Contact information

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Work experience

Senior PHP Developer

from 08.2019 to now (6 years)
TELENORMA HOLDING AG, Киев (IT)

• Designed and developed scalable microservices for eCommerce platforms, ensuring performance and reliability.
• Integrated blockchain solutions for cryptocurrency transactions, smart contracts, and decentralized payment
systems.
• Optimized database performance using MySQL and Redis, improving query execution times and system
efficiency.
• Developed RESTful APIs and implemented security measures to protect APIs and backend systems.
• Collaborated with cross-functional teams to gather business requirements and translate them into technical
solutions.
• Troubleshot performance bottlenecks in high-traffic eCommerce applications, ensuring optimal performance.
• Mentored junior developers, fostering knowledge sharing and guiding best practices.
• Designed and maintained CI/CD pipelines, improving deployment efficiency and reducing downtime.
• Developed caching strategies to enhance response times and reduce database load.
• Worked with DevOps teams to optimize microservices deployments on cloud platforms like AWS and
Kubernetes.
• Evaluated and integrated third-party services and APIs to enhance system functionality and interoperability.
• Developed smart contracts and blockchain-based solutions, ensuring security, scalability, and transparency.
• Participated in code reviews, maintaining code quality standards and best practices.
• Led the evaluation and adoption of new tools and technologies to improve team efficiency and development
practices.
• Proficient in writing and deploying smart contracts using Solidity.
• Experience with blockchain-related libraries and tools (e.g., Web3.js, ethers.js, Truffle).
• Knowledge of decentralized applications (dApps) and how they interact with blockchain networks.
• Familiarity with blockchain-based wallets and integration with external payment systems.
• Understanding of cryptographic principles and security best practices related to blockchain systems.
• Experience working with token issuance, transfers, and smart contract functions.
• Ability to deploy, manage, and interact with blockchain nodes (Ethereum nodes, BSC nodes, etc.).
• Strong understanding of decentralized finance (DeFi) and decentralized applications (dApps) development.
• Familiarity with blockchain or cryptocurrency exchanges and APIs.
• Experience with deploying blockchain solutions on cloud platforms like AWS or GCP.
• Proficient in designing and implementing blockchain-based authentication mechanisms.
• Proficient in developing and maintaining PHP applications using Laravel, Symfony, and Yii2 frameworks.
• Strong experience in designing and implementing scalable and maintainable PHP architectures.
• Expertise in creating and optimizing PHP-based web applications, ensuring high performance and reliability.• Deep understanding of Laravel’s Eloquent ORM, service providers, and middleware for building robust backend
systems.
• Proficient in using Symfony components like Doctrine, Twig, and the Symfony Console for advanced PHP
development.

Middle PHP Developer

from 05.2018 to 08.2019 (1 year 3 months)
MiRAK - Norwegian ICO Agency, Удаленно (IT)

• Designed and developed scalable microservices for eCommerce platforms, focusing on performance, reliability,
and maintainability.
• Integrated blockchain services into existing systems, enabling cryptocurrency transactions and supporting
decentralized payment solutions.
• Optimized database performance using MySQL and Redis, resulting in significant improvements in query
execution times and overall system efficiency.
• Collaborated on the design and implementation of security measures to protect APIs, backend systems, and
sensitive data from potential vulnerabilities.
• Developed RESTful APIs and implemented API authentication and authorization mechanisms to ensure secure
data exchange.
• Worked closely with cross-functional teams to understand business requirements and translate them into
technical solutions.
• Troubleshot and resolved performance bottlenecks in high-traffic eCommerce applications, ensuring smooth
user experiences.
• Maintained and improved the scalability of existing applications, ensuring they could handle increased traffic
and data volumes.
• Leveraged blockchain technologies to develop smart contracts, supporting the automation of business logic and
improving transparency.
• Assisted in the evaluation and integration of third-party services and APIs, enhancing system functionality and
interoperability.
• Participated in code reviews, knowledge sharing, and best practice discussions to promote a culture of
continuous improvement.
• Implemented monitoring and alerting systems to ensure high availability and performance of critical
eCommerce services.
• Developed and maintained CI/CD pipelines to streamline the deployment process and reduce downtime.
• Collaborated with DevOps teams to enhance the deployment and scaling of microservices on cloud platforms
like AWS or Kubernetes.
• Designed and optimized caching strategies to improve response times and reduce database load.
• Provided technical leadership and mentorship to junior developers, fostering knowledge sharing and skill
development.
• Participated in the evaluation of new technologies and tools to improve development practices and team
efficiency.
• Developed and customized themes, plugins, and extensions for WordPress, enhancing site functionality and
performance.
• Created custom modules and contributed to the development of Drupal-based applications, ensuring scalability
and maintainability.
• Designed and developed custom templates, components, and modules for Joomla to meet specific business
requirements.
• Built and customized eCommerce solutions on platforms like PrestaShop, Shopify, and OpenCart, improving
user experience and sales.
• Integrated third-party services and APIs into WordPress, Drupal, Joomla, PrestaShop, Shopify, and OpenCart
systems.
• Developed custom payment gateways, shipping solutions, and other integrations for eCommerce platforms like
PrestaShop and Shopify.• Designed and developed custom solutions using Laravel, Symfony, Yii2 framework.

Education

НТУУ КПИ им. Игоря Сикорского

Инженерно-физический факультет, Киев
Higher, from 2012 to 2018 (6 years)

https://kpi.ua/

Additional education and certificates

Контакт (PHP Developer)

2012, 6 месяцев

Knowledge and skills

• PHP
• MySQL
• CSS
• HTML
• JavaScript
• JQuery
• Git
• Yii
• AJAX
• Linux
• Bootstrap
• WordPress
• Ubuntu
• SVN
• Docker
• OpenCart
• XML
• Apache HTTP-сервер
• Jira
• JSON
• CMS
• Angular
• API
• MODX
• PrestaShop
• Open Server
• CURL
• Google API
• Google
• Google Analytics
• SketchUp
• OcStore
• ImageCMS
• PSD
• Умение анализировать
• Zeplin
• React
• Ecommerce
• Gambio
• PhpStorm
• Symfony
• Slim
• REST API
• Joomla!
• SASS
• LESS
• PHPUnit
• SOLID Principles
• PostgreSQL
• MongoDB

Language proficiencies

• English — advanced
• Ukrainian — fluent
• German — beginner

Additional information

With over 8 years of professional experience, I specialize in developing scalable, secure, and high-performance
solutions, including blockchain-integrated systems and traditional high-load platforms. My skill set includes deep
knowledge of PHP frameworks, blockchain technologies, API design, and optimizing systems for millions of users. I am
passionate about delivering innovative solutions that bridge blockchain technology and conventional applications.