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TOMORROW HIRE

Data Scientist (Expert) - Active TS/SCI with Full Scope Polygraph (FSP)

McLean
Salary
$155,000 - $185,000
Level
Senior

Not stated in the posting: work type, visa.

Open. First seen 20 October 2026.

About the role

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.

What this role asks for

Standard for data science / ML roles

Python

Common in data science / ML postings at any company.

Compared with TOMORROW HIRE's other open jobs.

The team: Information Technology HIRES STEADILY

This role is one of 27 open in Information Technology. 18 were posted in the last 30 days and the oldest in August: a team that hires all year rather than one being built.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

JavaScript (11 of 27), AWS (10 of 27), Agile (9 of 27), Python (9 of 27), SQL (9 of 27), .NET (8 of 27), TypeScript (8 of 27)

OTHER ROLES ON THIS TEAM

From the team and dates on TOMORROW HIRE's own job board.

See Data Scientist salaries in the United States →

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