Aliaksei Ryzhkou

Information conglomerate customer Migration backend application from Groovy/Grails to Java/SpringBoot (development), mentor less experienced people, code review, enhance documentation and guides, clarifying requirements and expectations with Tech Lead. Take care of the codebase and control the development process and practices, suggest and implement improvements.

Business Information & Media The only backend developer on the application for profile management, participation in application flow design, solution investigation and implementation (authorization, automation testing of API), improved github CI process, healthcheck, backend authorization, automation testing reports, sonar-github integration

Multimedia & TV streaming Support and development of current microservices, troubleshooting, investigation and support of migration process for a big customer; improved scheduled jobs (provisioning and cleanup), updated login process provisioning path (for new program) Stack:Java11/17, SpringBoot, Kubernetes, Docker, Lua, Python, SQL, junit5, Flyway, maven, Jenkins, microservices, REST, helm

Gantt Chart Provide architecture solutions, create CICD and infrastructure with CloudFormation and gitlab pipeline, make them work together, configure clean code practices and static analyzes for repositories, control and observation of engineering culture and development direction, sessions with TeamLeads, analyze of technical implementation, UserStories creation, git repositories management Stack: list of AWS tools, Git, GitLab pipeline, Docker, Java, ReactJS, PostgresQL

Work-motivation domain (integrations part) Provide MS Teams Bot solution, tons of investigation work. Investigated Bot registration in Azure, played leading role in AWS Lambda development of bot, management of git repositories (rules, merging strategy etc.) Stack: Python3, SqlAlchemy, PostgreSQL, AWS (Lambda, S3, SecretsManager, RDS, CodePipeline, CloudFormation), Freeway, OpenAPI (definition first) Integrate it to work with the core system: Java8, Mapstruct, Spring5, junit4

development to provide fault-tolerance and resilience of services Stack: Polyglot persistence (MS SQL + dynamoDB), java11, Rest, splunk, spring boot, aop, junit4, pipeline modifications with Spinnaker & Jenkins, aws (CloudFormation, s3, dynamoDB, SecretsManager) Got production experience with StoredProcedures, Pipeline customizing with Spinnaker, AWS Infrastructure

Project 1 – Healthcare Supply Chain Management Electronic Invoicing Platform • Developed backend modules for a healthcare supply chain platform, enabling flexible invoice template customization and contributed to deployment stability by effectively using database evolution/rollback mechanisms. Project 2 – Malaysian Finance Bank • Delivered core backend components using Java 11 and Axon Framework ensuring full compliance with complex banking workflows and passing acceptance testing with zero critical issues

Project: Global Hotel Chain Loyalty Platform • Developed multi-module backend (Java 8, Spring 4, OracleDB, REST, SOAP). • Worked under TDD and SCRUM, created unit and service tests (JUnit, Mockito, PowerMock, Spock). • Gained solid experience in enterprise system design, CI/CD, and test automation.

Led development of two long-term web systems for public and enterprise use: Children's Clinic Portal: Modernized multiple clinic websites, added new patient communication features, and managed client requests directly. Web-based Accounting System: Rebuilt a legacy DOS/Delphi accounting tool in Java, led a small dev team, introduced Git and CI (Jenkins), and acted as architect and full-stack developer.

Activities and societies: Freestyle wrestling, Muai thay ("DeMir"​ club)