Data Engineer

In person Interview

Title: ETL Data Engineer 

Location: Washington, DC-4 days onsite

MUST HAVES-

• 15+ yrs ETL / Data Engineering experience — end-to-end ETL pipelines, multiple data sources
• Strong Azure — especially ADF, Synapse, Azure SQL, ADLS Gen2, Blob Storage
• Strong SQL — relational databases
• 5+ years visualization/reporting tools — Esri ArcGIS, Tableau, or MicroStrategy
• Data formats — Oracle/SQL/Postgres/DB2 + CSV/XML + Parquet/AVRO
• Data integration/pipeline tools — Informatica, NiFi, Airflow, FME
• Data warehouse / data lake / BI concepts
• 7+ yrs Azure experience
• 5+ yrs data integration tools

ETL data engineer will support the Enterprise Data team for data curation, processing, and transformation tasks.  Specifically, the ETL data engineer will be responsible for the following tasks:

Responsibilities:

• Analyzes, designs, develops, implements, replicates, and supports complex enterprise data projects.
• Interfaces with other agencies, consult with and inform user departments on system requirements, advise on environment constraints and operating difficulties for the current state and advise and resolve problems using cloud solutions and develop and replicate future enhancements to District’s data systems.
• Strong knowledge of Extraction, Transformation and Loading (ETL) processes using frameworks like Azure Data Factory, Synapse, Databricks, Informatica by gathering requirements from the stake holders or analyzing the existing code and perform enhancements or new development.
• Establishing the cloud and on-premise connectivity in different systems like ADLS, ADF, Synapse, Databricks
• Hands on experience in Azure cloud services like Azure Data Factory or Azure Synapse, MSSQL Db, Azure SQL DB, Azure Data Lake Storage Gen2, Blob Storage, Python etc.
• Worked on creating end to end pipelines to load data by reading it from multiple sources or source systems and load to landing layer or SQL tables.
• Familiarity/experience with data integration and data pipeline tools (e.g., Informatica, Synapse, Apache NiFi, Apache Airflow)
• Familiarity/experience with various data formats including database specific (Oracle, SQL Server, DB2, Quickbase), text formats(CSV, XML) and Binary(Parquet, AVRO)
• Develops, standardizes and optimizes existing data workflow/pipelines adhering to best practices.
• Adhere and contribute to enterprise data governance standards by ensuring data accuracy, consistency, security, and reliability.
• Automates, monitors, alerts, and manages data pipelines and workflows.
• Analyzes and evaluates system changes to determine feasibility, provides alternative solutions, back-up, and rollback procedures.
• Works on the development of new systems, upgrades and enhancements to existing systems and ensure systems follow approved standards and consistency after the changes.
• Develops complex programs and reports in database query language.
• Familiarity/experience with data visualization tools.
• Familiarity/experience handling and securing sensitive data based on the level of the sensitivity

Qualifications

• Bachelor’s degree in Information Technology or related field or equivalent experience
• Required 15 Years Strong knowledge for development of Extract-Transform-Load (ETL) processes, including end-to-end pipelines with data loading from multiple sources
• Required 15 Years Ability to gather and document requirements for data extraction, transformation and load processes
• Required 15 Years Understanding of data warehousing, data lake, business intelligence and information management concepts and standards.
• Required 15 Years Ability to advise internal and external customers on appropriate tools and systems for complex data processing challenges.
• Required 15 Years Knowledge and use of SQL for relational databases
• Required 11 Years Experience with various data formats including database specific (Oracle, SQL, Postgres, DB2), text formats (CSV, XML) and Binary (Parquet, AVRO)
• Required 11 Years Contribute to enterprise data governance standards by ensuring accuracy, consistency, security and reliability
• Required 7 Years Strong experience with Microsoft Azure tools such as Azure Data Factory, Synapse, SQL Database, Data Lake Storage Gen2, Blob Storage Required 5 Years Experience with data integration and data pipeline tools such as Informatica PowerCenter, Apache NiFi, Apache Airflow and FME
• Required 5 Years Experience with visualization and reporting software such as MicroStrategy, Tableau, and Esri ArcGIS
• Highly desired 3 Years Strong communication skills, both oral and written
• Required 3 Years Ability to provide excellent customer service to external partners
• Required 3 Years Ability to work independently or as part of a larger team
• Highly desired 3 Years Experience performing data functions with Databricks