Senior Back-end Engineer (.NET Modernization & Architecture)

Experience and Skills • 6+ years of experience in software engineering, with at least 5 years dedicated to backend development using .NET and C# • C1 English level or higher • Proven experience leading large-scale migrations from legacy .NET Framework to .NET Core or .NET 8+ • Strong production experience with Clean Architecture, CQRS, and MediatR • Hands-on experience with AWS services, specifically ECS Fargate and RDS • Proficiency in MySQL, using both Dapper for high-performance queries and Entity Framework Core for domain modeling • Active experience utilizing AI development tools, such as Claude Code or similar, to accelerate development and testing • Hands-on experience with AWS ECS Fargate. Skills • .NET • .NET 8 • Clean Architecture • CQRS • MediatR • AWS • AWS ECS Fargate • AWS RDS • MySQL • Dapper • Entity Framework Core • Claude Code

Key Responsibilities • Design and lead the backend architecture using .NET 8+ under Clean Architecture and CQRS patterns. • Define secure API contracts with frontend teams and implement reliable integrations with payment providers. • Optimize database access using Dapper for critical queries and EF Core for domain logic. • Make macro-level architectural decisions, evaluating and clearly communicating technical trade-offs to stakeholders. • Collaborate through close pair programming with backend peers and coordinate regularly with frontend and AI team members. • Leverage AI tools responsibly to accelerate development cycles while maintaining rigorous human code review and testing standards. • Proactively identify and communicate timeline or scope risks during daily syncs and adapt plans accordingly. • Manage deployments and environment-specific pipelines across AWS ECS Fargate and RDS.

Nice to Have • Microservices • Apache Kafka • AWS SQS • AWS SNS • Model Context Protocol