Aleksandr Krichevtsov

Delivered a frontend of a donation service for streamers with support for both fiat and cryptocurrency payments, using TypeScript, React, Storybook, Prism-CLI, OpenAPI, Web Socket, CI/CD, Ant Design. Engineered an architecture and integrated data retrieval through REST API and WebSocket connections. Developed a UI kit, resulting in a 2x increase in project delivery speed. Led the project’s development to meet a 4-month deadline, implemented a high-quality solution as part of a Prospective Development team.

BCD Travel Project • Developed website and mobile app using TypeScript, React.js and React-Native. • Resolved a critical bug by collaborating closely with Contentful support, yielding a 50% reduction in customer complaints and a 25% increase in user engagement. • Covered the Mobile App and Website with unit tests by 89% and 97%, resulting in a 43% reduction in post-release bug fixes.

MRI Viewer (Pilot Project Initiative) | http://epa.ms/mri Open Source 2D/3D viewer developed by EPAM Systems • Created a web viewer using JavaScript, ReactJs, Redux to enable 2D/3D visualization, supporting DICOM, NIFTI, KTX, HDR formats. • Refactored UI components and frontend logic, resulting in improved performance and a 2x faster file upload speed through the implementation of drag-and-drop functionality.

MOEX Project | https://www.moex.com • Constructed reusable atomic React components, reducing the project's legacy code from 50K+ to around 8K strings. • Implemented frontend logic and streamlined React components, resulting in a 61% increased user retention rate. • Onboarded and mentored new team members, integrating into a project for optimal productivity within 2 weeks.

Engineered a CRM system for 3000+ employees and designed the database architecture using TypeScript, Oracle SQL, APEX Oracle, PL/SQL. Led effective communication with customers regarding expectations, requirements, gathering feedback, and providing development updates 2x/ week. Facilitated a CRM System demo, leading to its adoption in 3 additional departments apart from the main customer. Provided continuous support for the CRM system during testing period, ensuring functionality and user interfaces.

• Built visually appealing and user-friendly multilingual platform and company websites using JavaScript, HTML5, CSS3. • Optimized website loading speed, achieved up to 93% increase from 20%, resulting in a 74% improvement in user retention.