1. Led several different teams of developers in the successful migration of legacy systems to modern technologies, resulting increase in site performance and reducing load times: ● Drupal 7 → Drupal 8/9/10. ● PHP 7.x → PHP 8.x. ● jQuery → vanilla JavaScript (ES6). ● Bootstrap 3/4 → Bootstrap 5. 2. Implemented responsive design principles and WCAG compliance to create user-friendly interfaces, resulting in an increase in user engagement. 3. Collaborated with cross-functional teams to design and implement scalable architecture for high-traffic websites, resulting in increase in site performance.

● Developed landing pages tailored to specific events, actions, or campaigns, collaborating closely with marketing and communication teams. ● Led the development of new features and functionalities to extend the corporate website’s capabilities, addressing evolving business needs and user requirements. ● Implemented enhancements to improve website usability, accessibility, and search engine optimization (SEO), ensuring maximum visibility and engagement. ● Collaborated with cross-functional teams to prioritize tasks, manage project timelines, and deliver high-quality solutions within budget constraints. Throughout my tenure, I played a key role in maintaining and enhancing the corporate website, ensuring it effectively represented GridGain brand and offerings to customers, partners, and stakeholders.

● As a member of two large development teams, I contributed to the creation of an intranet portal and the development of a corporate website. ● Throughout both projects, I collaborated closely with team members, adhered to project timelines and milestones, and leveraged my technical expertise to deliver high-quality solutions that met or exceeded stakeholders expectations.

I spearheaded the design and development of several critical projects, including corporate website development and medical CRM development. ● Collaborated closely with stakeholders, including marketing and branding teams, to understand business objectives and user requirements. ● Conducted comprehensive research to identify industry trends, competitor websites, and user preferences, informing the design and development process. ● Employed responsive design principles, WCAG compliance and SEO best practices to optimize website accessibility and ranking in search engine results, driving organic traffic and maximizing online presence. ● Designed and developed a comprehensive CRM system tailored to the unique requirements of healthcare providers, including patient management, appointment scheduling, etc. ● Provided training and support to administrators, enabling seamless adoption and utilization of the CRM system. Throughout both projects, I demonstrated technical expertise, and a deep understanding of industry-specific requirements to deliver high-quality solutions that met the needs of stakeholders and end-users.

As the lead developer responsible for designing, developing, and maintaining a large group of websites (over 40) for shopping malls and office centers, I undertook a diverse range of responsibilities and utilized various technologies to ensure the success and functionality of the projects. ● Utilized Drupal for robust back-end development, enabling flexible content management and customization for each website. Conducted migrations from older versions of Drupal and other websites, ensuring seamless transitions and data integrity. Result: Streamlined content management, improved site functionality, and ensured scalability to handle large volumes of traffic and data. ● Implemented responsive designs using HTML, CSS, Integrated Bootstrap framework and preprocessors like Less and SASS to ensure compatibility and consistency in UI/UX across websites, devices and browsers. Result: Enhanced user engagement, reduced bounce rates, and increased time spent on site, leading to improved customer satisfaction. ● Developed a centralized system for content delivery, enabling efficient management and distribution of content across all websites. Implemented automation processes to streamline content updates and ensure consistency across the platform. Result: Improved brand visibility, strengthened marketing efforts, and facilitated efficient content updates, resulting in enhanced user experience and loyalty. ● Set up and maintained infrastructure on Amazon Web Services (AWS) such as EC2, S3, RDS, and CloudFront to optimize websites performance and availability. Result: Increased scalability, reliability, and cost-effectiveness, enabling seamless handling of traffic spikes and ensuring consistent website performance even during peak periods. ● Integrated various third-party services and APIs to enhance website functionalities. Ensured seamless communication and data exchange between the websites and external services. ● Managed basic web server maintenance tasks: including setup, configuration, and optimization of LAMP stack (RHEL), nginx, and Redis. Overall, my efforts led to tangible results including improved website functionality, enhanced user experience, increased brand visibility, strengthened marketing efforts, and optimized server performance. These outcomes contributed to the overall success and competitiveness of the shopping malls and office centers’ online presence, driving increased traffic, visitors engagement, etc.

● Designed and developed (as well as maintained existing projects including migrations) many web applications (including multilingual with RTL support) with various functionality for customers around the world (Europe / UK / US / Canada / China, etc.): corporate websites, electronic commerce websites (including integrations with different payment gateways like PayPal, etc., both custom and out-of-the-box), news and governmental portals, CRMs (including medical), etc.