10/13/2026 updated
MK
100 % available
Full Stack .Net Software Developer
region Sumska, district Romenskyi, town Zhytne, Ukraine
Worldwide
System Programming SpecialistASP.NET.NET FrameworkASP.NET MVC FrameworkC Sharp (Programming Language)Code ReviewWeb DevelopmentEntity FrameworkManaged Extensibility Framework (.NET Framework).NET Framework 4BlockchainSoftware DesignSoftware EngineeringSQL DatabasesSystems IntegrationWebDev
PROFESSIONAL PROFILE
.NET developer with 5+ years of commercial experience building web applications, backend services, and data processing systems with C#, ASP.NET Core, and SQL Server. I specialize in business logic, database design and optimization, third-party integrations, and business process automation. I take ownership of features from task definition to production: requirements analysis, design, implementation, logging, optimization, and support. Equally effective at building new solutions and evolving existing .NET systems.
TECHNICAL SKILLS
Web & Backend
C#, .NET / .NET Core, .NET Framework, ASP.NET Core, ASP.NET MVC / ASP.NET Core MVC, Web API, Razor, REST. Asynchronous programming, multithreading. Authentication and authorization: ASP.NET Core Identity, JWT, OAuth.
Databases
MS SQL Server, T-SQL: schema design, normalization, data integrity; stored procedures, functions, triggers; indexing, execution plan analysis, query optimization; migrations. Data access: Entity Framework / EF Core, ADO.NET, LINQ.
Integration & Automation
Third-party REST API integration, webhooks, CRM integration, pagination, background and scheduled jobs (Quartz.NET); email: SMTP, IMAP, MailKit. Experience with blockchain data analysis.
Reporting & Data Processing
Excel import/export (NPOI), CSV, JSON, XML; PDF and printable document generation; business reporting.
Version Control & CI
Git (GitHub, GitLab): branching workflows (feature branches, Git Flow), pull/merge requests and code review, merge conflict resolution, rebase, cherry-pick, tagging and releases; automated checks with GitHub Actions.
Diagnostics & Tooling
Structured logging (Serilog), tracing and metrics (OpenTelemetry), API documentation (Swagger/OpenAPI), API testing (Postman). AI-assisted development (Codex, ChatGPT).
Experience
Professional experience5 - 10 years
Freelancer since2017
Languages
EnglishGoodRussianNative speakerUkrainianNative speaker
Project history
Backend development for collecting, processing, and analyzing financial data from external sources: third-party API integration, data aggregation and normalization, and analytical and financial reporting based on the client's business rules. Database and business-logic design for tracking raw materials, supplies, equipment, and finished products; automated calculation of key production metrics and management reporting (SQL Server, EF Core).
Freelance