> Markdown version of [/jobs/ext/4669118-junior-etl-software-engineer-226k-yr-ts-sci-fs-poly](https://www.wearedevelopers.com/jobs/ext/4669118-junior-etl-software-engineer-226k-yr-ts-sci-fs-poly). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Junior ETL Software Engineer [$226k/yr+] TS/SCI-FS Poly

- **Company:** SYSTOLIC, INC.
- **Location:** Bethesda, MD, United States
- **Experience:** Starter
- **Salary:** $226,000
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Amazon Web Services, Big Data, Data Governance, Extract Transform Load (ETL), Data Stores, DevOps, Memory Management, Python (Programming Language), NoSQL, Performance Tuning, Data Streaming, Data Processing, Load Balancing, Cloud Platform System, Real Time Systems, Apache Nifi, Restful APIs, Data Pipelines
- **Published:** November 11, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9308182/junior-etl-software-engineer-226kyr-tssci-fs-poly

## About the Role

* Degree: Technical bachelor's degree or equivalent experience
 * Years of experience: 2+ years
 * Total Compensation: $226k+ yearly (tentative)

## Description

* Develop and manage enterprise-level ETL data pipelines using Apache NiFi, Java, and Python.
 * Build, optimize, and troubleshoot large-scale data ingestion and transformation flows across cloud environments including AWS.
 * Integrate relational and NoSQL data stores via REST APIs within a DevOps lifecycle., * Develop and implement enterprise-level ETL NiFi data pipelines for large-scale data ingestion, transformation, and processing from diverse sources.
 * Optimize NiFi data flows, including processor tuning, memory management, and load balancing for batch and real-time processing.
 * Identify, diagnose, and resolve NiFi data flow issues, performance bottlenecks, data discrepancies, and integration failures.
 * Follow established best practices for NiFi development, deployment, security, and data governance.
 * Create and maintain comprehensive documentation for NiFi data flows, mappings, architectures, and standard operating procedures.
 * Collaborate with data architects, data engineers, and application developers to translate requirements into robust technical solutions.
 * Develop code and scripts using Java and Python to extract, triage, and process data across multiple data stores.