Constantine Gosteev
@gosteev
I build and scale Adobe Commerce storefronts with Hyvä, PHP, JavaScript, and production-ready infrastructure.
UkraineWhat I'm looking for
I've spent 10+ years building, rescuing, refactoring, and scaling Magento/Adobe Commerce storefronts, including a multi-brand platform that grew to 20+ stores. For the last two years, I've focused on Hyvä and hold Adobe Certified Expert and Hyvä Certified Developer credentials.
At VML, I designed an SCSS-based system for 20+ stores and led a frontend architecture refactor that removed 1,000+ files of technical debt. At DEPT®, I led frontend work across multiple projects, including API integrations, Magento upgrades, legacy refactoring, and a planned zero-downtime production and CI/CD migration architecture.
I've led teams of up to five frontend developers at FISHA while also owning projects end-to-end, from requirements through optimization and production release. I build reusable modules and UI kits, document environments and onboarding, and help teams keep pace with Magento standards.
I also publish and maintain Acid Unit, open-source Magento/Adobe Commerce extensions, including one reviewed and published to the Adobe Commerce Marketplace. I'm looking to return to full-time eCommerce development in a remote Magento, Adobe Commerce, or Hyvä role.
Experience
Work history, roles, and key accomplishments
Voluntary work
Career Break
Jan 2026 - Present (7 months)
High-volume production across branding, packaging, large-format print, merch, and video/photo post-production. Often AI-tool-driven workflow (generative image/audio/video tools).
Continuing to maintain Magento/Adobe Commerce expertise and actively looking to return to eCommerce development full-time.
Worked on a few Adobe Commerce projects using Hyvä, covering the full front-end development cycle - from gathering requirements to implementation, optimization, and production release.
Led front-end development across multiple projects, including third-party API integration, Magento version upgrades, and legacy codebase refactoring for improved performance. Also designed a full production server & CI/CD migration architecture (Nginx, MariaDB, Valkey, OpenSearch, RabbitMQ, Varnish, GitHub Actions zero-downtime deploys) for a client migration — paused before implementation.
Provided expert Magento support, including performance audits, optimization, and complex development solutions.
Designed and built a SCSS-based system supporting 20+ stores, and led a major refactor of the project's custom frontend architecture that cut technical debt by 1000+ files. Created specialized modules extending Magento 2 functionality and improving overall site performance.
Led a team of up to 5 frontend developers — consulting on complex client requirements, running internal knowledge-sharing sessions, and breaking down user stories into actionable tasks. Drove technical direction: built reusable modules and UI kits, refactored outdated solutions for better performance, and challenged team practices to keep pace with Magento standards. Partnered with project manager
Owned full-cycle frontend development and support across multiple projects — from planning through production release — while maintaining documentation and sharing best practices with the team.
Delivered new features, website designs, and email templates for a telecom eCommerce platform, with rigorous cross-browser QA.
Implemented new designs and email templates with full cross-browser testing. Built automated systems for Magento email template generation and bulk image optimization, improving page load performance.
Delivered frontend work across multiple Magento projects — email templates, custom blocks, JavaScript refactoring, and performance bug fixes.
Built a custom Magento 2 theme from the Blank theme foundation, plus freelance Magento 2 projects with targeted enhancements and fixes.
Education
Degrees, certifications, and relevant coursework
Ternopil National Economic University
Software Engineering
2010 - 2014
Ternopil National Economic University
Bachelor of Science, Software Engineering
2010 - 2014
Pursued a degree in Software Engineering at Ternopil National Economic University from 2010 to 2014.
Tech stack
Software and tools used professionally
Availability
Location
UkraineAuthorized to work in
Website
acid.7prism.comSocial media
Job categories
Skills
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