• Designed and developed scalable microservices for eCommerce platforms, ensuring performance andreliability.• Integrated blockchain solutions for cryptocurrency transactions, smart contracts, and decentralized paymentsystems.• Optimized database performance using MySQL and Redis, improving query execution times and systemefficiency.• 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 technicalsolutions.• 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 andKubernetes.• 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 developmentpractices.• 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 robustbackend systems.• Proficient in using Symfony components like Doctrine, Twig, and the Symfony Console for advanced PHPdevelopment.• Experience in developing complex business logic, APIs, and integrations using Yii2 framework.• Familiarity with ORM tools like Propel, Doctrine, and Eloquent for database management in PHP frameworks.• Skilled in utilizing PHP CLI tools for automation, deployment, and command-line tasks in Laravel, Symfony, andYii2.• Strong understanding of PHP-based testing frameworks such as PHPUnit and Behat, especially in Laravel andSymfony environments.• Proficient in developing custom modules, plugins, and extensions for PHP frameworks to extend functionality.• Experience in optimizing and refactoring legacy PHP codebases to improve performance and maintainability.

• Designed and developed scalable microservices for eCommerce platforms, focusing on performance,reliability, and maintainability.• Integrated blockchain services into existing systems, enabling cryptocurrency transactions and supportingdecentralized payment solutions.• Optimized database performance using MySQL and Redis, resulting in significant improvements in queryexecution times and overall system efficiency.• Collaborated on the design and implementation of security measures to protect APIs, backend systems, andsensitive data from potential vulnerabilities.• Developed RESTful APIs and implemented API authentication and authorization mechanisms to ensure securedata exchange.• Worked closely with cross-functional teams to understand business requirements and translate them intotechnical solutions.• Troubleshot and resolved performance bottlenecks in high-traffic eCommerce applications, ensuring smoothuser experiences.• Maintained and improved the scalability of existing applications, ensuring they could handle increased trafficand data volumes.• Leveraged blockchain technologies to develop smart contracts, supporting the automation of business logicand improving transparency.• Assisted in the evaluation and integration of third-party services and APIs, enhancing system functionality andinteroperability.• Participated in code reviews, knowledge sharing, and best practice discussions to promote a culture ofcontinuous improvement.• Implemented monitoring and alerting systems to ensure high availability and performance of criticaleCommerce 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 platformslike 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 skilldevelopment.• Participated in the evaluation of new technologies and tools to improve development practices and teamefficiency.• Developed and customized themes, plugins, and extensions for WordPress, enhancing site functionality andperformance.• Created custom modules and contributed to the development of Drupal-based applications, ensuringscalability and maintainability.• Designed and developed custom templates, components, and modules for Joomla to meet specific businessrequirements.• Built and customized eCommerce solutions on platforms like PrestaShop, Shopify, and OpenCart, improvinguser experience and sales.• Integrated third-party services and APIs into WordPress, Drupal, Joomla, PrestaShop, Shopify, and OpenCartsystems.• Developed custom payment gateways, shipping solutions, and other integrations for eCommerce platformslike PrestaShop and Shopify.• Designed and developed custom solutions using Laravel, Symfony, and Yii2 frameworks for high-loadapplications.• Worked on extending the core functionality of Laravel and Symfony applications by building custom modulesand components.• Developed scalable APIs and integrations for custom-built and third-party systems using Laravel, Symfony, andYii2.• Implemented performance optimizations, caching strategies, and code refactoring in WordPress, Drupal, andJoomla.• Created custom themes and plugins for Shopify, ensuring compatibility with Shopify’s ecosystem and APIintegrations.• Built custom modules and extensions for PrestaShop, Shopify, and OpenCart, enhancing store functionalityand user experience.• Designed and implemented scalable backend systems using Laravel, Symfony, and Yii2 for eCommerce andCMS platforms.• Worked with front-end technologies like React, Angular, and Vue.js to build custom themes and componentsfor CMS and eCommerce platforms.• Developed custom RESTful APIs for eCommerce and CMS platforms, ensuring secure data exchange andintegration with external services.