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Work experience

Node.js-розробник

from 07.2025 to 04.2026 (10 months)
WTT SOLUTIONS, Дистанційно (IT)

Node.js Backend Developer in a cross-functional team, engineering complex architectures from scratch, including a premium
social network and a highly secure medical ticketing system.
• Architected a fault-tolerant, HIPAA-compliant email ingestion pipeline (NestJS, Pub/Sub, BullMQ) to automate patient
support workflows, eliminating manual processing and securing sensitive medical data.
• Built the core monetization and access control backend for a premium social network, implementing dynamic paywalls and
robust subscription lifecycles.
• Resolved critical high-concurrency race conditions using strict database transactions to guarantee data integrity and safely
enforce complex business rules under heavy load.
• Engineered an idempotent background job system for automated notifications, ensuring reliable delivery without spamming
users during server disruptions or restarts.
• Technology Stack: Node.js (NestJS), TypeScript, PostgreSQL (Prisma), Redis (BullMQ), Google Pub/Sub, WebSockets,
AWS (S3, SES), Docker

Node.js-розробник

from 07.2024 to 06.2025 (1 year)
Lazy Ants, Дистанційно (IT)

Key backend engineer developing and maintaining White Label crypto-wallet solutions for diverse international clients, ensuring
high security and performance standards for financial operations.
• Spearheaded the architecture and implementation of a refactored deposit system, significantly improving transaction relia-
bility and data consistency across various wallet instances.
• Developed off-chain transaction logic for system commission charges, optimizing backend performance and reducing blockchain
interaction costs.
• Implemented robust balance snapshot mechanisms to ensure accurate financial reporting.
• Participated in critical troubleshooting and resolution of cross-service issues within microservices, maintaining high system
availability.
• Technology Stack: Node.js (NestJS), TypeScript, MongoDB, Docker, Git, Microservices.

Fullstack Developer

from 03.2023 to 04.2024 (1 year 2 months)
GEGI, Дистанційно (IT)

Integral part of a cross-functional team focused on enhancing the core functionalities of an educational platform, managing
the full development lifecycle from conceptualization to deployment.
• Developed and maintained core backend services facilitating the input, processing, and management of student data, course
information, and administrative workflows.
• Created and managed API endpoints using NestJS and TypeORM to support React front-end applications and third-party
integrations.
• Designed database schemas in PostgreSQL and MongoDB to ensure efficient storage and retrieval of complex educational
data.
• Identified and resolved complex bugs across various system components to maintain high availability and reliability.
• Technology Stack: Node.js (NestJS, Express.js), TypeORM, React, PostgreSQL, MongoDB, Jest, Gi

Education

Львівський національний університет імені Івана Франка

Прикладна математика та інформатика, Львів
Higher, from 2022 to 2026 (4 years)

Knowledge and skills

• HTML
• CSS
• Git
• SASS
• Figma
• GitHub
• JavaScript
• React
• TypeScript
• Gulp
• Redux Toolkit
• TailwindCSS
• React Hook Form
• Next.js
• REST API
• Node.js
• Prisma ORM
• Здатність до навчання
• NestJS
• SQL
• MongoDB
• Mongoose
• Jest
• Express.js
• TypeORM
• PostgreSQL
• Redux
• Стресостійкість
• Docker
• Docker Compose
• Nest.js
• Redis
• AWS
• Amazon S3
• Prisma
• WebSocket
• Microservices
• GitLab
• Git Bash
• Linux Mint
• Користувач ОС Linux

Language proficiencies

• Ukrainian — fluent
• English — average