Кирило

Kyrylo Ozmitel — Backend Developer
Contacts [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | github.com/ozmitelll

About Me
Backend Developer with 3+ years of experience designing scalable APIs, optimizing databases, and
building secure server-side applications. Skilled in distributed systems, queue optimization, and real-time
data processing. Strong focus on performance, reliability, and clean architecture.

Work Experience
Backend Developer | Modok Project (2023–2024)

• Designed backend architecture using FastAPI, PostgreSQL, Redis.

• Implemented real-time communication with WebSocket, supporting thousands of concurrent
users.

• Optimized API response time by ~35%, reducing latency in high-load scenarios.

• Built queue management for game logic, ensuring stable performance under peak loads.

• Integrated Stripe/LiqPay for secure payment processing.

Backend Developer | M&V (2022–2023)

• Developed crypto exchange backend with ASP.Net Core, EF Core, MySQL, Redis.

• Implemented transaction confirmation logic, reducing processing time by ~15%.

• Designed role-based access control with JWT authentication.

• Collaborated with frontend engineers to deliver real-time updates via APIs.

Backend Developer | EYWA (2022)

• Built backend for crypto exchange using ASP.Net Core, EF Core, MySQL.

• Integrated Trust Wallet API and smart contract system for secure blockchain transactions.

• Optimized database queries, reducing response time by ~20%.

• Implemented monitoring and logging for transaction security.

Backend Developer | YTC (2021–2022)

• Developed backend for AI widget using FastAPI, SQLAlchemy, PostgreSQL, Redis.

• Designed queue system for AI generation, reducing latency by ~25%.

• Improved CI/CD pipeline, reducing deployment time to 6–7 minutes from 14–17 minutes.

• Collaborated with frontend engineers to integrate APIs seamlessly.

Backend Developer | SEOK (2021–2022)

• Built backend for e-commerce jewelry store using ASP.Net Core, GraphQL, PostgreSQL.

• Implemented ElasticSearch for product search and Redis for cart caching.

• Designed secure checkout flow with JWT authorization.
 • Enhanced scalability by optimizing API endpoints and caching strategies.

Education
Bachelor’s Degree in Computer Science | MITIT (2020–2024)

Technical Skills
• Backend Frameworks: FastAPI, ASP.Net Core, Express.js

• Databases: PostgreSQL, MySQL, SQLAlchemy, EF Core

• Tools & Libraries: Redis, GraphQL, WebSocket, Docker, CI/CD

• Practices: API Design, Query Optimization, Queue Management, Security (JWT, role-based
access)