Software Architect (.NET Core)

Job Summary:

We are looking for a hands-on .NET Core Backend Architect to design and own the architecture of scalable, high-performance backend systems and RESTful APIs. You will set technical direction, lead the modernization of legacy .NET Framework applications, and mentor engineers on a product used at scale.

Key Responsibilities:

• Design and own scalable backend architecture using .NET Core / .NET 8+.
• Define API standards, versioning, and contracts for high-performance RESTful APIs.
• Design microservices and distributed systems that are secure, reliable, and fault-tolerant.
• Lead the migration of legacy .NET Framework applications to modern .NET.
• Optimize application performance, concurrency, memory usage, and database operations.
• Define caching, messaging, and event-driven architecture strategies.
• Conduct architecture and code reviews, set engineering standards, and mentor developers.

Required Skills:

• Strong C# and .NET 8+ expertise: CLR, garbage collection, async/await, multithreading, and thread pool management.
• Deep understanding of HTTP/1.1, HTTP/2, HTTP/3, TCP, TLS, connection pooling, and API internals.
• Proven experience designing microservices and distributed systems.
• Expertise in SQL Server and MongoDB: schema design, indexing, and query optimization.
• Solid grasp of SOLID principles, design patterns, Clean Architecture, and dependency injection.
• Experience with Redis and a message broker (Azure Service Bus, RabbitMQ, or Kafka) in event-driven systems.
• Strong API security knowledge: OAuth 2.0, JWT, OpenID Connect, and OWASP practices.
• Experience with Saga pattern, idempotency, retries, and distributed transactions.
• Strong troubleshooting, system design, and technical leadership skills.

Good to Have:

• Azure services (Functions, Service Bus), Docker, and Kubernetes.
• OpenTelemetry, distributed tracing, and Application Insights.
• gRPC, GraphQL, and WebSockets.
• PCI DSS and payment integration experience.
• Experience modernizing large-scale enterprise applications.

Skills

.NET, .NET Core, APIs, ASP.NET Core, C#, Distributed Systems, Kafka, Microservices, MongoDB, REST, RabbitMQ, Redis, SQL Server