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JaJuMa Shop
Your Vision, Realized: Full-Service Magento, Hyvä & Mage-OS eCommerce Projects
As official Hyvä Gold Partners and seasoned Magento specialists, we build future-proof end-to-end
online store solutions that empower you to sell more and scale smarter.
From concept to launch & ongoing strategic management.
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Hyvä, Magento & Mage-OS Experts:
10+ Years Magento Experience & Triple Hyvä Partner: Expertly Crafted Stores. Tailored to your unique brand, vision & business goals.
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Performance-Driven Results:
Leveraging cutting-edge tech like Hyvä and deep performance knowledge & passion for exceptional speed & conversions.
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Future-Ready Platforms:
Flexible, scalable solutions with robust Magento, modern Hyvä, or innovative Mage-OS.
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Transparent End-to-End Partnership For Growth:
Transparent Project Journey: From strategic concept and design to full development, launch, and ongoing evolution. Collaborative, clear, and focused on your success.

Partner with JaJuMa to Build or
Transform Your Online Store:
Custom Store Development
Hyvä, Magento & Mage-OS
Launching a new brand or a bespoke e-commerce platform?
We manage your entire store build project, creating your Hyvä, Magento, or Mage-OS store from the ground up, tailored to your exact vision.

Full Migrations &
Replatforming
Seamlessly transition your existing store with our end-to-end project management. We deliver a high-performance Magento, Hyvä, or Mage-OS foundation through expert data migration and functionality enhancement.
Discover Migration SolutionsHolistic Management, Maintenance
Optimization & Growth
Beyond launch – we comprehensive strategic project management for ongoing optimization and support to ensure your e-commerce success.
Discover Strategic Management
The Partner
Your Strategic Partner
for E-commerce
Transformation
Is your current e-commerce platform failing to keep pace with your ambitions?
Outdated technology, sluggish performance (especially with traditional Magento Luma themes), or a disjointed user
experience can hinder growth and impact your bottom line.
Many merchants find their existing setup creates more obstacles than opportunities,
from scalability limitations to an inability to leverage modern UX like that offered
by Hyvä Themes or the community-driven advancements of Mage-OS.
At JaJuMa, we understand these frustrations.
We don't just see technical problems; we see untapped potential.
That's why we partner with businesses like yours to move beyond piecemeal fixes and
deliver comprehensive, strategic e-commerce solutions.
We specialize in managing and delivering complete e-commerce store projects from A to Z, ensuring a
professionally architected and expertly built online store. This isn't just a sales channel;
it's a powerful engine for growth, brand differentiation, and lasting customer relationships.
Let us help you build not just a store, but a digital flagship.
(Looking for specialized development tasks or individual extensions?
Visit our
JaJuMa Develop services.)
Tailored Turnkey E-commerce Shop
Solutions by JaJuMa:
Your Vision, Expertly Crafted
as a Complete Project on Your Chosen Platform
Forget one-size-fits-all.
At JaJuMa, we specialize in crafting bespoke, end-to-end e-commerce solutions
as comprehensive projects that drive results.
Whether you're launching a new venture, undertaking a full replatforming project,
or seeking strategic project management for sustained growth,
we provide the expertise and comprehensive services to
bring your vision to life on your preferred Magento-based platform.
Hyvä Theme eCommerce Solutions:
Unparalleled Speed, Modern UX
Experience the future of Magento with a complete Hyvä store built project. Renowned for its blazing-fast performance, streamlined development, and exceptional user experience, Hyvä is the perfect choice for merchants prioritizing speed, efficiency, and top Core Web Vitals.
Experience lightning-fast page loads and top Core Web Vitals scores, leading to better SEO
and higher customer satisfaction.
Benefit from a streamlined development process, faster time-to-market,
and lower long-term costs due to Hyvä's lean architecture.
As Hyvä Gold Partners, early adopters, and core contributors,
we possess unparalleled expertise in crafting and optimizing bespoke Hyvä experiences.
We don't just implement Hyvä; We leverage our deep understanding and in-house innovations,
like our Hyvä Inline CSS extension, to deliver stores that are not just fast,
but strategically built for your success.
Magento eCommerce Solutions:
Flexible, Scalable & Robust
For businesses with highly specific requirements, complex integrations, our custom Magento solutions offer unmatched flexibility and power. Our turnkey Magento store projects leverage Magento's renowned scalability and extensive feature set to build a truly bespoke e-commerce platform.
