Data Scientist 3

Requisition Number: 29243

Required Travel: 11 - 25%

Employment Type: Full Time/Salaried/Exempt

Anticipated Salary Range: $103,467.00 - $145,000.00

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 employee grows, leads, and contributes—regardless of role. It sets the standard for how you can develop yourself and what you can expect from leaders across our organization. We look for candidates who want to grow in alignment with these capabilities:

• 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 Data Scientist 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 advancing data-driven capabilities within joint training, simulation, and synthetic environments.

What You Will Do

• Lead end-to-end data science workflows, including problem definition, data acquisition, feature engineering, model development, deployment, and lifecycle monitoring

• Translate operational and training objectives into data-driven approaches and define analytical requirements for AI/ML integration into JTSE and Joint Training Tools

• Design and maintain scalable data pipelines and architectures for real-time and near-real-time ingestion, processing, and analysis

• Develop, train, and optimize machine learning models—including large-scale and foundation models—to enhance simulation and decision-support capabilities

• Ensure data interoperability, quality, and consistency across multiple sources and systems

• Integrate AI/ML models into simulation and synthetic environments, including FISE, to enable advanced analytics and scenario generation

• Support exercise planning, execution, and after-action analysis using predictive analytics, anomaly detection, and performance metrics

• Define and enforce data standards, schemas, and governance practices

• Conduct model testing, validation, and performance evaluations

• Identify and mitigate risks related to data quality, model bias, scalability, and performance

• Support MLOps/DevSecOps practices for secure, reproducible, and continuous delivery

• Collaborate with cross-functional government, industry, and mission partners

• Document data pipelines, models, methodologies, and analytical findings for technical and non-technical audiences

What You Must Have

• 5 years of related experience with a Bachelor’s degree; 3 years with a Master’s; 0 years with a PhD/JD; or 9 years of relevant experience with a high school diploma

• Hands-on experience building and deploying machine learning or statistical models in operational environments

• Strong knowledge of data processing, architectures, and distributed systems

• Proficiency in Python or R and common data science libraries

• Experience with data wrangling, feature engineering, and exploratory data analysis

• Understanding of supervised/unsupervised learning and model evaluation

• Experience creating technical documentation

• Ability to work in cross-functional teams and manage multiple priorities

• Strong analytical and problem solving skills

• Experience working in Linux environments

• Must have an active Secret Clearance

Preferred Requirements

• Experience developing or fine-tuning large-scale or foundation models (LLMs, multimodal models).

• Familiarity with modern AI/ML frameworks.

• Experience deploying ML models into production systems or enterprise environments.

• Knowledge of real-time data processing and streaming technologies (Kafka).

• Familiarity with Joint Training and Simulation environments such as JTSE, JLVC, or similar DoD systems.

• Understanding of data governance, data standards, and enterprise data strategy.

• Experience with simulation data or synthetic environments.

• Familiarity with MLOps/DevSecOps pipelines and secure model deployment.

• Experience supporting joint, multi-domain, or coalition operations.

• Relevant certifications (AWS, Kubernetes, Security+, CISSP, or similar).

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.