Володимир

[відкрити контакти](див. вище в блоці «контактна інформація») (telegram)
Volodymyr [відкрити контакти](див. вище в блоці «контактна інформація»)
Myronenko GitHub / Telegram / LinkedIn
Kyiv, Ukraine
Full Stack Engineer (Node.js)

Summary
Full Stack Engineer specializing in backend development for fintech and banking platforms.
Experienced in designing and building scalable services, automating complex business processes,
and integrating financial systems and third-party APIs. Strong background in backend architecture,
API design, and translating business requirements into reliable technical solutions. Commercial
experience with Node.js, TypeScript, NestJS, GraphQL, React, and frontend-backend integration.
Skilled in working with PostgreSQL, including query optimization, database design, migrations,
indexing, transactions, and performance tuning in production environments.

Skills
Backend Frontend
Node.js, TypeScript, JavaScript, Nest.js, Python React, TypeScript
APIs & Architecture Caching & Messaging
REST API, GraphQL, Hasura, WebSockets Redis, Kafka
Databases Other
PostgreSQL, MySQL AI & LLM Tools, Claude, Copilot, API
Cloud & Infrastructure integrations, Agile/Scrum, Jira, Confluence,
AWS, GCP, Docker, GitLab CI/CD Git, HTTP
English – C2

Experience
Full Stack Engineer (Node.js)
Zoral
2021 - Present | Kyiv, Ukraine
 Developed and maintained backend services using Node.js, TypeScript, and NestJS for
banking and fintech products, reducing manual processing time by ~30% through automation
of business workflows.
 Designed and implemented REST APIs, business logic modules, validation layers, and
integrations with external financial systems, including credit bureau and LOS-related services.
 Developed client-facing interfaces using React and TypeScript, ensuring seamless frontend-
backend integration within the same fintech product.
 Built and optimized REST and GraphQL APIs, reducing response time by ~20%.
 Worked extensively with PostgreSQL, including query optimization, index creation, migrations,
transactional operations, and tuning of complex joins and aggregations, reducing latency by
~25%.
 Integrated backend services with internal banking systems and third-party APIs, improving
data exchange reliability and reducing failures
 Participated in system design, optimizing data flows and improving overall system
performance and scalability
Frontend Developer (Freelance)
2020 - 2021
 Built a sample full-stack application using React and Node.js
 Implemented REST API with authentication and data persistence
 Practiced API integration and frontend-backend communication

English teacher
China (Shenzhen) International Personnel Training Center
2016 - 2020 | Shenzhen, China

 Conducted English language training for students, improving overall communication skills and
fluency
 Designed and adapted lesson plans based on students’ levels and goals, increasing
engagement and learning effectiveness

Education
Mate Academy
Front-End developer

Kyiv National Economic University named after Vadym Hetman
Master’s degree in Economics

Taras Shevchenko National Pedagogical University of Luhansk
Master’s degree in Teaching Music and World Culture