Ілля

Illia Oleksii
Contact Information
[відкрити контакти](див. вище в блоці «контактна інформація»)/[відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | Telegram - @Naxthesy | Vodnjan,
Croatia | Linkedin - [відкрити контакти](див. вище в блоці «контактна інформація»)

Summary

Senior .NET Developer with over 5 years of experience in maintaining high-load
systems and leading agile teams. Skilled in optimizing software performance. Proven
track record of delivering complex solutions under tight deadlines, with hands-on
expertise in modern frameworks and technologies. Committed to leveraging unique
skills to enhance development processes and ensure seamless project execution.

Technical Skills
Languages: C#, JavaScript, SQL, TypeScript
Frameworks: .NET 8, ASP.NET Core, React, AngularJS
Databases: MS SQL Server, PostgreSQL, MongoDB
Tools & Technologies: Docker, RabbitMQ, ServiceStack, MassTransit, Azure, Git, AWS,
Jenkins Libraries: iText7, ClosedXML, xUnit, NUnit, MUI, Redux-Toolkit, RTK Query
Cloud & DevOps: Azure App Service, CI/CD Pipelines, Serilog, Prometheus, Grafana

Experience

.NET Developer (Tender Platform)
September 2024 - December 2025 | Neolink Ukraine

Developed notification service with SignalR, SendGrid API and messenger integrations

Implemented functionality for invited suppliers on tender platform with referral system via

email
Built comprehensive PDF and Excel reports containing full tender information

Developed AI-powered search functionality using ChatGPT API for supplier categorization

Integrated service for e-signature of documents

FullStack Developer .NET/React (Clinic)
May 2021 – August 2024 | Intetics Ukraine

Refactored patient treatment plan logic and workflow management

Migrated multiple microservices from Entity Framework to Dapper for improved performance

Created generic React component with Excel library integration and standardized CRUD
API endpoints for 10+ database tables with similar structure
Worked with ai face recognition for patient scheduler
Focused on backend bug fixes and system maintenance (60% backend, 40% frontend)

Projects

Tender Platform | C#, .NET 8, SQL Server, PostgreSQL, RabbitMQ, Workflow Core,
Azure, SendGrid, SignalR, AI API, Microservices

2024 – 2025

Developed comprehensive tender management platform with real-time notifications
Implemented AI-powered supplier search and categorization system

Built automated reporting system for tender documentation

Integrated multiple communication channels for supplier engagement

Intetics Clinic | .NET 5-8, MongoDB, Docker, RabbitMQ, PostgreSQL, MS SQL,
Microservices, Redis Cache, Jenkins

2021 - 2024

Developed comprehensive clinic management system with patient care workflows
Built microservices architecture with event-driven communication
Implemented caching strategies and performance optimization

Established CI/CD pipelines for automated deployment

Education
Vinnytsia National Technical University | Vinnytsia, Ukraine
Bachelor's Degree | 2020 – 2024

English – B2, Ukrainian – native, Croatian – A2