Senior Data Scientist (SECRET REQ)

JOB SUMMARY

GTMR, Inc. is seeking a Data Scientist to support advanced data analytics, machine learning development, and data integration efforts within Army Vantage and other Department of Defense (DoD) platforms. This role is primarily remote; however, candidates must be able to support mission requirements and collaborate with stakeholders across distributed teams, including occasional engagement with Army or government personnel as needed.

The ideal candidate will play a critical role in designing, developing, and optimizing data-driven solutions that enhance operational decision-making. This position offers the opportunity to work on complex, mission-focused initiatives, leveraging cutting-edge technologies to deliver scalable, secure, and impactful data science capabilities in support of national defense objectives.

RESPONSIBILITIES

• Design, develop, and maintain advanced data science solutions within Army Vantage and related DoD platforms
• Build, deploy, and optimize machine learning models, including ensemble models, neural networks, and LLM-based solutions
• Develop and integrate APIs and automated data pipelines across Army and vendor systems (e.g., AESMP, Army 365, DISA, NetOps tools, Splunk, First Alert)
• Support data ingestion, transformation, and orchestration efforts in compliance with Army and DoD standards
• Design and optimize data architectures to support predictive analytics and visualization within Vantage environments
• Analyze complex datasets to generate actionable insights for mission stakeholders
• Collaborate with cross-functional teams, including military personnel and technical staff, to deliver data-driven solutions
• Ensure data integrity, security, and compliance with DoD and Army policies, including secure data exchange via CDS
• Communicate technical findings and recommendations clearly to both technical and non-technical audiences

QUALIFICATIONS: 

Required:

• Bachelor’s or Master’s degree in Data Science, Computer Science, or a related field.
• 5–7 years of experience in data science, preferably supporting government or military programs.
• Proficiency in Python, R, SQL, and modern data science frameworks.
• Experience working within Palantir Foundry (Ontology, Data Marketplace) and Army Vantage environments.
• Strong background in statistical analysis, machine learning, and predictive modeling.
• Experience designing and integrating APIs within DoD or Army systems.
• Familiarity with data architecture, infrastructure, and large-scale data pipeline development.
• Understanding of DoD cloud environments (IL4, IL5, IL6) and secure data handling practices.
• Strong communication skills and experience working in cross-functional environments.
• Active SECRET security clearance.

Preferred:

• Experience with Army-specific systems and data platforms
• Proven track record deploying machine learning models in operational environments
• Experience with LLM vectorization, customization, and advanced analytics techniques
• Certifications in data science, cloud computing, or related technical fields
• Familiarity with cybersecurity and compliance requirements in DoD environments

GTMR, Inc. provides equal employment opportunity (EEO) to all employees and applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability status, genetic information, marital status, ancestry, protected veteran status, or any other characteristic protected by applicable federal, state, and local laws and offers equal opportunity for VEVRAA Protected Veterans. GTMR, Inc., will not discriminate against employees and job applicants who inquire about, discuss or disclose compensation information.

Reasonable accommodations that do not cause an undue hardship on the company may be made to enable individuals with disabilities to perform essential functions, as long as that would not hinder or prevent performance of duties or be of a safety concern.

PHYSICAL DEMANDS:

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of the job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

While performing the duties of this job, the employee is required to reach with hands and arms. The employee is frequently required to sit, stand and walk. The employee may be required to move ten pounds and could occasionally lift or move up to twenty-five pounds.

Disclaimer: The listed duties are not intended to serve as a comprehensive list of all duties performed by all employees in this classification, only a representative summary of primary duties and responsibilities. 

Castellum is composed of three subsidiaries Corvus Consulting, Specialty Systems, and GTMR. We are a technology company focused on leveraging the power of information technology to help solve our Nation's most pressing national security challenges. We provide US government and commercial clients with Cybersecurity, Software Development, Systems Engineering, Information / Electronic Warfare, Program Support, and Data Analytics services. We also offer subject matter expertise in artificial intelligence / machine learning, 5G technologies, model-based systems engineering, program management, information assurance, intelligence analysis, and CMMC compliance.