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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Data Engineer - **Company:** MANTECH-3 LLC - **Location:** Reston, VA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Agile Methodology, Amazon Web Services, Data Analysis, Cyber Security, Databases, Data Cleansing, Data Transmissions, Relational Databases, Database Design, Graph Database, Information Theory, Python (Programming Language), PostgreSQL, Machine Learning, MySQL, NIPRNet, NoSQL, Scrum Methodology, Server Administration, SQLite, SQL Databases, Data Processing, Scripting, System Availability, Data Lakes, Qlikview, Apache Nifi, Data Management, Databricks - **Published:** July 13, 2026 - **Apply:** https://www.careerjet.com/jobad/usd11e23dc054326c27068ca9002b05e94 ## About the Role Clearance: MUST have an Active TS/SCI clearance ***MUST HAVE an Active TS/SCI clearance****, * 3+ years of professional experience needed for MOST of our opportunities * Python experience with data manipulation, scripting, and more * Databricks experience * Proficient in designing and implementing Extract Transform Load (ETL) data processes * Experience with at least ONE relational database, such as PostgreSQL, MySQL or SQLite * Experience with Agile SCRUM methodologies Preferred Technical Skills (NICE TO HAVES): * Familiar with database design, server management, connection protocols, database normalization, and principles of information theory * Experience with data cleaning or data organization * Familiar with NiFi, SQL, NoSQL and Graph Databases and Data Lakes * Familiar with Dashboarding tools similar to Qlik * Familiar with Cybersecurity with design and implementation of unique data transfer protocols ## Description Exceptional Data Engineers to ensure data availability (movement, modification, and storage) with Software Engineers and Data Scientists ensuring deployments and scalability for critical users!! We are considering Mid to Senior Level Data Engineers. We are expanding and need to hire motivated data engineers to help build innovative solutions for our customers. The ideal candidate needs limited direction and must be passionate about technology. A willingness and desire to pick up new technologies or languages quickly is a must. Our team builds and deploys cutting-edge AI and Machine Learning applications that directly support national security missions. We leverage the Databricks platform for advanced data science and engineering, and transform complex model outputs into compelling, interactive dashboards using Qlik. These solutions are built to empower 19 key Principal Staff members (Senior Executive Service members and General Officers) within the Office of the Undersecretary of Defense (OUSD) and the Intelligence community. Our products provide them with the critical, data-driven insights needed for strategic decision-making. Our work is grounded in successful deployments on JWICS, NIPR, SIPR utilizing AWS, combining commercial best practices in an Agile environment to ensure we deliver impactful capabilities to senior defense leadership., MANTECH is seeking a motivated, career and customer-oriented Unified Communications Engineer to join our team in Chantilly, VA, to support a large enterprise IT system. 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