Integration tests for AWS lambda

I am looking for an experienced developer to create integration tests for an AWS Lambda function written in Java. The test cases must be created from scratch according to detailed requirements and guidelines that I will provide. The successful applicant will have extensive knowledge of AWS Lambda and other relevant services such as API Gateway and CloudWatch. The applicant should also have an eye for detail to ensure that all tests are comprehensive and accurate. The successful applicant will need to deliver the tests within a stipulated timeframe without compromising on quality. I am looking for an experienced professional to work with me on this project and perform to a high standard.