This opportunity resides with Warfare Systems (WS) , a business group within HII ’s Mission Technologies division. Warfare Systems comprises cyber and mission IT; electronic warfare; and C5ISR systems.
HII works within our nation’s intelligence and cyber operations communities to defend our interests in cyberspace and anticipate emerging threats. Our capabilities in cybersecurity, network architecture, reverse engineering, software and hardware development uniquely enable us to support sensitive missions for the U.S. military and federal agency partners.
Meet HII ’s Mission Technologies Division
Our team of more than 7,000 professionals worldwide delivers all-domain expertise and advanced technologies in service of mission partners across the globe. Mission Technologies is leading the next evolution of national defense – the data evolution - by accelerating a breadth of national security solutions for government and commercial customers. Our capabilities range from C5ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment, environmental remediation and the largest family of unmanned underwater vehicles in every class. Find the role that’s right for you. Apply today. We look forward to meeting you.
To learn more about Mission Technologies, click here for a short video:
Job Description
Join the growing Warfare Systems Business Group at HII –Mission Technologies! We are seeking an experienced Senior AI/RAG Back-End Developer (Python, APIs, AWS GovCloud) to support Defense Security Cooperation Agency (DSCA) by building secure, scalable services and integrations for an AI‑enabled enterprise application. In this role, you will design and implement the application layer that connects the front end with enterprise systems, relational databases, and approved AI/RAG capabilities within an AWS GovCloud IL4/IL5 environment.
Essential Job Responsibilities
Develop and maintain production-grade Python backend services and RESTful APIs using FastAPI, Flask, Django, or similar frameworks .
Design secure API contracts , including schemas, documentation, validation, authentication, authorization, error handling, and versioning.
Implement application 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 appropriate retries, timeouts, logging, auditing, and error-recovery mechanisms.
Design and optimize PostgreSQL or equivalent relational database models, queries, transactions, and data-access patterns .
Implement Zero Trust-aligned security practices, including DoW/DoD ICAM integration , least-privilege access, secure service-to-service communication, API-level authorization, encryption, secrets management, and audit logging.
Develop and remediate application components in accordance with applicable 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 to deliver dependable application capabilities.
Minimum Qualifications
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 API s.
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 standards or patterns such as 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 .
Clearance: Must possess and maintain an active Secret clearance at the time of consideration
Fully Remote position; must align with Eastern Time Zone core business hours
Software Development 3
5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in related field; 0 years experience with PhD in related field; or High School Diploma or equivalent and 9 years relevant experience.
Software Development 4
9 years relevant experience with Bachelors in related field; 7 years relevant experience with Masters in related field; 4 years relevant experience with PhD in related field; or High School Diploma or equivalent and 13 years relevant experience.
**Salary level based on background, direct experience and education
Preferred Requirements
8+ years of preferred experience
Experience working in A WS GovCloud, including Amazon Bedrock, API Gateway, S3, and Boto3 .
Experience with streaming APIs, WebSockets, server-sent events, queues, or asynchronous processing patterns .
Experience with RAG architectures, vector databases, document-ingestion workflows, or AI orchestration services.
Experience working with front-end, AI/ML, platform, cybersecurity, and identity-management teams.
Physical Requirements
Ability to remain in a stationary position for prolonged periods while working at a computer.
Ability to operate a keyboard, mouse, and standard office equipment to perform analytical tasks.
Must be able to effectively communicate in virtual meetings, briefings, and secure collaboration environments.
Ability to review, analyze, and interpret digital data for extended periods with attention to detail and accuracy.
Occasional light lifting of documents or equipment up to 10 lbs, if needed for home-office setup.
Must maintain a home work environment that meets company and government security requirements (e.g., controlled space for handling sensitive or FOUO information, if applicable).
Must be able to work assigned East Coast core business hours to support program and customer requirements.
HII is more than a job - it’s an opportunity to build a new future. We offer competitive benefits such as 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; as well as early childhood and post-secondary education scholarships. Bonus/other non-recurrent compensation is occasionally offered for qualified positions, and if applicable to this role will be addressed by the recruiter at the screening phase of application.
Why HII
We build the world’s most powerful, survivable naval ships and defense technology solutions that safeguard our seas, sky, land, space and cyber. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.
Recognized as one of America’s top large company employers, we are a values and ethics driven organization that puts people’s safety and well-being first. Regardless of your role or where you serve, at HII , you’ll find a supportive and welcoming environment, competitive benefits, and valuable educational and training programs for continual career growth at every stage of your career.
Together we are working to ensure a future where everyone can be free and thrive.
All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, physical or mental disability, age, or veteran status or any other basis protected by federal, state, or local law.
Do You Need Assistance?
If you need a reasonable accommodation for any part of the employment process, please send an e-mail to and let us know the nature of your request and your contact information. Reasonable accommodations are considered on a case-by-case basis. Please note that only those inquiries concerning a request for reasonable accommodation will be responded to from this email address. Additionally, you may also call 1-844-849-8463 for assistance. Press #3 for HII Mission Technologies.
