• Develop backend services using .NET Core/8, C#, gRPC, and REST. • Write unit tests and API tests for APIs • Build and maintain responsive, high-quality frontends in Angular (TypeScript, RxJS, NgRx). • Create and maintain Playwright UI test suites to ensure application reliability. • Implement secure authentication flows including multi-factor authentication. • Integrate with payment gateways, APIs, and cloud-based services. • Work with PostgreSQL and SQL Server for data modeling, optimization, and migration. • Deploy and operate services in AWS (ElasticSearch, Redis, Lambda, S3). • Apply clean architecture and design patterns for maintainability.