Backend Software Developer - 21581 Outstaffing

Team Size: 5 developers

Project Role: Java Developer,

Stack: Java, Liquibase, SpringDoc, OpenAPI UI, business model management

Project Description:Health care system

Tasks Performed:

Resource accesssupport based on a role matrix

Implementation of MapStructwith nested objects and validation of transferred fields

Implementation and support of SpringDoc OpenAPI UI in the project

Management of business modelcreation and updating and report generation based on available data

Team Size: Developers 4;

Project Role: Regular Java Developer, Liquibase, Swagger, enriching process

Project Description: Iwork simultaneously on 2 projects- an auction managementsystem and a fraud detection

system for a large European bank.

Tasks Performed:

- Implemented authentication

- Integrated JWT technology

- Custom JWT validationwith filters, providers, and handlers of result

- Configured LDAP(Active Directory)

- Customized/Universalized exception hendling

- Support for Liquidbase migrations using the XML standardwith a description of rollbacks and static filling of

tableswhen they are created

- Covered the projectwith swaggerwith a detailed description of thework of endpoints and each parameter,

reflecting serversecurity accessto each controller, including rolesto each endpoint

- Introduced Minio file storage into the project

- Set up a flexible searchwith filtering, including nested objects using JPA Specification

- Configured friendly exception handlingwith exact list of request errorsfor response to Frontend

- Database enrichingwith validation and deduplication

- Microservice for logging the status of the enrichin process

- XLSX file parsing

- Subscribing to object updatesfor further email notification of itschanges

- Set up service communication using RabbitMQ Refactoring individual parts ofservicesto a Stream API.

Team Size: Developers 6;

Project Role: Java Developer

Project Description: I divided the project into microservices,supported migrations, described own Spring Security

implementation.

Tasks Performed:

- Implemented authentication

- Integrated JWT technology

- Introduced custom implementation of JWT validationwith filters, providers, and result handlers.

- Added a Liquibase migration based on SQL scriptsto create a database structure

- Businesslogicwas described in serviceswith Rest access by roles

- Divided the project into microserviceswith restcommunication between them

Team Size: Developers 5;

Project Role: Java Developer

Project Description: Online theatrewith real-time actingwith the possibility of voting by the audience to change

the next production for the actors.

Tasks Performed:

- Writing automated testswith Mockito

- REST API