Full stack Developer (Backend-Focused) (.NET Core+ReactTS)

Type: full-time

Experience: 3–5 years

Required skills: .NET Core, C#, ASP.NET Core, React.js, TypeScript, REST API Development, Entity Framework Core, SQL & Database Management, SignalR, WebSockets, Docker, Unit & Integration, Testing, Code Coverage, File Upload & Processing, Third-Party API Integrations, Infobip/Twilio SDKs, Webhooks & FHIR Integrations, HIPAA-Compliant Development, Git & Version Control, GitHub Copilot & AI-Assisted Coding.

About

VisioGen is building the future of AI-powered healthcare by developing human-verified clinical communication solutions for ophthalmology practices. We combine cutting-edge generative AI with clinical expertise to build scalable, production-ready applications that enhance patient engagement and improve healthcare delivery.

We are looking for a full-stack developer, backend-focused, with 3+ years of experience in .NET Core, C#, and modern backend development practices. The candidate should be able to code backend services, work with databases, and build APIs, with preferred experience on the React frontend as well. Hands-on experience with Docker, file upload and handling, network sockets, and SignalR is expected, along with a working understanding of unit testing and code coverage. Comfort using AI-assisted coding tools day to day is a key attribute.

What you'll do

• Design, develop, and maintain backend applications using .NET Core and C#.
• Work with databases and build/maintain REST APIs.
• Develop features involving file upload, processing, and secure file handling.
• Build real-time communication solutions using SignalR and manage network socket programming as required.
• Build integration with WhatsApp, Viber, KakaoTalk, SMS, Email, WeChat, Telegram, FBmessenger, Instagram, Voice, and similar channels using Infobip &/or Twilio SDKs & journeys.
• Build secure and HIPAA-compliant integrations using webhooks, APIs, and FHIR with CRMs, EMRs/EHRs, and bespoke platforms.
• Write unit, integration, and end-to-end tests using frameworks like xUnit, NUnit, or MSTest.
• Implement and monitor code coverage using appropriate tools (e.g., Coverlet, dotCover).
• Containerize applications and services using Docker, ensuring reliable builds and deployments across environments.
• Code and enhance frontend features in React.js/TypeScript as needed.
• Use AI-assisted coding tools (e.g., GitHub Copilot) as part of the regular development workflow, including for SDLC tasks beyond just code generation.
• Proactively debug issues, analyze logs, and perform root cause analysis to resolve bugs or performance bottlenecks.
• Collaborate with front-end developers, QA, DevOps, and product teams for timely and quality delivery.
• Participate in code reviews and follow coding standards and best practices.

What we're looking for

• 3+ years of professional experience in .NET Core and C#.
• Hands-on experience working with databases and building APIs.
• Preferred real experience with React.js and JavaScript/TypeScript.
• Working knowledge of network sockets and SignalR.
• Proficiency in file upload, file I/O, and handling large/binary files.
• Understanding unit testing, integration testing, and code coverage.
• Hands-on experience with Docker.
• Good knowledge of REST APIs, asynchronous programming, and dependency injection.
• Well-versed in using AI tools (e.g., GitHub Copilot) for assistive coding and SDLC tasks.
• Familiar with Git and version control workflows.
• Experience with Entity Framework Core or other ORM tools..
• Experience with Infobip is preferred, along with hands-on integration experience with comparable channel/CPaaS platforms such as Twilio (SMS, WhatsApp, email APIs, and webhooks).
• Experience with CI/CD pipelines.
• Familiarity with cloud platforms like Azure.
• Exposure to message queues such as Azure Service Bus.
• Knowledge of log aggregation and monitoring tools.
• Familiarity with CSS frameworks (Tailwind, Bootstrap) and Vite.
• Familiarity with cloud platforms like Azure.
• Knowledge of log aggregation and monitoring tools.
• Strong communication and collaboration skills.
• A team player who adapts quickly and works well in cross-functional teams.
• Proactive in identifying issues, suggesting solutions, and driving them to closure.
• Committed to quality, ownership, and continuous improvement.
• Bachelor's degree in computer science, information technology, or a related field.