Harness Magento's renowned strengths for complex business logic, extensive customization,
and vast integration capabilities, all while delivering a lightning-fast, SEO-friendly,
and highly converting user experience through the modern Hyvä frontend.
This combination offers the best of both worlds:
Enterprise-grade backend power with next-generation frontend agility.
With over a decade of Magento mastery, we expertly architect solutions that maximize Magento's backend potential.
We seamlessly integrate this with the Hyvä frontend, ensuring you benefit from Magento's core strengths
without compromising on speed or modern UX.
This is our standard for all new Magento builds, tailored to any challenge, ensuring future-proof success.
We build solutions that are not only powerful today but also ready for tomorrow's growth.
Mage-OS
eCommerce Solutions:
Community-Driven Innovation &
Future-Focused
Embrace the future of open-source e-commerce with a complete new store build project on the innovative and community-backed Mage-OS platform, paired with a high-performance Hyvä frontend. As a community-driven fork of Magento Open Source, Mage-OS is built on Magento's solid foundations while pioneering innovation, enhancing performance, and ensuring long-term reliability through community governance.
Build on a mature, stable platform evolved from Magento Open Source, offering unparalleled flexibility and a large global support community. Benefit from community-driven enhancements, a focus on long-term reliability, and cost-effectiveness due to the absence of licensing fees. Combined with Hyvä, achieve exceptional speed and UX.
Explore Our Mage-OS Demo Store
JaJuMa.de is the very first live store ever launched on Mage-OS!
As active participants in the Mage-OS ecosystem, we are committed to its success.
We develop secure, high-performance, and adaptable online stores that leverage the forward-thinking approach of
Mage-OS with the frontend excellence of Hyvä, ensuring your e-commerce venture is built for the future.
Comprehensive Migrations & Replatforming
Breaking Free From Shopify,
Limits & Risks
JaJuMa manages your entire end-to-end migration or replatforming project, seamlessly transitioning
your existing store to a modern, high-performance Magento, Hyvä,
or Mage-OS foundation, unlocking new capabilities and growth potential.
Leave SaaS platform risks and limitations behind;
Enjoy the full freedom of open-source - own your data AND your business.
Say good-bye to vendor-lock-in and take back control of your business!
Securely transfer all vital e-commerce data (products, customers, orders) with minimal risk.
Enhance existing functionalities or build new ones on a more robust platform.
Experience a significant uplift in performance, security, and user experience, ultimately maximizing your ROI.
Our meticulous migration process, refined over years of experience, ensures minimal downtime and disruption. We prioritize SEO preservation and focus on transforming your platform into a more powerful and efficient e-commerce engine, whether your target is Hyvä, traditional Magento (upgraded with Hyvä frontend), or Mage-OS.
Continuous & Holistic Shop Evolution:
Ongoing Maintenance & Optimization
An eCommerce store is a living entity that requires ongoing care and strategic evolution to thrive.
Ensure your e-commerce store remains a competitive, high-performing asset with our turnkey holistic management projects,
providing ongoing strategic and continuous optimization services.
Move beyond basic support with proactive maintenance, continuous performance monitoring and improvements, and strategic feature enhancements. Benefit from regular consultations and data-driven insights to keep your store secure, optimized for conversions (CRO), and aligned with your evolving business goals.
We aim to be your long-term strategic partner. Our holistic management leverages advanced tools, including our proprietary Real User Monitoring (RUM) solution, to provide data-backed recommendations and ensure your e-commerce platform consistently delivers results, supports sustained growth and keeps you ahead of the competition.
The JaJuMa Advantage
More Than Just a Store,
It's Your Strategic E-commerce Asset
When you partner with JaJuMa for your comprehensive e-commerce project,
you're investing in a meticulously crafted solution engineered for sustainable growth and peak performance.
We deliver more than just a website;
we provide a strategic digital asset through an end-to-end managed process.
Here’s what defines a JaJuMa-Shop solution:
A Custom-Tailored
E-commerce Store:
Your vision, expertly realized. Delivered as a complete project on your chosen platform - be it the lightning-fast Magento with Hyvä Themes, traditional Magento (powered by a Hyvä frontend), or the innovative Mage-OS with Hyvä.
Optimized for
Peak Performance:
Engineered from the ground up for excellent Core Web Vitals and superior speed, ensuring an exceptional user experience that converts as part of your turnkey solution.
Responsive Design for
a Flawless User Experience
A seamless and intuitive experience across all devices - desktop, tablet, and mobile - crucial for today's e-commerce landscape and integral to every project we deliver.
