Dec 2021 – Nov 2023 · 1 yr 11 mos · London, England, United Kingdom · Remote

• Developed the “Flame Chart” feature, expertly designing an architecture that renders 150-300K data elements on a browser page at 60 FPS - surpassing Chrome's recommended DOM element limits by 100x. This innovation was pivotal in attracting a $17 million investment in March 2022.
• Originated the "Execution Path" feature, formulating an algorithm that reduced computational complexity from exponential to linear. This innovation boosted the feature's performance 100 times, facilitating scalability for large data sets and proving critical in clinching the next investment round.
• Engineered the "Video Synced with Trace" feature, dramatically reducing video pre-processing from 10 minutes to mere seconds, minimizing recognition errors by a factor of 100, and enabling frame-by-frame video playback in browsers. Showcased at Droidcon London in November 2022, this feature became crucial in attracting an $18 million investment in January 2023.

Jun 2019 – Dec 2021 · 2 yrs 6 mos · San Francisco, California, United States · Remote

• Responsibilities:
• Solving company-wide tech challenges as a Frontend Advisory Board member;
• Technical coaching and knowledge sharing;
• Managing the team’s technical frontend backlog;
• Interviewing and onboarding new employees.
• Accomplishments:
• Designed and integrated a lightweight but effective end-to-end tests system;
• Integrated TypeScript with strict checks and lints;
• Introduced an innovative approach - "Code NPS", to measure code quality;
• Results:
• The average number of post-release issues has been decreased by 60%.
• The team engineers’ NPS has been improved from -14% to 33%.

Dec 2015 – May 2019 · 3 yrs 5 mos · St Petersburg City, Russia · On-site

• Responsibilities:
• People management;
• Delivery management;
• FE solutions architecture control;
• Solving department-wide technical and processes issues;
• Interviewing and onboarding new employees.
• Accomplishments:
• Led “Inbox” - a solution for incoming messages and real-time notifications;
• Led “WTalk” - a conference tool for voice and video calls;
• Led “Roles and Permissions”/"Security Features" - a new product-wide access levels system.
• Introduced a code review checklist;
• Designed, developed and published in OS a logging system rules and library;
• Designed and led the development of a real-time communication library;
• Advocated the micro-frontend approach;
• Results:
• Successfully led the “Security Features” project. Coordinated the effort of 100-200 engineers in 10-15 teams with zero critical issues or outages during the integration process across the whole company;
• Designed, developed and published a new error-logging system consisting of two open-source libraries, which reduced by 10% the number of support tickets escalated up to engineers;

May 2014 – Dec 2015 · 1 yr 7 mos · St Petersburg City, Russia · On-site

• Responsibilities:
• Developing and supporting JS + Canvas apps on the embedded platform;
• Researching the best possibilities to show a great UI using limited resources;
• Accomplishments
• Designed & developed a configuration system for third-party apps;
• Designed & developed a rendering engine for the “Video on demand” app;
• Designed & developed an FE data access library.
• Results:
• I developed a user interface rendering system for embedded systems, facilitating sleek interfaces and smooth animations at 30 FPS on devices with a few megabytes of RAM. This technological breakthrough was instrumental in the company securing a new contract from Cisco.

Nov 2012 – May 2014 · 1 yr 6 mos · St Petersburg City, Russia · On-site

• https://megagroup.ru is a SaaS site-builder platform.
• Developed a multithreaded service capable of processing up to 30,000 write requests per second at peak times. Utilizing this service instead of more costly alternatives led to a 10% reduction in infrastructure expenses;
• Developed a multithreaded web crawler for collecting information from the internet on the use of competing products in online support chats. This innovation led to a 20% increase in the sales funnel.

Dec 2010 – Nov 2012 · 1 yr 11 mos · St Petersburg City, Russia

• Led the end-to-end development of e-commerce platforms, forums, and websites utilizing CMS Drupal and Bitrix, ensuring robust functionality and user-friendly interfaces.
• Managed and maintained servers operating on Linux and Windows, guaranteeing high availability and system reliability.
• Expertly diagnosed and resolved a wide range of technical issues in workstations and office network environments.
• Consistently achieved a 100% customer satisfaction rate, demonstrating a strong commitment to client service and technical excellence throughout my tenure.

Dec 2009 – Dec 2010 · 1 yr · St Petersburg City, Russia · On-site

• Contributed as a Junior Research Scientist in the development of a fiber-optic electromagnetic field sensor. My key contributions included creating a comprehensive three-dimensional sensor model and formulating an intricate mathematical model for measurements, programmed in C++. These innovations were instrumental in securing a significant scientifical grant, ensuring 12 months of sustained research funding.