Lead .NET Developer with AWS expertise
We are seeking a Lead .NET Developer with strong AWS expertise to drive the modernization of legacy applications into cloud-native, high-performance solutions. In this role, you will leverage AI-powered tools and AWS best practices to design scalable microservices, migrate legacy systems and ensure seamless database compatibility, while collaborating across teams to deliver robust and maintainable software. Responsibilities Leverage Kiro and Amazon Transform to accelerate code analysis, refactoring and migration tasks; validate and optimize tool-generated outputs Design and develop high-performance, scalable applications using .NET Core with a microservices architecture Migrate and refactor legacy .NET Framework (Windows) applications to .NET Core (Linux), ensuring functional parity and improved performance Modify and optimize application code and stored procedures to ensure compatibility with PostgreSQL / Aurora PostgreSQL, following AWS development standards Implement unit tests and performance tests to ensure application stability, responsiveness and production readiness Partner with database engineers to ensure seamless integration between application code and PostgreSQL Collaborate closely with AWS ProServe consultants on validation and optimization activities Apply AWS Well-Architected Framework principles across security, reliability, performance efficiency and operational excellence Document key findings, migration strategies, code conversion patterns and technical validation results for long-term maintainability and knowledge transfer Requirements 5+ years of expert-level proficiency in C# / .NET Core and advanced experience with .NET Framework Advanced expertise in AWS native development Background in microservices architecture Proven skills in .NET Legacy (Windows) to .NET Core (Linux) modernization Advanced proficiency in SQL Server, PostgreSQL and Amazon Aurora PostgreSQL Expertise in stored procedure migration (T-SQL → PL/pgSQL) Competency in unit and performance testing English communication skills with overlap with the US EST time zone Nice to have Familiarity with Kiro and Amazon Transform Knowledge of AWS DMS / SCT Understanding of Docker and containerization on AWS, including Amazon ECS / EKS Skills in CI/CD pipelines (GitHub Actions, CodePipeline)