Oleh Balitskyi, Full-Stack .NET Developer
B2 (Upper-Intermediate) English
Senior (5-10 years)
Khmelnytskyi,
Ukraine
UTC+02:00
Summary
Full-stack .NET developer with extensive experience in building scalable server solutions and responsive front-end designs. Strong foundation in C# and ASP.NET Core development, supplemented by proficiency in Entity Framework Core and Dapper for optimal data access. Versatile with front-end development using React and TypeScript, ensuring high interoperability within complex CRM and e-commerce ecosystems. Proven ability to optimize system performance under high loads, integrate various APIs, and maintain CI/CD workflows. Supported by a Master's degree in Informational Technologies and a keen understanding of software engineering methodologies, bringing a valuable combination of technical acumen and practical experience to any team.
Main Skills
C/C++/C#
ASP.NET Core Framework
Entity Framework
Dapper ORM
T-SQL
Programming Languages
Scala Libraries and Tools
JavaScript Frameworks
.NET Platform
UI Frameworks, Libraries, and Browsers
C++ Libraries and Tools
JavaScript Libraries and Tools
Databases & Management Systems / ORM
Cloud Platforms, Services & Computing
Azure Cloud Services
Platforms
Deployment, CI/CD & Administration
Virtualization, Containers and Orchestration
Version Control
Mail / Network Protocols / Data transfer
Third Party Tools / IDEs / SDK / Services
QA, Test Automation, Security
Other Technical Skills
Work Experience
Full Stack Developer, Case Constructor
Duration: November 2018 – December 2019
Summary: Created user-friendly SaaS solutions for custom phone case creation with secure payment integrations and advanced image processing.
Responsibilities: Engineered machine architecture within ASP.NET Core Web API, improved UI interactions and server performance, optimized database access and query performance, designed robust API layer and service contracts, implemented resilient integration patterns, developed postal carrier API integration module, introduced Docker containerization, worked with gRPC for communication, and performed incident analysis in production.
Technologies: C#, ASP.NET Core Web API, ReactJS, TypeScript, T-SQL, Entity Framework, Dapper, Docker, gRPC, xUnit
Full Stack Developer, CRM Enhancement
Duration: January 2020 – September 2021
Summary: Enhanced e-commerce CRM capabilities with streamlined workflows, efficient data management, and responsive interfaces.
Responsibilities: Implemented scalable server platform, adopted ASP.NET Core and Akka.NET for actor-based concurrency, designed call-center integration, developed RESTful APIs and service contracts, engineered CRM postal operator API integration, built external-partner API, performed production incident analysis and implemented safeguards.
Technologies: ASP.NET Core Web API, Akka.NET Actor System, ReactJS, TypeScript, T-SQL, Entity Framework, Dapper, xUnit
Full-Stack .NET Developer, Business Intelligence and Predictive Analytics
Duration: September 2021 – January 2022
Summary: Built predictive analytics and test modules for business reviews to enhance strategic decision making through data-driven insights.
Responsibilities: Designed responsive user interfaces with ReactJS and Redux, built interactive data visualization dashboards, implemented single sign-on authentication, applied state management patterns, engineered high-performance components, conducted performance testing and tuning, collaborated on API contract definitions, and maintained Git workflows.
Technologies: C#, ASP.NET Core, Identity Server 4, Akka.NET, MSSQL, Dapper, ReactJS, Redux, Microsoft Azure, xUnit
Senior Back-End Developer, HR Management System
Duration: October 2022 – July 2023
Summary: Streamlined HR processes through the development of role-specific access controls, efficient vacation scheduling, and secure documentation management.
Responsibilities: Developed and maintained RESTful services, implemented EF Core-based data access, optimized MariaDB and T-SQL performance, contributed to service decomposition, implemented role-based access control, integrated external providers, built automated reminders and notifications, performed root-cause analysis of production issues.
Technologies: C#, ASP.NET Core, T-SQL, MariaDB, Entity Framework, RxJS, MaterialUI, xUnit
Senior ASP.NET Developer, CRM and E-commerce Ecosystem Development
Duration: January 2023 – August 2025
Summary: Contributed to the development of a unified CRM and e-commerce ecosystem, ensuring scalable architecture and system integrations.
Responsibilities: Designed and maintained server-side architecture, optimized transaction-based database connectivity, applied EF Core for advanced domain modeling, built secure REST API for CRM consolidation, developed full-text search, refined concurrency controls, directed CRM and 1C enterprise management system data synchronization, deployed server database for capturing user actions.
Technologies: C#, ASP.NET Core 2.1, Akka.NET Actor System, MS SQL Server, Entity Framework Core, Dapper ORM, xUnit
Education
- Master’s degree in Informational Technologies of Computer Engineering
- Khmelnitskyi National University
- September 2017 – June 2022