We are looking for a Senior .NET Developer who thrives in a microservices environment and is passionate about clean architecture, performance, and payment technology-while leveraging AI to accelerate end-to-end software delivery.
Role Overview
As a Senior .NET Developer, you will design, build, and maintain core backend services powering Client's payment platform.
You will collaborate closely with architects, product managers, and cross-functional teams to deliver reliable, secure, and high-performance APIs and microservices. You will leverage AI-driven tools and practices across the full software development lifecycle (SDLC)-from requirements analysis and architecture design to development, testing, deployment, and production optimization.
Key Responsibilities
- Design and develop robust RESTful and gRPC APIs using ASP.NET Core (.NET 8 / .NET 9)
- Build and maintain event-driven microservices deployed on Azure Kubernetes Service (AKS)
- Implement CQRS and Domain-Driven Design (DDD) patterns across core payment services
- Integrate with payment gateways, banking APIs, and third-party financial services
- Ensure PCI-DSS compliance and follow OWASP security best practices
- Write high-quality unit, integration, and contract tests
- Optimize SQL queries and Entity Framework Core performance for high throughput
- Work within CI/CD pipelines using Azure DevOps and GitHub Actions
- Conduct code reviews and mentor developers
AI-Driven SDLC & Solution Engineering
- Leverage AI tools (GitHub Copilot, Azure OpenAI) to accelerate development, debugging, and documentation
- Apply AI across the SDLC, including requirements refinement, architecture design, and automated solution generation
- Use AI for code generation, refactoring, and performance optimization while maintaining security and scalability standards
- Implement AI-driven testing (automated test case generation, synthetic data, and defect detection)
- Build AI-enabled backend services (semantic search, conversational APIs, document intelligence)
- Use AI for system observability, anomaly detection, and production incident analysis
- Drive end-to-end AI-assisted solution development-from ideation through deployment and continuous improvement
Required Qualifications
AI & Intelligent Systems
- Experience leveraging AI across the full SDLC (design, build, test, deploy, operate)
- Hands-on experience integrating AI/ML capabilities into .NET applications and microservices
- Familiarity with Azure AI services (Azure OpenAI, Cognitive Services, ML.NET, Semantic Kernel)
- Understanding of prompt engineering, embeddings, and AI-driven architecture patterns
- Experience using AI to improve developer productivity, automate testing, and enhance system observability
Core .NET Skills
- 6+ years of professional software development experience
- 4+ years hands-on with C# / .NET Core
- Expertise in ASP.NET Core Web API
- Strong understanding of async programming, LINQ, and .NET runtime
- Experience with Entity Framework Core and Dapper
Architecture & Patterns
- Experience building microservices or distributed systems
- Knowledge of CQRS, Event Sourcing
- Familiarity with Domain-Driven Design (DDD)
- Experience with API Gateway patterns (Azure API Management, Ocelot)
- Understanding of event-driven architecture (Azure Service Bus, RabbitMQ, Kafka)
