Olexii

OLEXII LIASKOVETS .NET developer, 2+ years experience
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ABOUT
.NET Backend Developer with a focus on creating productive and scalable solutions. I have experience in developing
RESTful APIs on ASP.NET Core, integrating with relational and NoSQL databases, and applying SOLID, Clean Architecture,
CQRS, and Domain-Driven Design principles. I have participated in the entire development lifecycle: from designing and
implementing business logic to optimizing performance and deployment through CI/CD. I quickly adapt to new
technologies, enjoy solving complex technical problems, and creating solutions focused on business value.

SKILLS
.NET: C#, RESTful APIs, Dependency Injection, Repository Pattern, ASP.NET Core (Web API), EF Core, MVC, Serilog, Hangfire,
PostgreSQL, MongoDB, MsSQL RabbitMq, Dapper, Mediator Pattern, Design Patterns, FluentValidation, AutoMapper,
MediatR, ElasticSearch, JWT, xUnit, Clean Architecture, DDD, CQRS

Other: SQL, JavaScript, React, C++17, Git , Docker, Kubernetes, Swagger, Postman, CI/CD, AWS, WPF, WinForms

EXPERIENCE
GP Solutions: 08/2024 - 08/2025

• Implemented a full-text search system, which improved data retrieval speed by over 60% and enabled
advanced filtering and ranking capabilities for medical records.
• Collected and processed large volumes of medical records to generate analytical insights, which reduced
manual data review time by 20% and improved reporting accuracy.
• Contributed to automated testing using xUnit, increasing release stability and reducing production bugs by 30%.
• Integrated JWT-based authentication for secure API access, ensuring compliance with medical data privacy
standards.
Technologies: .NET 8, EF Core, Dapper, MsSQL, PostgreSQL, ElasticSearch, RabbitMQ, CI/CD, xUnit, JWT

AppWorks Software House: 07/2023 - 07/2024
• Conducted in-depth debugging and introduced structured logging, which significantly improved system
observability and reduced issue resolution time.
• Improved SQL query performance and caching, reducing average service response time by 35%, enhancing user
experience for thousands of customers.
• Refactored a critical PDF report generation module, this prevented a production outage and ensured 100%
SLA uptime.
• Contributed to technical design and performed code reviews, improving code quality and ensuring compliance
with Clean Architecture principles.
Technologies: .NET 6, EF Core, PostgreSQL, Docker, Redis, Serilog.

EDUCATION
TARAS SHEVCHENKO NATIONAL UNIVERSITY OF KYIV-BACHELOR, 2022-2026
computer science and information technologies

Personal path to IT
I started my programming path by completing IT courses at GRAND, where I got a broad understanding of software
development — from UI/UX design to core coding principles. Over time, I realized my passion lies in back-end
development. I chose C# as my primary language and since then have been actively developing pet projects, learning best
practices, and deepening my knowledge through hands-on experience.

Glory to Ukraine!