Contact Web Berserker Michał Sobczak
Get a custom proposalSenior PrestaShop & Symfony Expert
Michał Sobczak is a Certified PrestaShop Expert and Senior Backend Developer with over 10 years of experience in high-performance e-commerce.
Unlike typical agencies that focus on basic setups, "Web Berserker" specializes in solving complex architectural challenges, critical performance bottlenecks, and difficult migrations for established businesses.
Core Services:
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Advanced Migrations: Safe upgrades from legacy PrestaShop (1.6/1.7) to 8.x with guaranteed data integrity and SEO preservation.
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Performance Engineering: Deep optimization of slow stores (SQL profiling, Redis/Memcached implementation, Core Web Vitals) to handle high traffic.
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Custom Development: Building bespoke Symfony-based modules, complex logic, and API integrations (ERP/PIM/WMS) that standard plugins cannot handle.
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Rescue Missions: Stabilizing systems after failed updates or security breaches.
Tech Stack: PHP 8+, Symfony, Laravel, MySQL, MariaDB, Docker, Git.
Cooperation Model: B2B Consultancy / Staff Augmentation. Fully remote-ready (EU-based).
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Min project size
$5,000+
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Hourly rate
$100 - $149 / hr
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Employees
Freelancer
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Locations
Poznań, Poland
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Year founded
Founded 2021
1 Locations
- Poznań , Poland
Service Lines
Select Focus Area
- Application Platforms
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- Linux server
- 90%
- Amazon Application Development Framework
- 5%
- E-commerce Systems
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- PrestaShop
- 100%
- Programming & Scripting
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- PHP
- 100%
Industries
- eCommerce
- 70%
- Retail
- 20%
- Information technology
- 10%
Clients
- Midmarket ($10M - $1B)
- 60%
- Small Business (<$10M)
- 30%
- Enterprise (>$1B)
- 10%
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Our Story
Web Berserker solves complex e-commerce problems with surgical expertise, avoiding generic agency processes.
As a former Lead Developer, I provide CTOs with direct access to Senior engineering—eliminating communication layers.
My Core Values:
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Direct Impact: You partner directly with the engineer.
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Quality: Limited projects per quarter for total focus on critical migrations.
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No "Spaghetti Code": Scalable, documented architecture only.
Locations (1)
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