Senior ETL Data Engineer

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Senior Data Engineer
Columbia, MD
Contract
Visa : USC, EAD, GC on W2

The Senior Data Engineer is responsible for orchestrating, deploying, maintaining, and scaling cloud and/or on-premise infrastructure supporting big data and enterprise data platforms (Relational and NoSQL, distributed and converged systems).
This role focuses on:

Reliability
Automation
Performance optimization
Delivering data-driven insights and business value

Key Responsibilities (Essential Functions)
20% – Infrastructure Development

Develop and maintain data infrastructure systems (data warehouses, data lakes).
Build and maintain data access APIs.
Prepare and manipulate data using multiple technologies.

15% – Data Analysis & Reporting

Interpret and analyze data using statistical techniques.
Deliver ongoing reports and actionable insights.
Support data-driven decision-making for key projects.
Design and execute quality control procedures across multiple systems.

15% – Data Modeling

Develop logical and physical data models.
Evaluate and enhance data warehouse architecture.
Apply metadata standards and modeling conventions.
Plan data classes, indexing, replication, backup, retention, and recovery strategies.

15% – Data Collection Frameworks

Create frameworks for structured and unstructured data collection.

15% – Continuous Learning & Innovation

Stay current with emerging technologies and best practices.
Participate in professional workshops and industry networking.

10% – ETL / ELT Development

Apply data extraction, transformation, and loading techniques.
Integrate large datasets from multiple sources.

10% – Best Practices Implementation

Implement best practices in:
- Data auditing
- Scalability
- Reliability
- Application performance

Required Qualifications
Education

Bachelor’s Degree in:
- Computer Science
- Information Technology
- Engineering
- Related field

In lieu of degree:
Additional 4 years of relevant experience (on top of required experience).
Experience

5+ years of experience in:
- Database design
- Data modeling tools
- ETL/ELT development
- Application development
- Relational database development
- Data architecture

Preferred Knowledge, Skills & Abilities (KSAs)
Expert Level

SQL / NoSQL / Python (at least one programming language)
Database design & implementation
Data exchange formats
Data movement concepts
Strong analytical & problem-solving skills

Advanced Level

Organizational and communication skills
Ability to manage multiple priorities

Compliance & Work Expectations

Must disclose any debarment or exclusion impacting Federal healthcare program eligibility.
Ability to work in a fast-paced, dynamic environment.
Capable of handling shifting priorities and deadlines.
Strong customer service skills (internal & external stakeholders).
Ability to manage demanding or complex situations professionally.

#M1

#DI-CB2

Ref: #851-Rockville-S1

Type: Contract

Experience: 5

Education: BS

Category: Information Technology

Contractor Work Model: Hybrid

Brand: System One

Shift: On-Site

Compensation Range: 70.55 Per Hour

Job ID: 346177

Date Posted: 02/12/2026

Shortcut: https://jobs.systemone.com/LNRuTA