Katerina I

Software Engineer with 5+ years of experience building scalable web applications using TypeScript, Vue, Nuxt and Node.js. I've delivered customer-facing products used by millions of users, owned features from concept to production, and worked closely with product managers, designers and QA engineers to ship reliable software at scale under tight deadlines. My experience includes building AI-powered workflows, real-time data pipelines and enterprise web applications, with a strong focus on performance, maintainability and frontend architecture.

I also delivered WCAG 2.1 AA-compliant interfaces for a World Health Organization (WHO) portal.

Full Stack Engineer at Sports (2025-01 – Present)

• Built and shipped 15+ web games, Telegram Mini Apps and interactive ad products reaching millions of users
• Integrated multiple third-party APIs and built data synchronization pipelines to enable reliable real-time content delivery during FIFA tournaments
• Designed an AI-powered workflow using the Replicate API to automate processing of 1,300+ image assets, reducing days of manual work to minutes
• Designed and implemented 10+ data processing pipelines to aggregate, prioritize and synchronize data from multiple external sources to internal CMS
• Maintained the team's shared Nuxt.js boilerplate, conducted code reviews, and promoted consistent engineering practices across projects reducing time to production
• Introduced AI-assisted engineering workflows that accelerated feature delivery and reduced implementation time by ~ 30%

Full Stack Engineer at Spherical.pm (2023-01 – 2025-01)

Built enterprise ESG and healthcare platforms, collaborating closely with international product owners, designers and engineers to deliver customer-facing features, presented these features to clients.

• Developed 7 complex 2D charts that increased conversion and user engagement
• Optimized GraphQL and SQL queries, reducing average response times by 20%
• Led the migration from legacy PHP templates to modern Python (Jinja2) ones
• Improved frontend accessibility by achieving WCAG 2.1 AA compliance for a WHO platform, enhancing usability for a broad range of users
• Migrated 100+ legacy Selenium end-to-end tests to Playwright, improving test reliability, supporting long-term maintainability and reducing flaky test failures by ~70%

Frontend Engineer at EGAR Tech (2022-01 – 2023-01)

• Owned end-to-end development of a mobile admissions platform, from requirements gathering to production and post-release support
• Contributed to the development and optimization of a custom UI kit based on Element Plus
• Built complex interfaces with interactive data viewing and editing
• Successfully delivered the RWA banking calculator as part of a two-developer team

Frontend Engineer at Lunchpad (2021-01 – 2022-01)

• Implemented a payment feature in an online customer interaction platform for restaurants and hotels that increased checkout conversion rates
• Built reorder functionality with enhanced caching, established analytics and monitoring through GTM
• Developed a SPA with Telegram bot integration and added i18n localization support

Bachelor (Grado) of Informatics in Informatics – Empress Catherine II Saint-Petersburg Mining University (2020-01 – 2024-01)