Magento Development

Custom builds, migrations, and bespoke module development

Support Retainers

Ongoing Magento 2 maintenance, monitoring, and development

ERP Integration

SAP, Sage, NetSuite, Dynamics 365, and custom integrations

Migrations & Upgrades

Platform migrations and Magento 2 version upgrades

Hyvä Development

Modern, high-performance Hyvä frontend themes

Security & Patching

Proactive security monitoring and rapid patch deployment

Performance

Speed optimisation and Core Web Vitals improvement

B2B Commerce

Custom pricing, quote systems, and company accounts

Managed Hosting

Enterprise MageStack hosting, fully managed by Interjar

Free Store Audit

Comprehensive health check across performance, security, and code quality

Case Studies

Dinny Hall

99.9% uptime through peak

Award-winning London jewellery brand with five boutiques

Joanie Clothing

65% faster load times

Fashion retailer with 300% growth over 3 years

Sosandar

99.9% uptime maintained

AIM-listed fashion brand with £40M+ revenue

Tieroom

45% increase in conversions

International luxury tie retailer

Client Testimonials

  • "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

  • "After going through a couple of agencies that did not meet our expectations, we were recommended Interjar and have now been with them for three years. Interjar are proper Magento experts and efficiently handle any issue or development requirements. I can highly recommend them."

— Christian Andersson, Director, Tieroom

  • "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

Service Features

  • Frustrated with unresponsive support?
    • Our in-house Magento specialists provide direct, expert assistance within 2 hours.
  • Worried about unexpected charges?
    • Transparent pricing with minute-by-minute billing and full visibility.
  • Overpaying for underdelivery?
    • Direct access to the developers who build and maintain your store.
  • Site performance issues?
    • Proven optimization techniques that improve speed and conversions.

Minute-by-Minute Billing

While most agencies bill in 15-minute or hour-long blocks, we track time down to the minute. This precision billing typically saves our clients 20-30%. Every minute is logged with detailed descriptions.

Direct Developer Access

Speak directly with experienced developers who know your system inside out. Clear technical communication, faster resolutions, and a team that understands your store's specific needs.

Flexible Rolling Contracts

No long-term lock-ins. Adjust retainer hours, pause service, or scale up during busy seasons. Our clients stay because of results, not contracts.

Complete Transparency

Full visibility into time logs, progress updates, and detailed reporting. Access your project dashboard 24/7. No hidden fees, surprise charges, or opaque billing.

Pricing Transparency

Other Agencies:

Tiered packages from £2,000-£4,000/month with features locked behind higher tiers and hidden fees

With Interjar:

One rate, £100/hour, billed to the minute. Every client gets access to our full range of expertise

Communication

Other Agencies:

Messages pass through multiple layers before reaching a developer, adding delays and losing technical detail

With Interjar:

Speak directly with the senior developers working on your store, no middlemen, no miscommunication

Contracts & Flexibility

Other Agencies:

12-month lock-ins with penalties for early termination and rigid monthly hour allocations

With Interjar:

Rolling 30-day contracts. Scale up, scale down, or pause, no penalties, no questions asked

Automated Security Updates

Our automated update process ensures your Magento store receives timely security patches with robust oversight. Every update is tested in a staging environment before deployment.

  • Automated security scanning
  • Staging environment testing
  • Zero-downtime deployments

Comprehensive Testing

We ensure platform stability through comprehensive automated testing, including critical paths like checkout. Our rigorous testing procedures are key to maintaining 99.9% uptime across client stores.

  • End-to-end checkout testing
  • Performance monitoring
  • 24/7 uptime checks

FAQ

  • How does your pricing work? We charge £100/hour, billed to the minute. There are no tiers, no hidden fees, and no minimum spend. Every client gets the same rate and access to our full range of expertise. You receive detailed time logs showing exactly how every minute was spent.

  • Do I need to sign a long-term contract? No. We work on rolling 30-day contracts. You can scale up, scale down, or pause at any time with no penalties. Our clients stay because of results, not contracts.

  • Who will I be working with? You'll work directly with senior Magento developers who know your store inside out. This means faster resolutions, clearer communication, and a team that understands your technical context.

  • What does it mean that Interjar is an Adobe Silver Solution Partner? It means our team holds Adobe Certified Professional certifications and we have direct access to Adobe's engineering team. This gives us early access to security patches, faster issue resolution for complex platform problems, and ensures our work follows Adobe's best practices.

  • What happens when I first contact you? We'll arrange a call to understand your requirements, review your current Magento setup, and discuss how we can help. There's no obligation and no hard sell - just a straightforward conversation about what you need and whether we're the right fit.

  • Do you outsource any of your work? No. All development is done in-house by our UK-based team. We never outsource or use offshore developers. When you hire Interjar, you get Interjar.

Get Your Free Consultation

Tell us about your project or challenge. We'll review your enquiry and respond within 4 business hours with an initial assessment - no obligation, no hard sell.