Python backend services and RESTful APIs .

Posted 10/15/2026full-timeRemote • Virginia • United StatesSenior💰 $160,000 - $175,000 per yearWebsite

Tech Stack

Tools & technologies

AWSCloudCyber SecurityDjangoFlaskPostgresPythonSQL

About the role

Key responsibilities & impact

Develop and maintain production-grade Python backend services and RESTful APIs
Design secure API contracts covering schemas, documentation, validation, authentication, authorization, error handling, and versioning
Implement business logic, workflows, asynchronous processing, and integrations with enterprise systems, databases, and AI/RAG services
Integrate services with approved Amazon Bedrock capabilities using Boto3 and defined AI service interfaces
Support streamed AI responses and implement retries, timeouts, logging, auditing, and error recovery
Design and optimize PostgreSQL or equivalent relational database models, queries, transactions, and data-access patterns
Implement Zero Trust-aligned security practices, DoW/DoD ICAM integration, least-privilege access, secure service-to-service communication, API authorization, encryption, secrets management, and audit logging
Develop and remediate application components according to STIG/SRG requirements and support security assessment and authorization activities
Contribute to DevSecOps practices including Git, CI/CD, automated testing, containerized delivery, vulnerability remediation, and application monitoring
Collaborate with front-end, AI/ML, platform, cybersecurity, and identity teams
Support DSCA through secure, scalable services and integrations for an AI-enabled enterprise application in AWS GovCloud IL4/IL5

Requirements

What you’ll need

Strong experience developing Python backend services and RESTful APIs
Experience with FastAPI, Flask, Django, or comparable Python web frameworks
Experience with SQL and relational databases, preferably PostgreSQL
Experience integrating cloud services, enterprise systems, and external or internal APIs
Experience integrating applications with AI/LLM or RAG services
Experience with Git, automated testing, CI/CD, secure software development, and containerized applications
Working knowledge of AWS cloud services and cloud-native application design
Experience implementing authentication, API and service-level authorization, and enterprise identity integration using OAuth 2.0, OpenID Connect, SAML, JWT, RBAC, or ABAC
Working knowledge of DoW/DoD ICAM, Zero Trust principles, least-privilege access, and secure software supply-chain practices
Familiarity with applicable DISA STIGs, SRGs, secure configuration requirements, and vulnerability-remediation workflows
Must possess and maintain an active Secret clearance at the time of consideration
Bachelor's degree in a related field with 5 or 9 years of relevant experience depending on software development level; or Master's degree with 3 or 7 years; or PhD with 0 or 4 years; or high school diploma/equivalent with 9 or 13 years
Preferred: 8+ years of experience
Preferred experience with AWS GovCloud, Amazon Bedrock, API Gateway, S3, and Boto3
Preferred experience with streaming APIs, WebSockets, server-sent events, queues, or asynchronous processing
Preferred experience with RAG architectures, vector databases, document-ingestion workflows, or AI orchestration services
Preferred experience supporting RMF activities, security-control evidence, continuous monitoring, or STIG/SRG assessment remediation
Must align with Eastern Time Zone core business hours
Must maintain a home work environment meeting company and government security requirements
Must be able to work assigned East Coast core business hours

Benefits

Comp & perks

Best-in-class medical, dental and vision plan choices
Wellness resources
Employee assistance programs
Savings Plan Options (401(k))
Financial planning tools
Life insurance
Employee discounts
Paid holidays and paid time off
Tuition reimbursement
Early childhood and post-secondary education scholarships
Bonus/other non-recurrent compensation occasionally offered for qualified positions
Supportive and welcoming environment
Valuable educational and training programs for continual career growth