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Urgent! Middle/Senior Back-End.NET (C#, ASP.NET Core) developer (contract work) - Local Job Opening in Lviv

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



Job description

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: payment system for salaries
Client’s location: MENA
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.


Required Skill Profession

Computer Occupations



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