Senior Software Engineer, Financial Marketplace

Wellfit

Senior Software Engineer at Wellfit developing and integrating payment systems and APIs for the dental industry's fintech solutions. Collaborating with cross-functional teams to enhance user experiences by removing financial barriers to care.

Posted 4/28/2026full-timeIrving • Texas • 🇺🇸 United StatesSenior💰 $130,000 - $150,000 per yearWebsite

Tech Stack

Tools & technologies

ASP.NETAWSAzureCloudGoogle Cloud PlatformMicroservices.NETSQL

About the role

Key responsibilities & impact

Contribute to the development and integration of unified APIs with partners such as Sika and Next Health.
Evaluate API documentation and third-party systems to ensure compatibility and seamless integration with our platforms.
Build and maintain sandboxes and test environments, working closely with DevOps to streamline processes.
Develop full-stack web applications and services using ASP.NET, .NET Framework, C#, and SQL.
Implement best practices in software development, including TDD, BDD, and CI/CD.
Research, prototype, and test new technologies that enhance system performance and scalability.
Collaborate with product managers, designers, and other engineers to deliver high-quality solutions that align with business goals.

Requirements

What you’ll need

BS degree in Computer Science, Electrical Engineering, or a related field (or equivalent practical experience).
5–7 years of experience in full-stack development with ASP.NET, .NET Framework, C#, and SQL.
Solid foundation in data structures, algorithms, and software design.
Experience with Cloud APIs, Web Services, and source control tools (GIT preferred).
Hands-on experience with at least one major cloud platform (AWS, Azure, or GCP).
Familiarity with microservices architecture, DevOps practices, and CI/CD pipelines.
Exposure to Domain Driven Design and framework development is a plus.

Benefits

Comp & perks

Hybrid working model – 3 days on-site, 2 days remote
Medical, Dental, and Vision coverage
Unlimited Paid Time Off (with a culture that encourages use)
401k matching up to 4%

ATS Keywords

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Hard Skills & Tools

ASP.NET.NET FrameworkC#SQLTDDBDDCI/CDCloud APIsWeb Servicesmicroservices architecture

Soft Skills

collaborationproblem-solvingcommunicationadaptabilityteamwork

Certifications

BS degree in Computer ScienceBS degree in Electrical Engineering