Андрій

ANDRII SYSAK
SENIOR .NET BACKEND DEVELOPER |DB |CLOUD

CONTACT PROFILE

[відкрити контакти](див. вище в блоці «контактна інформація») Senior .NET Backend Developer with 5+ years of experience
[відкрити контакти](див. вище в блоці «контактна інформація») designing and operating secure, high-load backend
systems. Strong expertise in .NET, cloud-native architectures,
TG: @smerteger
education, evaluation and fintech-adjacent platforms.
Regular contributor to architectural decisions, system
reliability, and security. Effective in mission-critical
environments where performance and stability are critical.
Actively use and encourage the team to use AI-tools to
boost performance.

SKILLS EXPERIENCE

C#, .NET 8–10, ASP.NET Core Senior .NET Backend Developer
Backend Architecture, 5 years combined
Microservices, Multi-Tenant • Led design and evolution of a multi-tenant backend
Systems architecture
High-Load & Distributed • Built and maintained scalable REST APIs using
Systems ASP.NET Core and EF Core
Async Programming, • Integrated and operated payment providers and
Multithreading third-party platforms
SQL Server, MySQL • Implemented authentication and compliance
Azure, Docker, CI/CD, IIS workflows (OAuth 2.0, OFAC)
OAuth 2.0, OFAC, Azure Key • Developed real-time features using SignalR and
Vault WebSockets
SignalR, WebSockets, Blazor, • Strengthened security and secrets management
HTML, CSS (Azure Key Vault, Cloudflare)
ChatGPT, Cursor • Participated in architecture reviews, code reviews,
and mentoring
EDUCATION • Owned technical documentation and long-term
maintainability
Master’s Degree in Computer
Science 2024

The Ivano-Frankivsk National
Technical University of Oil and
Gas, Ivano-Frankivsk, Ukraine.