Data Engineer – Big Data & AI/ML pipelines

About the role

MANTECH is seeking a motivated Data Engineer to join its Chantilly, VA team, supporting national‑security intelligence initiatives. You will design, ingest, cleanse, transform, and display large data sets in a Big Data environment.

Key responsibilities

• Design, implement, and optimise data extraction, transformation, loading, replication and large‑scale ingest systems.
• Develop custom code to ingest new data sources and create profiling, deduplication and matching logic for analysis.
• Maintain data‑layer documentation and collaborate with data scientists to build AI/ML pipelines.
• Work with teammates, vendors and users to improve data‑handling efficiency and communicate risks.

Required profile

• High school diploma plus 4+ years of data engineering, software development or programming experience.
• Hands‑on experience with the full data lifecycle in a Big Data environment.
• Active TS/SCI clearance with polygraph.

Required skills

• Python or Java programming.
• SQL and database management.
• Java technologies (JDK, J2EE, EJB, JDBC, Spring).
• RESTful APIs, Apache Airflow, Linux, ETL processes.

What we offer

• Competitive salary range $114,600 – $190,200 per year.
• Health, life, disability and retirement benefits.
• Paid time off, holiday pay and wellness programs.
• Learning and development opportunities.