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Olga ZakharchukOZ

Olga Zakharchuk

Senior Adobe Commerce BE PHP Developer

€300/day
Vienna, AT
8-15 years

Average response time: 1 hour

About Olga

I am a Certified Adobe Commerce / Magento 2 engineer with 10+ years of experience building scalable e-commerce multi-markets platforms. Driving rapid business growth through clever architecture, automation, and performance optimization. In my latest role, I helped launch a new platform that achieved $1M in sales within its first year, improved checkout speed by 3 times. Expert in using GraphQL APIs, recently completing a Software Architecture program (2025) to specialize in large-scale infrastructure.
  • Ukrainian

    Native or bilingual

  • English

    Fluent

Can work on-site
Vienna (up to 50km), Graz (up to 10km)

Experience

  • SoftServe,
    Senior Magento BE Developer
    E-COMMERCE
    January 2023 - Today (3 years and 7 months)
    Ukraine
    Project 1

    Platform for French multinational corporation that enables sellers to offer the company's core products with their own pricing, stock availability and delivery options. The system allows sellers to manage orders and shipping, generate detailed reports, and access a full payment service and buyer database.
    • Built a B2B portal from the scratch, including system architecture, feature development, and core functionality implementation. Developed robust backend APIs using GraphQL to support a headless frontend. creating Magento modules for custom functionality.
    • Led quality and architecture review for multiple offshore teams. Prevented critical production issues, enforce best practices, and mentor a junior developer through hands-on guidance.
    • Acted as technical authority between business and delivery teams, actively contribute to discussions with stakeholders, requirements analysis, and architecture decisions aligned with business goals.
    • Worked extensively with microservices architecture, third-party APIs, payment gateways, and queue-based event-driven infrastructure.
    • Partially covered Team Lead responsibilities
    Project 2

    High-load website for US active lifestyle brand company with scheduled short periods of sales to one particular kind of product.
    • Maintained a high-load B2B portal by enhancing and optimizing custom modules and features. Diagnosed and resolved complex, hard-to-reproduce bugs, ensuring platform stability and performance.

  • Ciklum
    Senior Magento BE Developer
    E-COMMERCE
    January 2020 - January 2022 (2 years)
    Ciklum, Kiev City, KV, Ukraine
    Migration Magento 1 for company to 2 with FE.
    • Implemented full migration from Magento 1.x to Magento 2.x, including custom module migration and adaptation of third-party modules to Magento 2 GraphQL.
    • Managed end-to-end migration cycle, including testing, debugging, and post-launch support.
    • Achieved less then 3% data lost during migration.
  • Ven Commerce
    Middle -> Senior Magento full-stack developer
    E-COMMERCE
    January 2015 - January 2020 (5 years)
    Kyiv, Ukraine, 02000
    • Translated business requirements into end-to-end solutions, covering design, architecture, frontend and backend development, deployment, and testing.
    • Integrated external APIs, including social media tools such as Facebook Pixel and Google Ads.
    • Developed BI reports to support data-driven business decisions.

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Education

  • Software Architecture Training Program
    Global Dev Experts
    2025
    Software Architecture Training Program
  • Docker, Basic Course
    Udemy
    2024
    Docker, Basic Course

Skill set

Categories