Shopware Import: 33h to 3h for 530K SKUs
Cut Shopware 6 import time by 91% for a German retailer. 530K+ SKUs in under 3 hours using Redis, Symfony Messenger, and weight-aware batch sizing.
Read the full case study Available for projects · Q4 2026
Independent · Remote, CET overlap · Est. 2014
Shopware Developer
& E-Commerce Architect.
who builds plugins, integrations, and platforms that scale.
A decade of e-commerce engineering. 166+ Shopware 6 plugins, 97+ clients across DACH, UK, and US, plus mobile apps with 1.8M+ installs and full-stack web work.
Stack PHP · Symfony · Shopware 6 · Vue · MySQL
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Trusted By N° 01
Practice areas N° 02
Shopware services I deliver.
If one of these sounds like your store, I've fixed it before.
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Product imports run all night and still don't finish
Import and performance work33h down to 2.8h
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Your ERP sync breaks after every update
ERP and PIM integration300K+ SKUs synced both ways
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You're stuck on an old version and the upgrade keeps slipping
Migrations and upgradesUnder 5 minutes of cutover downtime
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Your B2B quotes still run on email and spreadsheets
B2B quote workflows24/7 self-service, synced to the ERP
Send me your problem
Also: Android apps (1.8M+ installs) and full-stack web work.
Casebook N° 03
Case Studies.
Real-world projects delivering measurable results.
Shopware 5 to 6: Zero-Downtime Migration
Migrated a German Shopware 5 store to Shopware 6.6 with zero customer-facing downtime, full data integrity, and a responsive redesign.
Read the full case studyShopware Pharma ERP Sync: 300K+ SKUs
Bidirectional Shopware 6 to ERP sync for a German pharma distributor. 300K+ SKUs with batch tracking, expiry alerts, and audit trails. No batch mismatches reported.
Read the full case studyShopware B2B RFQ: 24/7 Self-Service Quotes
Shopware 6 RFQ platform for a German industrial distributor. Multi-item quote builder, ERP sync via OAuth2, DE/EN localisation, 24/7 self-service.
Read the full case study Receipts N° 04
Client Testimonials.
What clients say about working with me
I really like the working style of Huzaifa as he is not only implementing our requirements, but he is always finding the best and most robust approach for long term solution.
I experienced him as highly professional, and he always grasped technical concepts quickly. His ability to work with very little supervision and provide clean code makes him a valuable member to every team.
I worked with Huzaifa for about a year, and he is an exceptional Shopware 6 developer with extensive expertise in eCommerce solutions. His reliability and dedication to delivering high-quality work consistently stood out. He's a great team player, always willing to put in the extra effort to ensure success. Highly recommended!
I had the pleasure of working with Huzaifa Mustafa on the development of a Shopware 6 plugin, and the experience was outstanding! He completed the work competently and quickly, demonstrating a deep understanding of my specific requirements.
Huzaifa did a great job! We struggle with some issues building a shop with Shopware 6. Huzaifa figured out the problems and solved the issues. He's answering quite fast and is a kind person. Simply perfect. Thank you for that great service!
Websites DACH · US
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Shopware Plugins +12 YoY
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Apps 1.8M+ installs
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Happy Clients +8 YoY
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Frequently Asked Questions
How much does a custom Shopware plugin cost?
Simple plugins start at EUR 750. Complex integrations with custom business logic can range up to EUR 20,000. I provide a fixed quote once the scope is clear.
How long does a Shopware 5 to 6 migration take?
Basic migrations can be completed in 10-14 days. More complex stores with custom plugins, large catalogs, and multiple integrations take longer depending on scope. I've migrated stores with 500K+ SKUs.
Do you work with clients outside Germany?
Yes. I serve clients across DACH, UK, US, and Pakistan. All communication in English or German.
What happens after I send a brief?
I reply by email within 24 hours with questions or a first technical read on the project. Once the scope is clear, you get a written proposal within 2 business days. No commitment required.
Shopware freelancer or agency - which do I need?
A senior freelancer, if the problem is focused. I'm a Shopware 6 Advanced Certified engineer with 166+ plugins delivered across DACH. You get direct access to the person writing the code, no account managers or handoff overhead. For larger engagements that need agency-level capacity, I can bring in a trusted team of developers I've worked with.
Free PDF 7 pages · Shopware 6.7.14
The Shopware performance checklist
15 settings from Shopware's own hosting docs, each with the exact config and the catch.
No spam, no mailing list.
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Download the PDF below. Stuck on one of the 15 items? Send me a message and I'll reply by email.
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Inside the checklist huzaifamustafa.com
Caching
- Keep the HTTP cache on
- Move the app and system cache to Redis
- Move delayed cache invalidation to Redis
- Compress the cart and switch to zstd
Background work
- Turn off the admin worker and run real workers
- Run scheduled tasks from cron
+ 11 more on background work, the database, storefront, PHP and deployment + 9 more on background work, the database, storefront, PHP and deployment
Get in touch Currently accepting new projects for Q4 2026
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