Serhii Kuzmenko Email & Phone Number

Киев

1. In 4 weeks implemented features that will be biggest revenue-growing items during 20242. Boosted conversion rates by 30% through the implementation of a strategic bonus system, gamifying product usage, and resulting in significantly heightened customer engagement.3. Slashed failure rates by 15% by creating a comprehensive system's events mechanism, providing swift system notifications, enhancing user engagement, and augmenting overall user experience.4. Amplified Page Speed metrics from 14 to 70 by significantly improving system performance and application optimization, reducing render time from 1.5s to 0.5s, leading to a dramatically enhanced user experience.5. Elevated the project's marketing capabilities by implementing a crucial module for integration with the Customer Data Platform, subscriptions, and mass notifications. This resulted in streamlined site statistics access and a highly improved client experience.6. Acknowledged for being an autonomous developer, demonstrating exceptional problem-solving abilities that often circumvent the need for managerial or team assistance.7. Played a pivotal role in mentoring junior developers, accelerating their understanding and proficiency with our platform.8. Fortified client services by promptly resolving critical system issues during high-stress periods, like New Year's Eve, demonstrating unwavering reliability and a commitment to seamless service provision.9. Innovated ready-to-use marketing features by expertly developing integrations with Google Ads, Facebook, and other platforms, providing clients with flexible, easy-to-adjust tools that boosted their marketing efficiency.

Киев

Key Achievements:1. I expedited the MVP development by 25% through the implementation of daily stand-ups and task reporting, resulting in an enhanced communication process and productivity within the team.2. I doubled the system performance by successfully migrating two internal systems to a new infrastructure, leading to a significant improvement in overall operational efficiency.3. I achieved an immediate application response, upgrading the project's technology through a strategic migration to Vue.js, leading to an elimination of application lag.4. I reduced system complexity by 40% and eliminated potential chaos by integrating Vuex for state management, resulting in more efficient prop management and a more maintainable system.5. I improved code comprehension by 60% and performance by 30% by rewriting 70% of the legacy code using modern JavaScript approaches, leading to a more readable, efficient, and updated codebase.

Киев, Украина

Key Achievements:1. Achieved a 50% reduction in content delivery by spearheading the migration of the entire system to the latest versions of the technology stack, resolving compatibility issues.2. Strengthened project security and halved spam attacks by implementing and integrating a robust security subsystem, fortifying the project against potential threats.3. Overcame a significant challenge by successfully implementing a flexible configuration mass notifications subsystem, enhancing the project's functionality.4. Spearheaded the adoption of React libraries and the abandonment of HTML+jQuery, streamlining application development and eliminating mundane tasks. This strategic decision prevented the project from becoming a legacy codebase.

Киев

Key Achievements:1. I saved 75% of the time on new project initiations by spearheading the adoption of modular JavaScript components and migrating styling to SCSS, which resulted in a rapidly scalable and highly reusable codebase and slashed design modification time to mere hours.2. I boosted productivity by 1000% by optimizing gulp rebuild time from over 40 seconds to less than 4 seconds, accelerating project workflows and enabling a seamless and more efficient development environment.3. I enhanced code comprehensibility and performance by rewriting a significant portion of the product using advanced JavaScript techniques, leading to a streamlined development process and an improved codebase.4. I improved bug verification efficiency by pioneering a transition from BrowserStack to mobile devices and tablets for testing, providing invaluable insights into product's native appearance and empowering swift troubleshooting and seamless user experiences.

Key Achievements:1. I boosted conversion rates by 30% by transforming the company's outdated website design, delivering an enhanced and user-friendly UX, contributing to a significant increase in user engagement.2. I achieved an unprecedented single-day revenue milestone in the company's history by independently building a full-fledged news website from scratch in just one workday, demonstrating exceptional proficiency and efficiency.3. I halved website development timelines by advocating for the strategic reuse and acquisition of WordPress modules, ensuring efficient and timely project execution.4. I enhanced the quality and reliability of the company's web applications by spearheading the adoption of BrowserStack for comprehensive cross-platform and cross-browser testing, ensuring seamless functionality and compatibility across diverse environments.

Bachelor'S Degree, Computer Science

Junior Specialist, Maintenance Of Software Systems And Complexes