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.

Benefits

We provide the opportunity to participate in impactful and technically rigorous industrial data projects that drive innovation and professional growth. Our work environment emphasizes technical excellence, collaboration, and continuous innovation.

Niuro supports a 100% remote work model, allowing flexibility in work location globally. We invest in career development through ongoing training programs and leadership opportunities, ensuring continuous growth and success.

Upon successful completion of the initial contract, there is potential for long-term collaboration and stable, full-time employment, reflecting our long-term commitment to our team members.

Joining Niuro means becoming part of a global community dedicated to technological excellence and benefiting from a strong administrative support infrastructure that enables you to focus on impactful work without distraction.

Nice to Have

• Microservices
• Apache Kafka
• AWS SQS
• AWS SNS
• Model Context Protocol

This senior role centers on leading a high-impact backend migration from legacy .NET systems to a modern .NET 8+ architecture. Working within a dynamic, fast-paced environment, you will collaborate closely with technical leadership to rewrite the backend from scratch, leveraging Clean Architecture, CQRS, and advanced AI-assisted development tools. This position demands a macro-level architectural vision, hands-on AWS deployment experience, and the ability to proactively manage technical trade-offs while collaborating with backend, frontend, and AI specialists.