Макарій

Makarii Slupskyi
Full Stack Developer (React / Node.js / PostgreSQL)

+093-057-9272 | [open contact info](look above in the "contact info" section) | Telegram: @makarii_sl
Kyiv, Ukraine

Summary
Full Stack Developer focused on React, Node.js, and PostgreSQL, currently studying at KPI
(FIOT). Experienced in building interactive UIs and solving complex logical problems like
real-time collaboration.

Technical Skills
● Frontend: React, Next.js, TypeScript, Zustand, ReactFlow, Tailwind CSS, React Native
● Backend: Node.js, Express.js, Nest.js, Prisma
● Databases: PostgreSQL, pgRouting
● Tools & Concepts: Git, Yjs CRDT, WebSockets, OAuth2, REST API

Experience
Frontend Developer – EvoPlay (iGaming)
Feb 2025 – Aug 2025

● Configured and maintained administrative panels and interactive dashboards for
iGaming products using React.
● Successfully migrated existing user interfaces to integrate with new API versions,
ensuring smooth data flow, backward compatibility, and improved system stability.
● Collaborated on internal tools, focusing on clean UI architecture and efficient state
management.

Projects & Practical Experience
Skematic – Collaborative Whiteboard Application

Tech Stack: React, ReactFlow, TypeScript, Node.js, PostgreSQL, Yjs CRDT, WebSockets

● Developed an interactive visual diagramming system tailored for building dynamic
documentation.
● Engineered real-time, multi-user collaboration functionality utilizing Yjs CRDT and
WebSockets to ensure seamless conflict resolution and state synchronization.
● Designed and implemented a secure authentication flow integrating Google and GitHub
OAuth2.
● Optimized UI rendering to handle complex node graphs smoothly.

Svitliachok – Safe Route Finder

Tech Stack: React Native, Nest.js, PostgreSQL, pgRouting

● Designed and implemented a custom spatial router utilizing PostgreSQL and pgRouting
to calculate optimal paths based on safety metrics and speed.
● Developed a cross-platform mobile application in React Native aimed at helping
pedestrians navigate via well-lit, secure routes at night.
● Participated in technical planning to design the database schema for efficient geospatial
queries.

Education
Kyiv Polytechnic Institute (KPI) – Faculty of Informatics and Computer Science (FIOT)
Bachelor's Degree (In Progress)

Languages
● English: B2+ (Upper-Intermediate)
● Ukrainian: Native