Engineering Services
A WordPress and WooCommerce Engineering Partner for Agencies.
You have the client and the design. When a project needs custom plugin work, a difficult WooCommerce integration or an engineer to fix what the site builder cannot, KODENZO can be the engineering team behind it, under your name if you prefer, with a clear scope and a written handover.
The Problems We Solve
Engineering Solutions for Complex Agency Development Partnerships Challenges.
Agencies tend to hit the same limits: a requirement that page builders and off-the-shelf plugins cannot meet, a WooCommerce task the team has not done before, or a client emergency with no specialist free.
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A requirement beyond plugins and builders
The client needs behaviour no existing plugin provides, and a workaround would not survive the next update.
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A WooCommerce task your team has not done
Checkout logic, a gateway, a sync with an ERP or a 3PL: work that is risky to learn on a live client project.
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Capacity that does not match demand
A project lands, or several do, and hiring is slower than the deadline.
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A client store that breaks and nobody to look
A fatal error or a failing checkout on a client site, and no WooCommerce engineer on call.
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Handovers that cannot be maintained
Custom code without documentation that the next developer cannot safely change.
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Maintenance with no engineer behind it
Client sites that need updates tested and faults investigated, without a developer on retainer.
What We Do
Our Agency Development Partnerships Services.
What we can do behind your agency, from one scoped piece of work to ongoing help.
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Custom Plugin and Feature Development
Bespoke WordPress and WooCommerce plugins and features, built to your client's requirement and documented.
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WooCommerce Checkout and Store Work
Checkout flows, shipping and tax logic, subscriptions and store architecture for client stores.
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API and Third-Party Integrations
CRM, ERP, shipping, 3PL and marketing platform connections for your clients.
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Payment Gateway Work
Gateway plugins and fixes for client stores.
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Troubleshooting for Client Sites
Fault finding on client stores, on a staging copy first.
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Store Health Reviews
Commerce Health Free can export a scan as a CSV or PDF report, a useful starting point for reviewing a client store, followed by an engineer's review where needed.
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Technical Scoping and Estimates
A technical read of a brief so that your proposal to the client is realistic.
Engineering hours on retainer for your agency
WordPress and WooCommerce engineers behind your brand. Unused hours roll over for one month. White-label reports available.
Talk to us- 10 hours $300 / month $30 an hour
- 20 hours $500 / month $25 an hour
- 40 hours $900 / month $22.50 an hour
Featured Case Studies
Real Agency Development Partnerships Engagements.
Custom engineering from our Case Studies: plugins, gateways and integrations built from scratch for client projects.
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40% E-Commerce / Retail
Bespoke Checkout & Payment Gateway Engineering
A unified WooCommerce checkout and multi-gateway payment engine, written in custom code without third-party gateway plugins — reduced checkout latency by 40%.
Result: 40% reduction in checkout page latency (figure from the project's internal documentation)
Read Case Study -
HMAC-SHA256 Software / SaaS Licensing
License Enforcement Security Hardening & Renewal Automation
Audited a WordPress plugin licensing system, fixed a silent webhook authentication flaw that had broken remote license enforcement, and replaced manual renewal tracking with a rate-limited, automated system.
Result: License REST endpoints rate-limited (30 req/min validation, 5 req/min activation and deactivation) against brute-force key enumeration
Read Case Study -
Built From Scratch Agencies / SaaS
Logic-Driven Form Builder Engine
A drag-and-drop WordPress form builder plugin built from scratch, with conditional logic and direct CRM integration — not a page-builder add-on.
Read Case Study -
Network-Wide Agencies / Multisite Networks
Multisite-Compatible Network Payment Gateway
A payment gateway engineered for WordPress Multisite (WPMU), centralising billing across the whole network, with no fixed limit on the number of sub-sites, instead of configuring payments per site.
Read Case Study -
Multi-Service Service & Appointment Businesses
Scalable Booking Logic for Enterprise Scheduling
Refactored the Bookly booking engine for multi-service, conditional scheduling with custom multi-slot duration logic and advanced cron-based automation.
Result: Database queries optimised for variable-duration, multi-service availability checks
Read Case Study -
Per-Listing Real Estate
Secure Access Gateway for Premium Property Content
Custom user role logic and per-listing access grants, unlocking gated property data as soon as the payment provider confirms the payment — no manual approval step.
Read Case Study
Our Engineering Process
How We Deliver.
A partnership works when scope, communication and handover are clear. This is how we run it.
Introduction
A call to understand your agency, the kind of work and how you want to work with us.
Terms and Confidentiality
Terms and a confidentiality agreement before we see client details.
Scope and Estimate
A written scope and estimate for each piece of work, agreed before it starts.
Build on Staging
Work built and tested on staging, shared with you for review.
Review With You
Changes reviewed with you, in your terms, before anything reaches the client.
Handover and Support
Documentation, a handover and help after launch.
Technologies We Use
The Stack Behind the Work.
The same engineering standards we use on our own products.
Platform
Integrations
Payments
Infrastructure
Related Engineering Articles
From the Engineering Journal.
10 Common WooCommerce Problems That Are Easy to Miss
Ten issues that quietly cost stores sales and slow them down — the kind that don't show up…
The Lopsided Grid: A CSS Bug We Kept Finding (and How We Stopped)
A grid-template-columns: repeat(N, 1fr) breaks visually the moment your item count isn't an exact multiple of N. We…
The Page + CPT Hybrid: How We Rebuilt KODENZO’s Case Study System
Why /case-studies/ is a real WordPress Page and every individual study is a separate Custom Post Type —…
KODENZO Commerce Health
Is your store as fast and healthy as you think?
Find out in a few minutes, free. Then let PRO watch checkout for you in the background.
- Read-only checks across configuration, cache, database and updates
- A health score with plain-language next steps
- Nothing changes on your site, and no data is sent to us
Free on WordPress.org. Nothing in the free plugin is locked.
- Measures real-visitor checkout speed (LCP, INP and CLS) in the background
- Watches payments, checkout errors and plugin changes
- Emails you when something needs attention
PRO tells you what it finds. It does not fix problems for you.
Why KODENZO
Engineering Partner, Not Just a Developer.
Agencies need an engineering partner they can put in front of a client without worrying. This is what we offer.
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Engineering Depth
Work focused on WordPress and WooCommerce.
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Under Your Brand If You Wish
Your client relationship, our engineering.
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Scoped in Writing
Scope and estimate agreed before work starts.
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Documented Handover
Documentation you can pass to your client or your next developer.
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Our Own Products Show How We Build
Commerce Health is built to the same standard we offer clients.
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One Accountable Contact
A single person who answers for the work.
FAQ
Questions, Answered.
Questions agencies ask before working with us.
Yes, if you want us to. We work behind your brand and do not contact your clients unless you ask us to.
Yes. We are happy to agree confidentiality before we see any client details.
From a single scoped fix or plugin to larger builds. If a project is better suited to someone else, we say so.
We agree scope and price in writing before work starts. Tell us what you need and we will propose how to price it.
The Free plugin can export a scan as a CSV or PDF report, which can be a useful starting point for a client store review. It is a diagnostic tool, not a guarantee, and it does not fix problems.
Use the contact page to tell us about your agency and the first project. We will reply with questions and a proposed next step.
No questions match your search.
Need Experienced Agency Development Partnerships Engineers?
Whether you're building a new commerce platform, optimising an existing store, or solving a complex engineering challenge, KODENZO can help.