Worked on backend development and configuration management within the aws/aws-lambda-dotnet repository, focusing on enhancing the reliability of Lambda environment configuration. Addressed a bug in the LambdaDefaultsConfigFileParser by refining its logic to correctly parse nested Environment variables from YAML files, ensuring all key-value pairs are accurately applied to Lambda function environments. This C#-based solution reduced deployment risks associated with misconfiguration and improved runtime consistency for Lambda functions. The work demonstrated attention to detail in configuration parsing and contributed to more predictable deployments, leveraging skills in backend systems and configuration management to resolve a nuanced issue affecting environment variable handling.