Bohdan

Bohdan Teplytskyi
Bratislava, Slovakia • [open contact info](look above in the "contact info" section)
[open contact info](look above in the "contact info" section) • LinkedIn • GitHub

Summary
Backend Developer with 2 years of experience in the .NET ecosystem. Background in
high-load systems and API integrations. TUKE graduate located in Bratislava with a full work
permit (Odídenec). Focused on technical results and effective team collaboration.

Experience

Backend Developer Mar 2025 - Present
NDA - UAE, Remote
Developed and optimized core components of a high-load payment platform, handling
transaction logic and microservices architecture.
●​ Migrated to a new SMS provider, reducing costs by ~60%
●​ Implemented background services for automated transaction lifecycle management
(polling, cancellation of outdated records)
●​ Resolved critical concurrency issues in webhook processing
●​ Developed automated tests
●​ Integrated third-party APIs and webhooks, including cryptocurrency providers

Backend developer Jul 2024 – Mar 2025
Freelance
Developed and maintained ASP.NET Core web applications for a few clients, focusing on
migrating legacy logic to modern APIs and optimizing database performance. Mostly fixed
bugs and added new features when they needed them.
●​ Optimized slow PostgreSQL queries by implementing efficient indexing and Redis
caching to make the sites stop lagging
●​ Developed React-based front-end components
●​ Integrated a payment system (Stripe)
●​ Wrote a web scrapper for tracking goods in Ukrainian e-shop

Backend developer Apr 2024 - Jul 2024
Avrelinex - Poland, Remote
Worked as part of a development team in an outsource company, focusing on upgrading
and modernizing microservices. Worked on backend features for web applications in the
.NET ecosystem. Handled bug fixes and small feature requests within a remote team.
●​ Upgraded and maintained multiple microservices, worked with RESTful APIs
●​ Implemented asynchronous messaging and event-driven communication with
RabbitMQ
●​ Secured service-to-service communication with JWT
 ●​ Worked with AWS services (EC2, S3) for application deployment and cloud storage
management

Skills
Languages & Frameworks: C#, .NET Core, ASP.NET Core, EF Core, REST API, JavaScript,
HTML/CSS, React​
Databases & Tools: PostgreSQL, MS SQL Server, Redis, RabbitMQ, Git, Docker, AWS
Languages
English - Upper intermediate Ukrainian - Native
Slovak - Elementary Russian - Native
Certificates
Certificate: C# Development [Jan 2023 - May 2023]
Beetroot Academy - Online

Education
Bachelor of Science: SMART Technologies [Sep 2022 - Jun 2025]
Technical University of Kosice - Presov