Web Development

How Mavlers modernized a legacy Shopify store - and kept the store live throughout

Project Overview

Organization

An Australian electric solutions company (via agency partner)

Industry

Electric solutions / Energy storage

Location

Australia

Engagement Model

Task-based point system via agency partner

Products / Services Used

  • Shopify Development
  • Technical Audits
  • Performance Optimization
  • QA Testing
  • Ongoing Maintenance

The client sells tailored power, motion, and energy storage products - both off-the-shelf and custom-engineered. Their Shopify store was functional enough to trade, but structurally fragile: tethered to outdated, unstructured code that made every update a risk and every new feature an ordeal.

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A partner agency brought Mavlers in to fix what the existing codebase had made unfixable through conventional means, without taking the site offline to do it.

Performance Insights

Key results for the client

1,500+

Backlog points completed

100%

Approved enhancement requests delivered

0

Critical downtime incidents

Client Objectives

The structural risks of legacy technical debt

1.
High system fragility

The site’s unstructured codebase meant that features were deeply interdependent. A fix in the product catalog often triggered unexpected regressions in the checkout flow, creating a "two steps forward, one step back" development cycle.

2.
Outdated architectural foundation

A lack of component separation and modern Shopify Liquid practices made the site static. It could not support the dynamic, custom-engineered solution queries required by the client’s industrial B2B audience.

3.
Proliferating scope

What began as incremental improvements evolved into a 1,500-point backlog. As we audited the system, layers of technical debt were uncovered, requiring a shift from simple bug-fixing to a comprehensive system refactor.

4.
Feedback loop friction

Hidden code dependencies meant that initial fixes often required multiple rework cycles. Without a structured testing framework, the agency faced high risks of deployment failure.

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Mavlers Strategy

How we stabilized and modernized the platform

1.
Strategic priority tiering

We bypassed the "all-at-once" trap by categorizing the 1,500-point backlog into three distinct tiers: Urgent (Security & Checkout), High-Impact (UX & Navigation), and Enhancements (Future-proofing). This way, that capital was allocated to the most critical stability levers first.

2.
Component separation & code refactoring

To end the cycle of regressions, our Shopify experts began decoupling interdependent code. By modernizing the Liquid architecture and separating styling from logic, we created a modular foundation where future updates could be deployed without risking system-wide failure.

3.
Rolling QA & regression framework

We implemented a rigorous "Incremental Release" protocol. Instead of large, risky deployments, updates were pushed in small, tested batches. Every release was preceded by a full regression test to ensure that legacy dependencies remained intact.

4.
High-transparency point-based execution

To manage scope creep, we utilized a task-based point system. This provided the agency partner with a real-time "value-for-money" dashboard, showing exactly how resources were being spent and the specific impact of every resolved ticket.

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Results

What the client achieved

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Mavlers didn't just solve problems - they provided a roadmap for stability and growth. Their expertise and proactive communication gave us the confidence to make informed decisions at every stage.

Sandra Field
Project Lead

Agency Partner

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