Senior .Net Developer

AVER, LLC; Washington (District of Columbia); On-site; USD 120,000 - 150,000; Full time

Job summary

AVER, LLC seeks a Senior .Net Developer to support a controlled government environment. You will analyze provider data, prepare it for SQL Server import, and develop C# Windows Services to load approved data into the database. Work with CSV, Excel, HTML, and other formats and provide technical direction to other developers.

Requirements include 8+ years of tech analysis with C#, .NET 4.8, SQL Server, and Windows Services. Local candidates in Washington, DC area on-site 5 days a week preferred.

Qualifications

• Bachelor’s degree in CS/IT or equivalent practical technical experience.
• 8+ years of technical analysis experience with 3–5 years of software development, SQL or data processing experience preferred.
• Experience with C#, .NET Framework 4.8, Visual Studio, SQL Server, SSMS, Windows Services and NuGet.
• Working knowledge of Microsoft .NET Framework and SQL/T-SQL.
• Ability to create and modify SQL Server tables and determine appropriate SQL data types.

Responsibilities

• Analyze incoming provider files to determine structure, fields, data types, and relationships.
• Identify data-quality or structural issues requiring clarification.
• Convert source data into the required CSV format.
• Develop proposed SQL Server table structures for client review and approval.
• Configure and modify C# Windows Services to process approved CSV files.
• Bulk load data into SQL Server tables and validate results.
• Ensure consistency across services, documentation, and development practices.

Skills

C#

SQL

Data analysis

Windows Services

Problem-solving

Education

Bachelor’s degree in Computer Science / Information Technology or equivalent

Tools

Microsoft SQL Server

SQL Server Management Studio

Microsoft Visual Studio

NuGet packages

.NET Framework 4.8

Windows Server

Job description

AVER is seeking a Senior .Net Developer to support a highly controlled and security-sensitive government environment. The position focuses on analyzing incoming provider data, preparing the data for import into SQL Server, and overseeing a repeatable process for developing C# Windows Services that load approved data into the database. Incoming data may be provided in a variety of formats, including CSV, Microsoft Excel (XLS/XLSX), HTML, and other structured or semi-structured formats. Excel workbooks may contain multiple worksheets with different structures. The successful candidate does not need extensive experience with cloud platforms, modern web development, or complex application architecture. Strong analytical and problem-solving abilities, working knowledge of C# and SQL, attention to detail, and the ability to provide technical direction to other developers.

Responsibilities

• Analyze incoming provider files and determine their structure, fields, data types, and relationships.
• Identify potential data-quality or structural issues requiring clarification.
• Determine how source data should be converted into the client’s required CSV format.
• Convert Excel, HTML, and other supported source data into the required CSV format.
• Develop proposed SQL Server table structures for client review and approval.
• Review incoming provider data files and understand their basic structure.
• Examine columns, sample values, data types, and potential data-quality issues.
• Create approved SQL Server table and ensure they are created according to approved designs.
• Use an established .NET Framework 4.8 Windows Service as the template for new data-loading services.
• Configure and modify C# services to process approved CSV files and bulk load data into SQL Server
• Configure services to bulk load CSV data into designated SQL Server tables
• Validate source data, converted CSV files, and database results
• Handle more complex or unusual provider datasets and troubleshooting difficult issues
• Maintain consistency across services, database structures, documentation, and development practices
• Ensure developers follow established client procedures and technology restrictions
• Work within the approved architecture rather than introducing unnecessary technologies or redesigning established processes

Education Requirements

• Bachelor’s degree in Computer Science, Information Technology, Information Systems, or a related field or equivalent practical technical experience, subject to contractual requirements

Experience Requirements

• Senior Application Developer with 8+ years of technical analysis experience with 3–5 years of relevant software development, SQL, or data-processing experience preferred, but demonstrated ability is more important than a specific number of years
• Experience with C#, .NET Framework 4.8, Microsoft Visual Studio, Microsoft SQL Server, SQL Server Management Studio, Windows Services, Windows Server, Client-approved libraries and NuGet packages
• Working knowledge of Microsoft .NET Framework
• Working knowledge of SQL/T-SQL
• Ability to create and modify SQL Server tables
• Ability to determine appropriate SQL data types from source data
• Experience working with CSV, Excel, or other structured data files
• Strong data-analysis and problem-solving skills
• Ability to identify data inconsistencies and know when additional clarification is required
• Ability to troubleshoot basic application and data-loading issues
• Ability to review another developer’s work and provide clear technical guidance
• Knowledge of Public cloud services and common external development platforms are not part of the development process. Developers must work within the tools, architecture, and procedures approved by the client.
• Strong attention to detail and ability to follow established procedures

Desired Requirements

• C# Windows Services
• Exposure to ETL or data-integration processes
• Microsoft SQL Server and SQL Server Management Studio
• SQL bulk-loading techniques
• Microsoft Excel data processing
• Experience converting XLS/XLSX or other source formats into CSV
• Experience with Windows Server
• Experience working in restricted, government, defense, or controlled technical environments

Location

• Washington, DC
• On site 5 days a week

Security Requirements

• U.S. Citizen
• Must be able to obtain and maintain a Public Trust clearance

About Us

AVER, LLC is a Data & Digital Transformation company that delivers exceptional client service with great people and transformative technology solutions to enable Government mission success. We provide customers with specialized technical skills and deep subject matter expertise focused on Homeland Security, Biometrics, Law Enforcement, and Healthcare domains to meet the complex mission challenges of today and tomorrow. AVER is a verified Service-Disabled Veteran-Owned Small Business (SDVOSB) that strives to provide a customer-centric experience while building trusted partnerships with our clients and people.

AVER is an Equal Opportunity Employer/Veterans/Disabled