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Senior Applications Developer (SQL Server Database Developer)

Company:
System One Holdings, LLC
Location:
Washington, DC, 20022
Posted:
January 21, 2026
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Description:

Senior SQL Server Applications Developer

100% ONSITE Washington DC (New York Ave)

Long Term Contract- Possible Multi year extension based on performance

Per Federal contract U.S. Citizenship Required

Must be able to pass enhanced background screen (criminal, financial, drug) for Public Trust clearance

W-2 or C2C

MUST APPLY BY JAN 27th

NOTE: The candidate is expected to report ONSITE 5 days per week at our office in downtown DC. This is not a remote/hybrid position.

Work Experience:

We seek a senior SQL Server Applications Developer with demonstrated expertise in designing, implementing, and supporting sophisticated database applications built on SQL Server. The ideal candidate will have extensive experience developing, securing, and supporting SQL Server based applications and can effectively:

Design, develop, and maintain database applications to support complex system requirements

Write, analyze, and optimize SQL queries and scripts

Develop and maintain database solutions following Agile methodologies

Implement deployment procedures and release management for database changes

Ensure database performance, security, and reliability through proactive monitoring

Collaborate with development teams to optimize database design and query performance

Provide technical support for end users

Proven track record managing SQL Server database applications in production settings Technical Skills/ Primary Skills Sets:

REQUIRED: (those without the following skills will be eliminated from consideration)

Extensive experience with Microsoft SQL Server and the T-SQL programming language required.

Responsibilities include Database Design and Development, Query Optimization, Performance Tuning, and Technical Support.

Familiarity with SQL Server Management Studio (SSMS) required.

Good understanding of database security required.

Experience with SQL Server Integration Services (SSIS) desired.

Experience with C#/.NET and Visual Studio desired.

Strong analytical and problem-solving skills.

Strong communication and documentation skills.

Ref: #851-Rockville-S1

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