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Ilya Belan

Ilya Belan

Junior Java Developer

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location of Ilya BelanPorto, Porto, Portugal

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  • Timeline

  • About me

    UZUM | Senior Java Software Developer | ex-OZON

  • Education

    • Peter the Great St.Petersburg Polytechnic University

      2016 - 2020
      Bachelor's degree Math and computer sciences

  • Experience

    • Geoscan Group

      Sept 2018 - Jul 2019
      Junior Java Developer

      Amazing initial experience! I was involved into development of microservices for personal account of photogrammetric software.My responsibilities were:- Collaboration with FE team to agree on contracts- Working with Docker, writing FlyWay migrations, SQL and HQL queries- APIs implementation and writing Swagger specifications- Writing unit and integration tests using Mockito TestContainer, JUnit 4, WireMock

    • Center of Reactive Programming

      Aug 2019 - Nov 2021
      Java Developer

      Most of my time was devoted to working on a complex SPDM (Simulation Process and Data Management) system, specifically designed for engineers.My responsibilities were:- Collaboration with FE team to agree on contracts- Improving SQL queries efficiency, writing SQL migrations- Creating auxiliary script using SQL, bash, Python- Developing unit and integration tests using JUnit 5, Mockito, Spock, TestContainer- Participation in the discussion of architecture design

    • OZON.ru

      Nov 2021 - Nov 2024

      I’ve worked at 3 teams and have been involved in the development of:- Currency management services: 100k+ RPS load, integration with bank APIs, providing relevant currency rates over the marketplace, etc.- Classified platform: a new complex platform within the marketplace involving many subsystems.- Search engine: 100k+ RPS, proprietary search engine, conducting AB tests, doing data analysis, casual development to handle high load.I take responsibility for:- Set of microservices; Their stability, management, support- Code review, code releases- Conducting interviews and screenings, mentoring newcomers- On-call rotation, solving urgent production issues 24/7, problems troubleshooting- Architecture refactoring and development- Conducting the research on technologies we apply. Integrating these technologies into services. Show less

      • Senior Java Developer

        Nov 2022 - Nov 2024

      • Java Developer

        Nov 2021 - Nov 2022

    • Uzum

      Oct 2024 - now
      Senior Java Software Engineer

  • Licenses & Certifications