Upstaff Sign up
Oleh Balitskyi
🇺🇦Ukraine (UTC+02:00)
Created AtUpstaffer since September, 2025

Oleh Balitskyi — Full-Stack .NET Developer

Expertise in Back-End Web (4.5 yr.), Full Stack Web (4.5 yr.).

Last verified on September, 2025

Core Skills

C/C++/C#
ASP.NET Core Framework
Entity Framework
Dapper ORM
T-SQL
T-SQL

Bio 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.

Technical Skills

Programming LanguagesTypeScript
Scala Libraries and ToolsAkka.Net
JavaScript FrameworksAngularJS
.NET PlatformASP.NET Core Framework, Azure, Entity Framework, Identity Server, WPF
C++ Libraries and ToolsC/C++/C#
JavaScript Libraries and ToolsRedux, RxJs
Databases & Management Systems / ORMDapper ORM, MariaDB, MySQL, PostgreSQL, T-SQL
UI Frameworks, Libraries, and BrowsersBootstrap 4, CSS, HTML, Material UI
Cloud Platforms, Services & ComputingAWS, Azure
Azure Cloud ServicesAzure DevOps
Platforms1C
Deployment, CI/CD & AdministrationBlazor, CI/CD
Virtualization, Containers and OrchestrationDocker, Terraform
Version ControlGit
Mail / Network Protocols / Data transferGRPC
Third Party Tools / IDEs / SDK / ServicesIntelliJ IDEA, Microsoft Visual Studio Code, Visual Studio
QA, Test Automation, SecuritySelenium, xunit
Other Technical SkillsEnglish

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

How to hire with Upstaff

1

Talk to Our Talent Expert

Our journey starts with a 30-min discovery call to explore your project challenges, technical needs and team diversity.

2

Meet Carefully Matched Talents

Within 1-3 days, we’ll share profiles and connect you with the right talents for your project. Schedule a call to meet engineers in person.

3

Validate Your Choice

Bring new talent on board with a trial period to confirm you hire the right one. There are no termination fees or hidden costs.

Why Upstaff

Upstaff is a technology partner with expertise in AI, Web3, Software, and Data. We help businesses gain competitive edge by optimizing existing systems and utilizing modern technology to fuel business growth.

Real-time project team launch

<24h

Interview First Engineers

Upstaff's network enables clients to access specialists within hours & days, streamlining the hiring process to 24-48 hours, start ASAP.

x10

Faster Talent Acquisition

Upstaff's network & platform enables clients to scale up and down blazing fast. Every hire typically is 10x faster comparing to regular recruitement workflow.

Vetted and Trusted Engineers

100%

Security And Vetting-First

AI tools and expert human reviewers in the vetting process is combined with track record & historically collected feedbacks from clients and teammates.

~50h

Save Time For Deep Vetting

In average, we save over 50 hours of client team to interview candidates for each job position. We are fueled by a passion for tech expertise, drawn from our deep understanding of the industry.

Flexible Engagement Models

Arrow

Custom Engagement Models

Flexible staffing solutions, accommodating both short-term projects and longer-term engagements, full-time & part-time

Sharing

Unique Talent Ecosystem

Candidate Staffing Platform stores data about past and present candidates, enables fast work and scalability, providing clients with valuable insights into their talent pipeline.

Transparent

$0

No Hidden Costs

Price quoted is the total price to you. No hidden or unexpected cost for for candidate placement.

x1

One Consolidated Invoice

No matter how many engineers you employ, there is only one monthly consolidated invoice.

Ready to hire Oleh Balitskyi
or someone with similar Skills?
Looking for Someone Else? Join Upstaff access to All profiles and Individual Match
Start Hiring