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Work experience

Career break

from 04.2025 to 04.2026 (1 year)
Full stack engineer

Responsibilities:
Led application architecture design from the ground up for a high-load entertainment platform, defining modular structure, state management strategy, and scalable integration patterns to support rapid feature delivery.
Provided technical leadership across the team, establishing coding standards, conducting code reviews, and driving key architectural decisions aligned with long-term scalability.
Designed and implemented integration architecture for 100+ external entertainment providers using unified API layers, ensuring consistency and maintainability across diverse services.
Built and optimized complex payment infrastructure, including fiat and crypto transactions, with multiple third-party payment integrations and secure processing flows.
Delivered core platform features such as KYC (Know Your Customer) workflows, user account management (balances, transaction history, settings), and financial operations handling.
Coordinated frontend-backend collaboration by defining API contracts, aligning data models, and contributing to Node.js backend services for transaction processing and performance optimization.
Leveraged Node.js ecosystem (e.g., REST/GraphQL services, event-driven architecture) to enhance system scalability and improve backend efficiency under high load.
Actively integrated LLM-powered development tools and AI agents into the workflow to accelerate delivery, automate routine engineering tasks, and improve code quality.
Led refactoring initiatives for legacy code, improving maintainability, reducing technical debt, and enabling horizontal scalability of the system.
Optimized application performance through advanced rendering strategies, efficient network handling, caching mechanisms, and edge-case resilience.
Collaborated closely with product and business stakeholders to refine requirements, balancing development speed with system reliability.
Improved development processes and CI/CD workflows, increasing release velocity and reducing production incidents.

As a result, we delivered a highly scalable and resilient platform capable of handling high transaction volumes and complex financial operations without compromising performance. Reduced time-to-market for new features through well-designed architecture and AI-assisted development workflows. Increased system stability and reduced production issues by enforcing engineering standards and proactive performance optimization. Enabled seamless integration of 100+ providers, significantly expanding business capabilities and revenue streams. Improved maintainability and long-term scalability by refactoring legacy components and minimizing technical debt. Enhanced development efficiency and team productivity through adoption of LLM tools and partial automation of routine tasks. Built a flexible platform architecture that allowed rapid adaptation to evolving business requirements and market demands.

Lead Frontend Engineer

from 03.2022 to 04.2025 (3 years 2 months)
UKRSIBBANK BNP Paribas Group, Київ (Фінанси, банки, страхування)

Led development of high-performance web applications using MV* frameworks with TypeScript. Translated Figma designs into production-ready UI with strong attention to visual detail and user experience. Implemented OpenAPI integrations and built scalable frontend architecture for complex applications.

Defined project structure, modularization strategy, and state management patterns. Made key architectural decisions including REST vs GraphQL integrations, SSR vs CSR strategies, and performance trade-offs. Led refactoring initiatives to reduce technical debt and ensure long-term maintainability and scalability across teams.

Built reusable UI component libraries and integrated frontend systems with backend APIs and authentication services. Improved application performance through code splitting, lazy loading, bundle optimization, and profiling-based bottleneck analysis. Optimized large data rendering using virtualization and memoization techniques, improving Core Web Vitals and overall UX metrics.

Established engineering standards including linting, formatting, and code quality guidelines. Led regular code reviews, implemented unit and integration testing, and collaborated on CI/CD pipeline improvements to ensure reliable deployments and reduce production incidents.

Mentored junior and mid-level developers, provided architectural guidance, and facilitated technical discussions within the team. Participated in technical interviews and hiring processes.

Collaborated closely with product managers, designers, and backend engineers to translate business requirements into scalable technical solutions. Communicated technical risks and trade-offs to stakeholders and contributed to realistic delivery planning.

Ensured frontend security best practices, including protection against XSS, CSRF, and safe handling of sensitive client-side data.

Lead Frontend Engineer

from 01.2021 to 03.2022 (1 year 3 months)
Luxinten, Дистанційно (IT)

Led the development of scalable and high-performance frontend applications, focusing on delivering reliable and user-centric products with modern web technologies.

Collaborated closely with product managers and stakeholders to design and implement features with meaningful business impact. Translated product requirements into practical technical solutions while considering long-term scalability and maintainability.

Worked with designers to convert Figma designs and product concepts into clean, intuitive, and production-ready UI components, ensuring high standards of usability and visual quality.

