Work Experience
Lead Full-Stack Engineer & Product Architect, PlagTV (EdTech, Language Learning, AI)
Duration: Feb 2025 - Sep 2025
Summary:Led product architecture and full-stack development for an educational video platform for language learners, owning end-to-end delivery from requirements to production launch.
Key Responsibilities:
- Designed system architecture from raw requirements covering UX/UI, data layer, backend services, infrastructure, CI/CD, and AI personalization module;
- Built learning features with video playback, interactive subtitles, vocabulary system, and adaptive AI adjusting to learner progress;
- Organized hiring and onboarded a 4-engineer team with documentation and architecture maps;
- Delivered production-ready platform for market launch and scaling.
Technologies:React, Next.js, Vue.js, Node.js, NestJS, TypeScript, C#, .NET, Python, Anthropic, LangChain, FAISS, MongoDB, PostgreSQL, Redis, Docker, Kubernetes, Google Cloud.
Senior Full-Stack Engineer & Frontend Architect, Darkbot.io (FinTech, Crypto Trading, ML)
Duration: Jul 2024 - Jan 2025
Summary:Joined to elevate engineering standards, stabilize the platform, and establish reliable development processes for a crypto trading system.
Key Responsibilities:
- Rebuilt frontend architecture with modular structure, centralized state management, and type safety;
- Removed architectural bottlenecks and fixed backend failures in trading execution and account management;
- Established CI/CD pipelines, automated testing, and code review standards;
- Enabled regular releases and onboarding of first users.
Technologies:React, Next.js, TypeScript, PHP, Laravel, MySQL, Redis, Kafka, RabbitMQ, Docker, Terraform, AWS.
Technical Consultant & Product Architect, Emotive.io (MarTech, E-commerce)
Duration: May 2024 - Mar 2025
Summary:Provided technical consultation and product strategy guidance for a communication-automation platform for e-commerce and DTC brands.
Key Responsibilities:
- Defined modernization strategy and product evolution roadmap;
- Mentored junior and mid-level engineers to improve engineering standards;
- Restructured engineering organization and participated in technical hiring;
- Resolved critical platform issues and stabilized operations during high-load events.
Senior Full-Stack Engineer & Engineering Lead, Emotive.io (MarTech, E-commerce)
Duration: Oct 2020 - May 2024
Summary:Owned frontend architecture and full-stack engineering, driving platform transformation and building engineering organization from the ground up.
Key Responsibilities:
- Unified fragmented micro-applications into a single platform;
- Migrated legacy monolithic system to microservice architecture;
- Built production-ready chat system, AI support assistant, and operator console;
- Hired and structured frontend, backend, and QA teams;
- Stabilized development and delivered product improvements.
Technologies:React, GraphQL (Apollo), TypeScript, Node.js, Python, Django, Flask, OpenAI API, LangChain, PyTorch, PostgreSQL, Redis, Kafka, ClickHouse, Elasticsearch, Docker, Terraform, AWS.
Lead Frontend Engineer, CoinFlex (FinTech, Crypto Trading)
Duration: Jan 2020 - Oct 2020
Summary:Built UI architecture from scratch and led frontend development for a high-load crypto trading platform.
Key Responsibilities:
- Built entire UI architecture delivering high-performance real-time trading interface;
- Implemented ultra-fast real-time data flows handling thousands of updates per second;
- Contributed to backend code and API integration;
- Delivered production-ready trading environment comparable to major platforms.
Technologies:React, GraphQL (Relay), TypeScript, Node.js, Java, Spring Boot, Python, PostgreSQL, Redis, Kafka, Elasticsearch, Docker, Kubernetes, Grafana, AWS.
Founding Full-Stack Engineer & Acting CTO, FinRev (FinTech, Energy, Web3)
Duration: Apr 2019 - Dec 2019
Summary:Designed and built MVP of a tokenized energy exchange platform, establishing system architecture and engineering organization from scratch.
Key Responsibilities:
- Designed and built MVP covering smart contracts, token marketplace, exchange mechanics, and energy accounting flow;
- Created exchange dashboard and integrated wallet functions;
- Established R&D office in Kyiv and conducted technical hiring;
- Delivered production-ready MVP for pilot tests.
Technologies:Vue.js, TypeScript, Node.js, Python, Go, web3.js, Ethereum, Polygon, Solidity, Docker, Kubernetes, Terraform, Google Cloud.
Lead Frontend Engineer & Product Architect, Nimses (Social Media, AdTech, FinTech, Web3)
Duration: Jun 2017 - Mar 2019
Summary:Led frontend architecture and development across multiple platforms within a social-media and blockchain ecosystem.
Key Responsibilities:
- Established frontend architecture standards across distributed teams;
- Built and launched Exchange and Ads platforms;
- Led 15+ engineers and scaled organization by hiring 25+ senior engineers;
- Integrated Exchange, Ads, and Music platforms into a unified ecosystem.
Technologies:React, GraphQL (Apollo), TypeScript, Node.js, Go, PostgreSQL, Kafka, ClickHouse, Elasticsearch, Docker, Kubernetes, AWS.
Full-Stack Engineer, AVyS Wholesale LDA (Telecom, VoIP)
Duration: Mar 2015 - May 2017
Summary:Architected and developed end-to-end SaaS platform for virtual PBX systems from prototype to production.
Key Responsibilities:
- Architected and developed SSR-based platform, dashboard, and REST APIs;
- Built Visual Flow Builder for drag-and-drop IVR construction;
- Defined technology stack and managed deployment pipelines;
- Led product growth to first 500 users.
Technologies:React, Node.js, Express, MongoDB, AWS.
Education
- Master's degree, Economic Cybernetic,Taras Shevchenko National University of Kyiv (2012 - 2014).
- Bachelor's degree, Economic Cybernetic,Taras Shevchenko National University of Kyiv (2008 - 2012).
Upstaffer since December, 2025
