Senior Full Stack Developer .NET

Experience Level: Senior

About the Role

We are looking for a Senior Full Stack Developer to join a leading fintech development team and help build and enhance our core products using .NET and web technologies.

The ideal candidate is a motivated engineer with strong learning abilities, a passion for clean, maintainable code, and full ownership over end-to-end delivery. You will work in a fast-paced Agile environment, collaborate with cross-functional teams, and contribute to architectural and technical decisions.

Responsibilities

• Design, develop, and maintain backend services using .NET (C#, .NET Framework and newer .NET versions)
• Build and optimize scalable backend services and RESTful APIs
• Develop and maintain web applications using HTML, CSS, and JavaScript/TypeScript
• Write clean, maintainable, and testable code following SOLID principles and modern architectural standards
• Develop and maintain unit and integration tests to ensure code reliability
• Participate in architectural reviews, code reviews, and technical planning
• Write efficient SQL queries and work with relational databases
• Debug, troubleshoot, and resolve issues across development, staging, and production environments
• Collaborate closely with Product, QA, and DevOps teams in an Agile/Scrum environment
• Mentor junior developers and actively participate in knowledge sharing

Requirements

• 4+ years of hands-on development experience with .NET (C#, .NET Framework and newer .NET versions)
• Experience building backend services and RESTful APIs
• Solid knowledge of web technologies: HTML, CSS, JavaScript, and TypeScript
• Experience with Entity Framework / EF Core
• Solid knowledge of relational databases (e.g., SQL Server, PostgreSQL)
• Familiarity with Git, CI/CD pipelines, and automated deployments
• Experience working in Agile/Scrum development environments
• Strong collaboration skills and a team-oriented mindset
• Excellent communication skills in English, both verbal and written

Nice to Have

• Hands-on experience with React
• Experience with Node.js for backend services or integrations
• Experience with cloud platforms such as Azure or AWS
• Familiarity with Docker and containerized environments
• Knowledge of SignalR, gRPC, or GraphQL
• Experience with monitoring and logging tools such as Application Insights, OpenSearch, Kibana, or Sentry
• Hands-on experience with automated testing frameworks (e.g., xUnit, NUnit)
• B.Sc. in Computer Science, Software Engineering, or a related technical field