Continuously improved application performance by identifying bottlenecks, optimizing rendering, and implementing techniques such as code splitting, lazy loading, and efficient state management.

Maintained strong engineering standards by writing clean, maintainable, and reusable code, and by promoting testing practices to ensure system reliability and stability.

Mentored team members through code reviews, architectural discussions, and knowledge sharing, helping maintain high development standards across the team.

Designed and implemented reusable UI component libraries to accelerate development and ensure consistent design across multiple products.

Integrated frontend applications with backend services using RESTful and GraphQL APIs, following OpenAPI specifications to ensure reliable client-server communication.

Led architectural improvements and refactoring initiatives to reduce technical debt and improve long-term system performance and maintainability.

Senior Frontend Engineer

from 08.2019 to 12.2020 (1 year 5 months)
Yakaboo.ua, книжкова платформа, Київ (Роздрібна торгівля)

Built and delivered high-quality frontend features for web applications, collaborating closely with design teams to create modern, intuitive, and visually polished user interfaces. Translated Figma designs into production-ready implementations with strong attention to visual detail and UI consistency.

Developed clean, maintainable, and scalable frontend code, contributing to reusable component libraries that accelerated development and improved consistency across projects. Identified UI inconsistencies and proactively resolved them to maintain a high standard of user experience.

Participated in the full product development lifecycle, including requirement analysis, design discussions, and implementation of new functionality. Analyzed and estimated backlog tasks while ensuring delivered work met high quality standards before QA.

Acted as a technical lead within task scopes by guiding implementation approaches, mitigating risks, and ensuring performance, maintainability, and code quality. Refactored and modernized legacy code where necessary and introduced new technologies to improve existing systems.

Collaborated closely with team leads, product managers, marketing stakeholders, and cross-functional teams to design, develop, and evaluate product features, including client-side functionality and A/B testing modules.

Contributed to deployment processes and CI/CD pipelines, supported production releases, and handled escalation for production issues when required. Worked with IT, security, and R&D teams to ensure compliance with engineering and security best practices.

Improved team capabilities through code reviews, knowledge sharing, and mentorship. Wrote and maintained unit tests, technical documentation, and supported knowledge transfer within the team while promoting a positive and collaborative engineering culture.

Senior Frontend Engineer

from 01.2017 to 08.2019 (2 years 8 months)
Ciklum, Київ (IT)

Led frontend development for a key product area, shaping technical direction and influencing architecture, process stability, and long-term maintainability. Took ownership of major features and technical solutions, ensuring reliable delivery and high engineering standards.

Contributed technical ideas based on evolving frontend technologies and industry trends, helping improve development practices and tooling. Applied and continuously refined best practices in development processes, code quality, and collaboration.

Developed and maintained modern, high-quality user interfaces in accordance with current industry standards. Analyzed and estimated UI mockups and wireframes to assess technical feasibility and implementation timelines.

Maintained and improved code quality standards across the project through well-structured, maintainable code and clear documentation. Created technical documentation and well-commented code to support long-term maintainability and team knowledge sharing.

Collaborated proactively with team members and clients to ensure clear communication, alignment on requirements, and efficient delivery of features.

Implemented and maintained CI/CD pipelines using GitHub Actions to support automated builds, testing, and reliable deployment processes.

Fullstack Engineer

from 07.2015 to 12.2016 (1 year 6 months)
ЛігаБізнесІнформ, Київ (ЗМІ, медіа)

Developed and maintained frontend and backend services within a microservices architecture. Integrated APIs between frontend and backend systems, optimizing requests and working with multiple communication protocols including HTTP, gRPC, SSE, and GraphQL.

Worked with databases such as PostgreSQL (AWS RDS) and Redis, including schema design, query development, and performance optimization. Designed and maintained containerized services using Docker to support scalable and reliable deployments.

Managed technical debt through continuous refactoring and architectural improvements to enhance maintainability and system performance. Implemented CI/CD pipelines and DevOps practices, including GitHub Actions integration and automated deployment configurations.

Ensured high code quality by conducting code reviews and implementing testing strategies using Jest, Playwright, and end-to-end tests. Wrote clean, maintainable, and well-documented code following modern engineering best practices.

