Contact information

You can get this candidate's contact information from https://www.work.ua/resumes/18568434/

Work experience

Full stack software engineer

from 05.2023 to now (3 years 5 months)
Freelance, Дистанційно (IT)

•Built full-stack applications end to end: backend in Node.js / Nest.js and PHP / Laravel, frontend in React, Next.js, Vue.js, Angular, and Svelte, with real-time data delivery over WebSockets, and designed parallel background services and task queues to handle real-time data ingestion, idempotent event processing, and high-load traffic across independently scalable workers.

•Developed Solidity smart contracts for EVM networks: ERC-20 token with a 7-level referral system, casino bank contract, and bonus payout contract.
•Built automated trading / market-making software for EVM networks: continuous on-chain data ingestion, order execution, and volume support in real-time.

•Developed an AI sales agent for a travel business that automatically detects customer intent and recommends relevant tours and services.

•Optimized page load speed on legacy systems to a 95+ Google PageSpeed score, plus horizontal scaling and Redis caching to improve throughput. https://pagespeed.web.dev/analysis/https-test-xchangeart-com-en/rmn056ou5y?hl=ru&form_factor=mobile

Middle PHP Developer

from 07.2021 to 05.2023 (1 year 11 months)
Evogence, Київ (IT)

•Developed and maintained backend applications and APIs for terminal systems serving US-based clients.
•Worked in a team using a Git pull-request workflow with code review and branching strategy.

Full stack web developer

from 07.2016 to 07.2021 (5 years)
Freelance, Дистанційно (IT)

•Built backend logic and APIs in PHP and Node.js with MySQL, implemented real-time features via WebSockets.
•Managed diverse client projects independently: from data modeling and API design to frontend integration.

Web developer

from 10.2015 to 07.2016 (10 months)
Genius Marketing, Київ (IT)

•Built landing pages and blogs, integrated WordPress sites.

Web developer

from 06.2012 to 08.2012 (3 months)
Bitrix, Київ (IT)

•Developed websites based on the 1C-Bitrix CMS

Web Developer

from 06.2011 to 08.2011 (3 months)
R25 Studio, Київ (IT)

•Built website markup/layout and deployed sites on the DLE CMS.

Web developer

from 10.2010 to 07.2016 (5 years 10 months)
Freelance, Київ (IT)

•Worked continuously on a freelance basis (aside from the full-time roles above), mainly doing website markup/layout and small PHP scripts.

Education

Київський Національний Економічний Університет імені Вадима Гетьмана

Інформаційні системи і технології, Київ
Unfinished higher, from 2009 to 2013 (4 years)

Additional education and certificates

GoIT JavaScript

2016, 3 місяці

Knowledge and skills

• Ethers.js
• Docker
• NestJS
• Redis
• OpenCart
• Telegram API
• Налаштування Telegram-ботів
• Yii
• RabbitMQ
• Svelte.js
• Solidity
• Angular
• Vue.js
• Laravel
• Організованість
• HTML
• CSS
• JavaScript
• Git
• GitHub
• React
• SQL
• MySQL
• Node.js
• PHP
• TypeScript
• JQuery
• WordPress
• Python
• PostgreSQL
• Figma
• Hardhat
• Smart Contracts

Language proficiencies

English — average

Additional information

Senior Full-Stack Software Engineer & Automation Specialist

As a Senior Software Engineer, I am responsible for building and creating web systems, automation solutions, and Web3/FinTech applications. I take on the full engineering process from database design and back-end systems to front-end applications and server installations, while making sure that the platform works well. Specifically, I am interested in development tools that ensure the highest level of performance (such as having the overall performance of over 95 on Google PageSpeed or backend latency of less than 10ms). My professional knowledge covers various aspects of back-end development (Node.js / Nest.js, Python, PHP) and front-end development (Next.js, Svelte, React, Vue.js, Angular). In addition to that, I have worked with REST, GraphQL, and WebSocket APIs, as well as event-driven technologies based on BullMQ and RabbitMQ, and databases (PostgreSQL, MySQL, Redis). I work in the field of Solidity smart contracts, algorithmic trading on CEX/DEX (Binance, Bybit, OKX, Uniswap, PancakeSwap) system development, building automation solutions involving CRM integration with such services as KeyCRM, marketplaces, payment systems, working with Telegram bots, distributed scrapers, and AI-based products (such as Claude AI and GitHub Copilot).

Portfolio

Automated Market-Making Bot for EVM Networks Blockchain / Web3

Built a complete software solution for automated token buying/selling and trading volume support. Implemented wallet creation, fund distribution, and custom trading rules. Compatible with all EVM networks (Ethereum, BNB, Polygon, Arbitrum). The system processes streaming market data in real time.

Referral EVM Smart Contract Blockchain / Solidity

Wrote a fully functional token contract for any EVM network with nickname-based referral registration. Implemented percentage accruals on every buy/sell by referrals across 7 levels with a claim mechanism. Two access tiers: Premium (7 levels) and Standard (3 levels). Fully tested.

Friends of Fashion — Highload Web Application Web Development / Angular + Laravel friendsoffashion.com.ua

Worked on a project built on Angular + Laravel stack. Prepared the system for high load by scaling to 5 replicas for traffic distribution, plus Redis caching. Full cycle: architecture, backend API, frontend integration, and deployment.

LandingCreator.ai SaaS / TypeScript Monorepo / Web3 github.com/mevdad/landing-creator

SaaS platform for publishing token landing pages on custom domains with live on-chain market data (SSE price/candle/trade feeds), in-page swaps (PancakeSwap V2 on EVM, Raydium CPMM on Solana), and cross-chain payments via Heleket with automated treasury distribution. Built as a TypeScript monorepo: Next.js frontend, NestJS/Fastify API, and eight independently scalable background workers sharing a framework-free domain layer, with server-side-only transaction signing and idempotent event handling
throughout.

Giveaway Bot — @wizard_giveaway_bot Telegram Bot / Python github.com/mevdad/giveaway_bot
Built a full-featured Telegram giveaway bot in Python (aiogram) with PostgreSQL storage, deployed as a systemd service. Features: configurable giveaway creation, two participation modes (button-click with anti-bot captcha, or keyword in comments), animated live winner draw, end-of-contest notifications, and public result verification.