Senior .NET Developer

About the Project

We’re building a modern SaaS platform for US-based home medical equipment (HME) providers and hospitals.
The product helps teams manage daily operations — from appointment scheduling and invoicing to documentation and medical deliveries — all in one place.
You’ll join a long-term initiative focused on improving healthcare workflows, efficiency, and patient service delivery.

🕓 Work schedule: 5 AM — 1 PM CET

What You’ll Do

You’ll take ownership of backend development, designing and delivering scalable APIs that power our healthcare platform:

• Design, develop, and maintain RESTful APIs and backend microservices with .NET Core (.NET 6 / 8 / 3.1)
• Build efficient, secure, and reusable endpoints for performance and scalability
• Collaborate with frontend, mobile, and DevOps teams to ensure smooth API integration
• Create and maintain API documentation using Swagger / OpenAPI
• Optimize existing endpoints and database queries for faster response times
• Implement versioning, validation, and error-handling best practices
• Secure APIs through JWT and OAuth2 authentication
• Participate in code reviews and support CI/CD processes for API delivery
• Handle a part of ongoing support activities for existing services

Who You Are

We value developers who think structurally, stay flexible, and care about quality.
To succeed in this role, you bring:

• 5+ years in backend software development, with strong focus on REST API design
• Expertise in .NET Core (C#, ASP.NET Core Web API)
• Solid grasp of microservices architecture and inter-service communication
• Hands-on experience with MySQL and/or PostgreSQL, including query optimization
• Strong understanding of OOP, OOD, SOLID, and design patterns
• Familiarity with Swagger, Postman, and API testing/documentation
• Awareness of authentication, authorization, and API security standards
• Experience across the SDLC within Agile / Scrum / Kanban environments
• English: Upper-Intermediate+

Nice to Have

• Experience with Docker and Kubernetes
• Familiarity with AWS ecosystem
• Background in high-load or healthcare-related APIs
• Understanding of Ukrainian or Russian
• Relevant certifications (e.g. AWS Certified Developer)

💬 Want to work on something that truly matters?

Send your CV — we’d love to hear from you.