Windows GUI Software Contractor

Back Windows GUI Software Contractor .Net Developer Burlington , Massachusetts Temp Per Hour Apr 29, 2026 $50.00 - $70.00

Location:

Hybrid/Onsite 3 days min -

Burlington, MA Duration:

6 month Contract Client is seeking a hands-on Software Engineer to join their team as an onsite contractor to support a critical Win Tablet application used in a hardware-integrated medical device. This role is highly execution-focused and ideal for someone who can jump in quickly, take ownership, and help stabilize and enhance a complex C# Windows application under active development. Key Responsibilities Develop, enhance, and maintain a C# Windows desktop application (currently WinForms) Implement and refine user interface components, including graphing, waveform display, and high-performance visual updates Diagnose and resolve performance issues in a multithreaded C# application (e.g., UI responsiveness, data jitter, throughput bottlenecks) Work with real hardware (tablets/controllers), not just simulated environments; debug software/hardware integration issues Collaborate closely with cross-functional engineers in a team environment Follow all established development, design, and documentation procedures Write and maintain unit tests; help evaluate and improve testing strategies Support near-term product milestones with a focus on reliability, compatibility, and performance Required Qualifications Strong professional experience with C# in Windows-based applications Experience with WinForms and/or WPF (or similar Windows UI frameworks); comfort working in Visual Studio designer tools Solid understanding of multithreaded C# applications Proven ability to diagnose and fix performance issues (profiling, identifying hotspots, bottlenecks, and practical limits of Windows applications) Familiarity with .NET 10 or newer .NET runtimes Familiarity with NuGet packages and dependency management in Visual Studio Experience with GitHub Actions and CI/CD workflows Comfortable working onsite with hardware-integrated systems (tablets, controllers, embedded-adjacent environments) Ability to take initiative while also asking questions when requirements are unclear Strong communication skills and good documentation habits Willing and able to work onsite in Burlington, MA due to equipment and hardware needs Acts as a strong team player who takes ownership and follows through Available to start quickly and ramp up fast Nice-to-Have Skills Working knowledge of C++/C Experience working on medical device or other regulated environment Experience with modern Windows UI toolkits beyond traditional WinForms Background in web or cloud technologies (useful longer-term, not required initially) Experience working on systems involving waveform data, high-rate sampling, or real-time-ish data flows

Pay Range:

$50-$65/hr #

LI-JD1 ATG456

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