SEO-Friendly
Architecture:
Built with search engine best practices at its core to help your store rank higher, attract more organic traffic, and maximize visibility within your overall project scope.
Seamless Integration of
Essential Features:
We ensure all necessary functionalities, including required third-party extensions, are perfectly integrated (compatibility guaranteed) to support your unique business processes as part of our comprehensive service.
A Scalable Platform
Ready for Growth:
Your e-commerce solution is built to adapt and scale alongside your business, accommodating future expansion and evolving market demands - a core principle of our project philosophy.
Expert Guidance &
Collaborative Partnership:
Benefit from our deep expertise, project leadership and transparent consultation throughout the entire project lifecycle, from initial strategy to final launch and beyond.
Optional Comprehensive
Support & Optimization:
Optional comprehensive ongoing project management for support & optimization packages for long-term success, ensuring your store remains a top performer.
With JaJuMa, you gain not just a cutting-edge e-commerce platform,
but a dedicated ally committed to managing your entire project to build and nurturing your digital flagship for lasting success.
We are committed to empowering our clients with the unparalleled speed, efficiency, and ROI that Hyvä delivers, backed by JaJuMa's expert guidance and innovative solutions.
Why Partner with JaJuMa for Your E-commerce Project?
Your Success
is Our Blueprint
Choosing the right agency for your comprehensive e-commerce project is critical.
At JaJuMa, we combine deep technical expertise with a strategic,
client-centric approach to deliver complete project solutions that not only meet but exceed expectations.
Here’s Why Businesses Trust Us With Their Most Important eCommerce Initiatives:
Official Hyvä Gold Partner,
Technology Partner &
Core Contributor
We were among the very first agencies to embrace Hyvä Themes (since April 2021).
Recognized by Hyvä Themes B.V.
as official Hyvä Gold Partners and active Core Contributors to the Hyvä Theme,
we don't just use Hyvä – we help shape it.
This deep, intrinsic knowledge means your project benefits from the
Our commitment ensures your store leverages the full potential of Hyvä's speed, simplicity,
and superior UX.
Pioneering Experience
Proven Magento Mastery &
Mage-OS Engagement
Our deep Magento knowledge extends to
traditional builds and emerging platforms like Mage-OS.
With over a decade of dedicated Magento experience, our team has successfully navigated projects
of all complexities. From intricate custom logic to sophisticated integrations, we build robust, scalable,
and secure Magento backbones that power your business.
Our active involvement with Mage-OS since the beginning ensures our strategies are forward-thinking and
aligned with the future of open-source e-commerce.
This extensive, hands-on experience means we've mastered intricacies and can
guide you with proven insights.
Early Adopters &
Innovators
We were the first Magento extension provider to offer official Hyvä compatibility for our
extensions on the Magento Marketplace and continue to develop cutting-edge solutions for the
entire Magento stack.
Innovation That Benefits You: In-House Tools & Extensions.
Our passion for e-commerce excellence drives us to innovate. We've developed a suite of proprietary
Hyvä-compatible Magento extensions
and advanced tools (like our Hyvä Inline CSS solution and the first
Magento-dedicated Real User Monitoring (RUM) tool).
These aren't just add-ons; they are integrated into our project methodologies to deliver enhanced performance,
faster development, and greater value for your investment.
Performance-Driven Results,
Measurable Impact.
Speed and user experience are not afterthoughts; they are core to our development philosophy.
Our JaJuMa-Shop solutions usually include our proprietary performance optimizations, such
as Next-Gen Image Optimization (AVIF), JaJuMa Hyvä Inline CSS Extension, and Advanced Caching Strategies.
We are obsessed with delivering outstanding Core Web Vitals and lightning-fast load times.
Our
Stollen store case study demonstrates how we deliver top performance even on tight timelines and budgets.
This focus on performance directly translates to better SEO, higher conversion rates,
and increased revenue for your business.
Client-Centric Project Approach:
Partnership, Collaboration & Transparency.
We believe in a true partnership and open communication.
Our project lifecycle is built on clear communication, collaborative planning,
and complete transparency at very stage.
From initial discovery and strategic blueprinting to agile development,
rigorous QA, and seamless launch, you are involved and informed every step of the way,
ensuring your vision is realized.
Reliability &
Long-Term Vision
We build solutions designed for longevity and growth.
Our commitment to quality code, robust architecture, and proactive support
means you can rely on your JaJuMa-built store for years to come.
We aim to be your long-term strategic e-commerce partner.
Learn more about our journey as Hyvä Gold Partners and our contributions to the ecosystem.
