Senior .NET Backend Engineer - C#, API & Oracle DB

Quantum Technologies. LLC

Richmond (VA)

On-site

USD 90,000 - 130,000

Full time

15 hours ago

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Job summary

Quantum Technologies. LLC in Richmond, VA is seeking a hands-on NET Software Developer to join our application development team. You will contribute across projects, enhance existing systems, integrate with third-party vendors, and participate in modernization efforts.

You should be a strong coder in C#, comfortable with database work, and able to work independently on complex systems and technical discussions.

Qualifications

5+ years of professional experience as a .NET Developer.
Strong proficiency in C# (primary language).
Experience with .NET Framework 4.5+.
Exposure to modern .NET (.NET Core / .NET 6+) is preferred.
Solid experience with Oracle databases, including stored procedures and SQL performance tuning.
Experience developing and consuming APIs.
Comfortable working in database-heavy systems without EF.

Responsibilities

Design, develop, and maintain applications using C# and the Microsoft .NET stack.
.NET Core / modern .NET (preferred).
Develop and support RESTful APIs and system integrations.
Write, analyze, and maintain Oracle SQL and PL/SQL.
Tune and optimize stored procedures and SQL queries for performance.
Collaborate with other developers to understand existing systems and contribute improvements.
Participate in code reviews, testing, debugging, and deployment activities.
Collaborate with internal teams and third-party vendors to support integrations.