First seen by Alion on Sep 28, 2026.
Position Description:
Client is seeking a skilled Full Stack Windows Application Developer to maintain and develop a Windows desktop application used for monitored emergency lighting systems.
This role focuses on maintaining a legacy Windows application, ensuring long-term reliability, compatibility with new Microsoft Windows and Visual Studio releases, supporting ongoing functional updates, documentation, and customer-requested modifications.
The position involves working with legacy code, hardware-integrated systems, and structured databases while adhering to high standards of quality and reliability.
Responsibilities:
- Maintain and develop a legacy Windows desktop application and its modules.
- Compile, update, and support legacy source code using the latest Microsoft Visual Studio versions.
- Ensure application compatibility with new Microsoft Windows releases.
- Diagnose and resolve software defects and stability issues and implement enhancements and functional modifications in line with project requirements.
- Maintain and update technical documentation and code comments.
- Follow project priorities and report progress to the Team Leader.
- Participate in team meetings and agile development cycles.
Required Skills and qualifications:
- Bachelor's degree in software engineering or Computer Science.
- Minimum 5+ years of professional software development experience.
- Fluent in English (written and spoken).
- Strong experience in C++ for native Windows development.
- Solid knowledge of Win32 API and MFC.
- Experience using Microsoft Visual Studio and MSBuild.
- Experience in maintaining and enhancing existing/legacy Windows applications.
- Understanding of hardware-interfacing or system-level software.
- Strong problem-solving and debugging skills.
- Good communication, reporting, and time-management skills.
Preferred Skills:
- Experience using TDD (Test-Driven Development) methodologies.
- Experience with Azure DevOps tools.
- Experience with databases or structured data storage.
- A customer-oriented approach with knowledge of UX/UI principles.
- Experience upgrading applications to support newer Windows or Microsoft Visual Studio versions.
- Strong customer-focused mindset with attention to usability.
Skills
C++, Win32, MFC, Visual Studio, TDD, Full Stack, Windows Applications, Legacy Modernization

