> Markdown version of [/jobs/ext/3951319-senior-software-engineer-c](https://www.wearedevelopers.com/jobs/ext/3951319-senior-software-engineer-c). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer C# - **Company:** System One - **Location:** Merrifield, VA, United States (Remote available) - **Experience:** Expert - **Salary:** $105,000.0 - $120,000.0 - **Contract:** Permanent contract - **Skills:** Testing (Software), Clean Code Principles, C (Programming Language), .NET Framework, Agile Methodology, Application Integration Architecture, C Sharp (Programming Language), C++ (Programming Language), Software Quality, Code Review, Continuous Integration, Software Debugging, Software Design Patterns, Github, Microsoft Visual Studio, Microsoft Software, Performance Tuning, Scrum Methodology, Software Architecture, Software Maintenance, Software Engineering, Software Systems, Enterprise Software Applications, Software Application Programming, Information Technology, Software Version Control, Jenkins - **Published:** October 27, 2026 - **Apply:** https://www.careerbuilder.com/job-details/senior-software-engineer-c-merrifield-va--ab117963-e2bb-4bbf-aa8f-0a83d5c681fb ## About the Role Software Engineering, Microsoft C# (C Sharp), Software Engineering, Microsoft C# (C Sharp), C++ Programming Language, C Programming Language, United States Citizen, Technical Leadership, Mentoring, Team Player, We are seeking an experienced Senior Software Engineer to provide technical leadership and drive the design, development, and delivery of mission-critical software solutions. The ideal candidate will possess advanced software engineering expertise, strong development skills, and the ability to mentor team members while contributing hands-on to complex technical initiatives., * Bachelor's or Master's degree in Computer Science, Software Development, or a related technical field from an accredited university. * 7+ years of professional software development experience. Experience developing applications using C# and the Microsoft .NET ecosystem. Experience with C/C++ is preferred. * Advanced proficiency in C, C++, and/or C#. * Extensive experience with Microsoft Visual Studio. * Strong knowledge of CI/CD tools and processes, including Jenkins. * Experience with GitHub and modern software development workflows. * Familiarity with enterprise environments and EBS platforms or similar systems. * Strong understanding of software architecture, design patterns, and development best practices. * Demonstrated ability to lead technical initiatives and mentor development teams. * Excellent analytical, troubleshooting, and communication skills. Preferred Qualifications * Experience serving as a technical lead on software development projects. * Agile/Scrum certification or extensive Agile experience. * Expertise in software testing, automation, and debugging methodologies. * Experience integrating applications with enterprise-level platforms and systems. * Experience supporting large-scale, mission-critical software environments. ## Description * Lead the design, development, testing, deployment, and maintenance of software applications. * Develop high-quality, scalable solutions using C, C++, and/or C#. * Utilize Microsoft Visual Studio for architecture, development, debugging, and deployment activities. * Collaborate with stakeholders, architects, and development teams to define technical requirements and solutions. * Mentor junior and mid-level engineers through code reviews, technical guidance, and best practices. * Drive software quality through testing, debugging, performance tuning, and continuous improvement efforts. * Support and enhance CI/CD pipelines using Jenkins and related tools. * Manage source code and development workflows utilizing GitHub and version control best practices. * Integrate applications with enterprise systems and ensure adherence to software engineering standards.