Data Scientist (Expert) – Java Systems

Job overview

The Data Scientist (Expert) – Java Systems is an onsite, full-time role in McLean, VA, paying $155,000–$185,000 per year. An active TS/SCI clearance with Full Scope Polygraph is required. The role supports mission-focused work modernizing and maintaining customer mission-critical data-processing systems. Despite the title, the posting describes a Java-focused technical expert who works on backend systems and microservices rather than a traditional Python- or R-focused data science role. The work improves legacy data pipelines, system performance, and secure enterprise integrations.

What you'll do

• Analyze, maintain, and modernize legacy Java backend processes
• develop and secure Spring Boot microservices, REST APIs, and database integrations
• tune multithreading, object-oriented design, and JVM memory management
• deploy and maintain applications across AWS, Linux, Apache Tomcat, and Oracle
• and use build and version-control tools to support secure continuous integration and deployment.

What we're looking for

Skills & competencies

data scientist (expert)

java systems

mclean va

tomorrow hire

full-time

$155k–$185k

ts/sci

full scope polygraph

java

spring boot

rest apis

aws

onsite

Work arrangement

• Weekend coverage required

Benefits & perks

• Company-paid medical, dental, and vision insurance
• employer-paid life and disability insurance
• 401(k) contribution of 15% of base salary, vested from day one
• 200 hours of annual PTO and 11 federal holidays
• performance-based recruitment and business development bonus opportunities.

Why this role

Active TS/SCI with Full Scope Polygraph required; Java, Spring, REST services, Oracle, AWS, Linux, and build-tool experience are specified. Benefits include company-paid health insurance and a 15% 401(k) contribution.

About the employer

TOMORROW HIRE is hiring for this role. Industry: All Other Professional, Scientific, and Technical Services. Sector: 54.