Data Scientist (Expert) - Active TS/SCI with Full Scope Polygraph (FSP)
- 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
- Applications Developer - Active TS/SCI with Full Scope Polygraph (FSP) posted Oct 20
- Data Analyst - Active TS/SCI with CI Polygraph (CIP) posted Oct 20
- Data Engineer - Active TS/SCI with CI Polygraph (CIP) posted Oct 20
- Data Scientist - Active TS/SCI with CI Polygraph (CIP) posted Oct 20
- Infrastructure Engineer - Active TS/SCI with Full Scope Polygraph (FSP) posted Oct 20
- Mid-Level Systems Engineer - Active TS/SCI with Full Scope Polygraph (FSP) posted Oct 20
- Palantir Platform Engineer - Active TS/SCI with Full Scope Polygraph (FSP) posted Oct 20
- Platform Engineer - Active TS/SCI with Full Scope Polygraph (FSP) posted Oct 20
- Software Development Engineer - Active TS/SCI with Full Scope Polygraph (FSP) posted Oct 20
- UI/UX Developer - Active TS/SCI with Full Scope Polygraph (FSP) posted Oct 20
- Senior Business Process Analyst - RPA & Intelligent Automation (TS Clearance) posted Oct 16
- Dynamics Developer posted Oct 15
- Power Platform Developer posted Oct 14
- Technical Lead (.NET/SQL) Programmer Analyst 4 posted Oct 14
- Principal Software Engineer posted Oct 9
- Amazon Connect Developer posted Oct 9
- Cybersecurity Engineer 3 posted Sep 22
- Security Analyst/Technical Support Analyst 3 posted Sep 17
- Application Support/Technical Support Analyst 3 posted Sep 16
- Application Security Architect posted Sep 15
- Programmer Analyst 3 posted Sep 15
- Web Developer - Active Secret Clearance posted Sep 15
- Business Analyst 3 posted Sep 15
- Senior Web Developer - Active Secret Clearance posted Sep 15
- Principal Systems Architect - Mission Systems posted Sep 14
- ServiceNow Developer - Active Secret Clearance posted Aug 21
From the team and dates on TOMORROW HIRE's own job board.
See Data Scientist salaries in the United States →
Similar jobs
- Cyber Full-Stack Senior Manager/ Engineering Manager at Deloitte
Shares 12 skills: Gradle, Maven, Oracle… · same country - Java Developer – 4–8 Years || USC/GC/H4EAD at hudsonmanpower
Shares 11 skills: Gradle, Maven, Oracle… · same country - Software Engineer - Mid Level at Leidos
Shares 11 skills: Gradle, Maven, Spring… · same country - Mid/Sr Software Developer at GRVTY
Shares 10 skills: Gradle, Spring, Microservices… · Senior level · same country - Sr. Engineering Manager - Full Stack at Illumio
Shares 9 skills: Gradle, Maven, Spring… · same country - UI/UX Developer - Active TS/SCI with Full Scope Polygraph (FSP) at TOMORROW HIRE
Also at this company
Is this your posting? Email info@careerholo.com to have it removed.