Database Design Jobs

Build an example assessment webapp in AWS infrastructure. Goal is to have a demonstration webapp where a series of questions are asked with 5 potential answers for each that need to be ranked. Records need to be read from DynamoDB and results written back. Scores need to be provided for the placement of the answers. User management for registration and login via cognito would be good.

Please see attachment for details of job description.

Please see attachment for details of job description.

Hello, I am currently experiencing some issues with slow queries in my database and everything seems to point in the direction of bad indexing practices . I need someone to implement proper indexation to fix my queries slowness . You need to master concepts such as : - Using EXPLAIN to identify queries behavior - Using explicit column lists - Using covering index that allows the entire quer...

Dear Developer, For our e-commerce business, we are looking for a full time developer to map our IT systems to a visual diagram. Like ERD for example. Or several types of diagrams. The goal mainly is to map the technical It structure in a clear diagram so it will be easy to document, give trainings about, and to do well organized project management for the transfer of our system from Google she...

Draw an EER diagram according to accurately represent the design description below. You can use any tools to draw the EER diagram, indicate all the super classes, subclasses, entity sets, relationship sets, cardinality ratios, participations, attributes, and primary keys. Clearly specify any reasonable assumptions if they are not specified in the design specification.

Tengo una consultoría de turismo y estamos necesitando un software que me pueda colectar en una base de datos los emails de una pauta en FB + IG Algo como Mail Chimp, pero que recoja, generae base de datos y luego se utilice la misma para enviar ofertas