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Backend Software Developer - 21581 Outstaffing
- Self-motivated Java Developerwith two years of experience in developing Microservice Architecture.
-Have good experience in populating a databasewith validation and data deduplication.
- Experienced in protecting servers using JWTwithwriting own implementations of filters, providers and handlers
including customization of the role model for each endpointseparately. This experience includessetting up LDAP.
- Experienced in covering controllerswith a Swagger reflecting serversecurity accessto each controller, including
rolesto each endpoint.
- Good skillsin Liquibase migrations, both using plugins and manuallywith a description of rollbacks.
- Excellent analyticalskills, proven ability to perform issuesinvestigation,conduct rootcause analysis and master
newtools/frameworks quickly.
Professionalskills:
Programming languages
Java, JPQL
Frameworks
Spring, Spring Data, Spring Boot, Spring Security, Spring MVC, Log4j, Mockito, Entity
Object-oriented programming
SOLID
Libraries
Lombok,Hibernate
Protocol
Rest API, JDBC, LDAP
Databases
MySQL, PostgreSQL
Technologies
iOS/Android multithreading
Source controls
Git
Software
Liquibase
Toolkit
Swagger
Bug Tracking System
Jira
Developmenttools
Bitbucket, GitHub
Platforms
Docker, RabbitMQ
Virtualization
Docker Compose
API
JPA, JPA, Stream API
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