Senior Software Engineer - TS/SCI Clearance, C#/NET

B4Corp; Herndon (VA); On-site; USD 212,000 - 259,000; Full time

Benefits offered by this job

401k with employer match

Phantom stock

PTO 7 weeks

Flexible schedule

Job summary

B4Corp in Herndon, VA seeks a Senior Software Developer to design, develop, maintain, and support enterprise software in a Windows environment. The team mainly uses C# and .NET, with strong Java or other OO language experience encouraged. You will become productive in C# within a few months.

Role requires a TS/SCI clearance with a polygraph. Responsibilities include designing, developing, testing, deploying, and maintaining enterprise applications, reviewing code, and collaborating with

Qualifications

• Minimum 6+ years of professional software development experience.
• Bachelor’s degree in a related technical field or equivalent professional experience.
• Strong proficiency in an object‑oriented programming language such as C#, Java, Kotlin, or C++.
• Strong understanding of object‑oriented design, data structures, algorithms, and common software design patterns.
• Experience developing and supporting business or enterprise applications.
• Experience with source control, code reviews, testing, debugging, and the Software Development Lifecycle.
• Experience working with relational databases, web services, or application integrations.
• Ability to learn new programming languages, frameworks, and systems.
• Strong problem-solving and communication skills.

Responsibilities

• Design, develop, test, deploy, and maintain enterprise applications and services.
• Develop readable, maintainable, and secure software.
• Troubleshoot application defects and production issues.
• Review code and contribute to technical design decisions.
• Work with customers and team members to clarify requirements.
• Maintain technical documentation.
• Participate in planning, code reviews, testing, and software releases.
• Support and improve existing applications, including legacy systems.

Skills

C#

Java

Kotlin

C++

Education

Bachelor’s degree in a related technical field

Tools

PowerShell

Job description

B4Corp in Herndon, VA seeks a Senior Software Developer to design, develop, maintain, and support enterprise software in a Windows environment. The team mainly uses C# and .NET, with strong Java or other OO language experience encouraged. You will become productive in C# within a few months.

Role requires a TS/SCI clearance with a polygraph. Responsibilities include designing, developing, testing, deploying, and maintaining enterprise applications, reviewing code, and collaborating with