Software Engineer (Engineer Software 3)

Requisition Number: 27914 Required Travel: 0 - 10% Employment Type: Full Time/Salaried/Exempt Anticipated Salary Range: $96,951.00 - $130,000.00 Security Clearance: Secret Level of Experience: Senior This opportunity resides with Global Security (GS). Mission Technologies’ Global Security (GS) group comprises live, virtual, constructive (LVC) solutions; fleet sustainment; nuclear and environmental; and Australia business. As a trusted partner to our military customers, HII designs, develops and operates the largest LVC enterprise that prepares warfighters for cross-domain battle. With advanced technologies to enable mission readiness, HII understands that preparation requires full coordination—not readiness in piece-parts. For more than 40 years, the U.S. Navy has entrusted HII to maintain and modernize the vast majority of its fleet. With a holistic approach to life-cycle maritime defense systems—from small watercraft to submarines, surface combatants and aircraft carriers—HII ensures a high state of readiness. HII supports the Department of Energy’s national security mission through the management and operation of its sites, as well as the safe cleanup of legacy waste across the country. HII meets clients’ toughest nuclear and environmental challenges. Leadership Mindset at HII – Mission Technologies Leadership at HII is a mindset, not a title. Through our Leadership Capability Framework, we define how every team member contributes to our mission and culture: Know & Grow Your People – Commit to learning and supporting team success. Build Relationships – Communicate openly, collaborate well, and build trust. Take Ownership – Deliver on commitments and take pride in your work. Customer First – Focus on the mission and those we serve. Shape the Future – Bring ideas, curiosity, and continuous improvement. Act with Urgency – Take initiative and follow through with purpose. These capabilities guide how all employees contribute to our shared success across Mission Technologies. Summary Mission Technologies, a division of Huntington Ingalls Industries, is seeking an experienced Software Engineer to support the Joint Training Synthetic Environment (JTSE) and JLVC Modernization effort under the Joint Staff J7 (JS J 7) contract. This role focuses on integrating advanced software and AI capabilities into next generation joint training and simulation environments. What You Will Do • Design, develop, and maintain software systems integrating foundational and frontier AI models into joint training environments. • Build scalable data pipelines to ingest and process real time and near real time data from operational and T&E sources. • Integrate AI enabled capabilities into Joint Training Tools and simulation systems, including the Fully Informed Simulation Environment (FISE). • Collaborate with government stakeholders and partner organizations to align solutions with modernization goals and mission requirements. • Develop and optimize systems enabling rapid training updates, dynamic scenario generation, and AI driven adversary (OPFOR) behaviors. • Enhance planning, execution, and AAR processes with improved data capture, analysis, and visualization tools. • Ensure interoperability across combatant commands and services within a unified training environment. • Apply software engineering best practices including version control, automated testing, and CI/CD pipelines. • Support performance tuning, scalability, and reliability in high demand training scenarios. • Document system architectures, interfaces, and operational procedures. What You Must Have • 5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in related field; 0 years relevant experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 9 years relevant experience. • Must have a Secret Clearance or ability to obtain within 45 days of hire. • Proficiency in one or more programming languages (Python, Java, C++). • Experience developing software in distributed systems, microservices, and API driven architectures. • Hands on experience with containerization and orchestration technologies such as Docker and Kubernetes. • Familiarity with data engineering concepts including data ingestion, ETL/ELT, transformation, and storage. • Experience working with SQL and NoSQL databases. • Basic understanding of machine learning concepts and AI model integration workflows. • Experience developing in Linux-based environments and using common CLI tools. • Proficiency with version control systems (Git) and collaborative development workflows. • Experience with automated testing frameworks and supporting CI/CD pipelines. • Understanding of networking fundamentals including REST, messaging protocols, and service-to-service communication. • Ability to document system architectures, APIs, and technical interfaces clearly and logically. Preferred Requirements • Experience integrating or deploying AI/ML models using modern frameworks (PyTorch, TensorFlow, ONNX). • Familiarity with real time data streaming technologies (e.g., Kafka). • Experience with DoD training or simulation environments (JTSE, JLVC, LVC). • Knowledge of enterprise data architecture and secure data integration. • Background in DevSecOps, automated security testing, and secure development. • Experience with infrastructure as code tools (Ansible, Terraform). • Prior experience supporting large-scale exercises, planning systems, or after-action review tools The listed salary range for this role is intended as a good faith estimate based on the role's location, expectations, and responsibilities. When extending an offer, HII's Mission Technologies division takes a variety of factors into consideration which include, but are not limited to, the role's function and a candidate's education or training, work experience, and key skills. 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: 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 View email address on click.appcast.io 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 View phone number on click.appcast.io for assistance. Press 3 for HII Mission Technologies.aa415a4b-8b21-40fc-a65c-70d2b25ca29a