Advanced Magento Development Services

From Magento 2 migrations and B2B builds to custom integrations, delivered by Adobe-certified developers with 15+ years of platform expertise. UK-based, no outsourcing, £100/hour.

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  • B2B & B2C Commerce Solutions
  • UK Based No Outsourcing
  • 15+ Years Magento experience
  • 100% Client satisfaction rate

Comprehensive Development Services

We handle complex Magento projects that require deep technical expertise and proven development methodologies.

  • Magento Migrations

    Seamless platform migrations from Magento 1 to 2, version upgrades, or migrations from other e-commerce platforms. Complete data preservation with zero downtime.

    • Key Features:
    • Data migration & validation
    • Theme & extension porting
    • Performance optimization
    • SEO preservation
    Learn more about migrations

  • B2B Integration & Development

    Complex B2B functionality including customer-specific pricing, quote systems, company accounts, and ERP integrations for wholesale operations.

    • Key Features:
    • Custom pricing tiers
    • Quote management
    • Company hierarchies
    • ERP/CRM integration
    Explore B2B development

  • Custom Extension Development

    Bespoke Magento extensions tailored to your specific business needs. From payment gateways to inventory management systems.

    • Key Features:
    • Custom functionality
    • API integrations
    • Admin interfaces
    • Performance optimized
    Discuss your requirements

  • Theme Development & Redesigns

    Complete custom theme development or major redesigns. Mobile-first, conversion-optimized designs built for performance.

    • Key Features:
    • Responsive design
    • Performance focused
    • SEO optimized
    • Conversion testing
    Learn about Hyvä themes

  • Third-Party Integrations

    Complex integrations with warehouses, PIMs, ERPs, marketing automation, and other business-critical systems.

    • Key Features:
    • Real-time sync
    • Data validation
    • Error handling
    • Performance monitoring
    See our ERP integrations

Development Success Stories

Real projects, real results. See how we've helped businesses transform their Magento platforms.

Joanie Clothing
Migration Custom Integrations Theme Development

Joanie Clothing

Challenge:

Complete platform migration from Magento 1 to 2 with custom theme development and complex third-party integrations

Solution:

Full-scale redevelopment with bespoke integrations and automated business processes

Technical Deliverables:

  • Theme redevelopment
  • Custom integration with Torque WHMS
  • Automated refund process with advanced logic
  • Custom integration with Advanced Commerce search
  • Bespoke reporting package
  • Custom size guide integration
  • International visibility and shipping with Global-e
View Full Case Study
Migration Multichannel Integration Custom Development

Sosandar

Challenge:

Complex migration from Magento 1 with advanced multichannel integration and intelligent merchandising requirements

Solution:

Complete platform redevelopment with sophisticated third-party integrations and automated business processes

Technical Deliverables:

  • Migration from Magento 1
  • Theme redevelopment
  • Automated intelligent refund process
  • Integration with customer WHM system
  • Bespoke integration with Next and other 3rd party channels
  • Bespoke reporting solutions
  • Custom product waitlist solutions
  • Unique and intelligent merchandising functionality
  • Integration with bricks and mortar store for click & collect orders and returns
View Full Case Study
Sosandar

Our Proven Development Process

Every project follows our structured methodology to ensure quality delivery and transparent communication.

  • 1. Discovery & Planning

    Comprehensive requirements gathering, technical architecture planning, and project roadmap creation.

  • 2. Design & Prototyping

    UX/UI design, technical prototypes, and detailed specifications with client approval.

  • 3. Development & Testing

    Iterative development with regular demos, comprehensive testing, and quality assurance.

  • 4. Deployment & Training

    Staged deployment, team training, documentation, and post-launch support setup.

Why Choose Interjar for Development?

  • Expert Developers

    15+ years combined Magento experience with Adobe Commerce certification

  • Proven Methodology

    Structured development process with quality assurance at every step

  • Performance Focused

    Every project optimized for speed, scalability, and user experience

  • Transparent Communication

    Regular updates, demos, and direct developer access throughout

What Our Clients Say

  • "As a team of professional developers, Interjar consistently deliver exceptional results, helping to seamlessly transform my vision into a fully-functional, user-friendly online platform. Interjar are a pleasure to work with. Their professionalism and friendly demeanour have made the collaboration process both enjoyable and efficient."

    Chris Horridge
    Director, Expert Electrical

  • "We really enjoy working with Interjar; the communication is great and the team are flexible and knowledgeable, using their Magento experience to recommend the best solutions for the site. We know we can always rely on them!"

    Sarah Gallagher
    Head of E-commerce, Joanie Clothing

Magento Development FAQs

  • How long does a typical Magento project take?

    It depends on scope. A custom integration or module might take 2-4 weeks, while a full site build or major migration typically takes 2-4 months. We'll give you a realistic timeline upfront after scoping your requirements.

  • Can you work with our existing Magento store?

    Yes. Most of our development work involves extending and improving existing Magento stores, adding new features, building custom integrations, fixing performance issues, and migrating from older versions.

  • Do you build custom Magento extensions?

    We do. From bespoke checkout flows to ERP integrations and custom order management, we build extensions tailored to your business requirements rather than forcing you into off-the-shelf solutions that don't quite fit.

  • How do you ensure quality during development?

    Every project goes through code review, automated testing, and staging environment validation before anything touches your live site. We use GitLab CI/CD pipelines for consistent, zero-downtime deployments.

  • Can you integrate Magento with our existing systems?

    Absolutely. We regularly integrate Magento with ERPs, CRMs, payment gateways, shipping providers, and marketing platforms. Our Advanced Commerce integration framework handles complex multi-system orchestration.

  • What happens after the project launches?

    We offer ongoing support retainers to keep your store running smoothly. Many of our development clients transition to a monthly retainer for continued maintenance, monitoring, and iterative improvements.

Ready to Start Your Development Project?

Let's discuss your requirements and create a tailored development plan for your Magento project.

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  • No obligation - just a straightforward conversation
  • You'll speak directly with a senior developer
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