> Markdown version of [/jobs/ext/4669117-junior-etl-engineer-244k-yr-ts-sci-fs-poly](https://www.wearedevelopers.com/jobs/ext/4669117-junior-etl-engineer-244k-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 Engineer [$244k/yr+] TS/SCI-FS Poly

- **Company:** SYSTOLIC, INC.
- **Location:** Bethesda, MD, United States
- **Experience:** Starter
- **Salary:** $244,000
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Amazon Web Services, Big Data, Cloud Computing, Extract Transform Load (ETL), Data Stores, DevOps, Memory Management, Amazon DynamoDB, Elasticsearch, Python (Programming Language), PostgreSQL, NoSQL, Performance Tuning, Data Streaming, Load Balancing, Cloud Platform System, Real Time Systems, Apache Nifi, Restful APIs, Data Pipelines
- **Published:** November 11, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9308189/junior-etl-engineer-244kyr-tssci-fs-poly

## About the Role

* Degree: Technical bachelor's degree or equivalent experience
 * Years of experience: 4+ years
 * Total Compensation: $244k+ 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 software development 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.
 * Write and maintain code and scripts using Java and Python to extract, triage, and exploit data across domains and data stores.
 * Deploy and support ETL solutions in cloud and hybrid environments, interfacing with PostgreSQL, Elasticsearch, and DynamoDB.
 * Integrate RESTful web services and data APIs for seamless data connectivity.
 * Create and maintain comprehensive documentation for NiFi data flows, mappings, architectures, and operating procedures.
 * Collaborate with cross-functional teams to translate technical requirements into robust solutions within a DevOps framework.