Position: Senior Java Developer
Category: Java
English level: intermediate
Years of experience: 4

[May 2022 - Present] Outsource company

- Minimized customer waiting time for server responses during other company systems malfunctions, and relieved load on those systems. (by the CircuitBreaker design pattern)

- Improved regular import large amounts of data into the DB from 40 to 4 minutes, significantly saving company costs. (due to multithreading)

- Sped up development and improved team's code understanding by refactoring a lot of legacy code. (by best practices of Robert C. Martin)

[Feb 2019 - May 2022] Product company

- Digitised and implemented calculations for assessing battlefield situations, calculations for units' readiness time in operations, and units' march calculations. No one in Ukraine had ever done this before. (according to our stakeholders)

- Integrated the developing system with other military systems according to NATO standards, which made the company's product more in demand.

- Designed backend architecture for systems of troop control, artillery and operational calculations, battle situation assessment and many other features.
I believe code should be clean, obvious and reliable.

Over the past 4+ years, I have worked in the military, retail and fintech industries and have seen and solved a wide range of problems. Therefore, I can tackle most of the backend challenges you have.

[May 2022 - Present] Outsource company

- Developing a backend for clothes retail, sales and HR management for an international retail holding company.
- Providing data processing, storage and caching between iPad clients and numerous services.

[Feb 2019 - May 2022] Product company

- Participated in the development of software class C2-C4I military systems by NATO standards.
- Implemented innovative solutions and architecture improvements from the beginning of development till launch on fire-ranges.

Also I have Bachelor's Degree in Computer Sciences and participated in Fintech startup
If you would like to chat about working together, please let me know in a direct message.

Thank you, and I look forward to discussing potential opportunities.