Our Turnkey Project Success Stories:
Real Results,
Real Businesses
Don't just take our word for it.
We're proud of the transformative end-to-end e-commerce solutions we've delivered.
These are more than just websites;
they are success stories built on comprehensive project management,
partnership, expertise, and a relentless focus on performance.
Explore How We've Helped Businesses Like Yours
Achieve Their Online Ambitions Through Our Turnkey Approach:
Showcase 1: Project Rescue to Hyvä High-Flyer
(Rosemarie Schulz)
Challenge: A client's existing Magento store was plagued with instability and poor performance, significantly impacting their business operations and customer satisfaction.
Solution: Executed a comprehensive project rescue, migrating the store to a stable Magento 2 foundation and implementing a custom Hyvä Theme frontend. This involved meticulous data migration, third-party extension compatibility adjustments, and intensive performance optimization.
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CLS-100% 0.0
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LCP-50% 0.8
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✓Launched in under 4 week - The client was "absolutely thrilled": "Our store is now faster and more stable than we ever thought possible, thanks to JaJuMa's Hyvä expertise." - Client Quote
Showcase 2: Stollen Online Store
A Festive Hyvä Success Story
Challenge: Launch a brand-new, custom-designed Magento store for seasonal Stollen sales within an extremely tight 4-week deadline and limited budget, without compromising on performance or user experience, demanding expert Hyvä implementation.
Solution: Leveraged Magento and the Hyvä Theme, combined with our rapid development expertise and proprietary optimization modules, to design, build, test, and deploy a fully functional, high-performance Hyvä e-commerce store in a record-time launch with exceptional speed.
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0 CLS
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0.8s LCP
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✓Developed and launched in weeks on a modest budget. Achieved excellent Core Web Vitals and a seamless user experience during peak season.
Interactive Hyvä Theme Demo for Magento 2
- Explore the live storefront just as your customers would.
- No login required.
- Administrate a Hyvä-powered Magento 2 store
- Username: demo Password: demo123
The JaJuMa Turnkey Project Journey:
Our E-commerce Shop Solution Process
Your Success, Mapped Out
Embarking on a full e-commerce project can seem daunting.
At JaJuMa, we've refined a collaborative and transparent end-to-end project process to ensure your journey is smooth,
predictable, and ultimately successful.
We guide you every step of the way, transforming your ideas into a thriving online reality.
Here’s a Glimpse Into Our Proven Process:
Discovery & Strategy Workshop
We start by deeply understanding your business, goals, target audience, and specific requirements for your shop solution (Hyvä, traditional Magento, Mage-OS, or ongoing management). This collaborative session lays the foundation for a tailored solution.
Solution Design & Architecture
Based on the discovery, we design the optimal architecture for your store, outlining key functionalities, integrations, and user experience pathways.
Custom UX/UI Design (Optional)
Our design team can craft a unique, brand-aligned, and conversion-focused user experience, or we can work with your existing designs.
Platform Development & Configuration
We set up the robust backend (Magento, Hyvä, Mage-OS) and configure it according to the designed architecture, ensuring a clean and optimized foundation.
Custom Development & Integrations
This is where your unique functionalities come to life. We develop custom features, integrate third-party extensions (ensuring compatibility), and connect necessary systems (ERP, CRM, payment gateways).
Rigorous Testing & Quality Assurance
Every aspect of your store is meticulously tested across devices and browsers to ensure flawless performance, functionality, and adherence to best practices.
Performance Optimization & Fine-Tuning
We apply our specialized performance tuning techniques to ensure your store achieves optimal Core Web Vitals and lightning speed.
Launch & Go-Live Support
We manage the deployment process carefully and provide immediate post-launch support to ensure a smooth transition.
Ongoing Evolution (for Maintenance & Optimization Packages)
For clients choosing our ongoing support solutions, we transition into a continuous cycle of monitoring, maintenance, strategic enhancements, and reporting to ensure sustained growth and performance.
Frequently Asked Questions About Your Turnkey JaJuMa E-commerce Project
Ready to Build, Transform, or Evolve
Your E-commerce Store with a Turnkey JaJuMa Project?
Stop letting an underperforming or outdated website limit your potential.
Partner with JaJuMa, your dedicated e-commerce solution experts, and
transform your online presence into a high-speed, conversion-optimized, and future-proof powerhouse.
Whether you're envisioning a brand-new store with Hyvä, a custom Magento build,
an innovative Mage-OS platform, or seeking a long-term partner for shop maintenance and growth, we're here to help.
More About
JaJuMa-Shop

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