Senior Data Systems Engineer: Graph DBs & Secure Cloud

RCT-Systems; Chantilly (VA); On-site; USD 140,000 - 200,000; Full time

Benefits offered by this job

Competitive benefits package (medical,

Job summary

RCT Systems is seeking a Systems Engineer with strong Data Engineering experience to design, secure, and optimize mission‑critical data solutions. The role combines system engineering, secure cloud architecture, analytics, ETL/AI‑ML data engineering, and virtualization technologies.

You will work with Cypher/Python/Java, graph technologies, and communicate complex concepts to diverse stakeholders. Responsibilities include designing ETL pipelines for AI/ML/LLM projects, preprocessing and

Qualifications

• Active TS/SCI with polygraph required.
• Minimum 5 years of experience with BS/BA, including at least 2 years in Sponsor programs.
• Hands-on with ETL pipelines, data modeling, and AI/ML‑supportive data engineering.
• Proficiency in Cypher, Python, or Java.
• Experience with graph technologies (Neo4j) and Cypher queries.
• Experience cleaning, modeling, and visualizing medium-to-large datasets.
• Experience developing dashboards or system visualizations.
• Experience operating with Docker and Kubernetes.
• Understanding of classified/high-security cloud environments.
• Strong ability to communicate complex concepts to diverse stakeholders.

Responsibilities

• Design, build, and optimize ETL pipelines, including data flows supporting AI/ML/LLM projects and large-scale analytics.
• Clean, preprocess, analyze, and visualize medium-to-large datasets using modern analytic and statistical methods.
• Build and optimize Neo4j graph database solutions including schema design, relationship modeling, and efficient Cypher query development.
• Develop software components in Cypher, Python, Java, or JavaScript following secure development practices.
• Maintain documentation for datasets, queries, security artifacts, engineering decisions, and developed software components.

Skills

TS/SCI with polygraph

Cypher

Python

Java

ETL pipelines

Data modeling

AI/ML data engineering

Graph databases

Neo4j

Docker

Kubernetes

Cloud security

Communication skills

Dashboards

Visualization

Data visualization

Education

BS/BA

Tools

Neo4j

Tableau

Docker

Kubernetes

Job description

RCT Systems is seeking a Systems Engineer with strong Data Engineering experience to design, secure, and optimize mission‑critical data solutions. The role combines system engineering, secure cloud architecture, analytics, ETL/AI‑ML data engineering, and virtualization technologies.

You will work with Cypher/Python/Java, graph technologies, and communicate complex concepts to diverse stakeholders. Responsibilities include designing ETL pipelines for AI/ML/LLM projects, preprocessing and