.NET Developer (Middle/Senior/Principal)

• Work directly with international clients to clarify business and technical requirements, propose solutions, and provide technical consultancy.
• Take a senior/principal role in application architecture design, technology selection, and system-level decisions.
• Design, develop, and optimize high-performance Web Applications and RESTful APIs for enterprise-scale systems.
• Lead and review implementation to ensure high code quality, scalability, security, and maintainability.
• Adhere to project coding standards and proactively recommend improvements to architecture, performance, and development practices.
• Collaborate in a team environment with shared codebase; enforce disciplined use of source code control, CI/CD, and documentation.
• Analyze and solve complex technical and performance problems in production and non-production environments.
• Mentor junior and mid-level engineers; promote best practices and continuous improvement.
• Actively use AI-assisted development tools (e.g., GitHub Copilot, Cursor, Claude Code, AI code analyzers, testing tools) to improve development efficiency, code quality, and problem-solving.
• Participate in system optimization, performance tuning, and reliability improvement initiatives.

Mandatory Skills & Experience

• 4+ years of experience in .NET development; senior or principal-level hands-on expertise.
• Strong experience in Web Applications & RESTful APIs, including SPA integration.
• Solid knowledge of:
  • MVC 5, Web API 2.2
  • Entity Framework
  • .NET Core 2.0+, Entity Framework Core 2+
• Strong SQL skills with SQL Server 2012+ (query optimization, indexing, transactions).
• Strong understanding and practical application of SOLID principles, Dependency Injection, and clean architecture.
• Experience working in large codebases with source control (Git), code reviews, and documented development processes.
• Very strong English communication skills (verbal and written), able to discuss requirements, architecture, and solutions confidently with clients.
• Excellent analytical thinking and problem-solving skills.

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Nice to Have

• Experience with financial systems, especially Loan Management, Credit, or Banking domains.
• Hands-on experience with Microsoft Azure and/or AWS (deployment, monitoring, cloud services).
• Knowledge of algorithms and data structures with practical application.
• Experience with performance optimization, scalability, and high-availability systems.
• Familiarity with AI-powered development tools for:
  • Code generation and refactoring
  • Debugging and performance analysis
  • Automated testing and documentation
• Strong teamwork skills; ability to lead, motivate, and generate enthusiasm within engineering teams.
• Experience working with WCF (Windows Communication Foundation) services, including maintenance or migration of legacy systems.