Delivered features end-to-end, covering UI implementation, API development, and database changes. Worked on service-to-service integrations across distributed systems and investigated complex cross-service issues to maintain stable production releases.

Contributed to team development through technical discussions, mentorship of junior developers, and knowledge sharing within the engineering team.

Frontend Developer

from 06.2012 to 07.2015 (3 years 2 months)
Lindenvalley GmbH, Дистанційно (IT)

Led the frontend engineering team in adopting and integrating Progressive Web App (PWA) technologies to enhance mobile user experience and offline capabilities. Collaborated closely with UX designers and product managers to develop dynamic, data-driven interfaces, improving user engagement by 20%. Evaluated and integrated modern JavaScript build tools such as Webpack, Babel, and ESLint to optimize build performance and maintain high code quality.

Built scalable and maintainable component architectures, integrated frontend applications with APIs, and implemented client-side business logic. Optimized application performance, improved overall user experience, and ensured code quality through clean, well-structured TypeScript implementations.

Participated in code reviews and technical discussions to maintain engineering standards and best practices. Controlled and monitored task delivery, documented internal technical processes, and created technical documentation with well-commented code. Wrote and maintained unit tests to ensure application reliability and maintainability across projects.

Frontend Developer

from 12.2006 to 06.2012 (5 years 7 months)
GeeksForLess, Миколаїв (IT)

Independently organized and managed development tasks, including effort estimation, prioritization, and clear communication with team members and stakeholders. Built and maintained marketing landing pages while ensuring high standards of performance, usability, and visual quality.

Collaborated closely with designers to accurately implement UI components based on design mockups and improve overall user experience. Translated design concepts into responsive, production-ready interfaces while maintaining strong attention to layout accuracy and visual consistency.

Developed and enhanced internal system tools, focusing on improving UI/UX and usability for internal users. Debugged and improved existing layouts and frontend logic to ensure stability and maintainability.

Integrated frontend applications with REST APIs and ensured reliable data communication between client and server. Maintained clean, reusable, and testable code following modern frontend development practices.

Participated in planning sessions and frontend architecture discussions, contributing ideas to improve application structure, scalability, and long-term maintainability.

Optimized web pages for performance, loading speed, and accessibility, ensuring a smooth user experience across devices and browsers. Continuously improved development practices while learning and growing alongside the team.

Education

Чорноморський національний університет імені Петра Могили

Інтелектуальні системи прийняття рішень, факультет комп'ютерних наук, Миколаїв
Higher, from 2006 to 2009 (3 years)

Speciality: Intelligent systems of making decisions. Master diploma

Achievements:
Graduated from the Faculty of Computer Science with a Master’s degree, specializing in intelligent systems. The program focused on advanced techniques in artificial intelligence and machine learning applied to decision-making processes. During the studies, particular attention was given to data analysis, predictive modeling, and the development of intelligent algorithms used in decision support systems and complex problem-solving environments.

Bachelor degree in Programming

Миколаїв
Secondary, from 2001 to 2006 (5 years)

Completed a Bachelor’s degree program with a focus on programming and engineering, receiving a professional technical education. The program provided a strong foundation in software engineering principles and design patterns relevant to front-end development. It also included practical training in RESTful API design and integration, enabling efficient client–server communication in modern web applications.

Additional education and certificates

ICAgile certified professional

2017
Certificate

Курси англійської мови

2024, 6 місяців

AWS Certified Solutions Architect Professional

2024

Knowledge and skills

• TypeScript
• React
• Redux
• Redux Toolkit
• GraphQL
• GraphCommerce
• Hygraph
• Docker
• GitLab CI/CD
• HTML5
• CSS / SASS / LESS
• Grunt
• Webpack
• Vite
• Bootstrap
• Foundation
• Php
• MySql
• Git
• Svn
• JIRA
• Wrike
• Redmine
• Basecamp
• Figma
• GitHub
• Gulp
• Adobe Photoshop
• Node.js
• Python
• Next.js
• Vue.js
• Angular
• Angular Material
• Nuxt.js
• Увага до деталей
• Технічна обізнаність
• Самомотивація
• Дисциплінованість
• IC Agile Certificate
• OpenAPI
• SQL
• MongoDB
• Уважність

Language proficiencies

• English — above average
• Ukrainian — fluent

Additional information

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