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Сергей Сова
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Сергей Сова

@0008352

Senior React and TypeScript engineer at VentryHub; delivered three B2B SaaS modules and cut feature lead time by 30%.

Armenia
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At VentryHub, I delivered Products, Purchase Orders, and Stock Management modules end-to-end, including complex real-time calculations. I also architected enterprise data-grid interfaces with multi-step validation workflows, reducing user errors by 25%.

At Performante, I refactored ScreenStory’s Electron and React UI core and built a timeline editor that reduced edit latency by 60%. For BigMotion.ai, I implemented frontend architecture for an AI video-generation pipeline and integrated Cloudflare infrastructure, cutting costs by 50%.

I’m a core contributor to the Effector ecosystem and co-author of Feature-Sliced Design. Across my work, I’ve applied React, TypeScript, and Effector to production interfaces, architecture, testing, and delivery.

I’ve also mentored engineers and shared practical frontend knowledge through the Frontend Vision course, which I authored for middle-to-senior frontend engineers. Its 80+ students build a Trello-like application while learning React, TypeScript, Effector, and production-oriented architecture.

Experience

Work history, roles, and key accomplishments

VE

Senior Frontend Engineer

VentryHub

Jul 2025 - Mar 2026 (8 months)

Delivered 3 core B2B SaaS modules end-to-end and architected enterprise data-grid interfaces with multi-step validation workflows, reducing user errors by 25%. Used Claude Code to scaffold service layer and generate test suites, cutting feature lead time by 30% while maintaining quality.

SE

Frontend Engineer, Architect

Selzy

Sep 2022 - Apr 2023 (7 months)

Built React + Effector frontend architecture for email-marketing platform serving 50,000+ customers. Established testing practices and improved test coverage from 35% to 75%, and integrated i18n reducing translation turnaround from 3 weeks to 5 days.

HA

Deputy CTO

Haiku

Sep 2021 - Sep 2022 (1 year)

Reviewed frontend architecture and implementation quality across React and TypeScript projects for 5 teams. Consulted teams on Effector, Feature-Sliced Design, and engineering practices, and designed technical interview process and promotion framework.

MI

Head of Web Development

Mission:Luna

Nov 2020 - Sep 2021 (10 months)

Built frontend team processes for hiring, onboarding, code review, and delivery, growing team from 0 to 12 engineers. Reviewed API contracts and frontend-backend integration workflows, reducing integration issues by 45%.

RE

Frontend Development Lead

Redmadrobot

Jul 2019 - Nov 2020 (1 year 4 months)

Led frontend code review and knowledge-sharing practices across 650+ person product agency, improving code quality by 30%. Improved API review process and frontend-backend collaboration, reducing integration rework by 40%.

Yandex LLC logoYL

Senior UI Developer

Yandex LLC

Sep 2017 - Sep 2018 (1 year)

Built high-load email client frontend for Marketing Yandex Mail using React, TypeScript, and Node.js. Designed backend APIs and optimized Node.js performance under load, achieving sub-200ms p99 latency.

KC

Lead Frontend Developer

KORUS Consulting CIS

Jan 2017 - Aug 2017 (7 months)

Built React component library using Atomic Design with customizable themes, adopted by 5+ internal projects. Integrated CryptoPro crypto-tokens into enterprise web application for secure document signing.

FR

Web Developer

Freelance

Jan 2012 - Dec 2016 (4 years 11 months)

Built websites and web applications with JavaScript, PHP, and early React/Node.js for small businesses and startups while completing studies.

Education

Degrees, certifications, and relevant coursework

FG

FGBOU SPO GK

Technician, Computer Software and Multimedia Applications

2009 - 2013

Grade: Graduated with honors

Graduated with honors in professional subjects. Designed and developed website and internal online diary system for the institution.

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