Senior Back-End .NET (C#, ASP.NET Core) developer (contract work)

Please note, this position is for one project, not an in-house position, so the social package, including benefits like sick leave, public holidays, days off, vacations, accounting and necessary equipment provision, is not covered by Selecto.

About The Platform

• Domain: Fintech
• Project: Digital platform in Saudi Arabia that helps users find and compare mortgage financing options.
• Client’s location: the Kingdom of Saudi Arabia, with a highly experienced team.
• Timeline of cooperation: 3+ months with high possibility of prolongation.
• Working hours: approximately from 9-10 am Kyiv time.

Role Overview: 
The Backend Engineer will be responsible for designing, building, and maintaining scalable backend systems to power the firm’s fintech infrastructure. The role involves building APIs, managing databases, and deploying cloud-native applications, with a hands-on approach to development and experimentation. 

Key Responsibilities:

• Develop and maintain backend services using .NET (C#, ASP.NET Core) and Entity Framework Core 
• Design and document robust RESTful APIs (including versioning and Swagger/OpenAPI) 
• Write and maintain unit and integration tests 
• Follow best practices in version control (Git) and secure, scalable development 
• Collaborate closely with product and investment teams to align tech with business needs 

Ideal Candidate Profile:

• 4.5+ years of experience in backend development or a strong technical portfolio.
• Proficiency in .NET, PostgreSQL, and cloud-native environments. 
• Basic understanding of Docker, AWS, and CI/CD workflows.
• Experience in fintech domain. 
• Passion for AI technologies and an eagerness to experiment and apply them in production. 
• Strong understanding of software development best practices, including testing and security. 
• Startup mindset with the ability to work in fast-paced, dynamic environments.