What You'll be Owning

GRVTY is seeking an ETL Developer with a TS/SCI + Poly clearance (applicable to this customer) to join one of our top projects in McLean, VA. This role focuses on developing, maintaining, and optimizing data pipelines to ensure reliable data flow into a PostgreSQL database. The ideal candidate will have strong experience in ETL processes, data integration, and working with large, complex datasets, including geospatial data.

Design, develop and manage ETL workflows using Apache NiFi to support a geospatial visualization platform
Learn the nuances of the existing NiFi system and the related AWS and PostgreSQL infrastructure in order to monitor and troubleshoot real time issues
Obtain an understanding of existing NiFi flows with minimal support from others
Develop new NiFi flows that adopt best practices of existing NiFi flows
Take feedback on NiFi flows and develop requested changes
Take direction and communicate status via a ticketing system
Interface with analysts via email, chat, and in person meetings to comprehend future data flow needs and refine general requirements into specific actions
Interface with a development cycle using a local development environment of containerized infrastructure and version control via Git and NiFi Registry
Gain competency in geospatial database design and employ best practices for table creation, indexing, and unique constraints
Take feedback from analysts on nuances to support application data layers
Programmatically manipulate and transform data from multiple sources
Query and analyze large datasets using SQL
Retrieve and process data from external systems via APIs
Support data quality, integrity, and performance optimization efforts
Understand Python and data science frameworks while differentiating between experimental prototypes and enterprise level software requirements
Develop Python in support of data science related efforts or ETL prototypes

What You Must Have

Active TS/SCI with Polygraph Clearance
Bachelor’s degree in Computer Science, Systems Engineering, Geography, or a related technical field (or equivalent experience).
Minimum 8 years of experience with a Bachelor’s degree; or 7 years of experience with a Masters degree; or 6 years of experience with a Doctorate.
Experience in developing NiFi flows using existing best practices.
Strong understanding of ETL concepts and best practices.
Strong experience with databases for data management.
Proficiency in SQL for querying large datasets.
Experience with API integration and data retrieval.
Demonstrated experience with programmatic data manipulation.
Competency to rapidly adopt containerized development proficiency.
Competency to rapidly adopt AWS architecture proficiency.
Competency to rapidly adopt NiFi registry and Git for code management.

What Would be Nice to Have

Creativity to experiment and recommend best practice coding improvements.
Drive to adopt and recommend AI into development processes.
Ability to design and develop custom NiFi processors using Java.
Experience with AWS cloud services for data ingestion and processing.
Strong experience with PostgreSQL for data management.
Hands-on experience with Apache Airflow.
Hands-on experience with Apache NiFi.
Hands-on experience with NiFi registry and Git.
Hands-on experience with Git and repository actions and pull requests.
Hands-on experience in Python for data manipulation and API interfacing.
Experience working with geospatial data and related tools.
Understanding of basic data science concepts and tools

Pay Range: At GRVTY, we understand that compensation is influenced by many factors—such as geographic location, federal contract labor categories, wage rates, prior experience, skillsets, education, and certifications.

We’re proud to offer a work environment that empowers our team to achieve a strong work-life balance. GRVTY provides competitive pay, comprehensive benefits, and meaningful opportunities for professional growth.

Our benefits package is designed to support the well-being of our employees and their families, and includes coverage in areas such as healthcare, financial wellness, retirement planning, family assistance, continued education, and paid time off.