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DETAILS Location : Ideally local to Addison, TX Hybrid strongly preferred. Open to remote candidates, but local applicants will be given priority. Position Type : Contract (6+ Months) Compensation : Based on Experience! Citizenship Requirements : No sponsorship is being offered at this time. Green Card Holders and US Citizens only. BACKGROUND REQUIREMENTS All candidates must be able to pass a criminal and financial background check. POSITION DETAILS GTN Technical Staffing is seeking a Senior Data Integration Engineer with expertise in Apache NiFi and PostgreSQL for a Contract role based in Addison, TX (Hybrid preferred, remote considered for the right candidate).The ideal candidate will support data movement, transformation, and orchestration across a growing SaaS ecosystem serving ~100 enterprise customers. This individual will own the design, development, and optimization of NiFi-based ETL pipelines and ensure efficient, secure delivery of data into and out of the PostgreSQL environment. Youll work in a high-availability production setting and collaborate with DevOps, Data Engineering, and Application teams to ensure seamless data operations in a cloud-native stack. ETL Pipeline Ownership : Design, build, and maintain end-to-end ETL workflows using Apache NiFi Data Integration : Configure NiFi processors for secure ingestion, transformation, and delivery across internal and external endpoints PostgreSQL Data Management : Tune queries, optimize storage, and support schema evolution for a multi-tenant data architecture Monitoring & Troubleshooting : Set up data flow monitoring, error handling, and performance tuning to ensure reliable delivery Collaboration : Work with developers, product teams, and external vendors to define data exchange requirements and interface specifications Documentation : Maintain accurate documentation for all pipelines, transformation logic, and integration points TECHNICAL REQUIREMENTS Building ETL pipelines, with a strong emphasis on Apache NiFi Deep hands-on experience managing PostgreSQL in production environments, including schema design and performance optimization Experience working in multi-tenant SaaS environments with ~100 enterprise customers Familiarity with common integration protocols (REST, SFTP, JDBC, Kafka, etc.) Strong scripting or programming experience (Python, Bash, Groovy, or Java preferred) Knowledge of data governance and data quality best practices Understanding of role-based access, secrets management, and encryption in data flows Comfortable with Agile workflows and cloud-native development practices HIGHLY DESIRED, BUT NOT REQUIRED Experience integrating NiFi with cloud storage (e.G., AWS S3, Azure Blob) Experience working in regulated industries (SOC 2, HIPAA, etc.) Familiarity with visualization and reporting platforms (Power BI, Tableau, Metabase) Exposure to containerized environments (Docker / Kubernetes)

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