Dmitriy Kostyanetskiy Email and Phone Number
Java/Kotlin developer with 6 years of commercial experience, working in teams ranging from 5 to 30 members, both remotely and on-site. Built and optimized the full development lifecycle: from gathering business requirements from stakeholders to establishing fully automated release processes with high test coverage, detailed performance analytics, and CI/CD pipelines. Expert in object-oriented programming and design patterns, with deep experience in building scalable, secure, and highperformance backend systems using Java and Spring Framework.In addition to core Java expertise, worked extensively with microservices architecture, RESTful API design, and messaging systems (e.g., Kafka, ActiveMQ) for handling real-time financial data. Passionate about applying SOLID principles and Domain-Driven Design (DDD) to build scalable, maintainable systems. Strong focus on clean architecture to ensure flexibility and ease of future development. My hobby is mentoring junior developers and publishing technical articles focused on secure software development practices in the financial industry.Backend: Java 17, Kotlin, Spring Boot, Hibernate, Postgres, QueryDSL, WebFlux, Gradle, Kafka, ActiveMQ,ArtemisMQ, Keycloack, Junit, Mockito, TestContainers, Docker, Kubernetes, FlywayOther: Groovy, React, ELK, Grafana
Raiffeisen Bank Russia
View- Website:
- raiffeisen.ru
- Employees:
- 1612
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Java DeveloperRaiffeisen Bank Russia May 2023 - PresentМосква, РоссияDevelopment of new systems from scratch based on microservice architecture:• SWIFT transfer investigation• Dispute handling for SBP (C2B, B2B) transactions• Implemented a new system that increased the level of process automation by 30%, reducing the timefor key operations from 2 hours to 30 minutes, and boosting overall team productivity by 15%• Successfully migrated over 10 million records to the Datalake, centralizing data storage and reducingthe time for analytical queries from 1 hour to 15 minutes, significantly improving data access for businessanalytics• Optimized key SQL queries, resulting in a 4x speed increase (from 2 seconds to 0.5 seconds), reducingthe database load and improving the responsiveness of the application for end users
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Java DeveloperRight Line Oct 2021 - Apr 2023Moscow, Moscow City, RussiaOutsourcing in Tinkoff Bank• Increased test coverage from 0% to 70%, significantly improving the stability and reliability of thecodebase. This helped reduce the number of production bugs by 30% and accelerated the identification ofissues during development• Created a custom testing framework for Groovy scripts, based on the ScriptEngine library andTestContainers. This framework enabled automated testing of complex script logic, reducing manualtesting time by 50% and ensuring higher script execution reliability• Successfully integrated a Maven build system for a legacy project, streamlining the build anddependency management processes. Additionally, implemented a continuous integration (CI) pipelinethat reduced the time required for manual deployments by 40%, while ensuring more frequent and stablereleases -
Java DeveloperSberbank Nov 2020 - Oct 2021Moscow, RussiaParticipated in the development of a web application for managing database of clients and their bank accounts.• Refactored the application for Java 8, improving code maintainability and reducing the codebase by 15%• Migrated async processes to Kafka, boosting message throughput by 50% and reducing delivery delaysby 20%• Built an in-house authorization system, enhancing security and reducing incidents by 25%, ensuringregulatory compliance -
Quality Assurance Automation EngineerIbs Appline Apr 2019 - Nov 2020Moscow, Russian FederationOutsourcing in IBS - one of the largest Russian IT companies in consulting, IT outsourcing and software development with assets of more than $ 41 billion.• Created an integration with Jira Test, reducing manual reporting time by 90% and ensuring real-timevisibility into test results• Trained 5+ manual testers, helping them adopt automation tools, which increased test coverage by 40%across their projects
Dmitriy Kostyanetskiy Skills
Dmitriy Kostyanetskiy Education Details
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Information Technology
Frequently Asked Questions about Dmitriy Kostyanetskiy
What company does Dmitriy Kostyanetskiy work for?
Dmitriy Kostyanetskiy works for Raiffeisen Bank Russia
What is Dmitriy Kostyanetskiy's role at the current company?
Dmitriy Kostyanetskiy's current role is Fintech | Java Developer | Back End Developer.
What schools did Dmitriy Kostyanetskiy attend?
Dmitriy Kostyanetskiy attended Moscow City Teachers’ Training University (Mgpu).
What skills is Dmitriy Kostyanetskiy known for?
Dmitriy Kostyanetskiy has skills like Test Engineering, Java, C#, Unity, Selenium Webdriver.
Who are Dmitriy Kostyanetskiy's colleagues?
Dmitriy Kostyanetskiy's colleagues are Ekaterina Suzdaleva, Alina Afanasjeva, Alex Velyaninova, Илья Сергеев, Natalia Troshanina, Георгий Козлов, Татьяна Шлегель.
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