Контактная информация

Соискатель указал телефон и эл. почту.

Получить контакты этого кандидата можно на странице https://www.work.ua/resumes/10688313/

Опыт работы

Backend Developer

с 11.2025 по наст. время (5 месяцев)
CPGA, Дистанційно (IT)

LinkedIn Automation (Impasto.io) — Built on TypeScript/NestJS/Prisma/PostgreSQL. Developed core automation engine for LinkedIn outreach, profile parsing via Playwright, RSC/BigPipe data extraction, and proxy management infrastructure. Architected scalable microservices handling high-volume account operations with session management and anti-detection mechanisms.
Instagram Automation — Built full-stack automation system in C#/WinForms + NestJS backend with Socket.IO real-time communication. Implemented large-scale Instagram user ID ingestion pipeline processing tens of millions of records, SOCKS5 proxy management with DataImpulse integration, SSL certificate pinning bypass via Frida, and traffic interception with mitmproxy for reverse engineering Instagram's private Android API. Built IPC-based task processor with SQLite monitoring.

Lead Backend Engineer

с 09.2025 по наст. время (7 месяцев)
Self Employment, Дистанційно (IT)

Designing and building a production-grade crypto arbitrage trading system from scratch as Lead Engineer. Architected a fully asynchronous, event-driven microservices platform on Java/Micronaut with ~300 microsecond inter-service latency via Aeron UDP. Integrated real-time order book streaming from Binance, Gate.io, and OKX simultaneously via WebSocket with per-exchange normalization and synchronization. Built hot/cold storage architecture using TimescaleDB for time-series market data and S3/Parquet for historical analysis. Implemented Redis-based distributed caching for real-time spread and liquidity data, eliminating per-tick database calls under high-frequency load. Designed a flexible strategy engine supporting multiple concurrent strategies with full revision history — each strategy revision independently configurable with its own parameters, legs, and execution rules. Built spread calculation engine, liquidity filtering, slippage estimation, and risk-aware order execution pipeline. Leveraged Java 21 virtual threads for high-throughput concurrent data processing across multiple exchange feeds.

Lead Backend Engineer

с 08.2025 по 12.2025 (5 месяцев)
Self Employment, Дистанційно (IT)

Built a production multi-chain wallet monitoring system as a solo engineer for an enterprise client. Supported 6 blockchains simultaneously: Ethereum, BNB Chain, Base, Arbitrum, Optimism, and Bitcoin. Implemented real-time transaction listener across all chains via self-hosted nodes, eliminating third-party RPC dependencies and ensuring low-latency data access. Built portfolio analysis engine with full token support — aggregating native assets and ERC-20 tokens with real-time conversion to base currency. Developed custom Solidity smart contracts for on-chain portfolio calculation, reducing off-chain computation overhead. Core engine built in Java, backend API layer in TypeScript, contracts in Solidity.

Lead Backend Engineer

с 03.2025 по 08.2025 (6 месяцев)
TradeOnePlus, Дистанційно (IT)

Founded engineered TradeOne+ — a fully automated crypto trading system exploiting listing/delisting announcements on Binance and Gate.io. Built the entire stack in Java from scratch: real-time announcement detection via WebSocket and undocumented exchange APIs, sub-20ms order execution pipeline, dynamic risk management engine with configurable strategy triggers based on exchange credibility scores and price movement thresholds. Implemented automated entry/exit logic with full position lifecycle management. Achieved end-to-end latency of under 20ms from signal detection to order placement.

Software Engineer

с 07.2024 по 03.2025 (9 месяцев)
Self Employment, Дистанційно (IT)

Built a high-performance solo end-to-end automation system for cross-platform e-commerce arbitrage between Allegro and eBay. Developed a TypeScript parser processing 10,000+ automotive parts per minute with real-time price monitoring and automated eBay listing publication. Implemented complex parts matching engine based on OEM part numbers, manufacturer codes, vehicle make/model/year compatibility — ensuring accurate cross-platform catalog synchronization. Built automated price update pipeline to maintain competitive pricing across thousands of active listings with zero manual intervention.

Lead Software Engineer

с 02.2024 по 07.2024 (6 месяцев)
Smart Sell Web, Дистанційно (IT)

Built the core high-performance Amazon product parser capable of processing 1M+ products per minute, designed for real-time cross-marketplace price comparison and arbitrage detection. Architected and managed a 100+ node Kubernetes cluster on AWS to handle massive parallel scraping workloads at scale. Leveraged AWS Lambda for event-driven processing and serverless task execution, reducing infrastructure overhead on burst workloads. Implemented distributed task orchestration, horizontal autoscaling, and fault-tolerant data pipelines ensuring continuous uptime under peak load. Optimized data ingestion throughput across the full stack — from raw marketplace data to structured catalog synchronization.

CTO / Lead Engineer

с 06.2023 по 02.2024 (9 месяцев)
AdWave, Дистанційно (IT)

Built and led engineering of a proprietary CRM platform for paid traffic management. Architected the full system from scratch and actively participated in hands-on development across the entire stack (TypeScript, Java, Python, PostgreSQL, Redis, RabbitMQ, OpenSearch).
Key engineering highlights:

Developed a custom Telegram client with multi-user account sharing, full message audit trail, and real-time financial security layer — unauthorized payment data triggered automatic message deletion, sender block, and admin alert
Built ad cabinet integrations with Facebook, Google, TikTok, and Telegram Ads, unifying traffic analytics across all platforms
Designed device fingerprinting system for user identification and session unification across touchpoints
Implemented complex RBAC across organizations → projects → teams (buyers and processors), with granular KPI tracking per employee — traffic volume, clicks, conversions, subscriptions, payments, closed leads
Built internal financial management module with full transaction control and reporting
Led a team of 25 engineers, owned all architectural decisions, infrastructure

ML/LLM Engineer & Software Developer

с 02.2023 по 06.2023 (5 месяцев)
Salesdep.ai, Дистанційно (IT)

Developed LLM-powered automation pipelines for sales workflows using TypeScript/NestJS. Designed and implemented backend microservices with RESTful and WebSocket APIs, integrated third-party CRM platforms, and built scalable data processing modules. Focused on high-throughput event-driven architecture and reliable AI-assisted automation for B2B sales operations.

Пауза в карьере

с 05.2019 по 01.2023 (3 года 9 месяцев)
Навчання

Образование

Среднее

Дополнительное образование и сертификаты

Нет дополнительного образования и сертификатов.

Знания и навыки

• GitHub
• PostgreSQL
• Docker
• REST
• SQLite
• Git
• Java
• Користувач ОС Linux
• Spring boot
• Spring Framework
• Hibernate
• SQL
• JavaScript
• TypeScript
• AWS
• Google Cloud Platform
• Highload Systems
• C#
• .NET Framework
• RabbitMQ
• NATS
• Apache Kafka

Знание языков

• Украинский — свободно
• Английский — средний
• Немецкий — начинающий