Senior .NET Architect | Data Integration & Legacy Systems

B; North Charleston (SC); On-site; USD 110,000 - 150,000; Full time

Benefits offered by this job

100% premium paid medical plan

Paid time off

Tuition assistance

Mentorship and training opportunities

Job summary

B&A in North Charleston, SC is seeking an experienced .NET Systems Architect/Developer to support a federal program within a legacy environment and drive ongoing enhancements. The role focuses on stabilizing existing systems while enabling data integration and architecture improvements.

You will work with .NET/C#, Visual Studio, and SQL databases, tackle deployment challenges, support ETL processes, and collaborate with federal staff, vendors, and internal teams to ensure continuity and

Qualifications

• Bachelor’s degree in Computer Science, Information Systems, Engineering, or equivalent.
• 5–8+ years of software development and/or system architecture experience.
• Strong experience with .NET Framework / .NET Core and C#.
• Familiar with COBOL or mainframe environments.
• Experience with data integration and ETL processes.
• Experience with design of data movement and system integration.
• Active Top Secret clearance or ability to obtain.

Responsibilities

• Support development and maintenance of .NET/C# applications within a legacy system environment using Microsoft Visual Studio.
• Assist with establishing and stabilizing development and production environments, including coordination with stakeholders to address setup, configuration, and deployment challenges.
• Design and implement data movement and integration solutions across diverse platforms (legacy systems, databases, and modern tools).
• Analyze existing systems (including COBOL or mainframe components) and recommend practical enhancements to improve performance, reliability, and maintainability.
• Support data modeling and ETL processes to ensure consistent and reliable data flow.
• Collaborate with federal staff, vendors, and internal teams to support continuity of operations and technical alignment.
• Contribute to system and network architecture discussions, including connectivity and performance considerations.
• Support evaluation and application of modern tools and technologies, where appropriate, to enhance data processing and analytics capabilities.
• Identify opportunities to improve efficiency and scalability within existing system constraints.
• Assist with documentation, knowledge transfer, and system continuity efforts.

Skills

.NET / C#

Visual Studio

SQL Server

Data integration / ETL

Legacy COBOL

System architecture

Communication skills

Education

Bachelor's degree in Computer Science / Information Systems / Engineering

5–8+ years of software development / architecture

Tools

Microsoft Visual Studio

Oracle DB

MS SQL Server

COBOL debugging tools

Job description

B&A in North Charleston, SC is seeking an experienced .NET Systems Architect/Developer to support a federal program within a legacy environment and drive ongoing enhancements. The role focuses on stabilizing existing systems while enabling data integration and architecture improvements.

You will work with .NET/C#, Visual Studio, and SQL databases, tackle deployment challenges, support ETL processes, and collaborate with federal staff, vendors, and internal teams to ensure continuity and