Senior C# / React.js / Azure full-stack developer

US Company seeks Senior C# / React.js / Azure full-stack developers for a complex, enterprise-level SaaS project focused on safety and health insurance solutions for high-risk industries. This is a remote, full-time position with a distributed team working on cutting-edge technologies.

• Full-stack development across desktop clients, backend services, data layer, API development, and user interfaces
• Develop functionality, services, and applications in C# and React.js
• Improve software quality by addressing issues from QA or customers
• Modularize applications and define/implement internal API interfaces
• Refactor modules to address weak spots
• Analyze requirements, suggest concepts, and assess development efforts
• White box testing and unit test development
• Technical system documentation including source code and external documentation
• 3rd-level support

Required:

• Proficiency in C#, React.js, and REST API (at least one skill from each category)
• Fluent English communication
• Availability to cover working hours approximately 14:00-20:00 Kyiv time

Considered a Plus:

• Domain expertise in life-cycle assessment or strong passion for sustainability
• Experience building web/cloud applications
• Azure experience
• Experience with linear algebra problems and tools
• TDD experience
• Delphi knowledge

Remote work with flexible schedule. Distributed team of 5-6 members. Full-time position (40 hours per week). Kanban or Scrum methodology. Official contract including salary, sick leave days, holidays, and vacations.