Data Scientist (Expert) - Active TS/SCI with FSP Location: McLean, VA Clearance Required: TS/SCI with Full Scope Polygraph (FSP) Position Type: Full-Time, On-Site Salary Range: $155,000 – $185,000 Description We are seeking a Data Scientist (Expert) to support mission-focused work. The Data Scientist (Expert) is a specialized, Java-focused technical expert responsible for modernizing, refactoring, and maintaining mission-critical backend Java data processing systems and microservices for the customer. Unlike traditional Python/R data science roles, this position directly addresses a backlog of legacy Java data pipelines and requires an expert software engineer who can contribute meaningfully on Day One to system performance, object-oriented design, and enterprise web service integrations. The position requires an active TS/SCI with Full Scope Polygraph (FSP). Primary Responsibilities • Legacy Java System Modernization: Analyze, maintain, and rewrite legacy Java backend processes to align with updated operational requirements and performance standards. • Microservices & Web Service Development: Build, maintain, and secure robust Spring Boot microservices, REST APIs, and database integrations supporting web application architectures. • Performance Tuning & Memory Management: Optimize multithreading, object-oriented design (OOP), and JVM memory management for high-throughput enterprise data flows. • Cloud & Database Integration: Deploy and maintain Java-based applications across AWS cloud infrastructure, Linux OS, Apache Tomcat, and Oracle databases. • Build Pipeline Management: Utilize build and version control tools (Maven, Gradle, Git, Jenkins, Eclipse) to support continuous integration and deployment in a secure environment. Requirements Minimum Qualifications: • Core Java: OOP concepts, multithreading, and JVM memory management • Spring and Spring Data JPA • Build systems & tools: Eclipse, Maven, Gradle, Git, Jenkins • Oracle, Apache Tomcat, AWS Cloud Framework, Linux • Developing & using REST web services • Active TS/SCI with Full Scope Polygraph (FSP) required. • Must work on-site in McLean, VA. Preferred Qualifications: • Spring Boot and REST API Java implementations to support web applications Benefits Salary Salary for this position is determined based on factors such as location, qualifications, experience, and contract-specific budget considerations. Proposed Salary Range: $155,000 – $185,000 Benefits We offer a comprehensive and competitive benefits package, including: • 100% Company-Paid Health Insurance: Full coverage for medical, dental, and vision insurance for employees and their dependents (United Healthcare and Guardian). • Protection Plans: Employer-paid life, short-term disability, and long-term disability insurance. • 401(k) Retirement Contribution: 15% of base salary contributed by the company, fully vested from day one. • Paid Time Off: 200 hours of PTO annually (accrued), in addition to 11 federal holidays. • Bonuses: Recruitment and business development bonus opportunities based on performance and company growth.